/* $Id: xotcl.c,v 1.51 2007/10/12 19:53:32 neumann Exp $ * * XOTcl - Extended Object Tcl * * Copyright (C) 1999-2007 Gustaf Neumann (a), Uwe Zdun (a) * * (a) Vienna University of Economics and Business Administration * Institute. of Information Systems and New Media * A-1090, Augasse 2-6 * Vienna, Austria * * (b) University of Essen * Specification of Software Systems * Altendorferstraße 97-101 * D-45143 Essen, Germany * * Permission to use, copy, modify, distribute, and sell this * software and its documentation for any purpose is hereby granted * without fee, provided that the above copyright notice appear in * all copies and that both that copyright notice and this permission * notice appear in supporting documentation. We make no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied * warranty. * * * This software is based upon MIT Object Tcl by David Wetherall and * Christopher J. Lindblad, that contains the following copyright * message: * * "Copyright 1993 Massachusetts Institute of Technology * * Permission to use, copy, modify, distribute, and sell this * software and its documentation for any purpose is hereby granted * without fee, provided that the above copyright notice appear in * all copies and that both that copyright notice and this * permission notice appear in supporting documentation, and that * the name of M.I.T. not be used in advertising or publicity * pertaining to distribution of the software without specific, * written prior permission. M.I.T. makes no representations about * the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty." * */ #define XOTCL_C 1 #include "xotclInt.h" #include "xotclAccessInt.h" #ifdef KEEP_TCL_CMD_TYPE /*# include "tclCompile.h"*/ #endif #ifdef COMPILE_XOTCL_STUBS extern XotclStubs xotclStubs; #endif #ifdef XOTCL_MEM_COUNT int xotclMemCountInterpCounter = 0; #endif /* * Tcl_Obj Types for XOTcl Objects */ #ifdef USE_TCL_STUBS # define XOTcl_ExprObjCmd(cd,in,objc,objv) \ XOTclCallCommand(in, XOTE_EXPR, objc, objv) # define XOTcl_SubstObjCmd(cd,in,objc,objv) \ XOTclCallCommand(in, XOTE_SUBST, objc, objv) #else # define XOTcl_ExprObjCmd(cd,in,objc,objv) \ Tcl_ExprObjCmd(cd, in, objc, objv) # define XOTcl_SubstObjCmd(cd,in,objc,objv) \ Tcl_SubstObjCmd(cd, in, objc, objv) #endif static int SetXOTclObjectFromAny(Tcl_Interp *in, Tcl_Obj *objPtr); static void UpdateStringOfXOTclObject(Tcl_Obj *objPtr); static void FreeXOTclObjectInternalRep(Tcl_Obj *objPtr); static void DupXOTclObjectInternalRep(Tcl_Obj *src, Tcl_Obj *cpy); static Tcl_Obj*NameInNamespaceObj(Tcl_Interp *in, char *name, Tcl_Namespace *ns); static Tcl_Namespace *callingNameSpace(Tcl_Interp *in); XOTCLINLINE static Tcl_Command NSFindCommand(Tcl_Interp *in, char *name, Tcl_Namespace *ns); XOTCLINLINE static void GuardAdd(Tcl_Interp *in, XOTclCmdList* filterCL, Tcl_Obj *guard); static int GuardCheck(Tcl_Interp *in, ClientData guards); static int GuardCall(XOTclObject *obj, XOTclClass* cl, Tcl_Command cmd, Tcl_Interp *in, ClientData clientData, int push); static void GuardDel(XOTclCmdList* filterCL); static int IsMetaClass(Tcl_Interp *in, XOTclClass *cl); static int hasMixin(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl); static int isSubType(XOTclClass *subcl, XOTclClass *cl); static Tcl_ObjType XOTclObjectType = { "XOTclObject", FreeXOTclObjectInternalRep, DupXOTclObjectInternalRep, UpdateStringOfXOTclObject, SetXOTclObjectFromAny }; typedef enum { CALLING_LEVEL, ACTIVE_LEVEL } CallStackLevel; typedef struct callFrameContext { int framesSaved; Tcl_CallFrame *framePtr; Tcl_CallFrame *varFramePtr; } callFrameContext; typedef struct tclCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; } tclCmdClientData; typedef struct forwardCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; Tcl_ObjCmdProc *objProc; int passthrough; int needobjmap; int verbose; ClientData cd; int nr_args; Tcl_Obj *args; int objscope; Tcl_Obj *prefix; int nr_subcommands; Tcl_Obj *subcommands; } forwardCmdClientData; typedef struct aliasCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; Tcl_ObjCmdProc *objProc; ClientData cd; } aliasCmdClientData; static int ObjDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], int flags); XOTCLINLINE static int DoDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], int flags); static int XOTclNextMethod(XOTclObject *obj, Tcl_Interp *in, XOTclClass *givenCl, char *givenMethod, int objc, Tcl_Obj *CONST objv[], int useCSObjs); static int XOTclForwardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]); static int XOTclObjscopedMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]); static int XOTclSetterMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]); static int callDestroyMethod(ClientData cd, Tcl_Interp *in, XOTclObject *obj, int flags); static int XOTclObjConvertObject(Tcl_Interp *in, register Tcl_Obj *objPtr, XOTclObject **obj); static XOTclObject *XOTclpGetObject(Tcl_Interp *in, char *name); static XOTclClass *XOTclpGetClass(Tcl_Interp *in, char *name); static XOTclCallStackContent* CallStackGetFrame(Tcl_Interp *in); #if !defined(NDEBUG) static void checkAllInstances(Tcl_Interp *in, XOTclClass *startCl, int lvl); #endif #ifdef PRE81 /* for backward compatibility only */ static int Tcl_EvalObjv(Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], int flags) { int i, result; Tcl_DString ds, *dsp = &ds; assert(flags == 0); DSTRING_INIT(dsp); for (i = 0; i < objc; i++) { Tcl_DStringAppendElement(dsp, ObjStr(objv[i])); } result = Tcl_Eval(in, Tcl_DStringValue(dsp)); DSTRING_FREE(dsp); return result; } static int Tcl_EvalEx(Tcl_Interp *in, char *cmd, int len, int flags) { return Tcl_Eval(in, cmd); } static int Tcl_SubstObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { char *ov[20]; int i; assert(objc<19); for (i=0; ifield)) #endif #endif #if defined(PRE85) && FORWARD_COMPATIBLE /* * Define the types missing for the forward compatible mode */ typedef Var * (Tcl_VarHashCreateVarFunction) _ANSI_ARGS_( (TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) ); typedef void (Tcl_InitVarHashTableFunction) _ANSI_ARGS_( (TclVarHashTable *tablePtr, Namespace *nsPtr) ); typedef void (Tcl_CleanupVarFunction) _ANSI_ARGS_ ( (Var * varPtr, Var *arrayPtr) ); typedef Var * (Tcl_DeleteVarFunction) _ANSI_ARGS_ ( (Interp *iPtr, TclVarHashTable *tablePtr) ); typedef Var * (lookupVarFromTableFunction) _ANSI_ARGS_ ( (TclVarHashTable *varTable, CONST char *simpleName, XOTclObject *obj) ); typedef struct TclVarHashTable85 { Tcl_HashTable table; struct Namespace *nsPtr; } TclVarHashTable85; typedef struct Var85 { int flags; union { Tcl_Obj *objPtr; TclVarHashTable85 *tablePtr; struct Var85 *linkPtr; } value; } Var85; typedef struct VarInHash { Var85 var; int refCount; Tcl_HashEntry entry; } VarInHash; typedef struct Tcl_CallFrame85 { Tcl_Namespace *nsPtr; int dummy1; int dummy2; char *dummy3; char *dummy4; char *dummy5; int dummy6; char *dummy7; char *dummy8; int dummy9; char *dummy10; char *dummy11; char *dummy12; } Tcl_CallFrame85; typedef struct CallFrame85 { Namespace *nsPtr; int isProcCallFrame; int objc; Tcl_Obj *CONST *objv; struct CallFrame *callerPtr; struct CallFrame *callerVarPtr; int level; Proc *procPtr; TclVarHashTable *varTablePtr; int numCompiledLocals; Var85 *compiledLocals; ClientData clientData; void *localCachePtr; } CallFrame85; /* * These are global variables, but thread-safe, since they * are only set during initialzation and they are never changed, * and the variables are single words. */ static int forwardCompatibleMode; static Tcl_VarHashCreateVarFunction *tclVarHashCreateVar; static Tcl_InitVarHashTableFunction *tclInitVarHashTable; static Tcl_CleanupVarFunction *tclCleanupVar; static lookupVarFromTableFunction *lookupVarFromTable; static int varRefCountOffset; static int varHashTableSize; # define VarHashRefCount(varPtr) \ (*((int *) (((char *)(varPtr))+varRefCountOffset))) # define VarHashGetValue(hPtr) \ (forwardCompatibleMode ? \ (Var *) ((char *)hPtr - TclOffset(VarInHash, entry)) : \ (Var *) Tcl_GetHashValue(hPtr) \ ) #define VarHashGetKey(varPtr) \ (((VarInHash *)(varPtr))->entry.key.objPtr) #define VAR_TRACED_READ85 0x10 /* TCL_TRACE_READS */ #define VAR_TRACED_WRITE85 0x20 /* TCL_TRACE_WRITES */ #define VAR_TRACED_UNSET85 0x40 /* TCL_TRACE_UNSETS */ #define VAR_TRACED_ARRAY85 0x800 /* TCL_TRACE_ARRAY */ #define VAR_TRACE_ACTIVE85 0x2000 #define VAR_SEARCH_ACTIVE85 0x4000 #define VAR_ALL_TRACES85 \ (VAR_TRACED_READ85|VAR_TRACED_WRITE85|VAR_TRACED_ARRAY85|VAR_TRACED_UNSET85) #define VAR_ARRAY85 0x1 #define VAR_LINK85 0x2 #define varFlags(varPtr) \ (forwardCompatibleMode ? \ ((Var85 *)varPtr)->flags : \ (varPtr)->flags \ ) #undef TclIsVarScalar #define TclIsVarScalar(varPtr) \ (forwardCompatibleMode ? \ !(((Var85 *)varPtr)->flags & (VAR_ARRAY85|VAR_LINK85)) : \ ((varPtr)->flags & VAR_SCALAR) \ ) #undef TclIsVarArray #define TclIsVarArray(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_ARRAY85) : \ ((varPtr)->flags & VAR_ARRAY) \ ) #define TclIsVarNamespaceVar(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_NAMESPACE_VAR) : \ ((varPtr)->flags & VAR_NAMESPACE_VAR) \ ) #define TclIsVarTraced(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_ALL_TRACES85) : \ (varPtr->tracePtr != NULL) \ ) #undef TclIsVarLink #define TclIsVarLink(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_LINK85) : \ (varPtr->flags & VAR_LINK) \ ) #undef TclIsVarUndefined #define TclIsVarUndefined(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->value.objPtr == NULL) : \ (varPtr->flags & VAR_UNDEFINED) \ ) #undef TclSetVarLink #define TclSetVarLink(varPtr) \ if (forwardCompatibleMode) \ ((Var85 *)varPtr)->flags = (((Var85 *)varPtr)->flags & ~VAR_ARRAY85) | VAR_LINK85; \ else \ (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_ARRAY)) | VAR_LINK #undef TclClearVarUndefined #define TclClearVarUndefined(varPtr) \ if (!forwardCompatibleMode) \ (varPtr)->flags &= ~VAR_UNDEFINED #undef Tcl_CallFrame_compiledLocals #define Tcl_CallFrame_compiledLocals(cf) \ (forwardCompatibleMode ? \ (Var *)(((CallFrame85 *)cf)->compiledLocals) : \ (((CallFrame*)cf)->compiledLocals) \ ) #define getNthVar(varPtr,i) \ (forwardCompatibleMode ? \ (Var *)(((Var85 *)varPtr)+(i)) : \ (((Var *)varPtr)+(i)) \ ) #define valueOfVar(type,varPtr,field) \ (forwardCompatibleMode ? \ (type *)(((Var85 *)varPtr)->value.field) : \ (type *)(((Var *)varPtr)->value.field) \ ) #endif #if !FORWARD_COMPATIBLE # define getNthVar(varPtr,i) (((Var *)varPtr)+(i)) #endif #define TclIsCompiledLocalArgument(compiledLocalPtr) \ ((compiledLocalPtr)->flags & VAR_ARGUMENT) #define TclIsCompiledLocalTemporary(compiledLocalPtr) \ ((compiledLocalPtr)->flags & VAR_TEMPORARY) #if defined(PRE85) && !FORWARD_COMPATIBLE # define VarHashGetValue(hPtr) (Var *)Tcl_GetHashValue(hPtr) # define VarHashRefCount(varPtr) (varPtr)->refCount # define TclIsVarTraced(varPtr) (varPtr->tracePtr != NULL) # define TclIsVarNamespaceVar(varPtr) ((varPtr)->flags & VAR_NAMESPACE_VAR) # define varHashTableSize sizeof(TclVarHashTable) # define valueOfVar(type,varPtr,field) (type *)(varPtr)->value.field #endif #if defined(PRE85) /* * We need NewVar from tclVar.c ... but its not exported */ static Var *NewVar84() { register Var *varPtr; varPtr = (Var *) ckalloc(sizeof(Var)); varPtr->value.objPtr = NULL; varPtr->name = NULL; varPtr->nsPtr = NULL; varPtr->hPtr = NULL; varPtr->refCount = 0; varPtr->tracePtr = NULL; varPtr->searchPtr = NULL; varPtr->flags = (VAR_SCALAR | VAR_UNDEFINED | VAR_IN_HASHTABLE); return varPtr; } static Var * VarHashCreateVar84(TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) { char *newName = ObjStr(key); Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(tablePtr, newName, newPtr); Var *varPtr; if (newPtr && *newPtr) { varPtr = NewVar84(); Tcl_SetHashValue(hPtr, varPtr); varPtr->hPtr = hPtr; varPtr->nsPtr = NULL; /* a local variable */ } else { varPtr = (Var *) Tcl_GetHashValue(hPtr); } return varPtr; } static void InitVarHashTable84(TclVarHashTable *tablePtr, Namespace *nsPtr) { /* fprintf(stderr,"InitVarHashTable84\n"); */ Tcl_InitHashTable((tablePtr), TCL_STRING_KEYS); } static void TclCleanupVar84(Var * varPtr, Var *arrayPtr) { if (TclIsVarUndefined(varPtr) && (varPtr->refCount == 0) && (varPtr->tracePtr == NULL) && (varPtr->flags & VAR_IN_HASHTABLE)) { if (varPtr->hPtr != NULL) { Tcl_DeleteHashEntry(varPtr->hPtr); } ckfree((char *) varPtr); } if (arrayPtr != NULL) { if (TclIsVarUndefined(arrayPtr) && (arrayPtr->refCount == 0) && (arrayPtr->tracePtr == NULL) && (arrayPtr->flags & VAR_IN_HASHTABLE)) { if (arrayPtr->hPtr != NULL) { Tcl_DeleteHashEntry(arrayPtr->hPtr); } ckfree((char *) arrayPtr); } } } static Var * LookupVarFromTable84(TclVarHashTable *varTable, CONST char *simpleName, XOTclObject *obj) { Var *varPtr = NULL; Tcl_HashEntry *entryPtr; if (varTable) { entryPtr = Tcl_FindHashEntry(varTable, simpleName); if (entryPtr) { varPtr = VarHashGetValue(entryPtr); } } return varPtr; } #endif #if defined(PRE85) # if FORWARD_COMPATIBLE # define VarHashCreateVar (*tclVarHashCreateVar) # define InitVarHashTable (*tclInitVarHashTable) # define CleanupVar (*tclCleanupVar) # define LookupVarFromTable (*lookupVarFromTable) # define TclCallFrame Tcl_CallFrame85 # else # define VarHashCreateVar VarHashCreateVar84 # define InitVarHashTable InitVarHashTable84 # define CleanupVar TclCleanupVar84 # define LookupVarFromTable LookupVarFromTable84 # define TclCallFrame Tcl_CallFrame # endif #else # define VarHashCreateVar VarHashCreateVar85 # define InitVarHashTable TclInitVarHashTable # define CleanupVar TclCleanupVar # define LookupVarFromTable LookupVarFromTable85 # define TclCallFrame Tcl_CallFrame #endif #if defined(PRE85) /* * for backward compatibility */ #define VarHashTable(t) t #define TclVarHashTable Tcl_HashTable static Var * XOTclObjLookupVar(Tcl_Interp *interp, Tcl_Obj *part1Ptr, CONST char *part2, int flags, const char *msg, int createPart1, int createPart2, Var **arrayPtrPtr) { return TclLookupVar(interp, ObjStr(part1Ptr), part2, flags, msg, createPart1, createPart2, arrayPtrPtr); } #define ObjFindNamespace(interp, objPtr) \ Tcl_FindNamespace((interp), ObjStr(objPtr), NULL, 0); #else /* * definitions for tcl 8.5 */ #define VarHashGetValue(hPtr) \ ((Var *) ((char *)hPtr - TclOffset(VarInHash, entry))) #define VarHashGetKey(varPtr) \ (((VarInHash *)(varPtr))->entry.key.objPtr) #define VarHashTable(varTable) \ &(varTable)->table #define XOTclObjLookupVar TclObjLookupVar #define varHashTableSize sizeof(TclVarHashTable) #define valueOfVar(type,varPtr,field) (type *)(varPtr)->value.field XOTCLINLINE static Tcl_Namespace * ObjFindNamespace(Tcl_Interp *interp, Tcl_Obj *objPtr) { Tcl_Namespace *nsPtr; if (TclGetNamespaceFromObj(interp, objPtr, &nsPtr) == TCL_OK) { return nsPtr; } else { return NULL; } } #endif #if !defined(PRE85) || FORWARD_COMPATIBLE static XOTCLINLINE Var * VarHashCreateVar85(TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) { Var *varPtr = NULL; Tcl_HashEntry *hPtr; hPtr = Tcl_CreateHashEntry((Tcl_HashTable *) tablePtr, (char *) key, newPtr); if (hPtr) { varPtr = VarHashGetValue(hPtr); } return varPtr; } static XOTCLINLINE Var * LookupVarFromTable85(TclVarHashTable *tablePtr, CONST char *simpleName, XOTclObject *obj) { Var *varPtr = NULL; if (tablePtr) { Tcl_Obj *keyPtr = Tcl_NewStringObj(simpleName, -1); Tcl_IncrRefCount(keyPtr); varPtr = VarHashCreateVar85(tablePtr, keyPtr, NULL); Tcl_DecrRefCount(keyPtr); } return varPtr; } #endif /* * call an XOTcl method */ static int callMethod(ClientData cd, Tcl_Interp *in, Tcl_Obj *method, int objc, Tcl_Obj *CONST objv[], int flags) { XOTclObject *obj = (XOTclObject*) cd; int result; ALLOC_ON_STACK(Tcl_Obj*,objc, tov); tov[0] = obj->cmdName; tov[1] = method; if (objc>2) memcpy(tov+2, objv, sizeof(Tcl_Obj *)*(objc-2)); /*fprintf(stderr, "%%%% callMethod cmdname=%s, method=%s, objc=%d\n", ObjStr(tov[0]),ObjStr(tov[1]),objc);*/ result = DoDispatch(cd, in, objc, tov, flags); /*fprintf(stderr, " callMethod returns %d\n", result);*/ FREE_ON_STACK(tov); return result; } int XOTclCallMethodWithArgs(ClientData cd, Tcl_Interp *in, Tcl_Obj *method, Tcl_Obj *arg, int givenobjc, Tcl_Obj *CONST objv[], int flags) { XOTclObject *obj = (XOTclObject*) cd; int objc = givenobjc + 2; int result; ALLOC_ON_STACK(Tcl_Obj*,objc, tov); assert(objc>1); tov[0] = obj->cmdName; tov[1] = method; if (objc>2) { tov[2] = arg; } if (objc>3) memcpy(tov+3, objv, sizeof(Tcl_Obj *)*(objc-3)); result = DoDispatch(cd, in, objc, tov, flags); FREE_ON_STACK(tov); return result; } /* * realize self, class, proc through the [self] command */ XOTCLINLINE static CONST84 char * GetSelfProc(Tcl_Interp *in) { /*return Tcl_GetCommandName(in, RUNTIME_STATE(in)->cs.top->cmdPtr);*/ return Tcl_GetCommandName(in, CallStackGetFrame(in)->cmdPtr); } XOTCLINLINE static XOTclClass* GetSelfClass(Tcl_Interp *in) { /*return RUNTIME_STATE(in)->cs.top->cl;*/ return CallStackGetFrame(in)->cl; } XOTCLINLINE static XOTclObject* GetSelfObj(Tcl_Interp *in) { return CallStackGetFrame(in)->self; } /* extern callable GetSelfObj */ XOTcl_Object* XOTclGetSelfObj(Tcl_Interp *in) { return (XOTcl_Object*)GetSelfObj(in); } XOTCLINLINE static Tcl_Command GetSelfProcCmdPtr(Tcl_Interp *in) { /*return RUNTIME_STATE(in)->cs.top->cmdPtr;*/ return CallStackGetFrame(in)->cmdPtr; } /* * prints a msg to the screen that oldCmd is deprecated * optinal: give a new cmd */ extern void XOTclDeprecatedMsg(char *oldCmd, char *newCmd) { fprintf(stderr, "**\n**\n** The command/method <%s> is deprecated.\n", oldCmd); if (newCmd) fprintf(stderr, "** Use <%s> instead.\n", newCmd); fprintf(stderr, "**\n"); } static int XOTcl_DeprecatedCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { char *new; if (objc == 2) new = 0; else if (objc == 3) new = ObjStr(objv[2]); else return XOTclObjErrArgCnt(in, NULL, "deprecated oldcmd ?newcmd?"); XOTclDeprecatedMsg(ObjStr(objv[1]), new); return TCL_OK; } #ifdef DISPATCH_TRACE static void printObjv(int objc, Tcl_Obj *CONST objv[]) { int i, j; if (objc <= 3) j = objc; else j = 3; for (i=0;i 3) fprintf(stderr," ..."); fprintf(stderr," (objc=%d)",objc); } static void printCall(Tcl_Interp *in, char *string, int objc, Tcl_Obj *CONST objv[]) { fprintf(stderr, " (%d) >%s: ", Tcl_Interp_numLevels(in), string); printObjv(objc, objv); fprintf(stderr, "\n"); } static void printExit(Tcl_Interp *in, char *string, int objc, Tcl_Obj *CONST objv[], int result) { fprintf(stderr, " (%d) <%s: ", Tcl_Interp_numLevels(in), string); /*printObjv(objc, objv);*/ fprintf(stderr, " result=%d\n", result); } #endif /* * XOTclObject Reference Accounting */ #if defined(XOTCLOBJ_TRACE) # define XOTclObjectRefCountIncr(obj) \ obj->refCount++; \ fprintf(stderr, "RefCountIncr %p count=%d %s\n", obj, obj->refCount,obj->cmdName?ObjStr(obj->cmdName):"no name"); \ MEM_COUNT_ALLOC("XOTclObject RefCount",obj) # define XOTclObjectRefCountDecr(obj) \ obj->refCount--; \ fprintf(stderr, "RefCountDecr %p count=%d\n", obj, obj->refCount); \ MEM_COUNT_FREE("XOTclObject RefCount", obj) #else # define XOTclObjectRefCountIncr(obj) \ obj->refCount++; \ MEM_COUNT_ALLOC("XOTclObject RefCount",obj) # define XOTclObjectRefCountDecr(obj) \ obj->refCount--; \ MEM_COUNT_FREE("XOTclObject RefCount",obj) #endif #if defined(XOTCLOBJ_TRACE) void objTrace(char *string, XOTclObject *obj) { if (obj) fprintf(stderr,"--- %s tcl %p %s (%d %p) xotcl %p (%d) %s \n", string, obj->cmdName, obj->cmdName->typePtr ? obj->cmdName->typePtr->name : "NULL", obj->cmdName->refCount, obj->cmdName->internalRep.twoPtrValue.ptr1, obj, obj->refCount, ObjStr(obj->cmdName)); else fprintf(stderr,"--- No object: %s\n",string); } #else # define objTrace(a,b) #endif /* search for tail of name */ static char * NSTail(char *string) { register char *p = string+strlen(string); while (p > string) { if (*p == ':' && *(p-1) == ':') return p+1; p--; } return string; } XOTCLINLINE static int isClassName(char *string) { return (strncmp((string), "::xotcl::classes", 16) == 0); } /* removes preceding ::xotcl::classes from a string */ XOTCLINLINE static char * NSCutXOTclClasses(char *string) { assert(strncmp((string), "::xotcl::classes", 16) == 0); return string+16; } XOTCLINLINE static char * NSCmdFullName(Tcl_Command cmd) { Tcl_Namespace *nsPtr = Tcl_Command_nsPtr(cmd); return nsPtr ? nsPtr->fullName : ""; } static void XOTclCleanupObject(XOTclObject *obj) { XOTclObjectRefCountDecr(obj); #if REFCOUNT_TRACE fprintf(stderr,"###CLNO %p refcount = %d\n", obj, obj->refCount); #endif if (obj->refCount <= 0) { assert(obj->refCount == 0); assert(obj->flags & XOTCL_DESTROYED); #if REFCOUNT_TRACE fprintf(stderr,"###CLNO %p flags %x rc %d destr %d dc %d\n", obj, obj->flags, (obj->flags & XOTCL_REFCOUNTED) != 0, (obj->flags & XOTCL_DESTROYED) != 0, (obj->flags & XOTCL_DESTROY_CALLED) != 0 ); #endif MEM_COUNT_FREE("XOTclObject/XOTclClass",obj); #if defined(XOTCLOBJ_TRACE) || defined(REFCOUNT_TRACE) fprintf(stderr, "CKFREE Object %p refcount=%d\n", obj, obj->refCount); #endif #if !defined(NDEBUG) memset(obj, 0, sizeof(XOTclObject)); #endif /* fprintf(stderr,"CKFREE obj %p\n",obj);*/ ckfree((char *) obj); } } /* * Tcl_Obj functions for objects */ static void RegisterObjTypes() { Tcl_RegisterObjType(&XOTclObjectType); } static void FreeXOTclObjectInternalRep(register Tcl_Obj *objPtr) { XOTclObject *obj = (XOTclObject*) objPtr->internalRep.otherValuePtr; /* fprintf(stderr,"FIP objPtr %p obj %p obj->cmd %p '%s', bytes='%s'\n", objPtr,obj, obj->cmdName, ObjStr(obj->cmdName), objPtr->bytes); */ #if defined(XOTCLOBJ_TRACE) if (obj) fprintf(stderr,"FIP --- tcl %p (%d)\n",objPtr,objPtr->refCount); #endif #if !defined(REFCOUNTED) if (obj != NULL) { XOTclCleanupObject(obj); } #else if (obj != NULL) { #if REFCOUNT_TRACE fprintf(stderr, "FIP in %p\n", obj->teardown); fprintf(stderr, "FIP call is destroy %d\n", RUNTIME_STATE(obj->teardown)->callIsDestroy); fprintf(stderr,"FIP %p flags %x rc %d destr %d dc %d refcount = %d\n", obj, obj->flags, (obj->flags & XOTCL_REFCOUNTED) != 0, (obj->flags & XOTCL_DESTROYED) != 0, (obj->flags & XOTCL_DESTROY_CALLED) != 0, obj->refCount ); #endif if (obj->flags & XOTCL_REFCOUNTED && !(obj->flags & XOTCL_DESTROY_CALLED)) { Tcl_Interp *in = obj->teardown; INCR_REF_COUNT(obj->cmdName); callDestroyMethod((ClientData)obj, in, obj, 0); /* the call to cleanup is the counterpart of the INCR_REF_COUNT(obj->cmdName) above */ XOTclCleanupObject(obj); } else { fprintf(stderr, "BEFORE CLEANUPOBJ %x\n", (obj->flags & XOTCL_REFCOUNTED)); XOTclCleanupObject(obj); fprintf(stderr, "AFTER CLEANUPOBJ\n"); } } #endif objPtr->internalRep.otherValuePtr = NULL; objPtr->typePtr = NULL; } static void DupXOTclObjectInternalRep(Tcl_Obj *src, Tcl_Obj *cpy) { XOTclObject *obj = (XOTclObject*)src->internalRep.otherValuePtr; #if defined(XOTCLOBJ_TRACE) if (obj) fprintf(stderr,"DIP --- tcl %p (%d)\n", src, src->refCount); #endif XOTclObjectRefCountIncr(obj); cpy->internalRep.otherValuePtr = src->internalRep.otherValuePtr; cpy->typePtr = src->typePtr; } static int SetXOTclObjectFromAny(Tcl_Interp *in, register Tcl_Obj *objPtr) { Tcl_ObjType *oldTypePtr = objPtr->typePtr; char *string = ObjStr(objPtr); XOTclObject *obj; Tcl_Obj *tmpName = NULL; int result = TCL_OK; #ifdef XOTCLOBJ_TRACE fprintf(stderr,"SetXOTclObjectFromAny %p '%s' %p\n", objPtr,string,objPtr->typePtr); if (oldTypePtr) fprintf(stderr," convert %s to XOTclObject\n", oldTypePtr->name); #endif if (!isAbsolutePath(string)) { char *nsString; tmpName = NameInNamespaceObj(in,string,callingNameSpace(in)); nsString = ObjStr(tmpName); INCR_REF_COUNT(tmpName); obj = XOTclpGetObject(in, nsString); DECR_REF_COUNT(tmpName); if (!obj) { /* retry with global namespace */ tmpName = Tcl_NewStringObj("::",2); Tcl_AppendToObj(tmpName,string,-1); INCR_REF_COUNT(tmpName); obj = XOTclpGetObject(in, ObjStr(tmpName)); DECR_REF_COUNT(tmpName); } } else { obj = XOTclpGetObject(in, string); } #if 0 obj = XOTclpGetObject(in, string); #endif if (obj) { if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) { #ifdef XOTCLOBJ_TRACE fprintf(stderr," freeing type=%p, type=%s\n", objPtr->typePtr, objPtr->typePtr ? objPtr->typePtr->name : ""); #endif oldTypePtr->freeIntRepProc(objPtr); } XOTclObjectRefCountIncr(obj); #if defined(XOTCLOBJ_TRACE) fprintf(stderr, "SetXOTclObjectFromAny tcl %p (%d) xotcl %p (%d)\n", objPtr, objPtr->refCount, obj, obj->refCount); #endif objPtr->internalRep.otherValuePtr = (XOTclObject*) obj; objPtr->typePtr = &XOTclObjectType; } else result = TCL_ERROR; return result; } static void UpdateStringOfXOTclObject(register Tcl_Obj *objPtr) { XOTclObject *obj = (XOTclObject *)objPtr->internalRep.otherValuePtr; char *nsFullName = NULL; #ifdef XOTCLOBJ_TRACE fprintf(stderr,"UpdateStringOfXOTclObject %p refCount %d\n", objPtr,objPtr->refCount); fprintf(stderr," teardown %p id %p destroyCalled %d\n", obj->teardown, obj->id, (obj->flags & XOTCL_DESTROY_CALLED)); #endif /* Here we use GetCommandName, because it doesnt need Interp*, but Tcl_GetCommandFullName(in,obj->id,ObjName); does*/ if (obj && !(obj->flags & XOTCL_DESTROY_CALLED)) { Tcl_DString ds, *dsp = &ds; unsigned l; DSTRING_INIT(dsp); nsFullName = NSCmdFullName(obj->id); if (!(*nsFullName==':' && *(nsFullName+1)==':' && *(nsFullName+2)=='\0')) { Tcl_DStringAppend(dsp, nsFullName, -1); } Tcl_DStringAppend(dsp, "::", 2); Tcl_DStringAppend(dsp, Tcl_GetCommandName(NULL, obj->id), -1); l = (unsigned) Tcl_DStringLength(dsp)+1; objPtr->bytes = (char *) ckalloc(l); memcpy(objPtr->bytes, Tcl_DStringValue(dsp), l); objPtr->length = Tcl_DStringLength(dsp); DSTRING_FREE(dsp); } else if (obj) { fprintf(stderr,"try to read string of deleted command\n"); FreeXOTclObjectInternalRep(objPtr); objPtr->bytes = NULL; objPtr->length = 0; } else { objPtr->bytes = NULL; objPtr->length = 0; } /* fprintf(stderr, "+++UpdateStringOfXOTclObject bytes='%s',length=%d\n", objPtr->bytes,objPtr->length); */ } #ifdef NOTUSED static Tcl_Obj * NewXOTclObjectObj(register XOTclObject *obj) { register Tcl_Obj *objPtr = 0; XOTclNewObj(objPtr); objPtr->bytes = NULL; objPtr->internalRep.otherValuePtr = obj; objPtr->typePtr = &XOTclObjectType; #ifdef XOTCLOBJ_TRACE fprintf(stderr,"NewXOTclObjectObj %p\n",objPtr); #endif return objPtr; } #endif static Tcl_Obj * NewXOTclObjectObjName(register XOTclObject *obj, char *name, unsigned l) { register Tcl_Obj *objPtr = 0; XOTclNewObj(objPtr); objPtr->length = l; objPtr->bytes = ckalloc(l+1); memcpy(objPtr->bytes, name, l); *(objPtr->bytes+l) = 0; objPtr->internalRep.otherValuePtr = obj; objPtr->typePtr = &XOTclObjectType; #ifdef XOTCLOBJ_TRACE fprintf(stderr,"NewXOTclObjectObjName tcl %p (%d) xotcl %p (%d) %s\n", objPtr, objPtr->refCount, obj, obj->refCount, objPtr->bytes); #endif XOTclObjectRefCountIncr(obj); return objPtr; } #ifdef KEEP_TCL_CMD_TYPE XOTCLINLINE static Tcl_ObjType * GetCmdNameType(Tcl_ObjType *cmdType) { static Tcl_ObjType *tclCmdNameType = NULL; if (tclCmdNameType == NULL) { # if defined(PRE82) if (cmdType && cmdType != &XOTclObjectType && !strcmp(cmdType->name,"cmdName")) { tclCmdNameType = cmdType; } # else static XOTclMutex initMutex = 0; XOTclMutexLock(&initMutex); if (tclCmdNameType == NULL) tclCmdNameType = Tcl_GetObjType("cmdName"); XOTclMutexUnlock(&initMutex); # endif } return tclCmdNameType; } #endif #if NOTUSED static int XOTclObjGetObject(Tcl_Interp *in, register Tcl_Obj *objPtr, XOTclObject **obj) { int result; register Tcl_ObjType *cmdType = objPtr->typePtr; XOTclObject *o; if (cmdType == &XOTclObjectType) { o = (XOTclObject*) objPtr->internalRep.otherValuePtr; if (!(o->flags & XOTCL_DESTROYED)) { *obj = o; return TCL_OK; } } if (cmdType == GetCmdNameType(cmdType)) { Tcl_Command cmd = Tcl_GetCommandFromObj(in, objPtr); /*fprintf(stderr,"obj is of type tclCmd\n");*/ if (cmd) { o = XOTclGetObjectFromCmdPtr(cmd); if (o) { *obj = o; return TCL_OK; } } } o = XOTclpGetObject(in, ObjStr(objPtr)); if (o) { *obj = o; return TCL_OK; } return TCL_ERROR; } #endif static int XOTclObjConvertObject(Tcl_Interp *in, Tcl_Obj *objPtr, XOTclObject **obj) { int result; register Tcl_ObjType *cmdType = objPtr->typePtr; /* * Only really share the "::x" Tcl_Objs but not "x" because we so not have * references upon object kills and then will get dangling * internalRep references to killed XOTclObjects */ if (cmdType == &XOTclObjectType) { /*fprintf(stderr,"obj is of type XOTclObjectType\n");*/ if (obj) { XOTclObject *o = (XOTclObject*) objPtr->internalRep.otherValuePtr; int refetch = 0; if (o->flags & XOTCL_DESTROYED) { /* fprintf(stderr,"????? calling free by hand\n"); */ FreeXOTclObjectInternalRep(objPtr); refetch = 1; result = SetXOTclObjectFromAny(in, objPtr); if (result == TCL_OK) { o = (XOTclObject*) objPtr->internalRep.otherValuePtr; assert(o && !(o->flags & XOTCL_DESTROYED)); } } else { result = TCL_OK; } *obj = o; #ifdef XOTCLOBJ_TRACE if (result == TCL_OK) fprintf(stderr,"XOTclObjConvertObject tcl %p (%d) xotcl %p (%d) r=%d %s\n", objPtr, objPtr->refCount, o, o->refCount, refetch, objPtr->bytes); else fprintf(stderr,"XOTclObjConvertObject tcl %p (%d) **** rc=%d r=%d %s\n", objPtr, objPtr->refCount, result, refetch, objPtr->bytes); #endif } else { result = TCL_OK; } #ifdef KEEP_TCL_CMD_TYPE } else if (cmdType == GetCmdNameType(cmdType)) { Tcl_Command cmd = Tcl_GetCommandFromObj(in, objPtr); /*fprintf(stderr,"obj %s is of type tclCmd, cmd=%p\n",ObjStr(objPtr),cmd);*/ if (cmd) { XOTclObject *o = XOTclGetObjectFromCmdPtr(cmd); /* fprintf(stderr,"Got Object from '%s' %p\n",objPtr->bytes,o); fprintf(stderr,"cmd->objProc %p == %p, proc=%p\n", Tcl_Command_objProc(cmd), XOTclObjDispatch, Tcl_Command_proc(cmd) ); */ if (o) { if (obj) *obj = o; result = TCL_OK; } else { goto convert_to_xotcl_object; } } else goto convert_to_xotcl_object; #endif } else { #ifdef KEEP_TCL_CMD_TYPE convert_to_xotcl_object: #endif result = SetXOTclObjectFromAny(in, objPtr); if (result == TCL_OK && obj) { *obj = (XOTclObject*) objPtr->internalRep.otherValuePtr; } } return result; } #ifndef NAMESPACEINSTPROCS static Tcl_Namespace * GetCallerVarFrame(Tcl_Interp *in, Tcl_CallFrame *varFramePtr) { Tcl_Namespace *nsPtr = NULL; if (varFramePtr) { Tcl_CallFrame *callerVarPtr = Tcl_CallFrame_callerVarPtr(varFramePtr); if (callerVarPtr) { nsPtr = (Tcl_Namespace *)callerVarPtr->nsPtr; } } if (nsPtr == NULL) nsPtr = Tcl_Interp_globalNsPtr(in); return nsPtr; } #endif static Tcl_Obj* NameInNamespaceObj(Tcl_Interp *in, char *name, Tcl_Namespace *ns) { Tcl_Obj *objName; int len; char *p; /*fprintf(stderr,"NameInNamespaceObj %s (%p) ",name,ns);*/ if (!ns) ns = Tcl_GetCurrentNamespace(in); objName = Tcl_NewStringObj(ns->fullName,-1); len = Tcl_GetCharLength(objName); p = ObjStr(objName); if (len == 2 && p[0] == ':' && p[1] == ':') { } else { Tcl_AppendToObj(objName,"::",2); } Tcl_AppendToObj(objName, name, -1); /*fprintf(stderr,"returns %s\n",ObjStr(objName));*/ return objName; } static int GetXOTclClassFromObj(Tcl_Interp *in, register Tcl_Obj *objPtr, XOTclClass **cl, int retry) { XOTclObject *obj; XOTclClass *cls = NULL; int result = TCL_OK; char *objName = ObjStr(objPtr); /*fprintf(stderr, "GetXOTclClassFromObj %s retry %d\n", objName, retry);*/ if (retry) { /* we refer to an existing object; use command resolver */ if (!isAbsolutePath(objName)) { Tcl_Command cmd = NSFindCommand(in, objName, callingNameSpace(in)); /*fprintf(stderr, "GetXOTclClassFromObj %s cmd = %p cl=%p retry=%d\n", objName, cmd, cmd ? XOTclGetClassFromCmdPtr(cmd) : NULL, retry);*/ if (cmd) { cls = XOTclGetClassFromCmdPtr(cmd); if (cl) *cl = cls; } } } if (!cls) { result = XOTclObjConvertObject(in, objPtr, &obj); if (result == TCL_OK) { cls = XOTclObjectToClass(obj); if (cls) { if (cl) *cl = cls; } else { /* we have an object, but no class */ result = TCL_ERROR; } } } if (!cls && retry) { Tcl_Obj *ov[3]; ov[0] = RUNTIME_STATE(in)->theClass->object.cmdName; ov[1] = XOTclGlobalObjects[XOTE___UNKNOWN]; if (isAbsolutePath(objName)) { ov[2] = objPtr; } else { ov[2] = NameInNamespaceObj(in,objName,callingNameSpace(in)); } INCR_REF_COUNT(ov[2]); /*fprintf(stderr,"+++ calling %s __unknown for %s, objPtr=%s\n", ObjStr(ov[0]), ObjStr(ov[2]), ObjStr(objPtr)); */ result = Tcl_EvalObjv(in, 3, ov, 0); if (result == TCL_OK) { result = GetXOTclClassFromObj(in, objPtr, cl, 0); } DECR_REF_COUNT(ov[2]); } /*fprintf(stderr, "GetXOTclClassFromObj %s returns %d cls = %p *cl = %p\n", objName, result, cls, cl?*cl:NULL);*/ return result; } extern void XOTclFreeClasses(XOTclClasses* sl) { XOTclClasses *n; for (; sl; sl = n) { n = sl->next; FREE(XOTclClasses,sl); } } extern XOTclClasses** XOTclAddClass(XOTclClasses **cList, XOTclClass *cl, ClientData cd) { XOTclClasses *l = *cList, *element = NEW(XOTclClasses); element->cl = cl; element->clientData = cd; element->next = NULL; if (l) { while (l->next) l = l->next; l->next = element; } else *cList = element; return &(element->next); } /* * precedence ordering functions */ enum colors { WHITE, GRAY, BLACK }; static XOTclClasses* Super(XOTclClass *cl) { return cl->super; } static XOTclClasses* Sub(XOTclClass *cl) { return cl->sub; } static int TopoSort(XOTclClass *cl, XOTclClass *base, XOTclClasses* (*next)(XOTclClass*)) { /*XOTclClasses* sl = (*next)(cl);*/ XOTclClasses* sl = next == Super ? cl->super : cl->sub; XOTclClasses* pl; /* * careful to reset the color of unreported classes to * white in case we unwind with error, and on final exit * reset color of reported classes to white */ cl->color = GRAY; for (; sl != 0; sl = sl->next) { XOTclClass *sc = sl->cl; if (sc->color == GRAY) { cl->color = WHITE; return 0; } if (sc->color == WHITE && !TopoSort(sc, base, next)) { cl->color = WHITE; if (cl == base) { XOTclClasses* pc = cl->order; while (pc != 0) { pc->cl->color = WHITE; pc = pc->next; } } return 0; } } cl->color = BLACK; pl = NEW(XOTclClasses); pl->cl = cl; pl->next = base->order; base->order = pl; if (cl == base) { XOTclClasses* pc = cl->order; while (pc != 0) { pc->cl->color = WHITE; pc = pc->next; } } return 1; } static XOTclClasses* TopoOrder(XOTclClass *cl, XOTclClasses* (*next)(XOTclClass*)) { if (TopoSort(cl, cl, next)) return cl->order; XOTclFreeClasses(cl->order); cl->order = 0; return 0; } static XOTclClasses* ComputeOrder(XOTclClass *cl, XOTclClasses *order, XOTclClasses* (*direction)(XOTclClass*)) { if (order) return order; return (cl->order = TopoOrder(cl, direction)); } extern XOTclClasses* XOTclComputePrecedence(XOTclClass *cl) { return ComputeOrder(cl, cl->order, Super); } extern XOTclClasses* XOTclComputeDependents(XOTclClass *cl) { return ComputeOrder(cl, cl->order, Sub); } static void FlushPrecedences(XOTclClass *cl) { XOTclClasses* pc; XOTclFreeClasses(cl->order); cl->order = 0; pc = ComputeOrder(cl, cl->order, Sub); /* * ordering doesn't matter here - we're just using toposort * to find all lower classes so we can flush their caches */ if (pc) pc = pc->next; for (; pc; pc = pc->next) { XOTclFreeClasses(pc->cl->order); pc->cl->order = 0; } XOTclFreeClasses(cl->order); cl->order = 0; } static void AddInstance(XOTclObject *obj, XOTclClass *cl) { obj->cl = cl; if (cl != 0) { int nw; (void) Tcl_CreateHashEntry(&cl->instances, (char *)obj, &nw); } } static int RemoveInstance(XOTclObject *obj, XOTclClass *cl) { if (cl) { Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&cl->instances, (char *)obj); if (hPtr) { Tcl_DeleteHashEntry(hPtr); return 1; } } return 0; } /* * superclass/subclass list maintenance */ static void AS(XOTclClass *cl, XOTclClass *s, XOTclClasses **sl) { register XOTclClasses* l = *sl; while (l && l->cl != s) l = l->next; if (!l) { XOTclClasses* sc = NEW(XOTclClasses); sc->cl = s; sc->next = *sl; *sl = sc; } } static void AddSuper(XOTclClass *cl, XOTclClass *super) { if (cl && super) { /* * keep corresponding sub in step with super */ AS(cl, super, &cl->super); AS(super, cl, &super->sub); } } static int RemoveSuper1(XOTclClass *cl, XOTclClass *s, XOTclClasses **sl) { XOTclClasses* l = *sl; if (!l) return 0; if (l->cl == s) { *sl = l->next; FREE(XOTclClasses,l); return 1; } while (l->next && l->next->cl != s) l = l->next; if (l->next) { XOTclClasses* n = l->next->next; FREE(XOTclClasses,l->next); l->next = n; return 1; } return 0; } static int RemoveSuper(XOTclClass *cl, XOTclClass *super) { /* * keep corresponding sub in step with super */ int sp = RemoveSuper1(cl, super, &cl->super); int sb = RemoveSuper1(super, cl, &super->sub); return sp && sb; } /* * internal type checking */ extern XOTcl_Class* XOTclIsClass(Tcl_Interp *in, ClientData cd) { if (cd && XOTclObjectIsClass((XOTclObject *)cd)) return (XOTcl_Class*) cd; return 0; } /* * methods lookup */ /*XOTCLINLINE*/ static Tcl_Command FindMethod(char *methodName, Tcl_Namespace* nsPtr) { Tcl_HashEntry *entryPtr; #if 0 Tcl_HashTable *cmdTable; /* if somebody messes around with the deleteProc, we conclude that the entries of the cmdTable are not ours ... */ cmdTable = Tcl_Namespace_deleteProc(nsPtr) ? Tcl_Namespace_cmdTable(nsPtr) : NULL ; if (cmdTable== NULL) { fprintf(stderr,"********************** FindMethod %s cmdTable = %p\n",methodName, cmdTable); } /*fprintf(stderr,"FindMethod '%s', cmdTable %p ns=%p \n",methodName,cmdTable,nsPtr);*/ if (cmdTable && (entryPtr = Tcl_FindHashEntry(cmdTable, methodName))) { return (Tcl_Command) Tcl_GetHashValue(entryPtr); } /*fprintf(stderr, "find %s in %p returns %p\n",methodName,cmdTable,cmd);*/ return NULL; #endif if ((entryPtr = Tcl_FindHashEntry(Tcl_Namespace_cmdTable(nsPtr), methodName))) { return (Tcl_Command) Tcl_GetHashValue(entryPtr); } /*fprintf(stderr, "find %s in %p returns %p\n",methodName,cmdTable,cmd);*/ return NULL; } static XOTclClass* SearchPLMethod(register XOTclClasses* pl, char *nm, Tcl_Command *cmd) { /* Search the class hierarchy */ for (; pl; pl = pl->next) { Tcl_Command pi = FindMethod(nm, pl->cl->nsPtr); if (pi) { *cmd = pi; return pl->cl; } } return NULL; } static XOTclClass* SearchCMethod(XOTclClass *cl, char *nm, Tcl_Command *cmd) { assert(cl); return SearchPLMethod(ComputeOrder(cl, cl->order, Super), nm, cmd); } static int callDestroyMethod(ClientData cd, Tcl_Interp *in, XOTclObject *obj, int flags) { int result; /* don't call destroy after exit handler started physical destruction */ if (RUNTIME_STATE(in)->exitHandlerDestroyRound == XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY) return TCL_OK; /* fprintf(stderr," obj %p flags %.4x %d\n",obj, obj->flags, RUNTIME_STATE(in)->callDestroy);*/ /* we don't call destroy, if we're in the exit handler during destruction of Object and Class */ if (!RUNTIME_STATE(in)->callDestroy) { obj->flags |= XOTCL_DESTROY_CALLED; /* return TCL_ERROR so that clients know we haven't deleted the associated command yet */ return TCL_ERROR; } /*fprintf(stderr, "+++ calldestroy flags=%d\n",flags);*/ if (obj->flags & XOTCL_DESTROY_CALLED) return TCL_OK; #if !defined(NDEBUG) {char *cmdName = ObjStr(obj->cmdName); assert(cmdName != NULL); /*fprintf(stderr,"findCommand %s -> %p obj->id %p\n",cmdName, Tcl_FindCommand(in, cmdName, NULL, 0),obj->id);*/ /*assert(Tcl_FindCommand(in, cmdName, NULL, 0) != NULL);*/ /*fprintf(stderr,"callDestroyMethod: %p command to be destroyed '%s' does not exist\n", obj, cmdName);*/ } #endif #ifdef OBJDELETION_TRACE fprintf(stderr, " command found\n"); PRINTOBJ("callDestroy", obj); #endif result = callMethod(cd, in, XOTclGlobalObjects[XOTE_DESTROY], 2, 0, flags); if (result != TCL_OK) { static char cmd[] = "puts stderr \"[self]: Error in instproc destroy\n\ $::errorCode $::errorInfo\""; Tcl_EvalEx(in, cmd, -1, 0); if (++RUNTIME_STATE(in)->errorCount > 20) panic("too many destroy errors occured. Endless loop?", NULL); } else { if (RUNTIME_STATE(in)->errorCount > 0) RUNTIME_STATE(in)->errorCount--; } #ifdef OBJDELETION_TRACE fprintf(stderr, "callDestroyMethod for %p exit\n", obj); #endif return result; } /* * conditional memory allocations of optional storage */ extern XOTclObjectOpt * XOTclRequireObjectOpt(XOTclObject *obj) { if (!obj->opt) { obj->opt = NEW(XOTclObjectOpt); memset(obj->opt, 0, sizeof(XOTclObjectOpt)); } return obj->opt; } extern XOTclClassOpt* XOTclRequireClassOpt(XOTclClass *cl) { assert(cl); if (!cl->opt) { cl->opt = NEW(XOTclClassOpt); memset(cl->opt, 0, sizeof(XOTclClassOpt)); } return cl->opt; } static Tcl_Namespace* NSGetFreshNamespace(Tcl_Interp *in, ClientData cd, char *name); static void makeObjNamespace(Tcl_Interp *in, XOTclObject *obj) { #ifdef NAMESPACE_TRACE fprintf(stderr, "+++ Make Namespace for %s\n", ObjStr(obj->cmdName)); #endif if (!obj->nsPtr) { Tcl_Namespace* nsPtr; char *cmdName = ObjStr(obj->cmdName); obj->nsPtr = NSGetFreshNamespace(in, (ClientData)obj, cmdName); if (!obj->nsPtr) panic("makeObjNamespace: Unable to make namespace",0); nsPtr = obj->nsPtr; /* * Copy all obj variables to the newly created namespace */ if (obj->varTable) { Tcl_HashSearch search; Tcl_HashEntry *hPtr; TclVarHashTable *varTable = Tcl_Namespace_varTable(nsPtr); Tcl_HashTable *varHashTable = VarHashTable(varTable); Tcl_HashTable *objHashTable = VarHashTable(obj->varTable); *varHashTable = *objHashTable; /* copy the table */ if (objHashTable->buckets == objHashTable->staticBuckets) { varHashTable->buckets = varHashTable->staticBuckets; } for (hPtr = Tcl_FirstHashEntry(varHashTable, &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { #if defined(PRE85) Var *varPtr; # if FORWARD_COMPATIBLE if (!forwardCompatibleMode) { varPtr = (Var *) Tcl_GetHashValue(hPtr); varPtr->nsPtr = (Namespace *)nsPtr; } # else varPtr = (Var *) Tcl_GetHashValue(hPtr); varPtr->nsPtr = (Namespace *)nsPtr; # endif #endif hPtr->tablePtr = varHashTable; } ckfree((char *) obj->varTable); obj->varTable = 0; } } } /* typedef int (Tcl_ResolveVarProc) _ANSI_ARGS_(( * Tcl_Interp* in, CONST char * name, Tcl_Namespace *context, * int flags, Tcl_Var *rPtr)); */ int varResolver(Tcl_Interp *in, CONST char *name, Tcl_Namespace *ns, int flags, Tcl_Var *varPtr) { *varPtr = (Tcl_Var)LookupVarFromTable(Tcl_Namespace_varTable(ns), name,NULL); /*fprintf(stderr,"lookup '%s' successful %d\n",name, *varPtr != NULL);*/ return *varPtr ? TCL_OK : TCL_ERROR; } static void requireObjNamespace(Tcl_Interp *in, XOTclObject *obj) { if (!obj->nsPtr) makeObjNamespace(in,obj); /* Tcl_SetNamespaceResolvers(obj->nsPtr, (Tcl_ResolveCmdProc*)NULL, varResolver, (Tcl_ResolveCompiledVarProc*)NULL); */ } extern void XOTclRequireObjNamespace(Tcl_Interp *in, XOTcl_Object *obj) { requireObjNamespace(in,(XOTclObject*) obj); } /* * Namespace related commands */ static int NSDeleteCmd(Tcl_Interp *in, Tcl_Namespace* ns, char *name) { /* a simple deletion would delete a global command with the same name, if the command is not existing, so we use the CmdToken */ Tcl_Command token; assert(ns); if ((token = FindMethod(name, ns))) { return Tcl_DeleteCommandFromToken(in, token); } return -1; } static void CallStackDestroyObject(Tcl_Interp *in, XOTclObject *obj); static void PrimitiveCDestroy(ClientData cd); static void PrimitiveODestroy(ClientData cd); static void NSDeleteChildren(Tcl_Interp *in, Tcl_Namespace* ns) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; #ifdef OBJDELETION_TRACE fprintf(stderr, "NSDeleteChildren %s\n", ns->fullName); #endif Tcl_ForgetImport(in, ns, "*"); /* don't destroy namespace imported objects */ for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { Tcl_Command cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); if (!Tcl_Command_cmdEpoch(cmd)) { char *oname = Tcl_GetHashKey(cmdTable, hPtr); Tcl_DString name; XOTclObject *obj; /* fprintf(stderr, " ... child %s\n", oname); */ ALLOC_NAME_NS(&name, ns->fullName, oname); obj = XOTclpGetObject(in, Tcl_DStringValue(&name)); if (obj) { /* fprintf(stderr, " ... obj= %s\n", ObjStr(obj->cmdName));*/ /* in the exit handler physical destroy --> directly call destroy */ if (RUNTIME_STATE(in)->exitHandlerDestroyRound == XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY) { if (XOTclObjectIsClass(obj)) PrimitiveCDestroy((ClientData) obj); else PrimitiveODestroy((ClientData) obj); } else { if (obj->teardown != 0 && obj->id && !(obj->flags & XOTCL_DESTROY_CALLED)) { if (callDestroyMethod((ClientData)obj, in, obj, 0) != TCL_OK) { /* destroy method failed, but we have to remove the command anyway. */ obj->flags |= XOTCL_DESTROY_CALLED; if (obj->teardown) { CallStackDestroyObject(in, obj); } /*(void*) Tcl_DeleteCommandFromToken(in, oid);*/ } } } } DSTRING_FREE(&name); } } } /* * ensure that a variable exists on object varTable or nsPtr->varTable, * if necessary create it. Return Var * if successful, otherwise 0 */ static Var * NSRequireVariableOnObj(Tcl_Interp *in, XOTclObject *obj, char *name, int flgs) { XOTcl_FrameDecls; Var *varPtr, *arrayPtr; XOTcl_PushFrame(in, obj); varPtr = TclLookupVar(in, name, 0, flgs, "obj vwait", /*createPart1*/ 1, /*createPart2*/ 0, &arrayPtr); XOTcl_PopFrame(in, obj); return varPtr; } /* delete a namespace recursively, but check whether the namespace is an object or not */ static void NSDeleteNamespace(Tcl_Interp *in, Tcl_Namespace* ns) { Tcl_HashTable *childTable = Tcl_Namespace_childTable(ns); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; NSDeleteChildren(in, ns); for (hPtr = Tcl_FirstHashEntry(childTable, &hSrch); hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { Tcl_Namespace *child = ((Tcl_Namespace*)Tcl_GetHashValue(hPtr)); NSDeleteNamespace(in, child); } /* fprintf(stderr, "NSDeleteNamespace deleting %s\n", ns->fullName); */ MEM_COUNT_FREE("TclNamespace",ns); Tcl_DeleteNamespace(ns); } static int XOTcl_DeleteCommandFromToken(Tcl_Interp *in, Tcl_Command cmd) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc = cs->top; for (; csc > cs->content; csc--) { if (csc->cmdPtr == cmd) { csc->cmdPtr = NULL; } } return Tcl_DeleteCommandFromToken(in, cmd); } /* * delete all vars & procs in a namespace */ static void NSCleanupNamespace(Tcl_Interp *in, Tcl_Namespace* ns) { TclVarHashTable *varTable = Tcl_Namespace_varTable(ns); Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; Tcl_Command cmd; /* * Delete all variables and initialize var table again * (deleteVars frees the vartable) */ TclDeleteVars((Interp *)in, varTable); InitVarHashTable(varTable, (Namespace *)ns); /* * Delete all user-defined procs in the namespace */ for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { cmd = (Tcl_Command) Tcl_GetHashValue(hPtr); /* objects should not be deleted here to preseve children deletion order*/ if (!XOTclGetObjectFromCmdPtr(cmd)) { /*fprintf(stderr,"NSCleanupNamespace deleting %s %p\n", Tcl_Command_nsPtr(cmd)->fullName, cmd);*/ XOTcl_DeleteCommandFromToken(in, cmd); } } } static void NSNamespaceDeleteProc(ClientData clientData) { /* dummy for ns identification by pointer comparison */ XOTclObject *obj = (XOTclObject*) clientData; /*fprintf(stderr,"namespacedeleteproc obj=%p\n",clientData);*/ if (obj) { obj->flags |= XOTCL_NS_DESTROYED; obj->nsPtr = NULL; } } void XOTcl_DeleteNamespace(Tcl_Interp *in, Tcl_Namespace *nsPtr) { int activationCount = 0; Tcl_CallFrame *f = (Tcl_CallFrame *)Tcl_Interp_framePtr(in); /* fprintf(stderr, " ... correcting ActivationCount for %s was %d ", nsPtr->fullName, nsp->activationCount); */ while (f) { if (f->nsPtr == nsPtr) activationCount++; f = Tcl_CallFrame_callerPtr(f); } Tcl_Namespace_activationCount(nsPtr) = activationCount; /* fprintf(stderr, "to %d. \n", nsp->activationCount); */ MEM_COUNT_FREE("TclNamespace",nsPtr); if (Tcl_Namespace_deleteProc(nsPtr) != NULL) { /*fprintf(stderr,"calling deteteNamespace\n");*/ Tcl_DeleteNamespace(nsPtr); } } static Tcl_Namespace* NSGetFreshNamespace(Tcl_Interp *in, ClientData cd, char *name) { Tcl_Namespace *ns = Tcl_FindNamespace(in, name, NULL, 0); if (ns) { if (ns->deleteProc != NULL || ns->clientData != NULL) { panic("Namespace '%s' exists already with delProc %p and clientData %p; Can only convert a plain Tcl namespace into an XOTcl namespace", name, ns->deleteProc, ns->clientData); } ns->clientData = cd; ns->deleteProc = (Tcl_NamespaceDeleteProc*) NSNamespaceDeleteProc; } else { ns = Tcl_CreateNamespace(in, name, cd, (Tcl_NamespaceDeleteProc*) NSNamespaceDeleteProc); } MEM_COUNT_ALLOC("TclNamespace",ns); return ns; } /* * check colons for illegal object/class names */ XOTCLINLINE static int NSCheckColons(char *name, unsigned l) { register char *n = name; if (*n == '\0') return 0; /* empty name */ if (l==0) l=strlen(name); if (*(n+l-1) == ':') return 0; /* name ends with : */ if (*n == ':' && *(n+1) != ':') return 0; /* name begins with single : */ for (; *n != '\0'; n++) { if (*n == ':' && *(n+1) == ':' && *(n+2) == ':') return 0; /* more than 2 colons in series in a name */ } return 1; } /* * check for parent namespace existance (used before commands are created) */ XOTCLINLINE static int NSCheckForParent(Tcl_Interp *in, char *name, unsigned l) { register char *n = name+l; int result = 1; /*search for last '::'*/ while ((*n != ':' || *(n-1) != ':') && n-1 > name) {n--; } if (*n == ':' && n > name && *(n-1) == ':') {n--;} if ((n-name)>0) { Tcl_DString parentNSName, *dsp = &parentNSName; char *parentName; DSTRING_INIT(dsp); Tcl_DStringAppend(dsp, name, (n-name)); parentName = Tcl_DStringValue(dsp); if (Tcl_FindNamespace(in, parentName, (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY) == 0) { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(in, parentName); if (parentObj) { /* this is for classes */ requireObjNamespace(in, parentObj); } else { /* call unknown and try again */ Tcl_Obj *ov[3]; int rc; ov[0] = RUNTIME_STATE(in)->theClass->object.cmdName; ov[1] = XOTclGlobalObjects[XOTE___UNKNOWN]; ov[2] = Tcl_NewStringObj(parentName,-1); INCR_REF_COUNT(ov[2]); /*fprintf(stderr,"+++ parent... calling __unknown for %s\n", ObjStr(ov[2]));*/ rc = Tcl_EvalObjv(in, 3, ov, 0); if (rc == TCL_OK) { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(in, parentName); if (parentObj) { requireObjNamespace(in, parentObj); } result = (Tcl_FindNamespace(in, parentName, (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY) != 0); } else { result = 0; } DECR_REF_COUNT(ov[2]); } } else { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(in, parentName); if (parentObj) { requireObjNamespace(in, parentObj); } } DSTRING_FREE(dsp); } return result; } /* * Find the "real" command belonging eg. to an XOTcl class or object. * Do not return cmds produced by Tcl_Import, but the "real" cmd * to which they point. */ XOTCLINLINE static Tcl_Command NSFindCommand(Tcl_Interp *in, char *name, Tcl_Namespace *ns) { Tcl_Command cmd; if ((cmd = Tcl_FindCommand(in, name, ns, 0))) { Tcl_Command importedCmd; if ((importedCmd = TclGetOriginalCommand(cmd))) cmd = importedCmd; } return cmd; } /* * C interface routines for manipulating objects and classes */ extern XOTcl_Object* XOTclGetObject(Tcl_Interp *in, char *name) { return (XOTcl_Object*) XOTclpGetObject(in, name); } /* * Find an object using a char *name */ static XOTclObject* XOTclpGetObject(Tcl_Interp *in, char *name) { register Tcl_Command cmd; assert(name); cmd = NSFindCommand(in, name, NULL); /*if (cmd) { fprintf(stderr,"+++ XOTclGetObject from %s -> objProc=%p, dispatch=%p\n", name, Tcl_Command_objProc(cmd), XOTclObjDispatch); }*/ if (cmd && Tcl_Command_objProc(cmd) == XOTclObjDispatch) { return (XOTclObject*)Tcl_Command_objClientData(cmd); } return 0; } /* * Find a class using a char *name */ extern XOTcl_Class* XOTclGetClass(Tcl_Interp *in, char *name) { return (XOTcl_Class*)XOTclpGetClass(in, name); } static XOTclClass* XOTclpGetClass(Tcl_Interp *in, char *name) { XOTclObject *obj = XOTclpGetObject(in, name); return (obj && XOTclObjectIsClass(obj)) ? (XOTclClass*)obj : NULL; } void XOTclAddPMethod(Tcl_Interp *in, XOTcl_Object *obji, char *nm, Tcl_ObjCmdProc* proc, ClientData cd, Tcl_CmdDeleteProc* dp) { XOTclObject *obj = (XOTclObject*) obji; Tcl_DString newCmd, *cptr = &newCmd; requireObjNamespace(in, obj); ALLOC_NAME_NS(cptr, obj->nsPtr->fullName, nm); Tcl_CreateObjCommand(in, Tcl_DStringValue(cptr), proc, cd, dp); DSTRING_FREE(cptr); } void XOTclAddIMethod(Tcl_Interp *in, XOTcl_Class *cli, char *nm, Tcl_ObjCmdProc* proc, ClientData cd, Tcl_CmdDeleteProc* dp) { XOTclClass *cl = (XOTclClass*) cli; Tcl_DString newCmd, *cptr = &newCmd; ALLOC_NAME_NS(cptr, cl->nsPtr->fullName, nm); Tcl_CreateObjCommand(in, Tcl_DStringValue(cptr), proc, cd, dp); DSTRING_FREE(cptr); } /* * Generic Tcl_Obj List */ static void TclObjListFreeList(XOTclTclObjList* list) { XOTclTclObjList* del; while (list) { del = list; list = list->next; DECR_REF_COUNT(del->content); FREE(XOTclTclObjList, del); } } static Tcl_Obj* TclObjListNewElement(XOTclTclObjList **list, Tcl_Obj *ov) { XOTclTclObjList* elt = NEW(XOTclTclObjList); INCR_REF_COUNT(ov); elt->content = ov; elt->next = *list; *list = elt; return ov; } /* * Autonaming */ static Tcl_Obj* AutonameIncr(Tcl_Interp *in, Tcl_Obj *name, XOTclObject *obj, int instanceOpt, int resetOpt) { int valueLength, mustCopy = 1, format = 0; char *valueString, *c; Tcl_Obj *valueObject, *result = NULL, *savedResult = NULL; #ifdef PRE83 int flgs = 0; #else int flgs = TCL_LEAVE_ERR_MSG; #endif XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); if (obj->nsPtr) flgs |= TCL_NAMESPACE_ONLY; valueObject = Tcl_ObjGetVar2(in, XOTclGlobalObjects[XOTE_AUTONAMES],name, flgs); if (valueObject != NULL ) { long autoname_counter; /* should probably do an overflow check here */ Tcl_GetLongFromObj(in, valueObject,&autoname_counter); autoname_counter++; if (Tcl_IsShared(valueObject)) { valueObject = Tcl_DuplicateObj(valueObject); } Tcl_SetLongObj(valueObject,autoname_counter); } Tcl_ObjSetVar2(in, XOTclGlobalObjects[XOTE_AUTONAMES], name, valueObject, flgs); if (resetOpt) { if (valueObject != NULL) { /* we have an entry */ Tcl_UnsetVar2(in, XOTclGlobalStrings[XOTE_AUTONAMES], ObjStr(name), flgs); } result = XOTclGlobalObjects[XOTE_EMPTY]; INCR_REF_COUNT(result); } else { if (valueObject == NULL) { valueObject = Tcl_ObjSetVar2(in, XOTclGlobalObjects[XOTE_AUTONAMES], name, XOTclGlobalObjects[XOTE_ONE], flgs); } if (instanceOpt) { char buffer[1], firstChar, *nextChars; nextChars = ObjStr(name); firstChar = *(nextChars ++); if (isupper((int)firstChar)) { buffer[0] = tolower((int)firstChar); result = Tcl_NewStringObj(buffer,1); INCR_REF_COUNT(result); Tcl_AppendToObj(result, nextChars, -1); mustCopy = 0; } } if (mustCopy) { result = Tcl_DuplicateObj(name); INCR_REF_COUNT(result); /* fprintf(stderr,"*** copy %p %s = %p\n", name,ObjStr(name),result); */ } /* if we find a % in the autoname -> We use Tcl_FormatObjCmd to let the autoname string be formated, like Tcl "format" command, with the value. E.g.: autoname a%06d --> a000000, a000001, a000002, ... */ for (c = ObjStr(result); *c != '\0'; c++) { if (*c == '%') { if (*(c+1) != '%') { format = 1; break; } else { /* when we find a %% we format and then append autoname, e.g. autoname a%% --> a%1, a%2, ... */ c++; } } } if (format) { ALLOC_ON_STACK(Tcl_Obj*,3, ov); savedResult = Tcl_GetObjResult(in); INCR_REF_COUNT(savedResult); ov[0] = XOTclGlobalObjects[XOTE_FORMAT]; ov[1] = result; ov[2] = valueObject; if (Tcl_EvalObjv(in, 3, ov, 0) != TCL_OK) { XOTcl_PopFrame(in, obj); DECR_REF_COUNT(savedResult); FREE_ON_STACK(ov); return 0; } DECR_REF_COUNT(result); result = Tcl_DuplicateObj(Tcl_GetObjResult(in)); INCR_REF_COUNT(result); Tcl_SetObjResult(in, savedResult); DECR_REF_COUNT(savedResult); FREE_ON_STACK(ov); } else { valueString = Tcl_GetStringFromObj(valueObject,&valueLength); Tcl_AppendToObj(result, valueString, valueLength); /*fprintf(stderr,"+++ append to obj done\n");*/ } } XOTcl_PopFrame(in, obj); assert((resetOpt && result->refCount>=1) || (result->refCount == 1)); return result; } /* * XOTcl CallStack */ XOTclCallStackContent * XOTclCallStackFindLastInvocation(Tcl_Interp *in, int offset) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; register XOTclCallStackContent *csc = cs->top; int topLevel = csc->currentFramePtr ? Tcl_CallFrame_level(csc->currentFramePtr) :0; int deeper = offset; /* skip through toplevel inactive filters, do this offset times */ for (csc=cs->top; csc > cs->content; csc--) { if ((csc->callType & XOTCL_CSC_CALL_IS_NEXT) || (csc->frameType & XOTCL_CSC_TYPE_INACTIVE)) continue; if (offset) offset--; else { if (!deeper) { return csc; } if (csc->currentFramePtr && Tcl_CallFrame_level(csc->currentFramePtr) < topLevel) { return csc; } } } /* for some reasons, we could not find invocation (topLevel, destroy) */ return NULL; } static XOTclCallStackContent * CallStackFindActiveFilter(Tcl_Interp *in) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; register XOTclCallStackContent *csc; /* search for first active frame and set tcl frame pointers */ for (csc=cs->top; csc > cs->content; csc --) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) return csc; } /* for some reasons, we could not find invocation (topLevel, destroy) */ return NULL; } XOTclCallStackContent * XOTclCallStackFindActiveFrame(Tcl_Interp *in, int offset) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; register XOTclCallStackContent *csc; /* search for first active frame and set tcl frame pointers */ for (csc=cs->top-offset; csc > cs->content; csc --) { if (!(csc->frameType & XOTCL_CSC_TYPE_INACTIVE)) { /* we found the highest active frame */ return csc; } } /* we could not find an active frame; called from toplevel? */ return NULL; } static void CallStackUseActiveFrames(Tcl_Interp *in, callFrameContext *ctx) { XOTclCallStackContent *active, *top = RUNTIME_STATE(in)->cs.top; Tcl_CallFrame *inFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(in); active = XOTclCallStackFindActiveFrame(in, 0); /*fprintf(stderr,"active %p, varFrame(in) %p, topVarFrame %p, active->curr %p\n", active, inFramePtr, top->currentFramePtr, active? active->currentFramePtr : NULL);*/ if (active == top || inFramePtr == NULL || Tcl_CallFrame_level(inFramePtr) == 0) { /* top frame is a active frame, or we could not find a calling frame, call frame pointers are fine */ ctx->framesSaved = 0; } else if (active == NULL) { Tcl_CallFrame *cf = inFramePtr; /*fprintf(stderr,"active == NULL\n"); */ /* find a proc frame, which is not equal the top level cmd */ /* XOTclStackDump(in);*/ for (; cf && Tcl_CallFrame_level(cf); cf = Tcl_CallFrame_callerPtr(cf)) { if (Tcl_CallFrame_isProcCallFrame(cf) && cf != top->currentFramePtr) break; } ctx->varFramePtr = inFramePtr; Tcl_Interp_varFramePtr(in) = (CallFrame *) cf; ctx->framesSaved = 1; } else { Tcl_CallFrame *framePtr; /*fprintf(stderr,"active == deeper active=%p frame %p, active+1 %p frame %p\n", active, active->currentFramePtr, active+1, (active+1)->currentFramePtr);*/ /* search returned a deeper pointer, use stored tcl frame pointers; If Tcl is mixed with XOTcl it is needed to use instead of active->currentFrame the callerPtr of the last inactive frame unless the last inactive is NULL */ if ((framePtr = (active+1)->currentFramePtr)) framePtr = Tcl_CallFrame_callerPtr(framePtr); else framePtr = active->currentFramePtr; ctx->varFramePtr = inFramePtr; Tcl_Interp_varFramePtr(in) = (CallFrame *) framePtr; ctx->framesSaved = 1; } } static void CallStackRestoreSavedFrames(Tcl_Interp *in, callFrameContext *ctx) { if (ctx->framesSaved) { Tcl_Interp_varFramePtr(in) = (CallFrame *)ctx->varFramePtr; /*RUNTIME_STATE(in)->varFramePtr = ctx->varFramePtr;*/ } } XOTCLINLINE static int CallStackPush(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd, int objc, Tcl_Obj *CONST objv[], int frameType) { XOTclCallStack *cs; register XOTclCallStackContent *csc; cs = &RUNTIME_STATE(in)->cs; if (cs->top >= &cs->content[MAX_NESTING_DEPTH-1]) { Tcl_SetResult(in, "too many nested calls to Tcl_EvalObj (infinite loop?)", TCL_STATIC); return TCL_ERROR; } /*fprintf(stderr, "CallStackPush sets self\n");*/ csc = ++cs->top; csc->self = obj; csc->cl = cl; csc->cmdPtr = cmd; csc->destroyedCmd = 0; csc->frameType = frameType; csc->callType = 0; csc->currentFramePtr = NULL; /* this will be set by InitProcNSCmd */ if (frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) csc->filterStackEntry = obj->filterStack; else csc->filterStackEntry = 0; /*fprintf(stderr, "PUSH obj %s, self=%p cmd=%p (%s) id=%p (%s) frame=%p\n", ObjStr(obj->cmdName), obj, cmd, (char *) Tcl_GetCommandName(in, cmd), obj->id, Tcl_GetCommandName(in, obj->id), csc);*/ MEM_COUNT_ALLOC("CallStack",NULL); return TCL_OK; } XOTCLINLINE static void CallStackDoDestroy(Tcl_Interp *in, XOTclObject *obj) { Tcl_Command oid; PRINTOBJ("CallStackDoDestroy", obj); oid = obj->id; obj->id = 0; if (obj->teardown && oid) { Tcl_DeleteCommandFromToken(in, oid); } } static void CallStackDestroyObject(Tcl_Interp *in, XOTclObject *obj) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc; int countSelfs = 0; Tcl_Command oid = obj->id; for (csc = &cs->content[1]; csc <= cs->top; csc++) { if (csc->self == obj) { csc->destroyedCmd = oid; csc->callType |= XOTCL_CSC_CALL_IS_DESTROY; /*fprintf(stderr,"setting destroy on frame %p for obj %p\n",csc,obj);*/ if (csc->destroyedCmd) { Tcl_Command_refCount(csc->destroyedCmd)++; MEM_COUNT_ALLOC("command refCount",csc->destroyedCmd); } countSelfs++; } } /* if the object is not referenced at the callstack anymore we have to directly destroy it, because CallStackPop won't find the object destroy */ if (countSelfs == 0) { /*fprintf(stderr,"directdestroy %p\n",obj);*/ CallStackDoDestroy(in, obj); } else { /*fprintf(stderr,"selfcount for %p = %d\n",obj,countSelfs);*/ /* to prevail the deletion order call delete children now -> children destructors are called before parent's destructor */ if (obj->teardown && obj->nsPtr) { NSDeleteChildren(in, obj->nsPtr); } } } XOTCLINLINE static int CallStackIsDestroyed(Tcl_Interp *in) { return (RUNTIME_STATE(in)->cs.top->destroyedCmd == NULL) ? 0 : 1; } XOTCLINLINE static void CallStackPop(Tcl_Interp *in) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc; XOTclCallStackContent *h = cs->top; assert(cs->top > cs->content); csc = cs->top; /*fprintf(stderr, "POP frame=%p\n",csc);*/ if (csc->destroyedCmd != 0) { int destroy = 1; TclCleanupCommand((Command *)csc->destroyedCmd); MEM_COUNT_FREE("command refCount", csc->destroyedCmd); /* do not physically destroy, when callstack still contains "self" entries of the object */ while (--h > cs->content) { if (h->self == csc->self) { destroy = 0; break; } } if (destroy) { CallStackDoDestroy(in, csc->self); } } cs->top--; MEM_COUNT_FREE("CallStack",NULL); } XOTCLINLINE static XOTclCallStackContent* CallStackGetTopFrame(Tcl_Interp *in) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; return cs->top; } static XOTclCallStackContent* CallStackGetFrame(Tcl_Interp *in) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; register XOTclCallStackContent *top = cs->top; Tcl_CallFrame *varFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(in); /* fprintf(stderr, "Tcl_Interp_framePtr(in) %p != varFramePtr %p && top->currentFramePtr %p\n", Tcl_Interp_framePtr(in), varFramePtr, top->currentFramePtr);*/ if (Tcl_Interp_framePtr(in) != varFramePtr && top->currentFramePtr) { XOTclCallStackContent *bot = cs->content + 1; /*fprintf(stderr, "uplevel\n");*/ /* we are in a uplevel */ while (varFramePtr != top->currentFramePtr && top>bot) { top--; } } return top; } /* * cmd list handling */ /* * Cmd List Add/Remove ... returns the new element */ static XOTclCmdList* CmdListAdd(XOTclCmdList **cList, Tcl_Command c, XOTclClass *clorobj, int noDuplicates) { XOTclCmdList *l = *cList, *new; /* * check for duplicates, if necessary */ if (noDuplicates) { XOTclCmdList *h = l, **end = NULL; while (h) { if (h->cmdPtr == c) return h; end = &(h->next); h = h->next; } if (end) { /* no duplicates, no need to search below, we are at the end of the list */ cList = end; l = NULL; } } /* * ok, we have no duplicates -> append "new" * to the end of the list */ new = NEW(XOTclCmdList); new->cmdPtr = c; Tcl_Command_refCount(new->cmdPtr)++; MEM_COUNT_ALLOC("command refCount",new->cmdPtr); new->clientData = NULL; new->clorobj = clorobj; new->next = NULL; if (l) { while (l->next) l = l->next; l->next = new; } else *cList = new; return new; } static void CmdListReplaceCmd(XOTclCmdList *replace, Tcl_Command cmd, XOTclClass *clorobj) { Tcl_Command del = replace->cmdPtr; replace->cmdPtr = cmd; replace->clorobj = clorobj; Tcl_Command_refCount(cmd)++; MEM_COUNT_ALLOC("command refCount", cmd); TclCleanupCommand((Command *)del); MEM_COUNT_FREE("command refCount",cmd); } #if 0 /** for debug purposes only */ static void CmdListPrint(Tcl_Interp *in, char *title, XOTclCmdList *cmdList) { if (cmdList) fprintf(stderr,title); while (cmdList) { fprintf(stderr, " CL=%p, cmdPtr=%p %s, clorobj %p, clientData=%p\n", cmdList, cmdList->cmdPtr, in ? Tcl_GetCommandName(in, cmdList->cmdPtr) : "", cmdList->clorobj, cmdList->clientData); cmdList = cmdList->next; } } #endif /* * physically delete an entry 'del' */ static void CmdListDeleteCmdListEntry(XOTclCmdList* del, XOTclFreeCmdListClientData* freeFct) { if (freeFct) (*freeFct)(del); MEM_COUNT_FREE("command refCount",del->cmdPtr); TclCleanupCommand((Command *)del->cmdPtr); FREE(XOTclCmdList, del); } /* * remove a command 'delCL' from a command list, but do not * free it ... returns the removed XOTclCmdList* */ static XOTclCmdList* CmdListRemoveFromList(XOTclCmdList **cmdList, XOTclCmdList* delCL) { register XOTclCmdList* c = *cmdList, *del = 0; if (c == 0) return NULL; if (c == delCL) { *cmdList = c->next; del = c; } else { while (c->next && c->next != delCL) { c = c->next; } if (c->next == delCL) { del = delCL; c->next = delCL->next; } } return del; } /* * remove all command pointers from a list that have a bumped epoch */ static void CmdListRemoveEpoched(XOTclCmdList **cmdList, XOTclFreeCmdListClientData *freeFct) { XOTclCmdList *f = *cmdList, *del; while (f) { if (Tcl_Command_cmdEpoch(f->cmdPtr)) { del = f; f = f->next; del = CmdListRemoveFromList(cmdList, del); CmdListDeleteCmdListEntry(del, freeFct); } else f = f->next; } } /* * delete all cmds with given context class object */ static void CmdListRemoveContextClassFromList(XOTclCmdList **cmdList, XOTclClass *clorobj, XOTclFreeCmdListClientData* freeFct) { XOTclCmdList* c, *del = 0; /* CmdListRemoveEpoched(cmdList, freeFct); */ c = *cmdList; while (c && c->clorobj == clorobj) { del = c; *cmdList = c->next; CmdListDeleteCmdListEntry(del, freeFct); c = *cmdList; } while (c) { if (c->clorobj == clorobj) { del = c; c = *cmdList; while (c->next && c->next != del) c = c->next; if (c->next == del) c->next = del->next; CmdListDeleteCmdListEntry(del, freeFct); } c = c->next; } } /* * free the memory of a whole 'cmdList' */ static void CmdListRemoveList(XOTclCmdList **cmdList, XOTclFreeCmdListClientData* freeFct) { XOTclCmdList *del; while (*cmdList) { del = *cmdList; *cmdList = (*cmdList)->next; CmdListDeleteCmdListEntry(del, freeFct); } } /* * simple list search proc to search a list of cmds * for a command ptr */ static XOTclCmdList* CmdListFindCmdInList(Tcl_Command cmd, XOTclCmdList* l) { register XOTclCmdList* h = l; while (h != 0) { if (h->cmdPtr == cmd) return h; h = h->next; } return 0; } /* * simple list search proc to search a list of cmds * for a simple Name */ static XOTclCmdList* CmdListFindNameInList(Tcl_Interp *in, char *name, XOTclCmdList* l) { register XOTclCmdList* h = l; while (h != 0) { CONST84 char *cmdName = Tcl_GetCommandName(in, h->cmdPtr); if (cmdName[0] == name[0] && !strcmp(cmdName, name)) return h; h = h->next; } return 0; } /* * Assertions */ static XOTclTclObjList* AssertionNewList(Tcl_Interp *in, Tcl_Obj *aObj) { Tcl_Obj **ov; int oc; XOTclTclObjList *last = NULL; if (Tcl_ListObjGetElements(in, aObj, &oc, &ov) == TCL_OK) { if (oc > 0) { int i; for (i=oc-1; i>=0; i--) { TclObjListNewElement(&last, ov[i]); } } } return last; } static Tcl_Obj* AssertionList(Tcl_Interp *in, XOTclTclObjList* alist) { Tcl_Obj *newAssStr = Tcl_NewStringObj("",0); for (; alist!=NULL; alist = alist->next) { Tcl_AppendStringsToObj(newAssStr, "{", ObjStr(alist->content), "}", (char *) NULL); if (alist->next != NULL) Tcl_AppendStringsToObj(newAssStr, " ", (char *) NULL); } return newAssStr; } /* append a string of pre and post assertions to a proc or instproc body */ static void AssertionAppendPrePost(Tcl_Interp *in, Tcl_DString *dsPtr, XOTclProcAssertion *procs) { if (procs) { Tcl_Obj *preAss = AssertionList(in, procs->pre); Tcl_Obj *postAss = AssertionList(in, procs->post); INCR_REF_COUNT(preAss); INCR_REF_COUNT(postAss); Tcl_DStringAppendElement(dsPtr, ObjStr(preAss)); Tcl_DStringAppendElement(dsPtr, ObjStr(postAss)); DECR_REF_COUNT(preAss); DECR_REF_COUNT(postAss); } } static int AssertionListCheckOption(Tcl_Interp *in, XOTclObject *obj) { XOTclObjectOpt *opt = obj->opt; if (!opt) return TCL_OK; if (opt->checkoptions & CHECK_OBJINVAR) Tcl_AppendElement(in, "invar"); if (opt->checkoptions & CHECK_CLINVAR) Tcl_AppendElement(in, "instinvar"); if (opt->checkoptions & CHECK_PRE) Tcl_AppendElement(in, "pre"); if (opt->checkoptions & CHECK_POST) Tcl_AppendElement(in, "post"); return TCL_OK; } static XOTclProcAssertion* AssertionFindProcs(XOTclAssertionStore* aStore, char *name) { Tcl_HashEntry *hPtr; if (aStore == NULL) return NULL; hPtr = Tcl_FindHashEntry(&aStore->procs, name); if (hPtr == NULL) return NULL; return (XOTclProcAssertion*) Tcl_GetHashValue(hPtr); } static void AssertionRemoveProc(XOTclAssertionStore* aStore, char *name) { Tcl_HashEntry *hPtr; if (aStore) { hPtr = Tcl_FindHashEntry(&aStore->procs, name); if (hPtr) { XOTclProcAssertion* procAss = (XOTclProcAssertion*) Tcl_GetHashValue(hPtr); TclObjListFreeList(procAss->pre); TclObjListFreeList(procAss->post); FREE(XOTclProcAssertion, procAss); Tcl_DeleteHashEntry(hPtr); } } } static void AssertionAddProc(Tcl_Interp *in, char *name, XOTclAssertionStore* aStore, Tcl_Obj *pre, Tcl_Obj *post) { int nw = 0; Tcl_HashEntry* hPtr = NULL; XOTclProcAssertion *procs = NEW(XOTclProcAssertion); AssertionRemoveProc(aStore, name); procs->pre = AssertionNewList(in, pre); procs->post = AssertionNewList(in, post); hPtr = Tcl_CreateHashEntry(&aStore->procs, name, &nw); if (nw) Tcl_SetHashValue(hPtr, (ClientData)procs); } static XOTclAssertionStore* AssertionCreateStore() { XOTclAssertionStore* aStore = NEW(XOTclAssertionStore); aStore->invariants = NULL; Tcl_InitHashTable(&aStore->procs, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable",&aStore->procs); return aStore; } static void AssertionRemoveStore(XOTclAssertionStore* aStore) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; if (aStore) { hPtr = Tcl_FirstHashEntry(&aStore->procs, &hSrch); while (hPtr) { /* * AssertionRemoveProc calls Tcl_DeleteHashEntry(hPtr), thus * we get the FirstHashEntry afterwards again to proceed */ AssertionRemoveProc(aStore, Tcl_GetHashKey(&aStore->procs, hPtr)); hPtr = Tcl_FirstHashEntry(&aStore->procs, &hSrch); } Tcl_DeleteHashTable(&aStore->procs); MEM_COUNT_FREE("Tcl_InitHashTable",&aStore->procs); TclObjListFreeList(aStore->invariants); FREE(XOTclAssertionStore, aStore); } } /* * check a given condition in the current callframe's scope * it's the responsiblity of the caller to push the intended callframe */ static int checkConditionInScope(Tcl_Interp *in, Tcl_Obj *condition) { int result, success; Tcl_Obj *ov[2]; ov [1] = condition; INCR_REF_COUNT(condition); /* fprintf(stderr, "----- evaluating condition '%s'\n", ObjStr(condition)); */ result = XOTcl_ExprObjCmd(NULL, in, 2, ov); DECR_REF_COUNT(condition); /* fprintf(stderr, "----- running condition '%s', result=%d '%s'\n", ObjStr(condition), result, ObjStr(Tcl_GetObjResult(in))); */ if (result == TCL_OK) { result = Tcl_GetIntFromObj(in,Tcl_GetObjResult(in),&success); /* fprintf(stderr, " success=%d\n", success); */ if (result == TCL_OK && success == 0) result = XOTCL_CHECK_FAILED; } return result; } static int AssertionCheckList(Tcl_Interp *in, XOTclObject *obj, XOTclTclObjList* alist, char *methodName) { XOTclTclObjList* checkFailed = NULL; Tcl_Obj *savedObjResult = Tcl_GetObjResult(in); int savedCheckoptions, acResult = TCL_OK; /* * no obj->opt -> checkoption == CHECK_NONE */ if (!obj->opt) return TCL_OK; /* we do not check assertion modifying methods, otherwise we can not react in catch on a runtime assertion check failure */ if (isCheckString(methodName) || isInfoString(methodName) || isInvarString(methodName) || isInstinvarString(methodName) || isProcString(methodName) || isInstprocString(methodName)) return TCL_OK; INCR_REF_COUNT(savedObjResult); Tcl_ResetResult(in); while (alist != NULL) { /* Eval instead of IfObjCmd => the substitutions in the conditions will be done by Tcl */ char *assStr = ObjStr(alist->content), *c = assStr; int comment = 0; while (c != 0 && *c != '\0') { if (*c == '#') { comment = 1; break; } c++; } if (!comment) { XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); CallStackPush(in, obj, 0, 0, 0, 0, XOTCL_CSC_TYPE_PLAIN); /* don't check assertion during assertion check */ savedCheckoptions = obj->opt->checkoptions; obj->opt->checkoptions = CHECK_NONE; /*fprintf(stderr, "Checking Assertion %s ", assStr);*/ /* * now check the assertion in the pushed callframe's scope */ acResult = checkConditionInScope(in, alist->content); if (acResult != TCL_OK) checkFailed = alist; obj->opt->checkoptions = savedCheckoptions; /*fprintf(stderr, "...%s\n", checkFailed ? "failed" : "ok");*/ CallStackPop(in); XOTcl_PopFrame(in,obj); } if (checkFailed) break; alist = alist->next; } if (checkFailed != NULL) { DECR_REF_COUNT(savedObjResult); if (acResult == TCL_ERROR) { Tcl_Obj *sr = Tcl_GetObjResult(in); INCR_REF_COUNT(sr); XOTclVarErrMsg(in, "Error in Assertion: {", ObjStr(checkFailed->content), "} in proc '", GetSelfProc(in), "'\n\n", ObjStr(sr), (char *) NULL); DECR_REF_COUNT(sr); return TCL_ERROR; } return XOTclVarErrMsg(in, "Assertion failed check: {", ObjStr(checkFailed->content), "} in proc '", GetSelfProc(in), "'", (char *) NULL); } Tcl_SetObjResult(in, savedObjResult); DECR_REF_COUNT(savedObjResult); return TCL_OK; } static int AssertionCheckInvars(Tcl_Interp *in, XOTclObject *obj, char *method, CheckOptions checkoptions) { int result = TCL_OK; if (checkoptions & CHECK_OBJINVAR && obj->opt->assertions) { result = AssertionCheckList(in, obj, obj->opt->assertions->invariants, method); } if (result != TCL_ERROR && checkoptions & CHECK_CLINVAR) { XOTclClasses* clPtr; clPtr = ComputeOrder(obj->cl, obj->cl->order, Super); while (clPtr != 0 && result != TCL_ERROR) { XOTclAssertionStore* aStore = (clPtr->cl->opt) ? clPtr->cl->opt->assertions : 0; if (aStore) { result = AssertionCheckList(in, obj, aStore->invariants, method); } clPtr = clPtr->next; } } return result; } static int AssertionCheck(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl, char *method, int checkOption) { XOTclProcAssertion* procs; int result = TCL_OK; XOTclAssertionStore* aStore; if (cl) aStore = cl->opt ? cl->opt->assertions : 0; else aStore = obj->opt ? obj->opt->assertions : 0; assert(obj->opt); if (checkOption & obj->opt->checkoptions) { procs = AssertionFindProcs(aStore, method); if (procs) { switch (checkOption) { case CHECK_PRE: result = AssertionCheckList(in, obj, procs->pre, method); break; case CHECK_POST: result = AssertionCheckList(in, obj, procs->post, method); break; } } if (result != TCL_ERROR) result = AssertionCheckInvars(in, obj, method, obj->opt->checkoptions); } return result; } /* * Per-Object-Mixins */ /* * push a mixin stack information on this object */ static int MixinStackPush(XOTclObject *obj) { register XOTclMixinStack* h = NEW(XOTclMixinStack); h->currentCmdPtr = 0; h->next = obj->mixinStack; obj->mixinStack = h; return 1; } /* * pop a mixin stack information on this object */ static void MixinStackPop(XOTclObject *obj) { register XOTclMixinStack *h = obj->mixinStack; obj->mixinStack = h->next; FREE(XOTclMixinStack,h); } /* * Appends XOTclClasses* containing the mixin classes and their * superclasses to 'mixinClasses' list from a given mixinList */ static void MixinComputeOrderFullList(Tcl_Interp *in, XOTclCmdList **mixinList, XOTclClasses **mixinClasses, XOTclClasses **checkList, int level) { XOTclCmdList *m; XOTclClasses *pl, **clPtr = mixinClasses; CmdListRemoveEpoched(mixinList, GuardDel); m = *mixinList; while (m) { XOTclClass *mCl = XOTclGetClassFromCmdPtr(m->cmdPtr); if (mCl) { for (pl = ComputeOrder(mCl, mCl->order, Super); pl; pl = pl->next) { /*fprintf(stderr, " %s, ", ObjStr(pl->cl->object.cmdName));*/ if (!(pl->cl == RUNTIME_STATE(in)->theObject)) { XOTclClassOpt* opt = pl->cl->opt; if (opt && opt->instmixins != 0) { /* compute transitively the instmixin classes of this added class */ XOTclClasses *cls; int i, found=0; for (i=0, cls = *checkList; cls; i++,cls = cls->next) { /* fprintf(stderr,"+++ c%d: %s\n",i, ObjStr(cls->cl->object.cmdName));*/ if (pl->cl == cls->cl) { found = 1; break; } } if (!found) { XOTclAddClass(checkList, pl->cl, NULL); /*fprintf(stderr, "+++ transitive %s\n", ObjStr(pl->cl->object.cmdName));*/ MixinComputeOrderFullList(in, &opt->instmixins, mixinClasses, checkList, level+1); } } /* fprintf(stderr,"+++ add to mixinClasses %p path: %s clPtr %p\n", mixinClasses, ObjStr(pl->cl->object.cmdName), clPtr);*/ clPtr = XOTclAddClass(clPtr, pl->cl, m->clientData); } } } m = m->next; } if (level == 0 && *checkList) { XOTclFreeClasses(*checkList); *checkList = NULL; } } static void MixinResetOrder(XOTclObject *obj) { /*fprintf(stderr,"removeList %s \n",ObjStr(obj->cmdName));*/ CmdListRemoveList(&obj->mixinOrder, NULL /*GuardDel*/); obj->mixinOrder = 0; } /* * Computes a linearized order of per-object and per-class mixins. Then * duplicates in the full list and with the class inheritance list of * 'obj' are eliminated. * The precendence rule is that the last occurence makes it into the * final list. */ static void MixinComputeOrder(Tcl_Interp *in, XOTclObject *obj) { XOTclClasses *fullList, *checkList=0, *mixinClasses = 0, *nextCl, *pl, *checker, *guardChecker; if (obj->mixinOrder) MixinResetOrder(obj); /*fprintf(stderr, "Mixin Order:\n First List: ");*/ /* append per-obj mixins */ if (obj->opt) { MixinComputeOrderFullList(in, &obj->opt->mixins, &mixinClasses, &checkList, 0); } /* append per-class mixins */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl = pl->next) { XOTclClassOpt* opt = pl->cl->opt; if (opt && opt->instmixins) { MixinComputeOrderFullList(in, &opt->instmixins, &mixinClasses, &checkList, 0); } } fullList = mixinClasses; /* use no duplicates & no classes of the precedence order on the resulting list */ while (mixinClasses) { checker = nextCl = mixinClasses->next; /* fprintf(stderr,"--- checking %s\n", ObjStr(mixinClasses->cl->object.cmdName));*/ while (checker) { if (checker->cl == mixinClasses->cl) break; checker = checker->next; } /* if checker is set, it is a duplicate and ignored */ if (checker == 0) { /* check obj->cl hierachy */ for (checker = ComputeOrder(obj->cl, obj->cl->order, Super); checker; checker = checker->next) { if (checker->cl == mixinClasses->cl) break; } /* if checker is set, it was found in the class hierarchy and it is ignored */ } if (checker == 0) { /* add the class to the mixinOrder list */ XOTclCmdList* new; /* fprintf(stderr,"--- adding to mixinlist %s\n", ObjStr(mixinClasses->cl->object.cmdName));*/ new = CmdListAdd(&obj->mixinOrder, mixinClasses->cl->object.id,NULL, /*noDuplicates*/ 0); /* in the client data of the order list, we require the first matching guard ... scan the full list for it. */ for (guardChecker = fullList; guardChecker; guardChecker = guardChecker->next) { if (guardChecker->cl == mixinClasses->cl) { new->clientData = guardChecker->clientData; break; } } } mixinClasses = nextCl; } /* ... and free the memory of the full list */ XOTclFreeClasses(fullList); /*CmdListPrint(in,"mixin order\n", obj->mixinOrder);*/ } /* * add a mixin class to 'mixinList' by appending it */ static int MixinAdd(Tcl_Interp *in, XOTclCmdList **mixinList, Tcl_Obj *name) { XOTclClass *mixin; Tcl_Obj *guard = NULL; int ocName; Tcl_Obj **ovName; XOTclCmdList* new; if (Tcl_ListObjGetElements(in, name, &ocName, &ovName) == TCL_OK && ocName > 1) { if (ocName == 3 && !strcmp(ObjStr(ovName[1]), XOTclGlobalStrings[XOTE_GUARD_OPTION])) { name = ovName[0]; guard = ovName[2]; /*fprintf(stderr,"mixinadd name = '%s', guard = '%s'\n", ObjStr(name), ObjStr(guard));*/ } /*else return XOTclVarErrMsg(in, "mixin registration '", ObjStr(name), "' has too many elements.", (char *) NULL);*/ } if (GetXOTclClassFromObj(in, name, &mixin, 1) != TCL_OK) return XOTclErrBadVal(in, "mixin", "a class as mixin", ObjStr(name)); new = CmdListAdd(mixinList, mixin->object.id, NULL, /*noDuplicates*/ 1); if (guard) { GuardAdd(in, new, guard); } else { if (new->clientData) GuardDel(new); } return TCL_OK; } /* * get all instances of a class recursively to an initialized * String key hashtable */ static void getAllInstances(Tcl_HashTable *destTable, XOTclClass *startCl) { Tcl_HashTable *table = &startCl->instances; Tcl_HashSearch search; Tcl_HashEntry *hPtr; for (hPtr = Tcl_FirstHashEntry(table, &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { XOTclObject *inst = (XOTclObject*) Tcl_GetHashKey(table, hPtr); Tcl_HashEntry *hPtrDest; int new; hPtrDest = Tcl_CreateHashEntry(destTable, ObjStr(inst->cmdName), &new); /* fprintf (stderr, " -- %s (%s)\n", ObjStr(inst->cmdName), ObjStr(startCl->object.cmdName)); */ if (new && XOTclObjectIsClass(inst)) { getAllInstances(destTable, (XOTclClass*) inst); } } } /* * if the class hierarchy or class mixins have changed -> * invalidate mixin entries in all dependent instances */ static void MixinInvalidateObjOrders(Tcl_Interp *in, XOTclClass *cl) { XOTclClasses *saved = cl->order, *clPtr; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; Tcl_HashTable objTable, *commandTable = &objTable; XOTclObject *obj; cl->order = 0; for (clPtr = ComputeOrder(cl, cl->order, Sub); clPtr; clPtr = clPtr->next) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : 0; /*fprintf(stderr,"invalidating instances of class %s\n", ObjStr(clPtr->cl->object.cmdName));*/ /* here we should check, whether this class is used as a mixin / instmixin somewhere else and invalidate the objects of these as well -- */ for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject*) Tcl_GetHashKey(&clPtr->cl->instances, hPtr); MixinResetOrder(obj); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; } } XOTclFreeClasses(cl->order); cl->order = saved; #if 1 /* TODO: Uwe, this slows down superclass by a factor of 5! */ /* invalidate the mixins on all instances that have this mixin (cl) at the moment */ Tcl_InitHashTable(commandTable, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable",commandTable); getAllInstances(commandTable, RUNTIME_STATE(in)->theClass); hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); while (hPtr) { char *key = Tcl_GetHashKey(commandTable, hPtr); obj = XOTclpGetObject(in, key); if (obj && !XOTclObjectIsClass(obj) && !(obj->flags & XOTCL_DESTROY_CALLED) && (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID)) { XOTclCmdList *ml; for (ml = obj->mixinOrder; ml; ml = ml->next) { XOTclClass *mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin == cl) { MixinResetOrder(obj); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; break; } } } hPtr = Tcl_NextHashEntry(&hSrch); } MEM_COUNT_FREE("Tcl_InitHashTable",commandTable); Tcl_DeleteHashTable(commandTable); #endif } static int MixinInfo(Tcl_Interp *in, XOTclCmdList* m, char *pattern, int withGuards); /* * the mixin order is either * DEFINED (there are mixins on the instance), * NONE (there are no mixins for the instance), * or INVALID (a class re-strucuturing has occured, thus it is not clear * whether mixins are defined or not). * If it is INVALID MixinComputeDefined can be used to compute the order * and set the instance to DEFINE or NONE */ static void MixinComputeDefined(Tcl_Interp *in, XOTclObject *obj) { MixinComputeOrder(in, obj); obj->flags |= XOTCL_MIXIN_ORDER_VALID; if (obj->mixinOrder) obj->flags |= XOTCL_MIXIN_ORDER_DEFINED; else obj->flags &= ~XOTCL_MIXIN_ORDER_DEFINED; } /* * walk through the mixin order until the current mixin is reached. * then use the next mixin as current mixin. * * precondition: obj->mixinStack is not NULL */ static void MixinSeekCurrent(Tcl_Interp *in, XOTclObject *obj, XOTclCmdList **cmdList) { Tcl_Command currentCmdPtr; /* ensure that the mixin order is not invalid, otherwise compute order */ assert(obj->flags & XOTCL_MIXIN_ORDER_VALID); /*MixinComputeDefined(in, obj);*/ currentCmdPtr = obj->mixinStack->currentCmdPtr; /* { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc = cs->top; fprintf(stderr, "%p == %p ==> %d \n", csc->cl, currentCmdPtr, csc->cmdPtr == currentCmdPtr); } */ /*** { Tcl_Obj *sr; MixinInfo(in, obj->mixinOrder, NULL,0); sr = Tcl_GetObjResult(in); fprintf(stderr,"INFO->%s order %p next %p\n",ObjStr(sr), obj->mixinOrder, obj->mixinOrder->next); } ***/ *cmdList = obj->mixinOrder; /* fprintf(stderr, "->1 mixin seek current = %p next = %p %s\n", currentCmdPtr, (*cmdList)->next, (*cmdList)->next ? Tcl_GetCommandName(in, (*cmdList)->next->cmdPtr) : ""); */ #if defined(ACTIVEMIXIN) /*RUNTIME_STATE(in)->cmdPtr = (*cmdList)->next ? (*cmdList)->next->cmdPtr : NULL;*/ RUNTIME_STATE(in)->cmdPtr = (*cmdList)->cmdPtr; #endif /* go forward to current class */ while (*cmdList && currentCmdPtr) { /* fprintf(stderr, "->2 mixin seek current = %p next = %p\n", currentCmdPtr, (*cmdList)->next);*/ if ((*cmdList)->cmdPtr == currentCmdPtr) currentCmdPtr = 0; *cmdList = (*cmdList)->next; #if defined(ACTIVEMIXIN) /*RUNTIME_STATE(in)->cmdPtr = (*cmdList)->next ? (*cmdList)->next->cmdPtr : NULL;*/ RUNTIME_STATE(in)->cmdPtr = (*cmdList)->cmdPtr; #endif } } /* * before we can perform a mixin dispatch, MixinSearchProc seeks the * current mixin and the relevant calling information */ static Tcl_Command MixinSearchProc(Tcl_Interp *in, XOTclObject *obj, char *methodName, XOTclClass **cl, Tcl_ObjCmdProc **proc, ClientData* cp, Tcl_Command* currentCmdPtr) { Tcl_Command cmd = NULL; XOTclCmdList *cmdList; XOTclClass *cls; assert(obj); assert(obj->mixinStack); MixinSeekCurrent(in, obj, &cmdList); /* fprintf(stderr, "MixinSearch searching for '%s' %p\n", methodName,cmdList); */ /*CmdListPrint(in,"MixinSearch CL = \n", cmdList);*/ while (cmdList) { if (Tcl_Command_cmdEpoch(cmdList->cmdPtr)) { cmdList = cmdList->next; } else { cls = XOTclGetClassFromCmdPtr(cmdList->cmdPtr); /* fprintf(stderr,"+++ MixinSearch %s->%s in %p cmdPtr %p clientData %p\n", ObjStr(obj->cmdName),methodName, cmdList, cmdList->cmdPtr, cmdList->clientData); */ if (cls) { int guardOk = TCL_OK; cmd = FindMethod(methodName, cls->nsPtr); if (cmd && cmdList->clientData) { if (!RUNTIME_STATE(in)->cs.guardCount) { guardOk = GuardCall(obj, cls, (Tcl_Command) cmd, in, cmdList->clientData, 1); } } if (cmd && guardOk == TCL_OK) { /* * on success: compute mixin call data */ *cl = cls; *proc = Tcl_Command_objProc(cmd); *cp = Tcl_Command_objClientData(cmd); *currentCmdPtr = cmdList->cmdPtr; break; } else { cmd = NULL; cmdList = cmdList->next; } } } } return cmd; } /* * info option for mixins and instmixins */ static int MixinInfo(Tcl_Interp *in, XOTclCmdList* m, char *pattern, int withGuards) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); XOTclClass *mixinClass; while (m) { /* fprintf(stderr," mixin info m=%p, next=%p\n",m,m->next); */ mixinClass = XOTclGetClassFromCmdPtr(m->cmdPtr); if (mixinClass && (!pattern || Tcl_StringMatch(ObjStr(mixinClass->object.cmdName), pattern))) { if (withGuards && m->clientData) { Tcl_Obj *l = Tcl_NewListObj(0, NULL); Tcl_Obj *g = (Tcl_Obj*) m->clientData; Tcl_ListObjAppendElement(in, l, mixinClass->object.cmdName); Tcl_ListObjAppendElement(in, l, XOTclGlobalObjects[XOTE_GUARD_OPTION]); Tcl_ListObjAppendElement(in, l, g); Tcl_ListObjAppendElement(in, list, l); } else Tcl_ListObjAppendElement(in, list, mixinClass->object.cmdName); } m = m->next; } Tcl_SetObjResult(in, list); return TCL_OK; } static Tcl_Command MixinSearchMethodByName(Tcl_Interp *in, XOTclCmdList* mixinList, char *name, XOTclClass **cl) { Tcl_Command cmd; while (mixinList) { XOTclClass *mcl = XOTclpGetClass(in, (char *) Tcl_GetCommandName(in, mixinList->cmdPtr)); if (mcl && SearchCMethod(mcl, name, &cmd)) { if (cl) *cl = mcl; return cmd; } mixinList = mixinList->next; } return 0; } /* * Filter-Commands */ /* * The search method implements filter search order for filter * and instfilter: first a given name is interpreted as fully * qualified instproc name. If no instproc is found, a proc is * search with fully name. Otherwise the simple name is searched * on the heritage order: object (only for * per-object filters), class, meta-class */ static Tcl_Command FilterSearch(Tcl_Interp *in, char *name, XOTclObject *startingObj, XOTclClass *startingCl, XOTclClass **cl) { Tcl_Command cmd = NULL; if (startingObj) { XOTclObjectOpt *opt = startingObj->opt; /* * the object-specific filter can also be defined on the object's * class, its hierarchy, or the respective instmixins; thus use the * object's class as start point for the class-specific search then ... */ startingCl = startingObj->cl; /* * search for filters on object mixins */ if (opt && opt->mixins) { if ((cmd = MixinSearchMethodByName(in, opt->mixins, name, cl))) { return cmd; } } } /* * search for instfilters on instmixins */ if (startingCl) { XOTclClassOpt* opt = startingCl->opt; if (opt && opt->instmixins) { if ((cmd = MixinSearchMethodByName(in, opt->instmixins, name, cl))) { return cmd; } } } /* * seach for object procs that are used as filters */ if (startingObj && startingObj->nsPtr) { if ((cmd = FindMethod(name, startingObj->nsPtr))) { *cl = (XOTclClass*)startingObj; return cmd; } } /* * ok, no filter on obj or mixins -> search class */ if (startingCl) { *cl = SearchCMethod(startingCl, name, &cmd); if (!*cl) { /* * If no filter is found yet -> search the meta-class */ *cl = SearchCMethod(startingCl->object.cl, name, &cmd); } } return cmd; } /* * Filter Guards */ /* check a filter guard, return 1 if ok */ static int GuardCheck(Tcl_Interp *in, ClientData clientData) { Tcl_Obj *guard = (Tcl_Obj*) clientData; int rc; XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; if (guard) { /* * if there are more than one filter guard for this filter * (i.e. they are inherited), then they are OR combined * -> if one check succeeds => return 1 */ /*fprintf(stderr, "checking guard **%s**\n", ObjStr(guard));*/ cs->guardCount++; rc = checkConditionInScope(in, guard); cs->guardCount--; /*fprintf(stderr, "checking guard **%s** returned rc=%d\n", ObjStr(fr->content), rc);*/ if (rc == TCL_OK) { /* fprintf(stderr, " +++ OK\n"); */ return TCL_OK; } else if (rc == TCL_ERROR) { Tcl_Obj *sr = Tcl_GetObjResult(in); INCR_REF_COUNT(sr); /* fprintf(stderr, " +++ ERROR\n");*/ XOTclVarErrMsg(in, "Guard Error: '", ObjStr(guard), "'\n\n", ObjStr(sr), (char *) NULL); DECR_REF_COUNT(sr); return TCL_ERROR; } } /* fprintf(stderr, " +++ FAILED\n"); */ return XOTCL_CHECK_FAILED; } /* static void GuardPrint(Tcl_Interp *in, ClientData clientData) { Tcl_Obj *guard = (TclObj*) clientData; fprintf(stderr, " +++ \n"); if (guard) { fprintf(stderr, " * %s \n", ObjStr(guard)); } fprintf(stderr, " +++ \n"); } */ static void GuardDel(XOTclCmdList* CL) { /*fprintf(stderr, "GuardDel %p cd = %p\n", CL, CL? CL->clientData : NULL);*/ if (CL && CL->clientData) { DECR_REF_COUNT((Tcl_Obj*)CL->clientData); CL->clientData = NULL; } } XOTCLINLINE static void GuardAdd(Tcl_Interp *in, XOTclCmdList* CL, Tcl_Obj *guard) { if (guard) { GuardDel(CL); if (strlen(ObjStr(guard)) != 0) { INCR_REF_COUNT(guard); CL->clientData = (ClientData) guard; /*fprintf(stderr,"guard added to %p cmdPtr=%p, clientData= %p\n", CL, CL->cmdPtr, CL->clientData); */ } } } /* static void GuardAddList(Tcl_Interp *in, XOTclCmdList* dest, ClientData source) { XOTclTclObjList* s = (XOTclTclObjList*) source; while (s) { GuardAdd(in, dest, (Tcl_Obj*) s->content); s = s->next; } } */ static int GuardCall(XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd, Tcl_Interp *in, ClientData clientData, int push) { int rc = TCL_OK; if (clientData) { Tcl_Obj *res = Tcl_GetObjResult(in); /* save the result */ INCR_REF_COUNT(res); /* GuardPrint(in, cmdList->clientData); */ /* * ok, there is a guard ... we have to push a * fake callframe on the tcl stack so that uplevel * is in sync with the XOTcl callstack, and we can uplevel * into the above pushed CallStack entry */ if (push) { CallStackPush(in, obj, cl, cmd, 0, 0, XOTCL_CSC_TYPE_GUARD); rc = GuardCheck(in, clientData); CallStackPop(in); } else { rc = GuardCheck(in, clientData); } Tcl_SetObjResult(in, res); /* restore the result */ DECR_REF_COUNT(res); } return rc; } static int GuardAddFromDefinitionList(Tcl_Interp *in, XOTclCmdList* dest, XOTclObject *obj, Tcl_Command interceptorCmd, XOTclCmdList* interceptorDefList) { XOTclCmdList* h; if (interceptorDefList != 0) { h = CmdListFindCmdInList(interceptorCmd, interceptorDefList); if (h) { GuardAdd(in, dest, (Tcl_Obj*) h->clientData); /* * 1 means we have added a guard successfully "interceptorCmd" */ return 1; } } /* * 0 means we have not added a guard successfully "interceptorCmd" */ return 0; } static void GuardAddInheritedGuards(Tcl_Interp *in, XOTclCmdList* dest, XOTclObject *obj, Tcl_Command filterCmd) { XOTclClasses* pl; int guardAdded = 0; XOTclObjectOpt *opt; /* search guards for instfilters registered on mixins */ if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml = obj->mixinOrder; XOTclClass *mixin; while (ml && ! guardAdded) { mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin && mixin->opt) { guardAdded = GuardAddFromDefinitionList(in, dest, obj, filterCmd, mixin->opt->instfilters); } ml = ml->next; } } /* search per-object filters */ opt = obj->opt; if (!guardAdded && opt && opt->filters) { guardAdded = GuardAddFromDefinitionList(in, dest, obj, filterCmd, opt->filters); } if (!guardAdded) { /* search per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); !guardAdded && pl; pl = pl->next) { XOTclClassOpt* opt = pl->cl->opt; if (opt) { guardAdded = GuardAddFromDefinitionList(in, dest, obj, filterCmd, opt->instfilters); } } /* * if this is not a registered filter, it is an inherited filter, like: * Class A * A instproc f ... * Class B -superclass A * B instproc {{f {}}} * B instfilter f * -> get the guard from the filter that inherits it (here B->f) */ if (!guardAdded) { XOTclCmdList* registeredFilter = CmdListFindNameInList(in,(char *) Tcl_GetCommandName(in, filterCmd), obj->filterOrder); if (registeredFilter) { GuardAdd(in, dest, (Tcl_Obj*) registeredFilter->clientData); } } } } static int GuardList(Tcl_Interp *in, XOTclCmdList* frl, char *interceptorName) { XOTclCmdList* h; if (frl) { /* try to find simple name first */ h = CmdListFindNameInList(in, interceptorName, frl); if (!h) { /* maybe it is a qualified name */ Tcl_Command cmd = NSFindCommand(in, interceptorName, NULL); if (cmd) { h = CmdListFindCmdInList(cmd, frl); } } if (h) { Tcl_ResetResult(in); if (h->clientData) { Tcl_Obj *g = (Tcl_Obj*) h->clientData; Tcl_SetObjResult(in, g); } return TCL_OK; } } return XOTclVarErrMsg(in, "info (*)guard: can't find filter/mixin ", interceptorName, (char *) NULL); } /* * append a filter command to the 'filterList' of an obj/class */ static int FilterAdd(Tcl_Interp *in, XOTclCmdList **filterList, Tcl_Obj *name, XOTclObject *startingObj, XOTclClass *startingCl) { Tcl_Command cmd; int ocName; Tcl_Obj **ovName; Tcl_Obj *guard = NULL; XOTclCmdList *new; XOTclClass *cl; if (Tcl_ListObjGetElements(in, name, &ocName, &ovName) == TCL_OK && ocName > 1) { if (ocName == 3 && !strcmp(ObjStr(ovName[1]), XOTclGlobalStrings[XOTE_GUARD_OPTION])) { name = ovName[0]; guard = ovName[2]; } } if (!(cmd = FilterSearch(in, ObjStr(name), startingObj, startingCl, &cl))) { if (startingObj) return XOTclVarErrMsg(in, "filter: can't find filterproc on: ", ObjStr(startingObj->cmdName), " - proc: ", ObjStr(name), (char *) NULL); else return XOTclVarErrMsg(in, "instfilter: can't find filterproc on: ", ObjStr(startingCl->object.cmdName), " - proc: ", ObjStr(name), (char *) NULL); } /*fprintf(stderr, " +++ adding filter %s cl %p\n", ObjStr(name),cl);*/ new = CmdListAdd(filterList, cmd, cl, /*noDuplicates*/ 1); if (guard) { GuardAdd(in, new, guard); } else { if (new->clientData) GuardDel(new); } return TCL_OK; } /* * reset the filter order cached in obj->filterOrder */ static void FilterResetOrder(XOTclObject *obj) { CmdListRemoveList(&obj->filterOrder, GuardDel); obj->filterOrder = 0; } /* * search the filter in the hierarchy again with FilterSearch, e.g. * upon changes in the class hierarchy or mixins that carry the filter * command, so that we can be sure it is still reachable. */ static void FilterSearchAgain(Tcl_Interp *in, XOTclCmdList **filters, XOTclObject *startingObj, XOTclClass *startingCl) { char *simpleName; Tcl_Command cmd; XOTclCmdList *cmdList, *del; XOTclClass *cl = NULL; CmdListRemoveEpoched(filters, GuardDel); cmdList = *filters; while (cmdList) { simpleName = (char *) Tcl_GetCommandName(in, cmdList->cmdPtr); cmd = FilterSearch(in, simpleName, startingObj, startingCl, &cl); if (cmd == NULL) { del = cmdList; cmdList = cmdList->next; del = CmdListRemoveFromList(filters, del); CmdListDeleteCmdListEntry(del, GuardDel); } else { if (cmd != cmdList->cmdPtr) CmdListReplaceCmd(cmdList, cmd, cl); cmdList = cmdList->next; } } /* some entries might be NULL now, if they are not found anymore -> delete those CmdListRemoveNulledEntries(filters, GuardDel); */ } /* * if the class hierarchy or class filters have changed -> * invalidate filter entries in all dependent instances * */ static void FilterInvalidateObjOrders(Tcl_Interp *in, XOTclClass *cl) { XOTclClasses *saved = cl->order, *clPtr, *savePtr; cl->order = 0; savePtr = clPtr = ComputeOrder(cl, cl->order, Sub); cl->order = saved; while (clPtr != 0) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : 0; /* recalculate the commands of all instfilter registrations */ if (clPtr->cl->opt) { FilterSearchAgain(in, &clPtr->cl->opt->instfilters, 0, clPtr->cl); } for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject*) Tcl_GetHashKey(&clPtr->cl->instances, hPtr); FilterResetOrder(obj); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; /* recalculate the commands of all object filter registrations */ if (obj->opt) { FilterSearchAgain(in, &obj->opt->filters, obj, 0); } } clPtr = clPtr->next; } XOTclFreeClasses(savePtr); } /* * from cl on down the hierarchy we remove all filters * the refer to "removeClass" namespace. E.g. used to * remove filters defined in superclass list from dependent * class cl */ static void FilterRemoveDependentFilterCmds(XOTclClass *cl, XOTclClass *removeClass) { XOTclClasses *saved = cl->order, *clPtr; cl->order = 0; /*fprintf(stderr, "FilterRemoveDependentFilterCmds cl %p %s, removeClass %p %s\n", cl,ObjStr(cl->object.cmdName), removeClass,ObjStr(removeClass->object.cmdName));*/ for (clPtr = ComputeOrder(cl, cl->order, Sub); clPtr; clPtr = clPtr->next) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : 0; XOTclClassOpt* opt = clPtr->cl->opt; if (opt) { CmdListRemoveContextClassFromList(&opt->instfilters,removeClass, GuardDel); } for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject*) Tcl_GetHashKey(&clPtr->cl->instances, hPtr); if (obj->opt) { CmdListRemoveContextClassFromList(&obj->opt->filters,removeClass, GuardDel); } } } XOTclFreeClasses(cl->order); cl->order = saved; } /* * build up a qualifier of the form proc/instproc * if cl is not NULL, we build an instproc identifier for cl, else a proc * with obj */ static Tcl_Obj* getFullProcQualifier(Tcl_Interp *in, CONST84 char *cmdName, XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_Obj *procObj = Tcl_NewStringObj(cmdName, -1); Tcl_ObjCmdProc *objProc = Tcl_Command_objProc(cmd); int isTcl = (TclIsProc((Command *)cmd) != NULL); if (cl) { Tcl_ListObjAppendElement(in, list, cl->object.cmdName); /*fprintf(stderr,"current %p, dispatch %p, forward %p, parametermcd %p, is tcl %p\n", objProc, XOTclObjDispatch, XOTclForwardMethod, XOTclSetterMethod, TclIsProc((Command *)cmd)); */ if (isTcl) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_INSTPROC]); } else if (objProc == XOTclForwardMethod) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_INSTFORWARD]); } else if (objProc == XOTclSetterMethod) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_INSTPARAMETERCMD]); } else { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_INSTCMD]); } } else { Tcl_ListObjAppendElement(in, list, obj->cmdName); if (isTcl) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_PROC]); } else if (objProc == XOTclForwardMethod) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_FORWARD]); } else if (objProc == XOTclSetterMethod) { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_PARAMETERCMD]); } else { Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_CMD]); } } Tcl_ListObjAppendElement(in, list, procObj); return list; } /* * info option for filters and instfilters * withGuards -> if not 0 => append guards * fullProcQualifiers -> if not 0 => full names with obj/class proc/instproc */ static int FilterInfo(Tcl_Interp *in, XOTclCmdList* f, char *pattern, int withGuards, int fullProcQualifiers) { CONST84 char *simpleName; Tcl_Obj *list = Tcl_NewListObj(0, NULL); /* guard lists should only have unqualified filter lists when withGuards is activated, fullProcQualifiers has not effect */ if (withGuards) { fullProcQualifiers = 0; } while (f) { simpleName = Tcl_GetCommandName(in, f->cmdPtr); if (!pattern || Tcl_StringMatch(simpleName, pattern)) { if (withGuards && f->clientData) { Tcl_Obj *innerList = Tcl_NewListObj(0, NULL); Tcl_Obj *g = (Tcl_Obj*) f->clientData; Tcl_ListObjAppendElement(in, innerList, Tcl_NewStringObj(simpleName, -1)); Tcl_ListObjAppendElement(in, innerList, XOTclGlobalObjects[XOTE_GUARD_OPTION]); Tcl_ListObjAppendElement(in, innerList, g); Tcl_ListObjAppendElement(in, list, innerList); } else { if (fullProcQualifiers) { XOTclClass *fcl; XOTclObject *fobj; if (f->clorobj && !XOTclObjectIsClass(&f->clorobj->object)) { fobj = (XOTclObject *)f->clorobj; fcl = NULL; } else { fobj = NULL; fcl = f->clorobj; } Tcl_ListObjAppendElement(in, list, getFullProcQualifier(in, simpleName, fobj, fcl, f->cmdPtr)); } else { Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(simpleName, -1)); } } } f = f->next; } Tcl_SetObjResult(in, list); return TCL_OK; } /* * Appends XOTclCmdPtr* containing the filter cmds and their * superclass specializations to 'filterList' */ static void FilterComputeOrderFullList(Tcl_Interp *in, XOTclCmdList **filters, XOTclCmdList **filterList) { XOTclCmdList *f ; char *simpleName; XOTclClass *fcl; XOTclClasses *pl; /* * ensure that no epoched command is in the filters list */ CmdListRemoveEpoched(filters, GuardDel); for (f = *filters; f; f = f->next) { simpleName = (char *) Tcl_GetCommandName(in, f->cmdPtr); fcl = f->clorobj; CmdListAdd(filterList, f->cmdPtr, fcl, /*noDuplicates*/ 0); if (fcl && !XOTclObjectIsClass(&fcl->object)) { /* get the object for per-object filter */ XOTclObject *fObj = (XOTclObject *)fcl; /* and then get class */ fcl = fObj->cl; } /* if we have a filter class -> search up the inheritance hierarchy*/ if (fcl) { pl = ComputeOrder(fcl, fcl->order, Super); if (pl && pl->next) { /* don't search on the start class again */ pl = pl->next; /* now go up the hierarchy */ for(; pl; pl = pl->next) { Tcl_Command pi = FindMethod(simpleName, pl->cl->nsPtr); if (pi) { CmdListAdd(filterList, pi, pl->cl, /*noDuplicates*/ 0); /* fprintf(stderr, " %s::%s, ", ObjStr(pl->cl->object.cmdName), simpleName); */ } } } } } /*CmdListPrint(in,"FilterComputeOrderFullList....\n", *filterList);*/ } /* * Computes a linearized order of filter and instfilter. Then * duplicates in the full list and with the class inheritance list of * 'obj' are eliminated. * The precendence rule is that the last occurence makes it into the * final list. */ static void FilterComputeOrder(Tcl_Interp *in, XOTclObject *obj) { XOTclCmdList *filterList = 0, *next, *checker, *newlist; XOTclClasses *pl; if (obj->filterOrder) FilterResetOrder(obj); /* fprintf(stderr, " List: ", ObjStr(obj->cmdName)); */ /* append instfilters registered for mixins */ if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml = obj->mixinOrder; XOTclClass *mixin; while (ml) { mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin && mixin->opt && mixin->opt->instfilters) FilterComputeOrderFullList(in, &mixin->opt->instfilters, &filterList); ml = ml->next; } } /* append per-obj filters */ if (obj->opt) FilterComputeOrderFullList(in, &obj->opt->filters, &filterList); /* append per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl=pl->next) { XOTclClassOpt* opt = pl->cl->opt; if (opt && opt->instfilters) { FilterComputeOrderFullList(in, &opt->instfilters, &filterList); } } /* fprintf(stderr, "\n"); */ /* use no duplicates & no classes of the precedence order on the resulting list */ while (filterList) { checker = next = filterList->next; while (checker) { if (checker->cmdPtr == filterList->cmdPtr) break; checker = checker->next; } if (checker == 0) { newlist = CmdListAdd(&obj->filterOrder, filterList->cmdPtr, filterList->clorobj, /*noDuplicates*/ 0); GuardAddInheritedGuards(in, newlist, obj, filterList->cmdPtr); /* fprintf(stderr, " Adding %s::%s,\n", filterList->cmdPtr->nsPtr->fullName, Tcl_GetCommandName(in, filterList->cmdPtr)); */ /* GuardPrint(in, newlist->clientData); */ } CmdListDeleteCmdListEntry(filterList, GuardDel); filterList = next; } /* fprintf(stderr, "\n"); */ } /* * the filter order is either * DEFINED (there are filter on the instance), * NONE (there are no filter for the instance), * or INVALID (a class re-strucuturing has occured, thus it is not clear * whether filters are defined or not). * If it is INVALID FilterComputeDefined can be used to compute the order * and set the instance to DEFINE or NONE */ static void FilterComputeDefined(Tcl_Interp *in, XOTclObject *obj) { FilterComputeOrder(in, obj); obj->flags |= XOTCL_FILTER_ORDER_VALID; if (obj->filterOrder) obj->flags |= XOTCL_FILTER_ORDER_DEFINED; else obj->flags &= ~XOTCL_FILTER_ORDER_DEFINED; } /* * push a filter stack information on this object */ static int FilterStackPush(Tcl_Interp *in, XOTclObject *obj, Tcl_Obj *calledProc) { register XOTclFilterStack* h = NEW(XOTclFilterStack); h->currentCmdPtr = 0; h->calledProc = calledProc; INCR_REF_COUNT(h->calledProc); h->next = obj->filterStack; obj->filterStack = h; return 1; } /* * pop a filter stack information on this object */ static void FilterStackPop(XOTclObject *obj) { register XOTclFilterStack *h = obj->filterStack; obj->filterStack = h->next; /* free stack entry */ DECR_REF_COUNT(h->calledProc); FREE(XOTclFilterStack, h); } /* * walk through the filter order until the current filter is reached. * then use the next filter as current filter. * * precondition: obj->filterStack is not NULL */ static void FilterSeekCurrent(Tcl_Interp *in, XOTclObject *obj, XOTclCmdList **cmdList) { Tcl_Command currentCmd = obj->filterStack->currentCmdPtr; assert(obj->flags & XOTCL_FILTER_ORDER_VALID); /* ensure that the filter order is not invalid, otherwise compute order FilterComputeDefined(in, obj); */ *cmdList = obj->filterOrder; /* go forward to current class */ while (*cmdList && currentCmd) { if ((*cmdList)->cmdPtr == currentCmd) currentCmd = 0; *cmdList = (*cmdList)->next; } } /* * seek through the filters active for "obj" and check whether cmdPtr * is among them */ XOTCLINLINE static int FilterActiveOnObj(Tcl_Interp *in, XOTclObject *obj, Tcl_Command cmd) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *bot = cs->content; register XOTclCallStackContent *csc = cs->top; while (csc > bot) { /* only check the callstack entries for this object && only check the callstack entries for the given cmd */ if (obj == csc->self && cmd == csc->cmdPtr && csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { return 1; } csc--; } return 0; } /* * search through the filter list on obj and class hierarchy * for registration of a command ptr as filter * * returns a tcl obj list with the filter registration, like: * " filter , * " instfilter , * or an empty list, if not registered */ static Tcl_Obj* FilterFindReg(Tcl_Interp *in, XOTclObject *obj, Tcl_Command cmd) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); XOTclClasses* pl; /* search per-object filters */ if (obj->opt && CmdListFindCmdInList(cmd, obj->opt->filters)) { Tcl_ListObjAppendElement(in, list, obj->cmdName); Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_FILTER]); Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(Tcl_GetCommandName(in, cmd), -1)); return list; } /* search per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl = pl->next) { XOTclClassOpt* opt = pl->cl->opt; if (opt && opt->instfilters) { if (CmdListFindCmdInList(cmd, opt->instfilters)) { Tcl_ListObjAppendElement(in, list, pl->cl->object.cmdName); Tcl_ListObjAppendElement(in, list, XOTclGlobalObjects[XOTE_INSTFILTER]); Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(Tcl_GetCommandName(in, cmd), -1)); return list; } } } return list; } /* * before we can perform a filter dispatch, FilterSearchProc seeks the * current filter and the relevant calling information */ static Tcl_Command FilterSearchProc(Tcl_Interp *in, XOTclObject *obj, Tcl_ObjCmdProc **proc, ClientData* cp, Tcl_Command* currentCmd, XOTclClass **cl) { XOTclCmdList *cmdList; assert(obj); assert(obj->filterStack); *currentCmd = 0; *proc = 0; *cp = 0; FilterSeekCurrent(in, obj, &cmdList); while (cmdList) { if (Tcl_Command_cmdEpoch(cmdList->cmdPtr)) { cmdList = cmdList->next; } else if (FilterActiveOnObj(in, obj, cmdList->cmdPtr)) { /* fprintf(stderr, "Filter <%s> -- Active on: %s\n", Tcl_GetCommandName(in, (Tcl_Command)cmdList->cmdPtr), ObjStr(obj->cmdName)); */ obj->filterStack->currentCmdPtr = cmdList->cmdPtr; FilterSeekCurrent(in, obj, &cmdList); } else { /* ok. we' ve found it */ *proc = Tcl_Command_objProc(cmdList->cmdPtr); *cp = Tcl_Command_objClientData(cmdList->cmdPtr); if (cmdList->clorobj && !XOTclObjectIsClass(&cmdList->clorobj->object)) { *cl = NULL; } else { *cl = cmdList->clorobj; } *currentCmd = cmdList->cmdPtr; /* fprintf(stderr, "FilterSearchProc - found: %s, %p\n", Tcl_GetCommandName(in, (Tcl_Command)cmdList->cmdPtr), cmdList->cmdPtr); */ return cmdList->cmdPtr; } } return 0; } static int SuperclassAdd(Tcl_Interp *in, XOTclClass *cl, int oc, Tcl_Obj **ov, Tcl_Obj *arg) { XOTclClasses *filterCheck, *osl = 0; XOTclClass **scl = 0; int reversed = 0; int i, j; filterCheck = ComputeOrder(cl, cl->order, Super); /* * we have to remove all dependent superclass filter referenced * by class or one of its subclasses * * do not check the class "cl" itself (first entry in * filterCheck class list) */ if (filterCheck) filterCheck = filterCheck->next; while (filterCheck) { FilterRemoveDependentFilterCmds(cl, filterCheck->cl); filterCheck = filterCheck->next; } /* invalidate all interceptors orders of instances of this and of all depended classes */ MixinInvalidateObjOrders(in, cl); FilterInvalidateObjOrders(in, cl); scl = NEW_ARRAY(XOTclClass*,oc); for (i = 0; i < oc; i++) { if (GetXOTclClassFromObj(in, ov[i], &scl[i], 1) != TCL_OK) { FREE(XOTclClass**, scl); return XOTclErrBadVal(in, "superclass", "a list of classes", ObjStr(arg)); } } /* * check that superclasses don't precede their classes */ for (i = 0; i < oc; i++) { if (reversed != 0) break; for (j = i+1; j < oc; j++) { XOTclClasses* dl = ComputeOrder(scl[j], scl[j]->order, Super); if (reversed != 0) break; while (dl != 0) { if (dl->cl == scl[i]) break; dl = dl->next; } if (dl != 0) reversed = 1; } } if (reversed != 0) { return XOTclErrBadVal(in, "superclass", "classes in dependence order", ObjStr(arg)); } while (cl->super != 0) { /* * build up an old superclass list in case we need to revert */ XOTclClass *sc = cl->super->cl; XOTclClasses* l = osl; osl = NEW(XOTclClasses); osl->cl = sc; osl->next = l; (void)RemoveSuper(cl, cl->super->cl); } for (i = 0; i < oc; i++) AddSuper(cl, scl[i]); FREE(XOTclClass**,scl); FlushPrecedences(cl); if (!ComputeOrder(cl, cl->order, Super)) { /* * cycle in the superclass graph, backtrack */ XOTclClasses* l; while (cl->super != 0) (void)RemoveSuper(cl, cl->super->cl); for (l = osl; l != 0; l = l->next) AddSuper(cl, l->cl); XOTclFreeClasses(osl); return XOTclErrBadVal(in, "superclass", "a cycle-free graph", ObjStr(arg)); } XOTclFreeClasses(osl); /* if there are no more super classes add the Object class as superclasses */ if (cl->super == 0) AddSuper(cl, RUNTIME_STATE(in)->theObject); Tcl_ResetResult(in); return TCL_OK; } static int varExists(Tcl_Interp *in, XOTclObject *obj, char *varName, char *index, int triggerTrace, int requireDefined) { XOTcl_FrameDecls; Var *varPtr, *arrayPtr; int result; int flags; flags = (index == NULL) ? TCL_PARSE_PART1 : 0; if (obj->nsPtr) { Tcl_SetNamespaceResolvers(obj->nsPtr, (Tcl_ResolveCmdProc*)NULL, varResolver, (Tcl_ResolveCompiledVarProc*)NULL); } XOTcl_PushFrame(in, obj); #if defined(PRE83) varPtr = TclLookupVar(in, varName, index, flags, "access", /*createPart1*/ 0, /*createPart2*/ 0, &arrayPtr); #else if (triggerTrace) varPtr = TclVarTraceExists(in, varName); else varPtr = TclLookupVar(in, varName, index, flags, "access", /*createPart1*/ 0, /*createPart2*/ 0, &arrayPtr); #endif result = ((varPtr != NULL) && (!requireDefined || !TclIsVarUndefined(varPtr))); XOTcl_PopFrame(in, obj); if (obj->nsPtr) { Tcl_SetNamespaceResolvers(obj->nsPtr, (Tcl_ResolveCmdProc*)NULL, (Tcl_ResolveVarProc *)NULL, (Tcl_ResolveCompiledVarProc*)NULL); } return result; } static void getVarAndNameFromHash(Tcl_HashEntry *hPtr, Var **val, Tcl_Obj **varNameObj) { *val = VarHashGetValue(hPtr); #if defined(PRE85) # if FORWARD_COMPATIBLE if (forwardCompatibleMode) { *varNameObj = VarHashGetKey(*val); } else { *varNameObj = Tcl_NewStringObj(Tcl_GetHashKey(hPtr->tablePtr, hPtr),-1); } # else *varNameObj = Tcl_NewStringObj(Tcl_GetHashKey(hPtr->tablePtr, hPtr),-1); # endif #else *varNameObj = VarHashGetKey(*val); #endif } /* * Search default values specified through 'parameter' on one class */ static int SearchDefaultValuesOnClass(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cmdCl, XOTclClass *targetClass) { int result = TCL_OK; Var *defaults, *initcmds; Tcl_Namespace *ns = targetClass->object.nsPtr; TclVarHashTable *varTable = ns ? Tcl_Namespace_varTable(ns) : targetClass->object.varTable; defaults = LookupVarFromTable(varTable, "__defaults",(XOTclObject*)targetClass); initcmds = LookupVarFromTable(varTable, "__initcmds",(XOTclObject*)targetClass); if (defaults && TclIsVarArray(defaults)) { TclVarHashTable *tablePtr = valueOfVar(TclVarHashTable,defaults,tablePtr); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = tablePtr ? Tcl_FirstHashEntry(VarHashTable(tablePtr), &hSrch) : 0; /*fprintf(stderr, "+++ we have defaults for %s in <%s>\n", ObjStr(obj->cmdName),className(targetClass));*/ /* iterate over all elements of the defaults array */ for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { Var *val; Tcl_Obj *varNameObj; getVarAndNameFromHash(hPtr, &val, &varNameObj); INCR_REF_COUNT(varNameObj); if (TclIsVarScalar(val)) { Tcl_Obj *oldValue = XOTclOGetInstVar2((XOTcl_Object*) obj, in, varNameObj, NULL, TCL_LEAVE_ERR_MSG|TCL_PARSE_PART1); /** we check whether the variable is already set. if so, we do not set it again */ if (oldValue == NULL) { Tcl_Obj *valueObj = valueOfVar(Tcl_Obj,val,objPtr); char *value = ObjStr(valueObj), *v; int doSubst = 0; for (v=value; *v; v++) { if (*v == '[' && doSubst == 0) doSubst = 1; else if ((doSubst == 1 && *v == ']') || *v == '$') { doSubst = 2; break; } } if (doSubst == 2) { /* we have to subst */ Tcl_Obj *ov[2]; int rc = CallStackPush(in, obj, cmdCl, 0, 1, &varNameObj, XOTCL_CSC_TYPE_PLAIN); if (rc != TCL_OK) { DECR_REF_COUNT(varNameObj); return rc; } ov[1] = valueObj; Tcl_ResetResult(in); rc = XOTcl_SubstObjCmd(NULL, in, 2, ov); CallStackPop(in); if (rc == TCL_OK) { valueObj = Tcl_GetObjResult(in); } else { DECR_REF_COUNT(varNameObj); return rc; } } /*fprintf(stderr,"calling %s value='%s'\n", ObjStr(varNameObj),ObjStr(valueObj));*/ INCR_REF_COUNT(valueObj); result = XOTclCallMethodWithArgs((ClientData)obj, in, varNameObj, valueObj, 1, 0, 0); DECR_REF_COUNT(valueObj); if (result != TCL_OK) { DECR_REF_COUNT(varNameObj); return result; } } } DECR_REF_COUNT(varNameObj); } } if (initcmds && TclIsVarArray(initcmds)) { TclVarHashTable *tablePtr = valueOfVar(TclVarHashTable,initcmds,tablePtr); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = tablePtr ? Tcl_FirstHashEntry(VarHashTable(tablePtr), &hSrch) : 0; /*fprintf(stderr, "+++ we have initcmds for <%s>\n", className(targetClass));*/ /* iterate over the elements of initcmds */ for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { Var *val; Tcl_Obj *varNameObj; getVarAndNameFromHash(hPtr, &val, &varNameObj); INCR_REF_COUNT(varNameObj); /*fprintf(stderr,"varexists(%s->%s) = %d\n", ObjStr(obj->cmdName), ObjStr(varNameObj), varExists(in, obj, ObjStr(varNameObj), NULL, 0, 0));*/ if (TclIsVarScalar(val) && (!varExists(in, obj, ObjStr(varNameObj), NULL, 0, 0) || varExists(in, &targetClass->object, "__defaults", ObjStr(varNameObj), 0,0) )) { Tcl_Obj *valueObj = valueOfVar(Tcl_Obj,val,objPtr); char *string = ObjStr(valueObj); int rc; XOTcl_FrameDecls; if (*string) { XOTcl_PushFrame(in, obj); /* make instvars accessible */ CallStackPush(in, obj, cmdCl, 0, 1, &varNameObj, XOTCL_CSC_TYPE_PLAIN); /*allow to call self*/ /*fprintf(stderr,"evaluating '%s' obj=%s\n\n",ObjStr(valueObj),ObjStr(obj->cmdName)); XOTclCallStackDump(in);*/ rc = Tcl_EvalObjEx(in, valueObj, TCL_EVAL_DIRECT); CallStackPop(in); XOTcl_PopFrame(in, obj); if (rc != TCL_OK) { DECR_REF_COUNT(varNameObj); return rc; } /* fprintf(stderr,"... varexists(%s->%s) = %d\n", ObjStr(obj->cmdName), varName, varExists(in, obj, varName, NULL, 0, 0)); */ } } DECR_REF_COUNT(varNameObj); } } return result; } /* * Search default values specified through 'parameter' on * mixin and class hierarchy */ static int SearchDefaultValues(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cmdCl) { XOTcl_FrameDecls; XOTclClass *cl = obj->cl, *mixin; XOTclClasses *pl = 0; XOTclCmdList *ml = 0; int result = TCL_OK; if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) ml = obj->mixinOrder; assert(cl); XOTcl_PushFrame(in, obj); while (ml) { mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); result = SearchDefaultValuesOnClass(in, obj, cmdCl, mixin); if (result != TCL_OK) break; ml = ml->next; } for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->next) { result = SearchDefaultValuesOnClass(in, obj, cmdCl, pl->cl); if (result != TCL_OK) break; } XOTcl_PopFrame(in,obj); return result; } static int ParameterSearchDefaultsMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclObject *defaultObj; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "searchDefaults obj"); if (XOTclObjConvertObject(in, objv[1], &defaultObj) != TCL_OK) return XOTclVarErrMsg(in, "Can't find default object ", ObjStr(objv[1]), (char *) NULL); /* * Search for default values for vars on superclasses */ return SearchDefaultValues(in, defaultObj, defaultObj->cl); } static int callParameterMethodWithArg(XOTclObject *obj, Tcl_Interp *in, Tcl_Obj *method, Tcl_Obj *arg, int objc, Tcl_Obj *CONST objv[], int flags) { XOTclClassOpt* opt = obj->cl->opt; Tcl_Obj *pcl = XOTclGlobalObjects[XOTE_PARAM_CL]; XOTclClass *paramCl; int result; if (opt && opt->parameterClass) pcl = opt->parameterClass; if (GetXOTclClassFromObj(in,pcl,¶mCl, 1) == TCL_OK) { result = XOTclCallMethodWithArgs((ClientData)paramCl, in, method, arg, objc-2, objv, flags); } else result = XOTclVarErrMsg(in, "create: can't find parameter class", (char *) NULL); return result; } /* * method dispatch */ /* actually call a method (with assertion checking) */ static int callProcCheck(ClientData cp, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], Tcl_Command cmd, XOTclObject *obj, XOTclClass *cl, char *methodName, int frameType, int isTclProc) { int result = TCL_OK; XOTclRuntimeState *rst = RUNTIME_STATE(in); CheckOptions co; #if defined(PROFILE) long int startUsec, startSec; struct timeval trt; gettimeofday(&trt, NULL); startSec = trt.tv_sec; startUsec = trt.tv_usec; #endif assert(obj); rst->callIsDestroy = 0; /*fprintf(stderr,"callProcCheck: setting callIsDestroy = 0, m=%s obj=%p (%s)\n", methodName, obj, ObjStr(obj->cmdName));*/ /* fprintf(stderr,"*** callProcCheck: cmd = %p\n",cmd); fprintf(stderr, "cp=%p, isTclProc=%d %p %s, dispatch=%d %p, forward=%d %p, scoped %p, ov[0]=%p oc=%d\n", cp, isTclProc, cmd, Tcl_GetCommandName(in, cmd), Tcl_Command_objProc(cmd) == XOTclObjDispatch, XOTclObjDispatch, Tcl_Command_objProc(cmd) == XOTclForwardMethod, XOTclForwardMethod, XOTclObjscopedMethod, objv[0], objc );*/ #ifdef CALLSTACK_TRACE XOTclCallStackDump(in); #endif if (!isTclProc && obj->teardown) { co = 0; if (obj->opt) co = obj->opt->checkoptions; if ((co & CHECK_INVAR) && ((result = AssertionCheckInvars(in, obj, methodName, co)) == TCL_ERROR)) { goto finish; } #ifdef DISPATCH_TRACE printCall(in,"callProcCheck cmd", objc,objv); /*fprintf(stderr,"\tproc=%s\n",Tcl_GetCommandName(in,cmd));*/ #endif result = (*Tcl_Command_objProc(cmd))(cp, in, objc, objv); #ifdef DISPATCH_TRACE printExit(in,"callProcCheck cmd", objc,objv, result); /*fprintf(stderr, " returnCode %d xotcl rc %d\n", Tcl_Interp_returnCode(in), rst->returnCode);*/ #endif /* if (obj && obj->teardown && cl && !(obj->flags & XOTCL_DESTROY_CALLED)) { fprintf(stderr, "Obj= %s ", ObjStr(obj->cmdName)); fprintf(stderr, "CL= %s ", ObjStr(cl->object.cmdName)); fprintf(stderr, "method=%s\n", methodName); } */ co = 0; if (!rst->callIsDestroy && obj->opt) co = obj->opt->checkoptions; if ((co & CHECK_INVAR) && ((result = AssertionCheckInvars(in, obj, methodName,co)) == TCL_ERROR)) { goto finish; } } else { /* isTclProc == 1 * if this is a filter, check whether its guard applies, * if not: just step forward to the next filter */ if (frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { XOTclCmdList *cmdList; /* * seek cmd in obj's filterOrder */ assert(obj->flags & XOTCL_FILTER_ORDER_VALID); /* otherwise: FilterComputeDefined(in, obj);*/ cmdList = obj->filterOrder; while (cmdList && cmdList->cmdPtr != cmd) cmdList = cmdList->next; /* * when it is found, check whether it has a filter guard */ if (cmdList) { int rc = GuardCall(obj, cl, (Tcl_Command) cmdList->cmdPtr, in, cmdList->clientData, 0); if (rc != TCL_OK) { if (rc != TCL_ERROR) { /* * call next, use the given objv's, not the callstack objv * we may not be in a method, thus there may be wrong or * no callstackobjs */ /*fprintf(stderr, "... calling nextmethod\n"); XOTclCallStackDump(in);*/ rc = XOTclNextMethod(obj, in, cl, methodName, objc, objv, /*useCallStackObjs*/ 0); /*fprintf(stderr, "... after nextmethod\n"); XOTclCallStackDump(in);*/ } return rc; } } } if (!rst->callIsDestroy && obj->teardown && !(obj->flags & XOTCL_DESTROY_CALLED)) { if (obj->opt && (obj->opt->checkoptions & CHECK_PRE) && (result = AssertionCheck(in, obj, cl, methodName, CHECK_PRE)) == TCL_ERROR) { goto finish; } } if (Tcl_Interp_numLevels(in) <= 2) rst->returnCode = TCL_OK; #ifdef DISPATCH_TRACE printCall(in,"callProcCheck tclCmd", objc,objv); fprintf(stderr,"\tproc=%s\n",Tcl_GetCommandName(in,cmd)); #endif result = (*Tcl_Command_objProc(cmd))(cp, in, objc, objv); #ifdef DISPATCH_TRACE printExit(in,"callProcCheck tclCmd", objc,objv, result); /* fprintf(stderr, " returnCode %d xotcl rc %d\n", Tcl_Interp_returnCode(in), rst->returnCode);*/ #endif /*if (Tcl_Interp_numLevels(in) <= 2 && rst->returnCode == TCL_BREAK) result = TCL_BREAK; else*/ if (result == TCL_BREAK && rst->returnCode == TCL_OK) rst->returnCode = result; /* we give the information whether the call has destroyed the object back to the caller, because after CallStackPop it cannot be retrieved via the call stack */ /* if the object is destroyed -> the assertion structs's are already destroyed */ if (rst->cs.top->callType & XOTCL_CSC_CALL_IS_DESTROY) { rst->callIsDestroy = 1; /*fprintf(stderr,"callProcCheck: setting callIsDestroy = 1\n");*/ } if (obj->opt && !rst->callIsDestroy && obj->teardown && (obj->opt->checkoptions & CHECK_POST) && (result = AssertionCheck(in, obj, cl, methodName, CHECK_POST) == TCL_ERROR)) { goto finish; } } finish: #if defined(PROFILE) if (rst->callIsDestroy == 0) { XOTclProfileEvaluateData(in, startSec, startUsec, obj, cl, methodName); } #endif return result; } static int DoCallProcCheck(ClientData cp, ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], Tcl_Command cmd, XOTclObject *obj, XOTclClass *cl, char *methodName, int frameType, int fromNext) { int rc, push = 1, isTclProc = 0; if (cp) { Tcl_ObjCmdProc *proc = Tcl_Command_objProc(cmd); if (proc == XOTclObjDispatch) { assert((TclIsProc((Command *)cmd) == NULL)); } else if (proc == XOTclForwardMethod || proc == XOTclObjscopedMethod) { tclCmdClientData *tcd = (tclCmdClientData *)cp; tcd->obj = obj; assert((TclIsProc((Command *)cmd) == NULL)); } else if (cp == XOTCL_NONLEAF_METHOD) { cp = cd; assert((TclIsProc((Command *)cmd) == NULL)); } else { assert((TclIsProc((Command *)cmd) != NULL)); isTclProc = 1; } } else { push = 0; assert((TclIsProc((Command *)cmd) == NULL)); cp = cd; } if (!fromNext) { objc--; objv++; } if (push) { /* push the xotcl info */ if ((CallStackPush(in, obj, cl, cmd, objc, objv, frameType)) != TCL_OK) return TCL_ERROR; } rc = callProcCheck(cp, in, objc, objv, cmd, obj, cl, methodName, frameType, isTclProc); if (push) { CallStackPop(in); } return rc; } XOTCLINLINE static int DoDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], int flags) { register XOTclObject *obj = (XOTclObject*)cd; int result = TCL_OK, mixinStackPushed = 0, filterStackPushed = 0, unknown, objflags, frameType = XOTCL_CSC_TYPE_PLAIN; #ifdef OBJDELETION_TRACE Tcl_Obj *method; #endif char *methodName, *callMethod; XOTclClass *cl = 0; ClientData cp = 0; Tcl_ObjCmdProc *proc = 0; Tcl_Command cmd = 0; XOTclRuntimeState *rst = RUNTIME_STATE(in); Tcl_Obj *cmdName = obj->cmdName; XOTclCallStack *cs = &rst->cs; /*int isdestroy = (objv[1] == XOTclGlobalObjects[XOTE_DESTROY]); */ #ifdef AUTOVARS int isNext; #endif assert(objc>0); methodName = ObjStr(objv[1]); #ifdef AUTOVARS isNext = isNextString(methodName); #endif #ifdef DISPATCH_TRACE printCall(in,"DISPATCH", objc,objv); #endif #ifdef OBJDELETION_TRACE method = objv[1]; if (method == XOTclGlobalObjects[XOTE_CLEANUP] || method == XOTclGlobalObjects[XOTE_DESTROY]) { fprintf(stderr, "%s->%s id=%p destroyCalled=%d\n", ObjStr(cmdName), methodName, obj, (obj->flags & XOTCL_DESTROY_CALLED)); } #endif objflags = obj->flags; /* avoid stalling */ INCR_REF_COUNT(cmdName); if (!(objflags & XOTCL_FILTER_ORDER_VALID)) FilterComputeDefined(in, obj); if (!(objflags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); callMethod = methodName; #ifdef AUTOVARS if (!isNext) { #endif /* Only start new filter chain, if (a) filters are defined and (b) the toplevel csc entry is not an filter on self */ if (RUNTIME_STATE(in)->doFilters && !(flags & XOTCL_CM_NO_FILTERS) && !cs->guardCount && ((obj->flags & XOTCL_FILTER_ORDER_DEFINED_AND_VALID) == XOTCL_FILTER_ORDER_DEFINED_AND_VALID)) { XOTclObject *self = GetSelfObj(in); if (obj != self || cs->top->frameType != XOTCL_CSC_TYPE_ACTIVE_FILTER) { filterStackPushed = FilterStackPush(in, obj, objv[1]); cmd = FilterSearchProc(in, obj, &proc, &cp, &obj->filterStack->currentCmdPtr,&cl); if (cmd) { /* 'proc' and the other output vars are set as well */ frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; callMethod = (char *)Tcl_GetCommandName(in, cmd); } else { FilterStackPop(obj); filterStackPushed = 0; } } } /* check if a mixin is to be called. don't use mixins on next method calls, since normally it is not intercepted (it is used as a primitive command). don't use mixins on init calls, since init is invoked on mixins during mixin registration (in XOTclOMixinMethod) */ if ((obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) == XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { mixinStackPushed = MixinStackPush(obj); if (frameType != XOTCL_CSC_TYPE_ACTIVE_FILTER) { cmd = MixinSearchProc(in, obj, methodName, &cl, &proc, &cp, &obj->mixinStack->currentCmdPtr); if (cmd) { /* 'proc' and the other output vars are set as well */ frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; } else { /* the else branch could be deleted */ MixinStackPop(obj); mixinStackPushed = 0; } } } #ifdef AUTOVARS } #endif /* if no filter/mixin is found => do ordinary method lookup */ if (proc == 0) { /* fprintf(stderr,"ordinary lookup for obj %p method %s nsPtr %p\n", obj, methodName, obj->nsPtr);*/ /*if (obj->nsPtr && !(obj->flags & XOTCL_NS_DESTROYED))*/ if (obj->nsPtr) cmd = FindMethod(methodName, obj->nsPtr); /*fprintf(stderr,"findMethod for proc '%s' in %p returned %p\n",methodName, obj->nsPtr, cmd);*/ if (cmd == NULL) cl = SearchCMethod(obj->cl, methodName, &cmd); if (cmd) { proc = Tcl_Command_objProc(cmd); cp = Tcl_Command_objClientData(cmd); } else { assert(cp == 0); } } if (proc) { result = TCL_OK; if ((result = DoCallProcCheck(cp, cd, in, objc, objv, cmd, obj, cl, callMethod, frameType, 0 /* fromNext */)) == TCL_ERROR) { result = XOTclErrInProc(in, cmdName, cl ? cl->object.cmdName : NULL, callMethod); } unknown = RUNTIME_STATE(in)->unknown; } else { unknown = 1; } if (result == TCL_OK) { /*fprintf(stderr,"after doCallProcCheck unknown == %d\n",unknown);*/ if (unknown) { if (XOTclObjectIsClass(obj) && (flags & XOTCL_CM_NO_UNKNOWN)) { return XOTclVarErrMsg(in, ObjStr(objv[0]), ": unable to dispatch method '", callMethod, "'", (char *) NULL); } else if (objv[1] != XOTclGlobalObjects[XOTE_UNKNOWN]) { /* * back off and try unknown; */ XOTclObject *obj = (XOTclObject*)cd; ALLOC_ON_STACK(Tcl_Obj*,objc+1, tov); /* fprintf(stderr,"calling unknown for %s %s, flgs=%02x,%02x isClass=%d %p %s\n", ObjStr(obj->cmdName), ObjStr(objv[1]), flags, XOTCL_CM_NO_UNKNOWN, XOTclObjectIsClass(obj), obj, ObjStr(obj->cmdName)); */ tov[0] = obj->cmdName; tov[1] = XOTclGlobalObjects[XOTE_UNKNOWN]; if (objc>1) memcpy(tov+2, objv+1, sizeof(Tcl_Obj *)*(objc-1)); /* fprintf(stderr,"?? %s unknown %s\n",ObjStr(obj->cmdName), ObjStr(tov[2])); */ result = DoDispatch(cd, in, objc+1, tov, flags | XOTCL_CM_NO_UNKNOWN); FREE_ON_STACK(tov); } else { /* unknown failed */ return XOTclVarErrMsg(in, ObjStr(objv[0]), ": unable to dispatch method '", ObjStr(objv[2]), "'", (char *) NULL); } } } /* be sure to reset unknown flag */ if (unknown) RUNTIME_STATE(in)->unknown = 0; #ifdef DISPATCH_TRACE printExit(in,"DISPATCH", objc,objv, result); fprintf(stderr,"obj %p mixinStackPushed %d mixinStack %p\n", obj, mixinStackPushed, obj->mixinStack); #endif /*if (!rst->callIsDestroy ) fprintf(stderr, "obj freed? %p destroy %p self %p %s %d [%d] reference=%d,%d\n",obj, cs->top->destroyedCmd, cs->top->self, ObjStr(objv[1]), rst->callIsDestroy, cs->top->callType & XOTCL_CSC_CALL_IS_DESTROY, !rst->callIsDestroy, isdestroy);*/ if (!rst->callIsDestroy) { /*!(obj->flags & XOTCL_DESTROY_CALLED)) {*/ if (mixinStackPushed && obj->mixinStack) MixinStackPop(obj); if (filterStackPushed && obj->filterStack) FilterStackPop(obj); } DECR_REF_COUNT(cmdName); /* must be after last dereferencing of obj */ return result; } static int ObjDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], int flags) { int result; #ifdef STACK_TRACE XOTclStackDump(in); #endif #ifdef CALLSTACK_TRACE XOTclCallStackDump(in); #endif if (objc == 1) { Tcl_Obj *tov[2]; tov[0] = objv[0]; tov[1] = XOTclGlobalObjects[XOTE_DEFAULTMETHOD]; result = DoDispatch(cd, in, 2, tov, flags); } else { /* normal dispatch */ result = DoDispatch(cd, in, objc, objv, flags); } return result; } #ifdef XOTCL_BYTECODE int XOTclDirectSelfDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { int result; #ifdef XOTCLOBJ_TRACE XOTclObject *obj; #endif objTrace("BEFORE SELF DISPATCH", obj); result = ObjDispatch((ClientData)GetSelfObj(in), in, objc, objv, 0); objTrace("AFTER SELF DISPATCH", obj); return result; } #endif int XOTclObjDispatch(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { return ObjDispatch(cd, in, objc, objv, 0); } /* * Non Positional Args */ static void NonposArgsDeleteHashEntry(Tcl_HashEntry* hPtr) { XOTclNonposArgs* nonposArg = (XOTclNonposArgs*) Tcl_GetHashValue(hPtr); if (nonposArg) { DECR_REF_COUNT(nonposArg->nonposArgs); DECR_REF_COUNT(nonposArg->ordinaryArgs); MEM_COUNT_FREE("nonposArg",nonposArg); ckfree((char *) nonposArg); Tcl_DeleteHashEntry(hPtr); } } static Tcl_HashTable* NonposArgsCreateTable() { Tcl_HashTable* nonposArgsTable = (Tcl_HashTable *) ckalloc(sizeof(Tcl_HashTable)); MEM_COUNT_ALLOC("Tcl_HashTable",nonposArgsTable); Tcl_InitHashTable(nonposArgsTable, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable",nonposArgsTable); return nonposArgsTable; } static void NonposArgsFreeTable(Tcl_HashTable* nonposArgsTable) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = nonposArgsTable ? Tcl_FirstHashEntry(nonposArgsTable, &hSrch) : 0; for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { NonposArgsDeleteHashEntry(hPtr); } } static XOTclNonposArgs* NonposArgsGet(Tcl_HashTable* nonposArgsTable, char * methodName) { Tcl_HashEntry* hPtr; if (nonposArgsTable && ((hPtr = Tcl_FindHashEntry(nonposArgsTable, methodName)))) { return (XOTclNonposArgs*) Tcl_GetHashValue(hPtr); } return NULL; } static Tcl_Obj* NonposArgsFormat(Tcl_Interp *in, Tcl_Obj* nonposArgsData) { int r1, npalistc, npac, checkc, i, j, first; Tcl_Obj **npalistv, **npav, **checkv, *list = Tcl_NewListObj(0, NULL), *innerlist, *nameStringObj; /*fprintf(stderr, "nonposargsformat '%s'\n", ObjStr(nonposArgsData));*/ r1 = Tcl_ListObjGetElements(in, nonposArgsData, &npalistc, &npalistv); if (r1 == TCL_OK) { for (i=0; i < npalistc; i++) { r1 = Tcl_ListObjGetElements(in, npalistv[i], &npac, &npav); if (r1 == TCL_OK) { nameStringObj = Tcl_NewStringObj("-", 1); Tcl_AppendStringsToObj(nameStringObj, ObjStr(npav[0]), (char *) NULL); if (npac > 1 && *(ObjStr(npav[1])) != '\0') { first = 1; r1 = Tcl_ListObjGetElements(in, npav[1], &checkc, &checkv); if (r1 == TCL_OK) { for (j=0; j < checkc; j++) { if (first) { Tcl_AppendToObj(nameStringObj,":",1); first = 0; } else { Tcl_AppendToObj(nameStringObj,",",1); } Tcl_AppendToObj(nameStringObj, ObjStr(checkv[j]), -1); } } } /* fprintf(stderr, "nonposargsformat namestring '%s'\n", ObjStr(nameStringObj));*/ #if 1 innerlist = Tcl_NewListObj(0, NULL); Tcl_ListObjAppendElement(in, innerlist, nameStringObj); if (npac > 2) { Tcl_ListObjAppendElement(in, innerlist, npav[2]); } #else { Tcl_DString ds, *dsPtr = &ds; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, ObjStr(nameStringObj), -1); if (npac > 2) { Tcl_DStringAppendElement(dsPtr, ObjStr(npav[2])); } innerlist = Tcl_NewStringObj(Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr)); DSTRING_FREE(dsPtr); } #endif Tcl_ListObjAppendElement(in, list, innerlist); } } } return list; } /* * Proc-Creation */ static Tcl_Obj* addPrefixToBody(Tcl_Obj *body, int nonposArgs) { Tcl_Obj* resultBody; resultBody = Tcl_NewStringObj("", 0); INCR_REF_COUNT(resultBody); Tcl_AppendStringsToObj(resultBody, "::xotcl::initProcNS\n", (char *) NULL); if (nonposArgs) { Tcl_AppendStringsToObj(resultBody, "::xotcl::interpretNonpositionalArgs $args\n", (char *) NULL); } Tcl_AppendStringsToObj(resultBody, ObjStr(body), (char *) NULL); return resultBody; } static int parseNonposArgs(Tcl_Interp *in, char *procName, Tcl_Obj *npArgs, Tcl_Obj *ordinaryArgs, Tcl_HashTable **nonposArgsTable, int *haveNonposArgs) { int rc, nonposArgsDefc, npac; Tcl_Obj **nonposArgsDefv; rc = Tcl_ListObjGetElements(in, npArgs, &nonposArgsDefc, &nonposArgsDefv); if (rc != TCL_OK) { return XOTclVarErrMsg(in, "cannot break down non-positional args: ", ObjStr(npArgs), (char *) NULL); } if (nonposArgsDefc > 0) { int start, end, length, i, j, nw = 0; char *arg; Tcl_Obj *npaObj, **npav, *nonposArgsObj = Tcl_NewListObj(0, NULL); Tcl_HashEntry *hPtr; INCR_REF_COUNT(nonposArgsObj); for (i=0; i < nonposArgsDefc; i++) { rc = Tcl_ListObjGetElements(in, nonposArgsDefv[i], &npac, &npav); if (rc == TCL_ERROR || npac < 1 || npac > 2) { DECR_REF_COUNT(nonposArgsObj); return XOTclVarErrMsg(in, "wrong # of elements in non-positional args ", "(should be 1 or 2 list elements): ", ObjStr(npArgs), (char *) NULL); } npaObj = Tcl_NewListObj(0, NULL); arg = ObjStr(npav[0]); if (arg[0] != '-') { DECR_REF_COUNT(npaObj); DECR_REF_COUNT(nonposArgsObj); return XOTclVarErrMsg(in, "non-positional args does not start with '-': ", arg, " in: ", ObjStr(npArgs), (char *) NULL); } length = strlen(arg); for (j=0; j0 && isspace((int)arg[end-1]); end--); Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(arg+start, end-start)); l++; start = l; while(start0 && isspace((int)arg[end-1]); end--); Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(arg+start, end-start)); /* append the whole thing to the list */ Tcl_ListObjAppendElement(in, npaObj, list); } else { Tcl_ListObjAppendElement(in, npaObj, Tcl_NewStringObj(arg+1, length)); Tcl_ListObjAppendElement(in, npaObj, Tcl_NewStringObj("", 0)); } if (npac == 2) { Tcl_ListObjAppendElement(in, npaObj, npav[1]); } Tcl_ListObjAppendElement(in, nonposArgsObj, npaObj); *haveNonposArgs = 1; } if (*haveNonposArgs) { XOTclNonposArgs* nonposArg; if (*nonposArgsTable == 0) { *nonposArgsTable = NonposArgsCreateTable(); } hPtr = Tcl_CreateHashEntry(*nonposArgsTable, procName, &nw); assert(nw); MEM_COUNT_ALLOC("nonposArg",nonposArg); nonposArg = (XOTclNonposArgs*)ckalloc(sizeof(XOTclNonposArgs)); nonposArg->nonposArgs = nonposArgsObj; nonposArg->ordinaryArgs = ordinaryArgs; INCR_REF_COUNT(ordinaryArgs); Tcl_SetHashValue(hPtr, (ClientData)nonposArg); } else { /* for strange reasons, we did not find nonpos-args, although we have definitions */ DECR_REF_COUNT(nonposArgsObj); } } return TCL_OK; } static int MakeProc(Tcl_Namespace *ns, XOTclAssertionStore *aStore, Tcl_HashTable **nonposArgsTable, Tcl_Interp *in, int objc, Tcl_Obj *objv[], XOTclObject *obj) { int result, incr, haveNonposArgs=0; TclCallFrame frame, *framePtr = &frame; Tcl_Obj *ov[4]; Tcl_HashEntry* hPtr = NULL; char *procName = ObjStr(objv[1]); if (*nonposArgsTable && (hPtr = Tcl_FindHashEntry(*nonposArgsTable, procName))) { NonposArgsDeleteHashEntry(hPtr); } ov[0] = objv[0]; ov[1] = objv[1]; if (objc == 5 || objc == 7) { if ((result = parseNonposArgs(in, procName, objv[2], objv[3], nonposArgsTable, &haveNonposArgs)) != TCL_OK) return result; if (haveNonposArgs) { ov[2] = XOTclGlobalObjects[XOTE_ARGS]; ov[3] = addPrefixToBody(objv[4], 1); } else { /* no nonpos arguments */ ov[2] = objv[3]; ov[3] = addPrefixToBody(objv[4], 0); } } else { #if !defined(XOTCL_DISJOINT_ARGLISTS) int argsc, i; Tcl_Obj **argsv; /* see, if we have nonposArgs in the ordinary argument list */ result = Tcl_ListObjGetElements(in, objv[2], &argsc, &argsv); if (result != TCL_OK) { return XOTclVarErrMsg(in, "cannot break args into list: ", ObjStr(objv[2]), (char *) NULL); } for (i=0; i 0) { arg = ObjStr(npav[0]); /* fprintf(stderr, "*** argparse1 arg='%s' rc=%d\n",arg,rc);*/ if (*arg == '-') { haveNonposArgs = 1; continue; } } break; } if (haveNonposArgs) { int nrOrdinaryArgs = argsc - i; Tcl_Obj *ordinaryArgs = Tcl_NewListObj(nrOrdinaryArgs, &argsv[i]); Tcl_Obj *nonposArgs = Tcl_NewListObj(i, &argsv[0]); INCR_REF_COUNT(ordinaryArgs); INCR_REF_COUNT(nonposArgs); /* fprintf(stderr, "nonpos <%s> ordinary <%s>\n", ObjStr(nonposArgs),ObjStr(ordinaryArgs));*/ result = parseNonposArgs(in, procName, nonposArgs, ordinaryArgs, nonposArgsTable, &haveNonposArgs); DECR_REF_COUNT(ordinaryArgs); DECR_REF_COUNT(nonposArgs); if (result != TCL_OK) return result; } #endif if (haveNonposArgs) { ov[2] = XOTclGlobalObjects[XOTE_ARGS]; ov[3] = addPrefixToBody(objv[3], 1); } else { /* no nonpos arguments */ ov[2] = objv[2]; ov[3] = addPrefixToBody(objv[3], 0); } } #ifdef AUTOVARS { char *p, *body; body = ObjStr(ov[3]); if ((p = strstr(body, "self")) && p != body && *(p-1) != '[') Tcl_AppendStringsToObj(ov[3], "::set self [self]\n", (char *) NULL); if (strstr(body, "proc")) Tcl_AppendStringsToObj(ov[3], "::set proc [self proc]\n", (char *) NULL); if (strstr(body, "class")) Tcl_AppendStringsToObj(ov[3], "::set class [self class]\n", (char *) NULL); } #endif Tcl_PushCallFrame(in,(Tcl_CallFrame *)framePtr,ns,0); result = Tcl_ProcObjCmd(0, in, 4, ov) != TCL_OK; #if defined(NAMESPACEINSTPROCS) { Proc *procPtr = TclFindProc((Interp *)in, procName); /*fprintf(stderr,"proc=%p cmd=%p ns='%s' objns=%s\n",procPtr,procPtr->cmdPtr, procPtr->cmdPtr->nsPtr->fullName,cmd->nsPtr->fullName);*/ /*** patch the command ****/ if (procPtr) { /* procPtr->cmdPtr = (Command *)obj->id; OLD*/ procPtr->cmdPtr->nsPtr = ((Command *)obj->id)->nsPtr; } } #endif Tcl_PopCallFrame(in); if (objc == 6 || objc == 7) { incr = (objc == 6) ? 0:1; AssertionAddProc(in, ObjStr(objv[1]), aStore, objv[4+incr], objv[5+incr]); } DECR_REF_COUNT(ov[3]); return result; } /* * List-Functions for Info */ static int ListInfo(Tcl_Interp *in, int isclass) { Tcl_ResetResult(in); Tcl_AppendElement(in, "vars"); Tcl_AppendElement(in, "body"); Tcl_AppendElement(in, "default"); Tcl_AppendElement(in, "args"); Tcl_AppendElement(in, "procs"); Tcl_AppendElement(in, "commands"); Tcl_AppendElement(in, "class"); Tcl_AppendElement(in, "children"); Tcl_AppendElement(in, "filter"); Tcl_AppendElement(in, "filterguard"); Tcl_AppendElement(in, "forward"); Tcl_AppendElement(in, "info"); Tcl_AppendElement(in, "invar"); Tcl_AppendElement(in, "mixin"); Tcl_AppendElement(in, "methods"); Tcl_AppendElement(in, "parent"); Tcl_AppendElement(in, "pre"); Tcl_AppendElement(in, "post"); Tcl_AppendElement(in, "precedence"); if (isclass) { Tcl_AppendElement(in, "superclass"); Tcl_AppendElement(in, "subclass"); Tcl_AppendElement(in, "heritage"); Tcl_AppendElement(in, "instances"); Tcl_AppendElement(in, "instcommands"); Tcl_AppendElement(in, "instprocs"); Tcl_AppendElement(in, "instdefault"); Tcl_AppendElement(in, "instbody"); Tcl_AppendElement(in, "instmixin"); Tcl_AppendElement(in, "instforward"); Tcl_AppendElement(in, "classchildren"); Tcl_AppendElement(in, "classparent"); Tcl_AppendElement(in, "instfilter"); Tcl_AppendElement(in, "instfilterguard"); Tcl_AppendElement(in, "instinvar"); Tcl_AppendElement(in, "instpre"); Tcl_AppendElement(in, "instpost"); Tcl_AppendElement(in, "parameter"); } return TCL_OK; } XOTCLINLINE static int noMetaChars(char *pattern) { register char c, *p = pattern; assert(pattern); for (c=*p; c; c = *++p) { if (c == '*' || c == '[') { return 0; } } return 1; } static int ListKeys(Tcl_Interp *in, Tcl_HashTable *table, char *pattern) { Tcl_HashEntry* hPtr; char *key; if (pattern && noMetaChars(pattern)) { hPtr = table ? Tcl_FindHashEntry(table, pattern) : 0; if (hPtr) { key = Tcl_GetHashKey(table, hPtr); Tcl_SetResult(in, key, TCL_VOLATILE); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; hPtr = table ? Tcl_FirstHashEntry(table, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { key = Tcl_GetHashKey(table, hPtr); if (!pattern || Tcl_StringMatch(key, pattern)) { Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj(key,-1)); } } Tcl_SetObjResult(in, list); } return TCL_OK; } #if !defined(PRE85) || FORWARD_COMPATIBLE static int ListVarKeys(Tcl_Interp *in, Tcl_HashTable *tablePtr, char *pattern) { Tcl_HashEntry* hPtr; if (pattern && noMetaChars(pattern)) { Tcl_Obj *patternObj = Tcl_NewStringObj(pattern, -1); INCR_REF_COUNT(patternObj); hPtr = tablePtr ? Tcl_CreateHashEntry(tablePtr, (char *)patternObj, NULL) : 0; if (hPtr) { Var *val = VarHashGetValue(hPtr); Tcl_SetObjResult(in, VarHashGetKey(val)); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } DECR_REF_COUNT(patternObj); } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; hPtr = tablePtr ? Tcl_FirstHashEntry(tablePtr, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { Var *val = VarHashGetValue(hPtr); Tcl_Obj *key = VarHashGetKey(val); if (!pattern || Tcl_StringMatch(ObjStr(key), pattern)) { Tcl_ListObjAppendElement(in, list, key); } } Tcl_SetObjResult(in, list); } return TCL_OK; } #endif static int ListVars(Tcl_Interp *in, XOTclObject *obj, char *pattern) { Tcl_Obj *varlist, *okList, *element; int i, length; TclVarHashTable *varTable = obj->nsPtr ? Tcl_Namespace_varTable(obj->nsPtr) : obj->varTable; #if defined(PRE85) # if FORWARD_COMPATIBLE if (forwardCompatibleMode) { ListVarKeys(in, VarHashTable(varTable), pattern); } else { ListKeys(in, varTable, pattern); } # else ListKeys(in, varTable, pattern); # endif #else ListVarKeys(in, VarHashTable(varTable), pattern); #endif varlist = Tcl_GetObjResult(in); Tcl_ListObjLength(in, varlist, &length); okList = Tcl_NewListObj(0, NULL); for (i=0; icmdName); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; hPtr = table ? Tcl_FirstHashEntry(table, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject*)Tcl_GetHashKey(table, hPtr); if (!pattern || Tcl_StringMatch(ObjStr(obj->cmdName), pattern)) { Tcl_ListObjAppendElement(in, list, obj->cmdName); } } Tcl_SetObjResult(in, list); } return TCL_OK; } static int ListMethodKeys(Tcl_Interp *in, Tcl_HashTable *table, char *pattern, int noProcs, int noCmds, int noDups, int onlyForwarder) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = table ? Tcl_FirstHashEntry(table, &hSrch) : 0; for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(table, hPtr); Tcl_Command cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); Tcl_ObjCmdProc* proc = Tcl_Command_objProc(cmd); if (pattern && !Tcl_StringMatch(key, pattern)) continue; if (noCmds && proc != RUNTIME_STATE(in)->objInterpProc) continue; if (noProcs && proc == RUNTIME_STATE(in)->objInterpProc) continue; if (onlyForwarder && proc != XOTclForwardMethod) continue; /* XOTclObjscopedMethod ??? */ if (noDups) { int listc, i; Tcl_Obj **listv; int result = Tcl_ListObjGetElements(in, Tcl_GetObjResult(in), &listc, &listv); size_t keylen = strlen(key); if (result == TCL_OK) { int found = 0; for (i=0; iprefix) { Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj("-methodprefix",-1)); Tcl_ListObjAppendElement(in, list, tcd->prefix); } if (tcd->subcommands) { Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj("-default",-1)); Tcl_ListObjAppendElement(in, list, tcd->subcommands); } if (tcd->objscope) { Tcl_ListObjAppendElement(in, list, Tcl_NewStringObj("-objscope",-1)); } Tcl_ListObjAppendElement(in, list, tcd->cmdName); if (tcd->args) { Tcl_Obj **args; int nrArgs, i; Tcl_ListObjGetElements(in, tcd->args, &nrArgs, &args); for (i=0; insPtr) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(obj->nsPtr); ListMethodKeys(in, cmdTable, pattern, noProcs, noCmds, 0, 0); } if (!noMixins) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml = obj->mixinOrder; XOTclClass *mixin; while (ml) { int guardOk = TCL_OK; mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (inContext) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; if (!cs->guardCount) { guardOk = GuardCall(obj, 0, 0, in, ml->clientData, 1); } } if (mixin && guardOk == TCL_OK) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(mixin->nsPtr); ListMethodKeys(in, cmdTable, pattern, noProcs, noCmds, 1, 0); } ml = ml->next; } } } /* append per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl = pl->next) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(pl->cl->nsPtr); ListMethodKeys(in, cmdTable, pattern, noProcs, noCmds, 1, 0); } return TCL_OK; } static int XOTclCInfoMethod(ClientData, Tcl_Interp *, int, Tcl_Obj *CONST v[]); static int ListClass(Tcl_Interp *in, XOTclObject *obj, char *pattern, int objc, Tcl_Obj *CONST objv[]) { if (pattern == 0) { Tcl_SetObjResult(in, obj->cl->object.cmdName); return TCL_OK; } else { int result; ALLOC_ON_STACK(Tcl_Obj*,objc, ov); memcpy(ov, objv, sizeof(Tcl_Obj *)*objc); ov[1] = Tcl_NewStringObj("superclass", 10); INCR_REF_COUNT(ov[1]); result = XOTclCInfoMethod((ClientData)obj->cl, in, objc, ov); DECR_REF_COUNT(ov[1]); FREE_ON_STACK(ov); return result; } } static int ListSuperclasses(Tcl_Interp *in, XOTclClass *cl, char *pattern) { if (pattern == 0) { XOTclClasses* sl = cl->super; XOTclClasses* sc = 0; /* * reverse the list to obtain presentation order */ Tcl_ResetResult(in); while (sc != sl) { XOTclClasses* nl = sl; while (nl->next != sc) nl = nl->next; Tcl_AppendElement(in, className(nl->cl)); sc = nl; } } else { XOTclClass *isc = XOTclpGetClass(in, pattern); XOTclClasses* pl; if (isc == 0) return XOTclErrBadVal(in, "info superclass", "a class", pattern); /* * search precedence to see if we're related or not */ for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->next) { if (pl->cl == isc) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); break; } } if (pl == 0) Tcl_SetIntObj(Tcl_GetObjResult(in), 0); } return TCL_OK; } static int ListSubclasses(Tcl_Interp *in, XOTclClass *cl, char *pattern) { if (pattern == 0) { XOTclClasses* sl = cl->sub; XOTclClasses* sc = 0; /* * order unimportant */ Tcl_ResetResult(in); for (sc = sl; sc != 0; sc = sc->next) Tcl_AppendElement(in, className(sc->cl)); } else { XOTclClass *isc = XOTclpGetClass(in, pattern); XOTclClasses* pl; XOTclClasses* saved; if (isc == 0) return XOTclErrBadVal(in, "info subclass", "a class", pattern); saved = cl->order; cl->order = 0; /* * search precedence to see if we're related or not */ for (pl = ComputeOrder(cl, cl->order, Sub); pl; pl = pl->next) { if (pl->cl == isc) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); break; } } if (pl == 0) Tcl_SetIntObj(Tcl_GetObjResult(in), 0); XOTclFreeClasses(cl->order); cl->order = saved; } return TCL_OK; } static int ListHeritage(Tcl_Interp *in, XOTclClass *cl, char *pattern) { XOTclClasses* pl = ComputeOrder(cl, cl->order, Super); Tcl_ResetResult(in); if (pl) pl=pl->next; for (; pl != 0; pl = pl->next) { char *name = className(pl->cl); if (pattern && !Tcl_StringMatch(name, pattern)) continue; Tcl_AppendElement(in, name); } return TCL_OK; } static int ListPrecedence(Tcl_Interp *in, XOTclObject *obj, char *pattern) { XOTclClasses* pl; Tcl_ResetResult(in); if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml = obj->mixinOrder; while (ml) { XOTclClass *mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); char *name = className(mixin); if (pattern && !Tcl_StringMatch(name, pattern)) continue; Tcl_AppendElement(in, name); ml = ml->next; } } pl = ComputeOrder(obj->cl, obj->cl->order, Super); for (; pl != 0; pl = pl->next) { char *name = className(pl->cl); if (pattern && !Tcl_StringMatch(name, pattern)) continue; Tcl_AppendElement(in, name); } return TCL_OK; } static Proc* FindProc(Tcl_Interp *in, Tcl_HashTable *table, char *name) { Tcl_HashEntry* hPtr = table ? Tcl_FindHashEntry(table, name) : 0; if (hPtr) { Tcl_Command cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); Tcl_ObjCmdProc *proc = Tcl_Command_objProc(cmd); if (proc == RUNTIME_STATE(in)->objInterpProc) return (Proc*) Tcl_Command_objClientData(cmd); #if USE_INTERP_PROC else if ((Tcl_CmdProc*)proc == RUNTIME_STATE(in)->interpProc) return (Proc*) Tcl_Command_clientData(cmd); #endif } return 0; } static int ListProcArgs(Tcl_Interp *in, Tcl_HashTable *table, char *name) { Proc* proc = FindProc(in, table, name); if (proc) { CompiledLocal *args = proc->firstLocalPtr; Tcl_ResetResult(in); for (;args != NULL; args = args->nextPtr) { if (TclIsCompiledLocalArgument(args)) Tcl_AppendElement(in, args->name); } return TCL_OK; } return XOTclErrBadVal(in, "info args", "a tcl method name", name); } static int ListArgsFromOrdinaryArgs(Tcl_Interp *in, XOTclNonposArgs* nonposArgs) { int i, rc, ordinaryArgsDefc, defaultValueObjc; Tcl_Obj **ordinaryArgsDefv, **defaultValueObjv, *ordinaryArg, *argList = Tcl_NewListObj(0, NULL); rc = Tcl_ListObjGetElements(in, nonposArgs->ordinaryArgs, &ordinaryArgsDefc, &ordinaryArgsDefv); if (rc != TCL_OK) return TCL_ERROR; for (i=0; i < ordinaryArgsDefc; i++) { ordinaryArg = ordinaryArgsDefv[i]; rc = Tcl_ListObjGetElements(in, ordinaryArg, &defaultValueObjc, &defaultValueObjv); if (rc == TCL_OK && defaultValueObjc == 2) { ordinaryArg = defaultValueObjv[0]; } Tcl_ListObjAppendElement(in, argList, ordinaryArg); } Tcl_SetObjResult(in, argList); return TCL_OK; } static int GetProcDefault(Tcl_Interp *in, Tcl_HashTable *table, char *name, char *arg, Tcl_Obj **resultObj) { Proc* proc = FindProc(in, table, name); *resultObj = 0; if (proc) { CompiledLocal *ap; for (ap = proc->firstLocalPtr; ap != 0; ap = ap->nextPtr) { if (!TclIsCompiledLocalArgument(ap)) continue; if (strcmp(arg, ap->name) != 0) continue; if (ap->defValuePtr != NULL) { *resultObj = ap->defValuePtr; return TCL_OK; } return TCL_OK; } } return TCL_ERROR; } static int SetProcDefault(Tcl_Interp *in, Tcl_Obj *var, Tcl_Obj* defVal) { int result = TCL_OK; callFrameContext ctx = {0}; CallStackUseActiveFrames(in,&ctx); if (defVal != 0) { if (Tcl_ObjSetVar2(in, var, NULL, defVal, 0) != NULL) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); } else { result = TCL_ERROR; } } else { if (Tcl_ObjSetVar2(in, var, NULL, XOTclGlobalObjects[XOTE_EMPTY], 0) != NULL) { Tcl_SetIntObj(Tcl_GetObjResult(in), 0); } else { result = TCL_ERROR; } } CallStackRestoreSavedFrames(in, &ctx); if (result == TCL_ERROR) { XOTclVarErrMsg(in, "couldn't store default value in variable '", var, "'", (char *) NULL); } return result; } static int ListProcDefault(Tcl_Interp *in, Tcl_HashTable *table, char *name, char *arg, Tcl_Obj *var) { Tcl_Obj *defVal; int result; if (GetProcDefault(in, table, name, arg, &defVal) == TCL_OK) { result = SetProcDefault(in, var, defVal); } else { XOTclVarErrMsg(in, "method '", name, "' doesn't exist or doesn't have an argument '", arg, "'", (char *) NULL); result = TCL_ERROR; } return result; } static int ListDefaultFromOrdinaryArgs(Tcl_Interp *in, char *procName, XOTclNonposArgs* nonposArgs, char *arg, Tcl_Obj *var) { int i, rc, ordinaryArgsDefc, defaultValueObjc; Tcl_Obj **ordinaryArgsDefv, **defaultValueObjv, *ordinaryArg; rc = Tcl_ListObjGetElements(in, nonposArgs->ordinaryArgs, &ordinaryArgsDefc, &ordinaryArgsDefv); if (rc != TCL_OK) return TCL_ERROR; for (i=0; i < ordinaryArgsDefc; i++) { ordinaryArg = ordinaryArgsDefv[i]; rc = Tcl_ListObjGetElements(in, ordinaryArg, &defaultValueObjc, &defaultValueObjv); if (rc == TCL_OK && !strcmp(arg, ObjStr(defaultValueObjv[0]))) { return SetProcDefault(in, var, defaultValueObjc == 2 ? defaultValueObjv[1] : NULL); } } XOTclVarErrMsg(in, "method '", procName, "' doesn't have an argument '", arg, "'", (char *) NULL); return TCL_ERROR; } static char * StripBodyPrefix(char *body) { if (strncmp(body, "::xotcl::initProcNS\n",20) == 0) body+=20; if (strncmp(body, "::xotcl::interpretNonpositionalArgs $args\n",42) == 0) body+=42; return body; } static int ListProcBody(Tcl_Interp *in, Tcl_HashTable *table, char *name) { Proc* proc = FindProc(in, table, name); if (proc) { char *body = ObjStr(proc->bodyPtr); Tcl_SetObjResult(in, Tcl_NewStringObj(StripBodyPrefix(body), -1)); return TCL_OK; } return XOTclErrBadVal(in, "info body", "a tcl method name", name); } static int ListChildren(Tcl_Interp *in, XOTclObject *obj, char *pattern, int classesOnly) { XOTclObject *childobj; Tcl_HashTable *cmdTable; XOTcl_FrameDecls; if (!obj->nsPtr) return TCL_OK; cmdTable = Tcl_Namespace_cmdTable(obj->nsPtr); if (pattern && noMetaChars(pattern)) { XOTcl_PushFrame(in, obj); if ((childobj = XOTclpGetObject(in, pattern)) && (!classesOnly || XOTclObjectIsClass(childobj)) && (childobj->id && Tcl_Command_nsPtr(childobj->id) == obj->nsPtr) /* true children */ ) { Tcl_SetObjResult(in, childobj->cmdName); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } XOTcl_PopFrame(in,obj); } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); char *key; XOTcl_PushFrame(in, obj); for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { key = Tcl_GetHashKey(cmdTable, hPtr); if (!pattern || Tcl_StringMatch(key, pattern)) { if ((childobj = XOTclpGetObject(in, key)) && (!classesOnly || XOTclObjectIsClass(childobj)) && (childobj->id && Tcl_Command_nsPtr(childobj->id) == obj->nsPtr) /* true children */ ) { Tcl_ListObjAppendElement(in, list, childobj->cmdName); } } } XOTcl_PopFrame(in,obj); Tcl_SetObjResult(in, list); } return TCL_OK; } static int ListParent(Tcl_Interp *in, XOTclObject *obj) { if (obj->id) { Tcl_SetResult(in, NSCmdFullName(obj->id), TCL_VOLATILE); } return TCL_OK; } static XOTclClass* FindCalledClass(Tcl_Interp *in, XOTclObject *obj) { char *methodName = 0; XOTclClass *cl; Tcl_Command cmd = NULL; XOTclCallStackContent *csc = CallStackGetTopFrame(in); if (csc->frameType == XOTCL_CSC_TYPE_PLAIN) return GetSelfClass(in); if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) methodName = ObjStr(csc->filterStackEntry->calledProc); else if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN && obj->mixinStack) methodName = (char *) GetSelfProc(in); if (!methodName) methodName = ""; if (obj->nsPtr) cmd = FindMethod(methodName, obj->nsPtr); if (cmd) { cl = 0; } else { cl = SearchCMethod(obj->cl, methodName, &cmd); } return cl; } /* * Next Primitive Handling */ XOTCLINLINE static void NextSearchMethod(XOTclObject *obj, Tcl_Interp *in, XOTclCallStackContent *csc, XOTclClass **cl, char **method, Tcl_ObjCmdProc **proc, Tcl_Command *cmd, ClientData *cp, int* isMixinEntry, int* isFilterEntry, int* endOfFilterChain, Tcl_Command* currentCmd) { XOTclClasses *pl = 0; int endOfChain = 0; *endOfFilterChain = 0; /* * Next in filters */ /*assert(obj->flags & XOTCL_FILTER_ORDER_VALID); *** strange, worked before ****/ FilterComputeDefined(in, obj); if ((obj->flags & XOTCL_FILTER_ORDER_VALID) && obj->filterStack && obj->filterStack->currentCmdPtr) { *cmd = FilterSearchProc(in, obj, proc, cp, currentCmd,cl); /*fprintf(stderr,"EndOfChain? proc=%p, cmd=%p\n",*proc,*cmd);*/ /* XOTclCallStackDump(in); XOTclStackDump(in);*/ if (*proc == 0) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { /* reset the information to the values of method, cl to the values they had before calling the filters */ *method = ObjStr(obj->filterStack->calledProc); endOfChain = 1; *endOfFilterChain = 1; *cl = 0; /*fprintf(stderr,"EndOfChain resetting cl\n");*/ } } else { *method = (char *) Tcl_GetCommandName(in, *cmd); *isFilterEntry = 1; return; } } /* * Next in Mixins */ assert(obj->flags & XOTCL_MIXIN_ORDER_VALID); /* otherwise: MixinComputeDefined(in, obj); */ /*fprintf(stderr,"nextsearch: mixinorder valid %d stack=%p\n", obj->flags & XOTCL_MIXIN_ORDER_VALID, obj->mixinStack);*/ if ((obj->flags & XOTCL_MIXIN_ORDER_VALID) && obj->mixinStack) { *cmd = MixinSearchProc(in, obj, *method, cl, proc, cp, currentCmd); /*fprintf(stderr,"nextsearch: mixinsearch cmd %p, proc=%p\n",*cmd,*proc);*/ if (*proc == 0) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN) { endOfChain = 1; *cl = 0; } } else { *isMixinEntry = 1; return; } } /* * otherwise: normal method dispatch * * if we are already in the precedence ordering, then advance * past our last point; otherwise (if cl==0) begin from the start */ /* if a mixin or filter chain has ended -> we have to search the obj-specific methods as well */ if (obj->nsPtr && endOfChain) { *cmd = FindMethod(*method, obj->nsPtr); } else { *cmd = 0; } if (!*cmd) { for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl && *cl; pl = pl->next) { if (pl->cl == *cl) *cl = 0; } /* * search for a further class method */ *cl = SearchPLMethod(pl, *method, cmd); /*fprintf(stderr, "no cmd, cl = %p %s\n",*cl, ObjStr((*cl)->object.cmdName));*/ } else { *cl = 0; } if (*cmd) { *proc = Tcl_Command_objProc(*cmd); *cp = Tcl_Command_objClientData(*cmd); } return; } static int XOTclNextMethod(XOTclObject *obj, Tcl_Interp *in, XOTclClass *givenCl, char *givenMethod, int objc, Tcl_Obj *CONST objv[], int useCallstackObjs) { XOTclCallStackContent *csc = CallStackGetTopFrame(in); Tcl_ObjCmdProc *proc = 0; Tcl_Command cmd, currentCmd = NULL; ClientData cp = 0; int result = TCL_OK, frameType = XOTCL_CSC_TYPE_PLAIN, isMixinEntry = 0, isFilterEntry = 0, endOfFilterChain = 0; int nobjc; Tcl_Obj **nobjv; XOTclClass **cl = &givenCl; char **method = &givenMethod; #if !defined(NDEBUG) if (useCallstackObjs) { Tcl_CallFrame *cf = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(in); int found = 0; while (cf) { /* fprintf(stderr, " ... compare fp = %p and cfp %p procFrame %p oc=%d\n", cf, csc->currentFramePtr, Tcl_Interp_framePtr(in), Tcl_CallFrame_objc(Tcl_Interp_framePtr(in)) );*/ if (cf == csc->currentFramePtr) { found = 1; break; } cf = (Tcl_CallFrame *)((CallFrame *)cf)->callerPtr; } /* if (!found) { if (Tcl_Interp_varFramePtr(in)) { fprintf(stderr,"found (csc->currentFramePtr %p)= %d cur level=%d\n", csc->currentFramePtr,found, Tcl_CallFrame_level(Tcl_Interp_varFramePtr(in))); } else { fprintf(stderr,"no varFramePtr\n"); } return TCL_OK; } */ } #endif /* fprintf(stderr,"givenMethod = %s, csc = %p, useCallstackObj %d, objc %d\n", givenMethod, csc, useCallstackObjs, objc); */ /* if no args are given => use args from stack */ if (objc < 2 && useCallstackObjs && csc->currentFramePtr) { nobjc = Tcl_CallFrame_objc(csc->currentFramePtr); nobjv = (Tcl_Obj **)Tcl_CallFrame_objv(csc->currentFramePtr); } else { nobjc = objc; nobjv = (Tcl_Obj **)objv; } /* * Search the next method & compute its method data */ NextSearchMethod(obj, in, csc, cl, method, &proc, &cmd, &cp, &isMixinEntry, &isFilterEntry, &endOfFilterChain, ¤tCmd); /* fprintf(stderr, "NextSearchMethod -- RETURN: method=%s eoffc=%d,", *method, endOfFilterChain); if (obj) fprintf(stderr, " obj=%s,", ObjStr(obj->cmdName)); if ((*cl)) fprintf(stderr, " cl=%s,", (*cl)->nsPtr->fullName); fprintf(stderr, " mixin=%d, filter=%d, proc=%p\n", isMixinEntry, isFilterEntry, proc); */ Tcl_ResetResult(in); /* needed for bytecode support */ if (proc != 0) { /* * change mixin state */ if (obj->mixinStack) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN) csc->frameType = XOTCL_CSC_TYPE_INACTIVE_MIXIN; /* otherwise move the command pointer forward */ if (isMixinEntry) { frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; obj->mixinStack->currentCmdPtr = currentCmd; } } /* * change filter state */ if (obj->filterStack) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) csc->frameType = XOTCL_CSC_TYPE_INACTIVE_FILTER; /* otherwise move the command pointer forward */ if (isFilterEntry) { frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; obj->filterStack->currentCmdPtr = currentCmd; } } /* * now actually call the "next" method */ /* cut the flag, that no stdargs should be used, if it is there */ if (nobjc > 1) { char *nobjv1 = ObjStr(nobjv[1]); if (nobjv1[0] == '-' && !strcmp(nobjv1, "--noArgs")) nobjc = 1; } csc->callType |= XOTCL_CSC_CALL_IS_NEXT; RUNTIME_STATE(in)->unknown = 0; result = DoCallProcCheck(cp, (ClientData)obj, in, nobjc, nobjv, cmd, obj, *cl, *method, frameType, 1/*fromNext*/); csc->callType &= ~XOTCL_CSC_CALL_IS_NEXT; if (csc->frameType == XOTCL_CSC_TYPE_INACTIVE_FILTER) csc->frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; else if (csc->frameType == XOTCL_CSC_TYPE_INACTIVE_MIXIN) csc->frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; } else if (result == TCL_OK && endOfFilterChain) { /*fprintf(stderr,"setting unknown to 1\n");*/ RUNTIME_STATE(in)->unknown = 1; } return result; } int XOTclNextObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclCallStackContent *csc = CallStackGetTopFrame(in); if (!csc->self) return XOTclVarErrMsg(in, "next: can't find self", (char *) NULL); if (!csc->cmdPtr) return XOTclErrMsg(in, "next: no executing proc", TCL_STATIC); return XOTclNextMethod(csc->self, in, csc->cl, (char *)Tcl_GetCommandName(in, csc->cmdPtr), objc, objv, 1); } int XOTclQualifyObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { char *string; if (objc != 2) return XOTclVarErrMsg(in, "wrong # of args for __qualify", (char *) NULL); string = ObjStr(objv[1]); if (!isAbsolutePath(string)) { Tcl_SetObjResult(in, NameInNamespaceObj(in,string,callingNameSpace(in))); } else { Tcl_SetObjResult(in, objv[1]); } return TCL_OK; } /* method for calling e.g. $obj __next */ static int XOTclONextMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc = CallStackGetTopFrame(in); char *methodName; for (; csc >= cs->content; csc--) { if (csc->self == obj) break; } if (csccontent) return XOTclVarErrMsg(in, "__next: can't find object", ObjStr(obj->cmdName), (char *) NULL); methodName = (char *)Tcl_GetCommandName(in, csc->cmdPtr); /*fprintf(stderr,"******* next for proc %s\n", methodName);*/ return XOTclNextMethod(obj, in, csc->cl, methodName, objc-1, &objv[1], 0); } #if 0 /* method next for calling e.g. $obj next */ static int XOTclONextMethod2(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; int result, nobjc; /*XOTclCallStack *cs = &RUNTIME_STATE(in)->cs;*/ XOTclCallStackContent *csc = CallStackGetTopFrame(in); Tcl_Obj **nobjv; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); /* if no args are given => use args from stack */ if (objc < 2) { nobjc = Tcl_CallFrame_objc(csc->currentFramePtr); nobjv = (Tcl_Obj **)Tcl_CallFrame_objv(csc->currentFramePtr); } else { nobjc = objc; nobjv = (Tcl_Obj **)objv; } { ALLOC_ON_STACK(Tcl_Obj*,nobjc + 1, ov); memcpy(ov+1, nobjv, sizeof(Tcl_Obj *)*nobjc); ov[0] = obj->cmdName; result = ObjDispatch(cd, in, nobjc+1, ov, 0); FREE_ON_STACK(ov); } /*fprintf(stderr,"******* next for proc %s\n", methodName);*/ /*result = Tcl_EvalObjv(in, objc, ov, 0);*/ return result; } #endif /* * "self" object command */ static int FindSelfNext(Tcl_Interp *in, XOTclObject *obj) { XOTclCallStackContent *csc = CallStackGetTopFrame(in); Tcl_ObjCmdProc *proc = 0; Tcl_Command cmd, currentCmd = 0; ClientData cp = 0; int isMixinEntry = 0, isFilterEntry = 0, endOfFilterChain = 0; XOTclClass *cl = csc->cl; XOTclObject *o = csc->self; char *methodName; Tcl_ResetResult(in); methodName = (char *) GetSelfProc(in); if (!methodName) return TCL_OK; NextSearchMethod(o, in, csc, &cl, &methodName, &proc, &cmd, &cp, &isMixinEntry, &isFilterEntry, &endOfFilterChain, ¤tCmd); if (cmd) { Tcl_SetObjResult(in, getFullProcQualifier(in, Tcl_GetCommandName(in, cmd), o, cl, cmd)); } return TCL_OK; } static Tcl_Obj * computeLevelObj(Tcl_Interp *in, CallStackLevel level) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc; Tcl_Obj *resultObj; switch (level) { case CALLING_LEVEL: csc = XOTclCallStackFindLastInvocation(in, 1); break; case ACTIVE_LEVEL: csc = XOTclCallStackFindActiveFrame(in, 1); break; default: csc = NULL; } if (cs->top->currentFramePtr == ((Tcl_CallFrame *)Tcl_Interp_varFramePtr(in)) && csc && csc < cs->top && csc->currentFramePtr) { /* this was from an xotcl frame, return absolute frame number */ char buffer[LONG_AS_STRING]; int l; buffer[0] = '#'; /* fprintf(stderr,"*** csc=%p\n",csc);*/ XOTcl_ltoa(buffer+1,(long)Tcl_CallFrame_level(csc->currentFramePtr),&l); resultObj = Tcl_NewStringObj(buffer,l+1); } else { /* If not called from an xotcl frame, return 1 as default */ resultObj = Tcl_NewIntObj(1); } /*XOTclStackDump(in);XOTclCallStackDump(in);*/ return resultObj; } static int XOTclSelfSubCommand(Tcl_Interp *in, XOTclObject *obj, char *option) { assert(option); if (isProcString(option)) { /* proc subcommand */ char *procName = (char *) GetSelfProc(in); if (procName) { Tcl_SetResult(in, procName, TCL_VOLATILE); return TCL_OK; } else { return XOTclVarErrMsg(in, "Can't find proc", (char *) NULL); } } else if (isClassString(option)) { /* class subcommand */ XOTclClass *cl = GetSelfClass(in); Tcl_SetObjResult(in, cl ? cl->object.cmdName : XOTclGlobalObjects[XOTE_EMPTY]); return TCL_OK; } else { XOTclCallStackContent *csc = NULL; switch (*option) { /* other callstack information */ case 'a': if (!strcmp(option, "activelevel")) { Tcl_SetObjResult(in, computeLevelObj(in, ACTIVE_LEVEL)); return TCL_OK; } else if (!strcmp(option,"args")) { int nobjc; Tcl_Obj **nobjv; csc = CallStackGetTopFrame(in); nobjc = Tcl_CallFrame_objc(csc->currentFramePtr); nobjv = (Tcl_Obj **)Tcl_CallFrame_objv(csc->currentFramePtr); Tcl_SetObjResult(in, Tcl_NewListObj(nobjc-1,nobjv+1)); return TCL_OK; } #if defined(ACTIVEMIXIN) else if (!strcmp(option, "activemixin")) { XOTclObject *o = NULL; csc = CallStackGetTopFrame(in); /*CmdListPrint(in,"self a....\n", obj->mixinOrder); fprintf(stderr,"current cmdPtr = %p cl = %p, mo=%p %p\n", csc->cmdPtr, csc->cl, obj->mixinOrder, RUNTIME_STATE(in)->cmdPtr);*/ if (RUNTIME_STATE(in)->cmdPtr) { o = XOTclGetObjectFromCmdPtr(RUNTIME_STATE(in)->cmdPtr); } Tcl_SetObjResult(in, o ? o->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); return TCL_OK; } #endif break; case 'c': if (!strcmp(option, "calledproc")) { if (!(csc = CallStackFindActiveFilter(in))) return XOTclVarErrMsg(in, "self calledproc called from outside of a filter", (char *) NULL); Tcl_SetObjResult(in, csc->filterStackEntry->calledProc); return TCL_OK; } else if (!strcmp(option, "calledclass")) { Tcl_SetResult(in, className(FindCalledClass(in, obj)), TCL_VOLATILE); return TCL_OK; } else if (!strcmp(option, "callingproc")) { csc = XOTclCallStackFindLastInvocation(in, 1); Tcl_SetResult(in, csc ? (char *)Tcl_GetCommandName(in, csc->cmdPtr) : "", TCL_VOLATILE); return TCL_OK; } else if (!strcmp(option, "callingclass")) { csc = XOTclCallStackFindLastInvocation(in, 1); Tcl_SetObjResult(in, csc && csc->cl ? csc->cl->object.cmdName : XOTclGlobalObjects[XOTE_EMPTY]); return TCL_OK; } else if (!strcmp(option, "callinglevel")) { Tcl_SetObjResult(in, computeLevelObj(in, CALLING_LEVEL)); return TCL_OK; } else if (!strcmp(option, "callingobject")) { /*XOTclStackDump(in); XOTclCallStackDump(in);*/ csc = XOTclCallStackFindLastInvocation(in, 1); Tcl_SetObjResult(in, csc ? csc->self->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); return TCL_OK; } break; case 'f': if (!strcmp(option, "filterreg")) { if (!(csc = CallStackFindActiveFilter(in))) { return XOTclVarErrMsg(in, "self filterreg called from outside of a filter", (char *) NULL); } Tcl_SetObjResult(in, FilterFindReg(in, obj, GetSelfProcCmdPtr(in))); return TCL_OK; } break; case 'i': if (!strcmp(option, "isnextcall")) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; csc = cs->top; csc--; Tcl_SetBooleanObj(Tcl_GetObjResult(in), (csc > cs->content && (csc->callType & XOTCL_CSC_CALL_IS_NEXT))); return TCL_OK; } break; case 'n': if (!strcmp(option, "next")) return FindSelfNext(in, obj); break; } } return XOTclVarErrMsg(in, "unknown option '", option, "' for self", (char *) NULL); } /* int XOTclKObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { if (objc < 2) return XOTclVarErrMsg(in, "wrong # of args for K", (char *) NULL); Tcl_SetObjResult(in, objv[1]); return TCL_OK; } */ int XOTclGetSelfObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj; if (objc > 2) return XOTclVarErrMsg(in, "wrong # of args for self", (char *) NULL); obj = GetSelfObj(in); /*fprintf(stderr,"getSelfObj returns %p\n",obj);XOTclCallStackDump(in);*/ if (!obj) { if (objc == 2 && !strcmp(ObjStr(objv[1]),"callinglevel")) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); return TCL_OK; } else { return XOTclVarErrMsg(in, "self: no current object", (char *) NULL); } } if (objc == 1) { Tcl_SetObjResult(in, obj->cmdName); return TCL_OK; } else { return XOTclSelfSubCommand(in, obj, ObjStr(objv[1])); } } /* * object creation & destruction */ static int unsetInAllNamespaces(Tcl_Interp *in, Namespace *nsPtr, char *name) { int rc = 0; fprintf(stderr, "### unsetInAllNamespaces %s\n",name); if (nsPtr != NULL) { Tcl_HashSearch search; Tcl_HashEntry *entryPtr = Tcl_FirstHashEntry(&nsPtr->childTable, &search); Tcl_Var *varPtr; int rc = 0; varPtr = (Tcl_Var *) Tcl_FindNamespaceVar(in, name, (Tcl_Namespace *) nsPtr, 0); /*fprintf(stderr, "found %s in %s -> %p\n",name, nsPtr->fullName, varPtr);*/ if (varPtr) { Tcl_DString dFullname, *dsPtr = &dFullname; Tcl_DStringInit(dsPtr); Tcl_DStringAppend(dsPtr, "unset ", -1); Tcl_DStringAppend(dsPtr, nsPtr->fullName, -1); Tcl_DStringAppend(dsPtr, "::", 2); Tcl_DStringAppend(dsPtr, name, -1); /*rc = Tcl_UnsetVar2(in, Tcl_DStringValue(dsPtr), NULL, TCL_LEAVE_ERR_MSG);*/ rc = Tcl_Eval(in, Tcl_DStringValue(dsPtr)); /* fprintf(stderr, "fqName = '%s' unset => %d %d\n",Tcl_DStringValue(dsPtr), rc, TCL_OK);*/ if (rc == TCL_OK) { rc = 1; } else { Tcl_Obj *resultObj = Tcl_GetObjResult(in); fprintf(stderr, " err = '%s'\n", ObjStr(resultObj)); } Tcl_DStringFree(dsPtr); } while (entryPtr != NULL) { Namespace *childNsPtr = (Namespace *) Tcl_GetHashValue(entryPtr); /*fprintf(stderr, "child = %s\n", childNsPtr->fullName);*/ entryPtr = Tcl_NextHashEntry(&search); rc |= unsetInAllNamespaces(in, childNsPtr, name); } } return rc; } static int freeUnsetTraceVariable(Tcl_Interp *in, XOTclObject *obj) { int rc = TCL_OK; if (obj->opt && obj->opt->volatileVarName) { /* Somebody destroys a volatile object manually while the vartrace is still active. Destroying the object will be a problem in case the variable is deleted later and fires the trace. So, we unset the variable here which will cause a destroy via var trace, which in turn clears the volatileVarName flag. */ /*fprintf(stderr,"### freeUnsetTraceVariable %s\n", obj->opt->volatileVarName);*/ rc = Tcl_UnsetVar2(in, obj->opt->volatileVarName, NULL, 0); if (rc != TCL_OK) { int rc = Tcl_UnsetVar2(in, obj->opt->volatileVarName, NULL, TCL_GLOBAL_ONLY); if (rc != TCL_OK) { Namespace *nsPtr = (Namespace *) Tcl_GetCurrentNamespace(in); if (unsetInAllNamespaces(in, nsPtr, obj->opt->volatileVarName) == 0) { fprintf(stderr, "### don't know how to delete variable '%s' of volatile object\n", obj->opt->volatileVarName); } } } if (rc == TCL_OK) { /*fprintf(stderr, "### success unset\n");*/ } } return rc; } static char * XOTclUnsetTrace(ClientData cd, Tcl_Interp *in, CONST84 char *name, CONST84 char *name2, int flags) { Tcl_Obj *obj = (Tcl_Obj *)cd; XOTclObject *o; char *result = NULL; /*fprintf(stderr,"XOTclUnsetTrace %s flags %x %x\n", name, flags, flags & TCL_INTERP_DESTROYED); */ if ((flags & TCL_INTERP_DESTROYED) == 0) { if (XOTclObjConvertObject(in, obj, &o) == TCL_OK) { Tcl_Obj *res = Tcl_GetObjResult(in); /* save the result */ INCR_REF_COUNT(res); /* clear variable, destroy is called from trace */ if (o->opt && o->opt->volatileVarName) { o->opt->volatileVarName = NULL; } if (callMethod((ClientData)o, in, XOTclGlobalObjects[XOTE_DESTROY],2,0,0) != TCL_OK) { result = "Destroy for volatile object failed"; } else result = "No XOTcl Object passed"; Tcl_SetObjResult(in, res); /* restore the result */ DECR_REF_COUNT(res); } DECR_REF_COUNT(obj); } else { /*fprintf(stderr, "omitting destroy on %s %p\n", name);*/ } return result; } /* * mark an obj on the existing callstack, as not destroyed */ static void UndestroyObj(Tcl_Interp *in, XOTclObject *obj) { XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc; /* * mark the object on the whole callstack as not destroyed */ for (csc = &cs->content[1]; csc <= cs->top; csc++) { if (obj == csc->self && csc->destroyedCmd) { /* * The ref count was incremented, when csc->destroyedCmd * was set. We revert this first before forgetting the * destroyedCmd. */ if (Tcl_Command_refCount(csc->destroyedCmd) > 1) { Tcl_Command_refCount(csc->destroyedCmd)--; MEM_COUNT_FREE("command refCount",csc->destroyedCmd); } csc->destroyedCmd = 0; } } /* * mark obj->flags XOTCL_DESTROY_CALLED as NOT CALLED (0) */ obj->flags &= ~XOTCL_DESTROY_CALLED; } /* * bring an object into a state, as after initialization */ static void CleanupDestroyObject(Tcl_Interp *in, XOTclObject *obj, int softrecreate) { XOTclClass *thecls, *theobj; thecls = RUNTIME_STATE(in)->theClass; theobj = RUNTIME_STATE(in)->theObject; /* remove the instance, but not for ::Class/::Object */ if (obj != &(thecls->object) && obj != &(theobj->object)) { if (!softrecreate) { (void)RemoveInstance(obj, obj->cl); } } if (obj->nsPtr) { NSCleanupNamespace(in, obj->nsPtr); NSDeleteChildren(in, obj->nsPtr); } if (obj->varTable) { TclDeleteVars(((Interp *)in), obj->varTable); ckfree((char *)obj->varTable); /* FREE(obj->varTable, obj->varTable);*/ obj->varTable = 0; } if (obj->opt) { XOTclObjectOpt *opt = obj->opt; AssertionRemoveStore(opt->assertions); opt->assertions = NULL; #ifdef XOTCL_METADATA XOTclMetaDataDestroy(obj); #endif if (!softrecreate) { CmdListRemoveList(&opt->mixins, GuardDel); CmdListRemoveList(&opt->filters, GuardDel); FREE(XOTclObjectOpt,opt); opt = obj->opt = 0; } } if (obj->nonposArgsTable) { NonposArgsFreeTable(obj->nonposArgsTable); Tcl_DeleteHashTable(obj->nonposArgsTable); MEM_COUNT_FREE("Tcl_InitHashTable", obj->nonposArgsTable); ckfree((char *) obj->nonposArgsTable); MEM_COUNT_FREE("Tcl_HashTable",obj->nonposArgsTable); } obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; if (obj->mixinOrder) MixinResetOrder(obj); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; if (obj->filterOrder) FilterResetOrder(obj); } /* * do obj initialization & namespace creation */ static void CleanupInitObject(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl, Tcl_Namespace *namespacePtr, int softrecreate) { #ifdef OBJDELETION_TRACE fprintf(stderr,"+++ CleanupInitObject\n"); #endif obj->teardown = in; obj->nsPtr = namespacePtr; if (!softrecreate) { AddInstance(obj, cl); } if (obj->flags & XOTCL_RECREATE) { obj->opt = 0; obj->varTable = 0; obj->nonposArgsTable = 0; obj->mixinOrder = 0; obj->filterOrder = 0; obj->flags = 0; } } /* * physical object destroy */ static void PrimitiveODestroy(ClientData cd) { XOTclObject *obj = (XOTclObject*)cd; Tcl_Interp *in; /*fprintf(stderr, "****** PrimitiveODestroy %p\n",obj);*/ assert(obj && !(obj->flags & XOTCL_DESTROYED)); /* * check and latch against recurrent calls with obj->teardown */ PRINTOBJ("PrimitiveODestroy", obj); if (!obj || !obj->teardown) return; in = obj->teardown; obj->teardown = 0; /* * Don't destroy, if the interpreter is destroyed already * e.g. TK calls Tcl_DeleteInterp directly, if the window is killed */ if (Tcl_InterpDeleted(in)) return; /* * call and latch user destroy with obj->id if we haven't */ if (!(obj->flags & XOTCL_DESTROY_CALLED)) { callDestroyMethod(cd, in, obj, 0); obj->id = 0; } #ifdef OBJDELETION_TRACE fprintf(stderr," physical delete of %p id=%p destroyCalled=%d '%s'\n", obj, obj->id, (obj->flags & XOTCL_DESTROY_CALLED), ObjStr(obj->cmdName)); #endif CleanupDestroyObject(in, obj, 0); while (obj->mixinStack != NULL) MixinStackPop(obj); while (obj->filterStack != NULL) FilterStackPop(obj); #if 0 { /* Prevent that PrimitiveODestroy is called more than once. This code was used in earlier versions of XOTcl but does not seem necessary any more. If it has to be used again in the future, don't use Tcl_GetCommandFromObj() in Tcl 8.4.* versions. */ Tcl_Command cmd = Tcl_FindCommand(in, ObjStr(obj->cmdName), 0, 0); if (cmd != NULL) Tcl_Command_deleteProc(cmd) = 0; } #endif if (obj->nsPtr) { /*fprintf(stderr,"primitive odestroy calls deletenamespace for obj %p\n",obj);*/ XOTcl_DeleteNamespace(in, obj->nsPtr); obj->nsPtr = 0; } /*fprintf(stderr, " +++ OBJ/CLS free: %s\n", ObjStr(obj->cmdName));*/ obj->flags |= XOTCL_DESTROYED; objTrace("ODestroy", obj); #if REFCOUNT_TRACE fprintf(stderr,"ODestroy %p flags %d rc %d destr %d dc %d\n", obj, obj->flags, (obj->flags & XOTCL_REFCOUNTED) != 0, (obj->flags & XOTCL_DESTROYED) != 0, (obj->flags & XOTCL_DESTROY_CALLED) != 0 ); #endif #if REFCOUNTED if (!(obj->flags & XOTCL_REFCOUNTED)) { DECR_REF_COUNT(obj->cmdName); } #else DECR_REF_COUNT(obj->cmdName); #endif XOTclCleanupObject(obj); #if !defined(NDEBUG) if (obj != (XOTclObject*)RUNTIME_STATE(in)->theClass) checkAllInstances(in, RUNTIME_STATE(in)->theClass,0); #endif } static void PrimitiveOInit(void* mem, Tcl_Interp *in, char *name, XOTclClass *cl) { XOTclObject *obj = (XOTclObject*)mem; #ifdef OBJDELETION_TRACE fprintf(stderr,"+++ PrimitiveOInit\n"); #endif #ifdef XOTCLOBJ_TRACE fprintf(stderr, "OINIT %s = %p\n", name, obj); #endif XOTclObjectRefCountIncr(obj); /* if the command of the obj was used before, we have to clean * up the callstack from set "destroyedCmd" flags */ UndestroyObj(in, obj); if (Tcl_FindNamespace(in, name, NULL, 0)) { CleanupInitObject(in, obj, cl, NSGetFreshNamespace(in, (ClientData)obj, name), 0); } else { CleanupInitObject(in, obj, cl, NULL, 0); } /*obj->flags = XOTCL_MIXIN_ORDER_VALID | XOTCL_FILTER_ORDER_VALID;*/ obj->mixinStack = 0; obj->filterStack = 0; } /* * Object creation: create object name (full name) and Tcl command */ static XOTclObject* PrimitiveOCreate(Tcl_Interp *in, char *name, XOTclClass *cl) { XOTclObject *obj = (XOTclObject*)ckalloc(sizeof(XOTclObject)); unsigned length; /*fprintf(stderr, "CKALLOC Object %p %s\n", obj, name);*/ #if defined(XOTCLOBJ_TRACE) fprintf(stderr, "CKALLOC Object %p %s\n", obj, name); #endif #ifdef OBJDELETION_TRACE fprintf(stderr,"+++ PrimitiveOCreate\n"); #endif memset(obj, 0, sizeof(XOTclObject)); MEM_COUNT_ALLOC("XOTclObject/XOTclClass",obj); assert(obj); /* ckalloc panics, if malloc fails */ assert(isAbsolutePath(name)); length = strlen(name); if (!NSCheckForParent(in, name, length)) { ckfree((char *) obj); return 0; } obj->id = Tcl_CreateObjCommand(in, name, XOTclObjDispatch, (ClientData)obj, PrimitiveODestroy); PrimitiveOInit(obj, in, name, cl); #if 0 /*defined(KEEP_TCL_CMD_TYPE)*/ /*TclNewObj(obj->cmdName);*/ obj->cmdName = Tcl_NewStringObj(name,length); TclSetCmdNameObj(in, obj->cmdName, (Command*)obj->id); /*fprintf(stderr, "new command has name '%s'\n", ObjStr(obj->cmdName));*/ #else obj->cmdName = NewXOTclObjectObjName(obj, name, length); #endif INCR_REF_COUNT(obj->cmdName); objTrace("PrimitiveOCreate", obj); return obj; } /* * Cleanup class: remove filters, mixins, assertions, instances ... * and remove class from class hierarchy */ static void CleanupDestroyClass(Tcl_Interp *in, XOTclClass *cl, int softrecreate) { Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; XOTclClass *theobj = RUNTIME_STATE(in)->theObject; XOTclObject *obj = (XOTclObject*)cl; XOTclClassOpt* opt = cl->opt; if (opt) { CmdListRemoveList(&opt->instmixins, GuardDel); MixinInvalidateObjOrders(in, cl); CmdListRemoveList(&opt->instfilters, GuardDel); FilterInvalidateObjOrders(in, cl); /* remove dependent filters of this class from all subclasses*/ FilterRemoveDependentFilterCmds(cl, cl); AssertionRemoveStore(opt->assertions); #ifdef XOTCL_OBJECTDATA XOTclFreeObjectData(cl); #endif } Tcl_ForgetImport(in, cl->nsPtr, "*"); /* don't destroy namespace imported objects */ NSCleanupNamespace(in, cl->nsPtr); NSDeleteChildren(in, cl->nsPtr); if (!softrecreate) { /* reset all instances to the class ::xotcl::Object, that makes no sense for ::Object itself */ if (cl != theobj) { hPtr = &cl->instances ? Tcl_FirstHashEntry(&cl->instances, &hSrch) : 0; for (; hPtr != 0; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *inst = (XOTclObject*)Tcl_GetHashKey(&cl->instances, hPtr); if (inst && (inst != (XOTclObject*)cl) && inst->id) { if (inst != &(theobj->object)) { (void)RemoveInstance(inst, obj->cl); AddInstance(inst, theobj); } } } } Tcl_DeleteHashTable(&cl->instances); MEM_COUNT_FREE("Tcl_InitHashTable",&cl->instances); } if (cl->nonposArgsTable) { NonposArgsFreeTable(cl->nonposArgsTable); Tcl_DeleteHashTable(cl->nonposArgsTable); MEM_COUNT_FREE("Tcl_InitHashTable", cl->nonposArgsTable); ckfree((char *) cl->nonposArgsTable); MEM_COUNT_FREE("Tcl_HashTable",cl->nonposArgsTable); } if (cl->parameters) { DECR_REF_COUNT(cl->parameters); } if (opt) { if (opt->parameterClass) { DECR_REF_COUNT(opt->parameterClass); } FREE(XOTclClassOpt, opt); opt = cl->opt = 0; } if (!softrecreate) { /* * flush all caches, unlink superclasses */ FlushPrecedences(cl); while (cl->sub) { XOTclClass *subClass = cl->sub->cl; (void)RemoveSuper(subClass, cl); /* if there are no more super classes add the Object * class as superclasses * -> don't do that for Object itself! */ if (subClass->super == 0 && cl != theobj) AddSuper(subClass, theobj); } while (cl->super) (void)RemoveSuper(cl, cl->super->cl); } } /* * do class initialization & namespace creation */ static void CleanupInitClass(Tcl_Interp *in, XOTclClass *cl, Tcl_Namespace *namespacePtr, int softrecreate) { XOTclObject *obj = (XOTclObject*)cl; #ifdef OBJDELETION_TRACE fprintf(stderr,"+++ CleanupInitClass\n"); #endif /* * during init of Object and Class the theClass value is not set */ /* if (RUNTIME_STATE(in)->theClass != 0) obj->type = RUNTIME_STATE(in)->theClass; */ XOTclObjectSetClass(obj); cl->nsPtr = namespacePtr; cl->super = 0; cl->sub = 0; AddSuper(cl, RUNTIME_STATE(in)->theObject); cl->parent = RUNTIME_STATE(in)->theObject; cl->color = WHITE; cl->order = 0; cl->parameters = 0; if (!softrecreate) { Tcl_InitHashTable(&cl->instances, TCL_ONE_WORD_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable",&cl->instances); } cl->opt = 0; cl->nonposArgsTable = 0; } /* * class physical destruction */ static void PrimitiveCDestroy(ClientData cd) { XOTclClass *cl = (XOTclClass*)cd; XOTclObject *obj = (XOTclObject*)cd; Tcl_Interp *in; Tcl_Namespace* saved; /* * check and latch against recurrent calls with obj->teardown */ if (!obj || !obj->teardown) return; in = obj->teardown; /* * Don't destroy, if the interpreted is destroyed already * e.g. TK calls Tcl_DeleteInterp directly, if Window is killed */ if (Tcl_InterpDeleted(in)) return; /* * call and latch user destroy with obj->id if we haven't */ /*fprintf(stderr,"PrimitiveCDestroy %s flags %x\n",ObjStr(obj->cmdName),obj->flags);*/ if (!(obj->flags & XOTCL_DESTROY_CALLED)) /*fprintf(stderr,"PrimitiveCDestroy call destroy\n");*/ callDestroyMethod(cd, in, obj, 0); obj->teardown = 0; CleanupDestroyClass(in, cl, 0); /* * handoff the primitive teardown */ saved = cl->nsPtr; obj->teardown = in; /* * class object destroy + physical destroy */ /*fprintf(stderr,"primitive cdestroy calls primitive odestroy\n");*/ PrimitiveODestroy(cd); /*fprintf(stderr,"primitive cdestroy calls deletenamespace for obj %p\n",cl);*/ saved->clientData = 0; XOTcl_DeleteNamespace(in, saved); return; } /* * class init */ static void PrimitiveCInit(XOTclClass *cl, Tcl_Interp *in, char *name) { TclCallFrame frame, *framePtr = &frame; Tcl_Namespace* ns; /* * ensure that namespace is newly created during CleanupInitClass * ie. kill it, if it exists already */ if (Tcl_PushCallFrame(in, (Tcl_CallFrame *)framePtr, RUNTIME_STATE(in)->XOTclClassesNS, 0) != TCL_OK) return; ns = NSGetFreshNamespace(in, (ClientData)cl, name); Tcl_PopCallFrame(in); CleanupInitClass(in, cl, ns, 0); return; } /* * class create: creation of namespace + class full name * calls class object creation */ static XOTclClass* PrimitiveCCreate(Tcl_Interp *in, char *name, XOTclClass *class) { XOTclClass *cl = (XOTclClass*)ckalloc(sizeof(XOTclClass)); unsigned length; XOTclObject *obj = (XOTclObject*)cl; /*fprintf(stderr, "CKALLOC Class %p %s\n", cl, name);*/ memset(cl, 0, sizeof(XOTclClass)); MEM_COUNT_ALLOC("XOTclObject/XOTclClass",cl); /* fprintf(stderr, " +++ CLS alloc: %s\n", name); */ assert(isAbsolutePath(name)); length = strlen(name); /* fprintf(stderr,"Class alloc %p '%s'\n", cl, name); */ /* check whether Object parent NS already exists, otherwise: error */ if (!NSCheckForParent(in, name, length)) { ckfree((char *) cl); return 0; } obj->id = Tcl_CreateObjCommand(in, name, XOTclObjDispatch, (ClientData)cl, PrimitiveCDestroy); PrimitiveOInit(obj, in, name, class); obj->cmdName = NewXOTclObjectObjName(obj,name,length); INCR_REF_COUNT(obj->cmdName); PrimitiveCInit(cl, in, name+2); objTrace("PrimitiveCCreate", obj); return cl; } /* change XOTcl class conditionally; obj must not be NULL */ XOTCLINLINE static int changeClass(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl) { assert(obj); if (cl != obj->cl) { if (IsMetaClass(in, cl) && !IsMetaClass(in, obj->cl)) { return XOTclVarErrMsg(in, "cannot change class of object ", ObjStr(obj->cmdName), " to metaclass ", ObjStr(cl->object.cmdName),(char *) NULL); } (void)RemoveInstance(obj, obj->cl); AddInstance(obj, cl); MixinComputeDefined(in, obj); FilterComputeDefined(in, obj); } return TCL_OK; } /* * Undestroy the object, reclass it, and call "cleanup" afterwards */ static int doCleanup(Tcl_Interp *in, XOTclObject *newobj, XOTclObject *classobj, int objc, Tcl_Obj *CONST objv[]) { int destroyed = 0, result; XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *csc; /* * we check whether the object to be re-created is destroyed or not */ for (csc = &cs->content[1]; csc <= cs->top; csc++) { if (newobj == csc->self && csc->destroyedCmd) { destroyed = 1; break; } } if (destroyed) UndestroyObj(in, newobj); /* * re-create, first ensure correct class for newobj */ result = changeClass(in, newobj, (XOTclClass*) classobj); if (result == TCL_OK) { /* * dispatch "cleanup" */ result = callMethod((ClientData) newobj, in, XOTclGlobalObjects[XOTE_CLEANUP], 2, 0, 0); } return result; } /* * Std object initialization: * call parameter default values * apply "-" methods (call "configure" with given arguments) * call constructor "init", if it was not called before */ static int doObjInitialization(Tcl_Interp *in, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { int result, initArgsC = objc; Tcl_Obj *savedObjResult = Tcl_GetObjResult(in); /* save the result */ INCR_REF_COUNT(savedObjResult); /* * Search for default values of parameter on superclasses */ if (!(obj->flags & XOTCL_INIT_CALLED)) { result = callParameterMethodWithArg(obj, in, XOTclGlobalObjects[XOTE_SEARCH_DEFAULTS], obj->cmdName, 3, 0, 0); if (result != TCL_OK) return result; } /* clear INIT_CALLED_FLAG */ obj->flags &= ~XOTCL_INIT_CALLED; /* * call configure methods (starting with '-') */ result = callMethod((ClientData) obj, in, XOTclGlobalObjects[XOTE_CONFIGURE], objc, objv+2, 0); if (result != TCL_OK) return result; /* check, whether init was called already, and determine where the * configure (with '-') start (we don't send them as args to * "init"). */ if (!(obj->flags & XOTCL_INIT_CALLED)) { int newargs; Tcl_Obj *resultObj = Tcl_GetObjResult(in); /* * Call the user-defined constructor 'init' */ INCR_REF_COUNT(resultObj); result = Tcl_GetIntFromObj(in,resultObj,&newargs); DECR_REF_COUNT(resultObj); if (result == TCL_OK && newargs+2 < objc) initArgsC = newargs+2; result = callMethod((ClientData) obj, in, XOTclGlobalObjects[XOTE_INIT], initArgsC, objv+2, 0); obj->flags |= XOTCL_INIT_CALLED; } if (result == TCL_OK) { Tcl_SetObjResult(in, savedObjResult); } DECR_REF_COUNT(savedObjResult); return result; } /* * experimental resolver implementation -> not used at the moment */ #ifdef NOT_USED static int XOTclResolveCmd(Tcl_Interp *in, char *name, Tcl_Namespace *contextNsPtr, int flags, Tcl_Command *rPtr) { Tcl_Namespace *nsPtr[2], *cxtNsPtr; char *simpleName; register Tcl_HashEntry *entryPtr; register Tcl_Command cmd; register int search; /*fprintf(stderr, " ***%s->%s\n", contextNsPtr->fullName, name);*/ /* * Find the namespace(s) that contain the command. */ if ((flags & TCL_GLOBAL_ONLY) != 0) { cxtNsPtr = Tcl_GetGlobalNamespace(in); } else if (contextNsPtr != NULL) { cxtNsPtr = contextNsPtr; } else { cxtNsPtr = Tcl_GetCurrentNamespace(in); } TclGetNamespaceForQualName(in, name, (Namespace *) contextNsPtr, flags, &nsPtr[0], &nsPtr[1], &cxtNsPtr, &simpleName); /*fprintf(stderr, " ***Found %s, %s\n", nsPtr[0]->fullName, nsPtr[0]->fullName);*/ /* * Look for the command in the command table of its namespace. * Be sure to check both possible search paths: from the specified * namespace context and from the global namespace. */ cmd = NULL; for (search = 0; (search < 2) && (cmd == NULL); search++) { if ((nsPtr[search] != NULL) && (simpleName != NULL)) { cmdTable = Tcl_Namespace_cmdTable(nsPtr[search]); entryPtr = Tcl_FindHashEntry(cmdTable, simpleName); if (entryPtr != NULL) { cmd = (Tcl_Command) Tcl_GetHashValue(entryPtr); } } } if (cmd != NULL) { Tcl_ObjCmdProc* objProc = Tcl_Command_objProc(cmd); if (cxtNsPtr->deleteProc == NSNamespaceDeleteProc && objProc != XOTclObjDispatch && objProc != XOTclNextObjCmd && objProc != XOTclGetSelfObjCmd) { /* * the cmd is defined in an XOTcl object or class namespace, but * not an object & not self/next -> redispatch in * global namespace */ cmd = 0; nsPtr[0] = Tcl_GetGlobalNamespace(in); if ((nsPtr[0] != NULL) && (simpleName != NULL)) { cmdTable = Tcl_Namespace_cmdTable(nsPtr[0]); if ((entryPtr = Tcl_FindHashEntry(cmdTable, simpleName))) { cmd = (Tcl_Command) Tcl_GetHashValue(entryPtr); } } /* XOTclStackDump(in); XOTclCallStackDump(in); */ } *rPtr = cmd; return TCL_OK; } return TCL_CONTINUE; } static int XOTclResolveVar(Tcl_Interp *in, char *name, Tcl_Namespace *context, Tcl_ResolvedVarInfo *rPtr) { /*fprintf(stderr, "Resolving %s in %s\n", name, context->fullName);*/ return TCL_CONTINUE; } #endif /* * object method implementations */ static int XOTclODestroyMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 1) return XOTclObjErrArgCnt(in, obj->cmdName, "destroy"); PRINTOBJ("XOTclODestroyMethod", obj); /* * call instdestroy for [self] */ return XOTclCallMethodWithArgs((ClientData)obj->cl, in, XOTclGlobalObjects[XOTE_INSTDESTROY], obj->cmdName, objc, objv+1, 0); } static int XOTclOCleanupMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclClass *cl = XOTclObjectToClass(obj); char *fn; int softrecreate; Tcl_Obj *savedNameObj; #if defined(OBJDELETION_TRACE) fprintf(stderr,"+++ XOTclOCleanupMethod\n"); #endif if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 1) return XOTclObjErrArgCnt(in, obj->cmdName, "cleanup"); PRINTOBJ("XOTclOCleanupMethod", obj); fn = ObjStr(obj->cmdName); savedNameObj = obj->cmdName; INCR_REF_COUNT(savedNameObj); /* save and pass around softrecreate*/ softrecreate = obj->flags & XOTCL_RECREATE&& RUNTIME_STATE(in)->doSoftrecreate; CleanupDestroyObject(in, obj, softrecreate); CleanupInitObject(in, obj, obj->cl, obj->nsPtr, softrecreate); if (cl) { CleanupDestroyClass(in, cl, softrecreate); CleanupInitClass(in, cl, cl->nsPtr, softrecreate); } DECR_REF_COUNT(savedNameObj); return TCL_OK; } static int XOTclOIsClassMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_Obj *className; XOTclObject *obj = (XOTclObject*)cd, *o; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 1 || objc > 2) return XOTclObjErrArgCnt(in, obj->cmdName, "isclass ?className?"); className = (objc == 2) ? objv[1] : obj->cmdName; Tcl_SetIntObj(Tcl_GetObjResult(in), (XOTclObjConvertObject(in, className, &o) == TCL_OK && XOTclObjectIsClass(o) )); return TCL_OK; } static int XOTclOIsObjectMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd, *o; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "isobject "); if (XOTclObjConvertObject(in, objv[1], &o) == TCL_OK) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); } else { Tcl_SetIntObj(Tcl_GetObjResult(in), 0); } return TCL_OK; } static int IsMetaClass(Tcl_Interp *in, XOTclClass *cl) { /* check if cl is a meta-class by checking is Class is a superclass of cl*/ XOTclClasses *pl, *checkList=0, *mixinClasses = 0, *mc; int hasMCM = 0; if (cl == RUNTIME_STATE(in)->theClass) return 1; for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->next) { if (pl->cl == RUNTIME_STATE(in)->theClass) return 1; } for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->next) { XOTclClassOpt* opt = pl->cl->opt; if (opt && opt->instmixins) { MixinComputeOrderFullList(in, &opt->instmixins, &mixinClasses, &checkList, 0); } } for (mc=mixinClasses; mc; mc = mc->next) { /*fprintf(stderr,"- got %s\n",ObjStr(mc->cl->object.cmdName));*/ if (isSubType(mc->cl, RUNTIME_STATE(in)->theClass)) { hasMCM = 1; break; } } XOTclFreeClasses(mixinClasses); XOTclFreeClasses(checkList); /*fprintf(stderr,"has MC returns %d, mixinClasses = %p\n", hasMCM, mixinClasses);*/ return hasMCM; } static int XOTclOIsMetaClassMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd, *o; Tcl_Obj *className; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 1 || objc > 2) return XOTclObjErrArgCnt(in, obj->cmdName, "ismetaclass ?metaClassName?"); className = (objc == 2) ? objv[1] : obj->cmdName; if (XOTclObjConvertObject(in, className, &o) == TCL_OK && XOTclObjectIsClass(o) && IsMetaClass(in, (XOTclClass*)o)) { Tcl_SetIntObj(Tcl_GetObjResult(in), 1); } else { Tcl_SetIntObj(Tcl_GetObjResult(in), 0); } return TCL_OK; } static int isSubType(XOTclClass *subcl, XOTclClass *cl) { XOTclClasses *t; int success = 1; assert(cl && subcl); if (cl != subcl) { success = 0; for (t = ComputeOrder(subcl, subcl->order, Super); t && t->cl; t = t->next) { if (t->cl == cl) { success = 1; break; } } } return success; } static int XOTclOIsTypeMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclClass *cl; int success = 0; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "istype "); if (obj->cl && GetXOTclClassFromObj(in,objv[1],&cl, 1) == TCL_OK) { success = isSubType(obj->cl,cl); } Tcl_ResetResult(in); Tcl_SetIntObj(Tcl_GetObjResult(in), success); return TCL_OK; } static int hasMixin(Tcl_Interp *in, XOTclObject *obj, XOTclClass *cl) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if ((obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID)) { XOTclCmdList *ml; for (ml = obj->mixinOrder; ml; ml = ml->next) { XOTclClass *mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin == cl) { return 1; } } } return 0; } static int XOTclOIsMixinMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclClass *cl; int success = 0; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "ismixin "); if (GetXOTclClassFromObj(in,objv[1],&cl, 1) == TCL_OK) { success = hasMixin(in, obj, cl); } Tcl_ResetResult(in); Tcl_SetIntObj(Tcl_GetObjResult(in), success); return TCL_OK; } static int XOTclOExistsMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "exists var"); Tcl_SetIntObj(Tcl_GetObjResult(in), varExists(in, obj, ObjStr(objv[1]),NULL, 1,1)); return TCL_OK; } static int countModifiers(int objc, Tcl_Obj * CONST objv[]) { int i, count = 0; char *to; for (i = 2; i < objc; i++) { to = ObjStr(objv[i]); if (to[0] == '-') { count++; /* '--' stops modifiers */ if (to[1] == '-') break; } } return count; } static int checkForModifier(Tcl_Obj * CONST objv[], int numberModifiers, char *modifier) { int i; if (numberModifiers == 0) return 0; for (i = 2; i-2 < numberModifiers; i++) { char *ov = ObjStr(objv[i]); /* all start with a "-", so there must be a ov[1] */ if (ov[1] == modifier[1] && !strcmp(ov, modifier)) return 1; } return 0; } static int XOTclOInfoMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; Tcl_Namespace *nsp = obj->nsPtr; char *cmd, *pattern; int modifiers = 0; XOTclObjectOpt *opt; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "info ?args?"); opt = obj->opt; cmd = ObjStr(objv[1]); pattern = (objc > 2) ? ObjStr(objv[2]) : 0; /*fprintf(stderr, "OInfo cmd=%s, obj=%s, nsp=%p\n",cmd,ObjStr(obj->cmdName),nsp);*/ /* * check for "-" modifiers */ if (pattern && *pattern == '-') { modifiers = countModifiers(objc, objv); pattern = (objc > 2+modifiers) ? ObjStr(objv[2+modifiers]) : 0; } switch (*cmd) { case 'a': if (isArgsString(cmd)) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info args "); if (obj->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(obj->nonposArgsTable, pattern); if (nonposArgs) { return ListArgsFromOrdinaryArgs(in, nonposArgs); } } if (nsp) return ListProcArgs(in, Tcl_Namespace_cmdTable(nsp), pattern); else return TCL_OK; } break; case 'b': if (!strcmp(cmd, "body")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info body "); if (nsp) return ListProcBody(in, Tcl_Namespace_cmdTable(nsp), pattern); else return TCL_OK; } break; case 'c': if (isClassString(cmd)) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info class ?class?"); return ListClass(in, obj, pattern, objc, objv); } else if (!strcmp(cmd, "commands")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info commands ?pat?"); if (nsp) return ListKeys(in, Tcl_Namespace_cmdTable(nsp), pattern); else return TCL_OK; } else if (!strcmp(cmd, "children")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info children ?pat?"); return ListChildren(in, obj, pattern, 0); } else if (!strcmp(cmd, "check")) { if (objc != 2 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info check"); return AssertionListCheckOption(in, obj); } break; case 'd': if (!strcmp(cmd, "default")) { if (objc != 5 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info default "); if (obj->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(obj->nonposArgsTable, pattern); if (nonposArgs) { return ListDefaultFromOrdinaryArgs(in, pattern, nonposArgs, ObjStr(objv[3]), objv[4]); } } if (nsp) return ListProcDefault(in, Tcl_Namespace_cmdTable(nsp), pattern, ObjStr(objv[3]), objv[4]); else return TCL_OK; } break; case 'f': if (!strcmp(cmd, "filter")) { int withGuards = 0, withOrder = 0; if (objc-modifiers > 3) return XOTclObjErrArgCnt(in, obj->cmdName, "info filter ?-guards? ?-order? ?pat?"); if (modifiers > 0) { withGuards = checkForModifier(objv, modifiers, "-guards"); withOrder = checkForModifier(objv, modifiers, "-order"); if (withGuards == 0 && withOrder == 0) return XOTclVarErrMsg(in, "info filter: unknown modifier ", ObjStr(objv[2]), (char *) NULL); /* if (withGuards && withOrder) return XOTclVarErrMsg(in, "info filter: cannot use -guards and -order together", ObjStr(objv[2]), (char *) NULL); */ } if (withOrder) { if (!(obj->flags & XOTCL_FILTER_ORDER_VALID)) FilterComputeDefined(in, obj); return FilterInfo(in, obj->filterOrder, pattern, withGuards, 1); } return opt ? FilterInfo(in, opt->filters, pattern, withGuards, 0) : TCL_OK; } else if (!strcmp(cmd, "filterguard")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info filterguard filter"); return opt ? GuardList(in, opt->filters, pattern) : TCL_OK; } else if (!strcmp(cmd, "forward")) { int argc = objc-modifiers; int definition; if (argc < 2 || argc > 3) return XOTclObjErrArgCnt(in, obj->cmdName, "info forward ?-definition? ?name?"); definition = checkForModifier(objv, modifiers, "-definition"); if (nsp) return forwardList(in, Tcl_Namespace_cmdTable(nsp), pattern, definition); else return TCL_OK; } break; case 'h': if (!strcmp(cmd, "hasNamespace")) { Tcl_SetBooleanObj(Tcl_GetObjResult(in), nsp != NULL); return TCL_OK; } break; case 'i': if (!strcmp(cmd, "invar")) { if (objc != 2 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info invar"); if (opt && opt->assertions) Tcl_SetObjResult(in, AssertionList(in, opt->assertions->invariants)); return TCL_OK; } else if (!strcmp(cmd, "info")) { if (objc > 2 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info info"); return ListInfo(in, GetXOTclClassFromObj(in,obj->cmdName,NULL,0) == TCL_OK); } break; case 'm': if (!strcmp(cmd, "mixin")) { int withOrder = 0, withGuards = 0; if (objc-modifiers > 3) return XOTclObjErrArgCnt(in, obj->cmdName, "info mixin ?-guards? ?-order? ?class?"); if (modifiers > 0) { withOrder = checkForModifier(objv, modifiers, "-order"); withGuards = checkForModifier(objv, modifiers, "-guards"); if (withOrder == 0 && withGuards == 0) return XOTclVarErrMsg(in, "info mixin: unknown modifier . ", ObjStr(objv[2]), (char *) NULL); } if (withOrder) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); return MixinInfo(in, obj->mixinOrder, pattern, withGuards); } return opt ? MixinInfo(in, opt->mixins, pattern, withGuards) : TCL_OK; } else if (!strcmp(cmd, "mixinguard")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info mixinguard mixin"); return opt ? GuardList(in, opt->mixins, pattern) : TCL_OK; } else if (!strcmp(cmd, "methods")) { int noprocs = 0, nocmds = 0, nomixins = 0, inContext = 0; if (objc-modifiers > 3) return XOTclObjErrArgCnt(in, obj->cmdName, "info methods ?-noprocs? ?-nocmds? ?-nomixins? ?-incontext? ?pat?"); if (modifiers > 0) { noprocs = checkForModifier(objv, modifiers, "-noprocs"); nocmds = checkForModifier(objv, modifiers, "-nocmds"); nomixins = checkForModifier(objv, modifiers, "-nomixins"); inContext = checkForModifier(objv, modifiers, "-incontext"); } return ListMethods(in, obj, pattern, noprocs, nocmds, nomixins, inContext); } #ifdef XOTCL_METADATA else if (!strcmp(cmd, "metadata")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info metadata ?pat?"); return ListKeys(in, &obj->metaData, pattern); } #endif break; case 'n': if (!strcmp(cmd, "nonposargs")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info nonposargs "); if (obj->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(obj->nonposArgsTable, pattern); if (nonposArgs) { Tcl_SetObjResult(in, NonposArgsFormat(in, nonposArgs->nonposArgs)); } } return TCL_OK; } break; case 'p': if (!strcmp(cmd, "procs")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info procs ?pat?"); if (nsp) return ListMethodKeys(in, Tcl_Namespace_cmdTable(nsp), pattern, /*noProcs*/ 0, /*noCmds*/ 1, /* noDups */ 0, 0 ); else return TCL_OK; } else if (!strcmp(cmd, "parent")) { if (objc > 2 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info parent"); return ListParent(in, obj); } else if (!strcmp(cmd, "pre")) { XOTclProcAssertion* procs; if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info pre "); if (opt) { procs = AssertionFindProcs(opt->assertions, ObjStr(objv[2])); if (procs) Tcl_SetObjResult(in, AssertionList(in, procs->pre)); } return TCL_OK; } else if (!strcmp(cmd, "post")) { XOTclProcAssertion* procs; if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info post "); if (opt) { procs = AssertionFindProcs(opt->assertions, ObjStr(objv[2])); if (procs) Tcl_SetObjResult(in, AssertionList(in, procs->post)); } return TCL_OK; } else if (!strcmp(cmd, "precedence")) { return ListPrecedence(in, obj, pattern); } break; case 'v': if (!strcmp(cmd, "vars")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, obj->cmdName, "info vars ?pat?"); return ListVars(in, obj, pattern); } break; } return XOTclErrBadVal(in, "info", "an info option (use 'info info' to list all info options)", cmd); } static int XOTclOProcMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; char *argStr, *bdyStr, *name; XOTclObjectOpt *opt; int incr = 0, result = TCL_OK; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 4 || objc > 7) return XOTclObjErrArgCnt(in, obj->cmdName, "proc name ?non-positional-args? args body ?preAssertion postAssertion?"); if (objc == 5 || objc == 7) { incr = 1; } argStr = ObjStr(objv[2 + incr]); bdyStr = ObjStr(objv[3 + incr]); name = ObjStr(objv[1 + incr]); if (*argStr == 0 && *bdyStr == 0) { opt = obj->opt; if (opt) AssertionRemoveProc(opt->assertions, name); if (obj->nsPtr) NSDeleteCmd(in, obj->nsPtr, name); } else { XOTclAssertionStore* aStore = NULL; if (objc > 5) { opt = XOTclRequireObjectOpt(obj); if (!opt->assertions) opt->assertions = AssertionCreateStore(); aStore = opt->assertions; } requireObjNamespace(in, obj); result = MakeProc(obj->nsPtr, aStore, &(obj->nonposArgsTable), in, objc, (Tcl_Obj **) objv, obj); } /* could be a filter => recompute filter order */ FilterComputeDefined(in, obj); return result; } static int XOTclONoinitMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 1) return XOTclObjErrArgCnt(in, obj->cmdName, "noninit"); obj->flags |= XOTCL_INIT_CALLED; return TCL_OK; } Tcl_Obj* XOTclOSetInstVar(XOTcl_Object *obj, Tcl_Interp *in, Tcl_Obj *name, Tcl_Obj *value, int flgs) { return XOTclOSetInstVar2(obj, in, name, (Tcl_Obj *)NULL, value, (flgs|TCL_PARSE_PART1)); } Tcl_Obj* XOTclOGetInstVar(XOTcl_Object *obj, Tcl_Interp *in, Tcl_Obj *name, int flgs) { return XOTclOGetInstVar2(obj, in, name, (Tcl_Obj *)NULL, (flgs|TCL_PARSE_PART1)); } int XOTclUnsetInstVar(XOTcl_Object *obj, Tcl_Interp *in, char *name, int flgs) { return XOTclUnsetInstVar2 (obj, in, name,(char *)NULL, flgs); } extern int XOTclCreateObject(Tcl_Interp *in, Tcl_Obj *name, XOTcl_Class *cli) { XOTclClass *cl = (XOTclClass*) cli; int result; INCR_REF_COUNT(name); result = XOTclCallMethodWithArgs((ClientData)cl, in, XOTclGlobalObjects[XOTE_CREATE], name, 1, 0, 0); DECR_REF_COUNT(name); return result; } extern int XOTclCreateClass(Tcl_Interp *in, Tcl_Obj *name, XOTcl_Class *cli) { XOTclClass *cl = (XOTclClass*) cli; int result; INCR_REF_COUNT(name); result = XOTclCallMethodWithArgs((ClientData)cl, in, XOTclGlobalObjects[XOTE_CREATE], name, 1, 0, 0); DECR_REF_COUNT(name); return result; } int XOTclDeleteObject(Tcl_Interp *in, XOTcl_Object *obji) { XOTclObject *obj = (XOTclObject*) obji; return callMethod((ClientData)obj, in, XOTclGlobalObjects[XOTE_DESTROY],2,0,0); } int XOTclDeleteClass(Tcl_Interp *in, XOTcl_Class *cli) { XOTclClass *cl = (XOTclClass*) cli; return callMethod((ClientData)cl, in, XOTclGlobalObjects[XOTE_DESTROY],2,0,0); } extern Tcl_Obj* XOTclOSetInstVar2(XOTcl_Object *obji, Tcl_Interp *in, Tcl_Obj *name1, Tcl_Obj *name2, Tcl_Obj *value, int flgs) { XOTclObject *obj = (XOTclObject*) obji; Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); if (obj->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_ObjSetVar2(in, name1, name2, value, flgs); XOTcl_PopFrame(in, obj); return result; } extern int XOTclUnsetInstVar2(XOTcl_Object *obji, Tcl_Interp *in, char *name1, char *name2, int flgs) { XOTclObject *obj = (XOTclObject*) obji; int result; XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); if (obj->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_UnsetVar2(in, name1, name2, flgs); XOTcl_PopFrame(in, obj); return result; } static int GetInstVarIntoCurrentScope(Tcl_Interp *in, XOTclObject *obj, Tcl_Obj *varName, Tcl_Obj *newName) { Var *varPtr = NULL, *otherPtr = NULL, *arrayPtr; int new; Tcl_CallFrame *varFramePtr; TclVarHashTable *tablePtr; XOTcl_FrameDecls; int flgs = TCL_LEAVE_ERR_MSG | /* PARSE_PART1 needed for 8.0.5 */ TCL_PARSE_PART1; XOTcl_PushFrame(in, obj); if (obj->nsPtr) { flgs = flgs|TCL_NAMESPACE_ONLY; } otherPtr = XOTclObjLookupVar(in, varName, (char *) NULL, flgs, "define", /*createPart1*/ 1, /*createPart2*/ 1, &arrayPtr); XOTcl_PopFrame(in, obj); if (otherPtr == NULL) { return XOTclVarErrMsg(in, "can't make instvar ", ObjStr(varName), ": can't find variable on ", ObjStr(obj->cmdName), (char *) NULL); } /* * if newName == NULL -> there is no alias, use varName * as target link name */ if (newName == NULL) { /* * Variable link into namespace cannot be an element in an array. * see Tcl_VariableObjCmd ... */ if (arrayPtr) { return XOTclVarErrMsg(in, "can't make instvar ", ObjStr(varName), " on ", ObjStr(obj->cmdName), ": variable cannot be an element in an array;", " use an alias or objeval.", (char *) NULL); } newName = varName; } varFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(in); /* * If we are executing inside a Tcl procedure, create a local * variable linked to the new namespace variable "varName". */ if (varFramePtr != NULL && Tcl_CallFrame_isProcCallFrame(varFramePtr)) { Proc *procPtr = Tcl_CallFrame_procPtr(varFramePtr); int localCt = procPtr->numCompiledLocals; CompiledLocal *localPtr = procPtr->firstLocalPtr; Var *localVarPtr = Tcl_CallFrame_compiledLocals(varFramePtr); char *newNameString = ObjStr(newName); int i, nameLen = strlen(newNameString); for (i = 0; i < localCt; i++) { /* look in compiled locals */ /* fprintf(stderr,"%d of %d %s flags %x not isTemp %d\n",i,localCt, localPtr->name,localPtr->flags, !TclIsCompiledLocalTemporary(localPtr));*/ if (!TclIsCompiledLocalTemporary(localPtr)) { char *localName = localPtr->name; if ((newNameString[0] == localName[0]) && (nameLen == localPtr->nameLength) && (strcmp(newNameString, localName) == 0)) { varPtr = getNthVar(localVarPtr,i); new = 0; break; } } localPtr = localPtr->nextPtr; } if (varPtr == NULL) { /* look in frame's local var hashtable */ tablePtr = Tcl_CallFrame_varTablePtr(varFramePtr); if (tablePtr == NULL) { tablePtr = (TclVarHashTable *) ckalloc(varHashTableSize); InitVarHashTable(tablePtr, NULL); Tcl_CallFrame_varTablePtr(varFramePtr) = tablePtr; } varPtr = VarHashCreateVar(tablePtr, newName, &new); } /* * if we define an alias (newName != varName), be sure that * the target does not exist already */ if (!new) { if (varPtr == otherPtr) return XOTclVarErrMsg(in, "can't instvar to variable itself", (char *) NULL); if (TclIsVarLink(varPtr)) { /* we try to make the same instvar again ... this is ok */ Var *linkPtr = valueOfVar(Var,varPtr,linkPtr); if (linkPtr == otherPtr) { return TCL_OK; } /*fprintf(stderr, "linkvar flags=%x\n",linkPtr->flags); panic("new linkvar %s... When does this happen?",newNameString,NULL);*/ /* We have already a variable with the same name imported from a different object. Get rid of this old variable */ VarHashRefCount(linkPtr)--; if (TclIsVarUndefined(linkPtr)) { CleanupVar(linkPtr, (Var *) NULL); } } else if (!TclIsVarUndefined(varPtr)) { return XOTclVarErrMsg(in, "variable '", ObjStr(newName), "' exists already", (char *) NULL); } else if (TclIsVarTraced(varPtr)) { return XOTclVarErrMsg(in, "variable '", ObjStr(newName), "' has traces: can't use for instvar", (char *) NULL); } } TclSetVarLink(varPtr); TclClearVarUndefined(varPtr); #if FORWARD_COMPATIBLE if (forwardCompatibleMode) { Var85 *vPtr = (Var85 *)varPtr; vPtr->value.linkPtr = (Var85 *)otherPtr; } else { varPtr->value.linkPtr = otherPtr; } #else varPtr->value.linkPtr = otherPtr; #endif VarHashRefCount(otherPtr)++; /* { Var85 *p = (Var85 *)varPtr; fprintf(stderr,"defining an alias var='%s' in obj %s fwd %d flags %x isLink %d isTraced %d isUndefined %d\n", ObjStr(newName), ObjStr(obj->cmdName), forwardCompatibleMode, varFlags(varPtr), TclIsVarLink(varPtr), TclIsVarTraced(varPtr), TclIsVarUndefined(varPtr)); } */ } return TCL_OK; } static int XOTclOInstVarMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]); extern int XOTclInstVar(XOTcl_Object *obji, Tcl_Interp *in, char *name, char *destName) { XOTclObject *obj = (XOTclObject*) obji; int result; Tcl_Obj *alias = 0; ALLOC_ON_STACK(Tcl_Obj*,2, objv); objv[0] = XOTclGlobalObjects[XOTE_INSTVAR]; objv[1] = Tcl_NewStringObj(name, -1); INCR_REF_COUNT(objv[1]); if (destName != 0) { alias = Tcl_NewStringObj(destName, -1); INCR_REF_COUNT(alias); Tcl_ListObjAppendElement(in, objv[1], alias); } result = XOTclOInstVarMethod((ClientData) obj, in, 2, objv); if (destName != 0) { DECR_REF_COUNT(alias); } DECR_REF_COUNT(objv[1]); FREE_ON_STACK(objv); return result; } extern void XOTclRemovePMethod(Tcl_Interp *in, XOTcl_Object *obji, char *nm) { XOTclObject *obj = (XOTclObject*) obji; if (obj->nsPtr) NSDeleteCmd(in, obj->nsPtr, nm); } extern void XOTclRemoveIMethod(Tcl_Interp *in, XOTcl_Class *cli, char *nm) { XOTclClass *cl = (XOTclClass*) cli; NSDeleteCmd(in, cl->nsPtr, nm); } /* * obj/cl ClientData setter/getter */ extern void XOTclSetObjClientData(XOTcl_Object *obji, ClientData data) { XOTclObject *obj = (XOTclObject*) obji; XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); opt->clientData = data; } extern ClientData XOTclGetObjClientData(XOTcl_Object *obji) { XOTclObject *obj = (XOTclObject*) obji; return (obj && obj->opt) ? obj->opt->clientData : 0; } extern void XOTclSetClassClientData(XOTcl_Class *cli, ClientData data) { XOTclClass *cl = (XOTclClass*) cli; XOTclRequireClassOpt(cl); cl->opt->clientData = data; } extern ClientData XOTclGetClassClientData(XOTcl_Class *cli) { XOTclClass *cl = (XOTclClass*) cli; return (cl && cl->opt) ? cl->opt->clientData : 0; } static int setInstVar(Tcl_Interp *in, XOTclObject *obj, Tcl_Obj *name, Tcl_Obj* value) { Tcl_Obj *result; int flags = (obj->nsPtr) ? TCL_LEAVE_ERR_MSG|TCL_NAMESPACE_ONLY : TCL_LEAVE_ERR_MSG; XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); if (value == NULL) { result = Tcl_ObjGetVar2(in, name, NULL, flags); } else { result = Tcl_ObjSetVar2(in, name, NULL, value, flags); } XOTcl_PopFrame(in, obj); if (result) { Tcl_SetObjResult(in, result); return TCL_OK; } return TCL_ERROR; } static int XOTclOSetMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc > 3) XOTclObjErrArgCnt(in, obj->cmdName, "set var ?value?"); return setInstVar(in, obj, objv[1], objc == 3 ? objv[2] : NULL); } static int XOTclSetterMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc > 2) return XOTclObjErrArgCnt(in, obj->cmdName, "parameter ?value?"); return setInstVar(in, obj, objv[0], objc == 2 ? objv[1] : NULL); } static int XOTclOUpvarMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; Tcl_Obj *frameInfoObj = NULL; int i, result = TCL_ERROR; char *frameInfo; callFrameContext ctx = {0}; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "?level? otherVar localVar ?otherVar localVar ...?"); if (objc % 2 == 0) { frameInfo = ObjStr(objv[1]); i = 2; } else { frameInfoObj = computeLevelObj(in, CALLING_LEVEL); INCR_REF_COUNT(frameInfoObj); frameInfo = ObjStr(frameInfoObj); i = 1; } if (obj && (obj->filterStack || obj->mixinStack)) { CallStackUseActiveFrames(in, &ctx); } for ( ; i < objc; i += 2) { result = Tcl_UpVar2(in, frameInfo, ObjStr(objv[i]), NULL, ObjStr(objv[i+1]), 0 /*flags*/); if (result != TCL_OK) break; } if (frameInfoObj) { DECR_REF_COUNT(frameInfoObj); } CallStackRestoreSavedFrames(in, &ctx); return result; } static int XOTclOUplevelMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject *)cd; int i, result = TCL_ERROR; char *frameInfo = NULL; Tcl_CallFrame *framePtr = NULL, *savedVarFramePtr; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) { uplevelSyntax: return XOTclObjErrArgCnt(in, obj->cmdName, "?level? command ?arg ...?"); } /* * Find the level to use for executing the command. */ if (objc>2) { CallFrame *cf; frameInfo = ObjStr(objv[1]); result = TclGetFrame(in, frameInfo, &cf); if (result == -1) { return TCL_ERROR; } framePtr = (Tcl_CallFrame *)cf; i = result+1; } else { i = 1; } objc -= i; objv += i; if (objc == 0) { goto uplevelSyntax; } if (!framePtr) { XOTclCallStackContent *csc = XOTclCallStackFindLastInvocation(in, 1); if (csc) framePtr = csc->currentFramePtr; } savedVarFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(in); Tcl_Interp_varFramePtr(in) = (CallFrame *)framePtr; /* * Execute the residual arguments as a command. */ if (objc == 1) { result = Tcl_EvalObjEx(in, objv[0], TCL_EVAL_DIRECT); } else { /* * More than one argument: concatenate them together with spaces * between, then evaluate the result. Tcl_EvalObjEx will delete * the object when it decrements its refcount after eval'ing it. */ Tcl_Obj *objPtr = Tcl_ConcatObj(objc, objv); result = Tcl_EvalObjEx(in, objPtr, TCL_EVAL_DIRECT); } if (result == TCL_ERROR) { char msg[32 + TCL_INTEGER_SPACE]; sprintf(msg, "\n (\"uplevel\" body line %d)", in->errorLine); Tcl_AddObjErrorInfo(in, msg, -1); } /* * Restore the variable frame, and return. */ Tcl_Interp_varFramePtr(in) = (CallFrame *)savedVarFramePtr; return result; } static int forwardArg(Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[], Tcl_Obj *o, forwardCmdClientData *tcd, Tcl_Obj **out, Tcl_Obj **freeList, int *inputarg, int *mapvalue) { char *element = ObjStr(o), *p; int totalargs = objc + tcd->nr_args - 1; char c = *element, c1; p = element; if (c == '%' && *(element+1) == '@') { char *remainder = NULL; long pos; element += 2; pos = strtol(element,&remainder,0); /*fprintf(stderr,"strtol('%s) returned %ld '%s'\n",element,pos,remainder);*/ if (element == remainder && *element == 'e' && !strncmp(element,"end",3)) { pos = totalargs; remainder += 3; } if (element == remainder || abs(pos) > totalargs) { return XOTclVarErrMsg(in, "forward: invalid index specified in argument ", ObjStr(o), (char *) NULL); } if (!remainder || *remainder != ' ') { return XOTclVarErrMsg(in, "forward: invaild syntax in '", ObjStr(o), "' use: %@ ",(char *) NULL); } element = ++remainder; if (pos<0) pos = totalargs + pos; /*fprintf(stderr,"remainder = '%s' pos = %ld\n",remainder,pos);*/ *mapvalue = pos; element = remainder; c = *element; } /*fprintf(stderr,"c==%c element = '%s'\n",c,element);*/ if (c == '%') { Tcl_Obj *list = 0, **listElements; int nrargs = objc-1, nrElements = 0; c = *++element; c1 = *(element+1); if (c == 's' && !strcmp(element,"self")) { *out = tcd->obj->cmdName; } else if (c == 'p' && !strcmp(element,"proc")) { *out = objv[0]; } else if (c == '1' && (c1 == '\0' || c1 == ' ')) { /*fprintf(stderr, " nrargs=%d, subcommands=%d inputarg=%d, objc=%d\n", nrargs, tcd->nr_subcommands, inputarg, objc);*/ if (c1 != '\0') { if (Tcl_ListObjIndex(in, o, 1, &list) != TCL_OK) { return XOTclVarErrMsg(in, "forward: %1 must by a valid list, given: '", ObjStr(o), "'", (char *) NULL); } if (Tcl_ListObjGetElements(in, list, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(in, "forward: %1 contains invalid list '", ObjStr(list),"'", (char *) NULL); } } else if (tcd->subcommands) { /* deprecated part */ if (Tcl_ListObjGetElements(in, tcd->subcommands,&nrElements,&listElements) != TCL_OK) { return XOTclVarErrMsg(in, "forward: %1 contains invalid list '", ObjStr(list),"'", (char *) NULL); } } if (nrElements > nrargs) { /* insert default subcommand depending on number of arguments */ *out = listElements[nrargs]; } else if (objc<=1) { return XOTclObjErrArgCnt(in, objv[0], "no argument given"); } else { *out = objv[1]; *inputarg = 2; } } else if (c == 'a' && !strncmp(element,"argcl", 4)) { if (Tcl_ListObjIndex(in, o, 1, &list) != TCL_OK) { return XOTclVarErrMsg(in, "forward: %argclindex must by a valid list, given: '", ObjStr(o), "'", (char *) NULL); } if (Tcl_ListObjGetElements(in, list, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(in, "forward: %argclindex contains invalid list '", ObjStr(list),"'", (char *) NULL); } if (nrargs >= nrElements) { return XOTclVarErrMsg(in, "forward: not enough elements in specified list of ARGC argument ", ObjStr(o), (char *) NULL); } *out = listElements[nrargs]; } else if (c == '%') { Tcl_Obj *newarg = Tcl_NewStringObj(element,-1); *out = newarg; goto add_to_freelist; } else { /* evaluating given command */ int result; /*fprintf(stderr,"evaluating '%s'\n",element);*/ if ((result = Tcl_EvalEx(in, element, -1, 0)) != TCL_OK) return result; *out = Tcl_DuplicateObj(Tcl_GetObjResult(in)); /*fprintf(stderr,"result = '%s'\n",ObjStr(*out));*/ goto add_to_freelist; } } else { if (p == element) *out = o; else { Tcl_Obj *newarg = Tcl_NewStringObj(element,-1); *out = newarg; goto add_to_freelist; } } return TCL_OK; add_to_freelist: if (!*freeList) { *freeList = Tcl_NewListObj(1, out); INCR_REF_COUNT(*freeList); } else Tcl_ListObjAppendElement(in, *freeList, *out); return TCL_OK; } static int callForwarder(forwardCmdClientData *tcd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { ClientData cd; int result; XOTcl_FrameDecls; if (tcd->verbose) { Tcl_Obj* cmd = Tcl_NewListObj(objc, objv); fprintf(stderr,"calling %s\n", ObjStr(cmd)); DECR_REF_COUNT(cmd); } if (tcd->objscope) { XOTcl_PushFrame(in, tcd->obj); } if (tcd->objProc) { result = (tcd->objProc)(tcd->cd, in, objc, objv); } else if (tcd->cmdName->typePtr == &XOTclObjectType && XOTclObjConvertObject(in, tcd->cmdName, (void*)&cd) == TCL_OK) { /*fprintf(stderr, "XOTcl object %s, objc=%d\n", ObjStr(tcd->cmdName),objc);*/ result = ObjDispatch(cd, in, objc, objv, 0); } else { /*fprintf(stderr, "no XOTcl object %s\n", ObjStr(tcd->cmdName));*/ result = Tcl_EvalObjv(in, objc, objv, 0); } if (tcd->objscope) { XOTcl_PopFrame(in, tcd->obj); } return result; } static int XOTclForwardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { forwardCmdClientData *tcd = (forwardCmdClientData *)cd; int result, j, inputarg=1, outputarg=0; if (!tcd || !tcd->obj) return XOTclObjErrType(in, objv[0], "Object"); /* it is a c-method; establish a value for the currentFramePtr */ RUNTIME_STATE(in)->cs.top->currentFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(in); /* fprintf(stderr,"...setting currentFramePtr %p to %p (ForwardMethod)\n", RUNTIME_STATE(in)->cs.top->currentFramePtr, (Tcl_CallFrame *) Tcl_Interp_varFramePtr(in)); */ if (tcd->passthrough) { /* two short cuts for simple cases */ /* early binding, cmd* resolved, we have to care only for objscope */ return callForwarder(tcd, in, objc, objv); } else if (!tcd->args && *(ObjStr(tcd->cmdName)) != '%') { /* we have ony to replace the method name with the given cmd name */ ALLOC_ON_STACK(Tcl_Obj*,objc, ov); memcpy(ov,objv, sizeof(Tcl_Obj *)*objc); ov[0] = tcd->cmdName; result = callForwarder(tcd, in, objc, ov); FREE_ON_STACK(ov); return result; } else { Tcl_Obj **ov, *freeList=NULL; int totalargs = objc + tcd->nr_args + 3; ALLOC_ON_STACK(Tcl_Obj*,totalargs, OV); ALLOC_ON_STACK(int, totalargs, objvmap); ov = &OV[1]; if (tcd->needobjmap) { memset(objvmap, -1, sizeof(int)*totalargs); } #if 0 fprintf(stderr,"command %s (%p) objc=%d, subcommand=%d, args=%p, nrargs\n", ObjStr(objv[0]), tcd, objc, tcd->nr_subcommands, tcd->args ); #endif /* the first argument is always the command, to which we forward */ if ((result = forwardArg(in, objc, objv, tcd->cmdName, tcd, &ov[outputarg], &freeList, &inputarg, &objvmap[outputarg])) != TCL_OK) { goto exitforwardmethod; } outputarg++; if (tcd->args) { /* copy argument list from definition */ Tcl_Obj **listElements; int nrElements; Tcl_ListObjGetElements(in, tcd->args, &nrElements, &listElements); for (j=0; jnr_subcommands=%d size=%d\n", objc, tcd->nr_subcommands, objc+ 2 );*/ if (objc-inputarg>0) { /*fprintf(stderr, " copying remaining %d args starting at [%d]\n", objc-inputarg, outputarg);*/ memcpy(ov+outputarg, objv+inputarg, sizeof(Tcl_Obj *)*(objc-inputarg)); } else { /*fprintf(stderr, " nothing to copy, objc=%d, inputarg=%d\n", objc, inputarg);*/ } objc += outputarg - inputarg; #if 0 for(j=0; jneedobjmap) for (j=0; jpos) { for(i=j; i>pos; i--) { /*fprintf(stderr,"...moving right %d to %d\n",i-1,i);*/ ov[i] = ov[i-1]; objvmap[i] = objvmap[i-1]; } } else { for(i=j; i %s\n",pos,ObjStr(tmp)); */ ov[pos] = tmp; objvmap[pos] = -1; } if (tcd->prefix) { /* prepend a prefix for the subcommands to avoid name clashes */ Tcl_Obj *methodName = Tcl_DuplicateObj(tcd->prefix); Tcl_AppendObjToObj(methodName, ov[1]); ov[1] = methodName; INCR_REF_COUNT(ov[1]); } #if 0 for(j=0; jcmdName; result = callForwarder(tcd, in, objc, ov); if (tcd->prefix) {DECR_REF_COUNT(ov[1]);} exitforwardmethod: if (freeList) {DECR_REF_COUNT(freeList);} FREE_ON_STACK(objvmap); FREE_ON_STACK(OV); } return result; } static int XOTclOInstVarMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; Tcl_Obj **ov; int i, oc, result = TCL_OK; callFrameContext ctx = {0}; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "instvar ?vars?"); if (obj && (obj->filterStack || obj->mixinStack) ) { CallStackUseActiveFrames(in, &ctx); } if (!Tcl_Interp_varFramePtr(in)) { CallStackRestoreSavedFrames(in, &ctx); return XOTclVarErrMsg(in, "instvar used on ", ObjStr(obj->cmdName), ", but callstack is not in procedure scope", (char *) NULL); } for (i=1; icmdName, "vwait varname"); nameString = ObjStr(objv[1]); /* * Make sure the var table exists and the varname is in there */ if (NSRequireVariableOnObj(in, obj, nameString, flgs) == 0) return XOTclVarErrMsg(in, "Can't lookup (and create) variable ", nameString, " on ", ObjStr(obj->cmdName), (char *) NULL); XOTcl_PushFrame(in, obj); /* * much of this is copied from Tcl, since we must avoid * access with flag TCL_GLOBAL_ONLY ... doesn't work on * obj->varTable vars */ if (Tcl_TraceVar(in, nameString, flgs, (Tcl_VarTraceProc *)VwaitVarProc, (ClientData) &done) != TCL_OK) { return TCL_ERROR; } done = 0; foundEvent = 1; while (!done && foundEvent) { foundEvent = Tcl_DoOneEvent(TCL_ALL_EVENTS); } Tcl_UntraceVar(in, nameString, flgs, (Tcl_VarTraceProc *)VwaitVarProc, (ClientData) &done); XOTcl_PopFrame(in, obj); /* * Clear out the interpreter's result, since it may have been set * by event handlers. */ Tcl_ResetResult(in); if (!foundEvent) { return XOTclVarErrMsg(in, "can't wait for variable '", nameString, "': would wait forever", (char *) NULL); } return TCL_OK; } static int XOTclOInvariantsMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclObjectOpt *opt; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "invar "); opt = XOTclRequireObjectOpt(obj); if (opt->assertions) TclObjListFreeList(opt->assertions->invariants); else opt->assertions = AssertionCreateStore(); opt->assertions->invariants = AssertionNewList(in, objv[1]); return TCL_OK; } static int XOTclOAutonameMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; int instanceOpt = 0, resetOpt = 0; Tcl_Obj *autoname; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc == 3) { instanceOpt = (strcmp(ObjStr(objv[1]), "-instance") == 0); resetOpt = (strcmp(ObjStr(objv[1]), "-reset") == 0); } if ((objc < 2 || objc > 3) || (objc == 3 && !instanceOpt && !resetOpt)) return XOTclObjErrArgCnt(in, obj->cmdName, "autoname [-instance | -reset] name"); autoname = AutonameIncr(in, objv[objc-1], obj, instanceOpt, resetOpt); if (autoname) { Tcl_SetObjResult(in, autoname); DECR_REF_COUNT(autoname); } else return XOTclVarErrMsg(in, "Autoname failed. Probably format string (with %) was not well-formed", (char *) NULL); return TCL_OK; } static int XOTclOCheckMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; int ocArgs; Tcl_Obj **ovArgs; int i; XOTclObjectOpt *opt; /*fprintf(stderr,"checkmethod\n");*/ if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 2) return XOTclObjErrArgCnt(in, obj->cmdName, "check (?all? ?pre? ?post? ?invar? ?instinvar?)"); opt = XOTclRequireObjectOpt(obj); opt->checkoptions = CHECK_NONE; if (Tcl_ListObjGetElements(in, objv[1], &ocArgs, &ovArgs) == TCL_OK && ocArgs > 0) { for (i = 0; i < ocArgs; i++) { char *option = ObjStr(ovArgs[i]); if (option != 0) { switch (*option) { case 'i': if (strcmp(option, "instinvar") == 0) { opt->checkoptions |= CHECK_CLINVAR; } else if (strcmp(option, "invar") == 0) { opt->checkoptions |= CHECK_OBJINVAR; } break; case 'p': if (strcmp(option, "pre") == 0) { opt->checkoptions |= CHECK_PRE; } else if (strcmp(option, "post") == 0) { opt->checkoptions |= CHECK_POST; } break; case 'a': if (strcmp(option, "all") == 0) { opt->checkoptions |= CHECK_ALL; } break; } } } } if (opt->checkoptions == CHECK_NONE && ocArgs>0) { return XOTclVarErrMsg(in, "Unknown check option in command '", ObjStr(obj->cmdName), " ", ObjStr(objv[0]), " ", ObjStr(objv[1]), "', valid: all pre post invar instinvar", (char *) NULL); } Tcl_ResetResult(in); return TCL_OK; } static int XOTclConfigureCommand(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { int bool, opt, result = TCL_OK; static CONST char *opts[] = { "filter", "softrecreate", NULL }; enum subCmdIdx { filterIdx, softrecreateIdx }; if (objc < 2 || objc>3) return XOTclObjErrArgCnt(in, objv[0], "::xotcl::configure filter|softrecreate ?on|off?"); if (Tcl_GetIndexFromObj(in, objv[1], opts, "option", 0, &opt) != TCL_OK) { return TCL_ERROR; } if (objc == 3) { result = Tcl_GetBooleanFromObj(in, objv[2], &bool); } if (result == TCL_OK) { switch (opt) { case filterIdx: Tcl_SetBooleanObj(Tcl_GetObjResult(in), (RUNTIME_STATE(in)->doFilters)); if (objc == 3) RUNTIME_STATE(in)->doFilters = bool; break; case softrecreateIdx: Tcl_SetBooleanObj(Tcl_GetObjResult(in), (RUNTIME_STATE(in)->doSoftrecreate)); if (objc == 3) RUNTIME_STATE(in)->doSoftrecreate = bool; break; } } return result; } static int XOTclObjscopedMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { aliasCmdClientData *tcd = (aliasCmdClientData *)cd; XOTclObject *obj = tcd->obj; int rc; XOTcl_FrameDecls; /*fprintf(stderr,"objscopedMethod obj=%p, ptr=%p\n",obj,tcd->objProc);*/ XOTcl_PushFrame(in, obj); rc = (tcd->objProc)(tcd->cd, in, objc, objv); XOTcl_PopFrame(in, obj); return rc; } static void aliasCmdDeleteProc(ClientData cd) { aliasCmdClientData *tcd = (aliasCmdClientData *)cd; if (tcd->cmdName) {DECR_REF_COUNT(tcd->cmdName);} /*fprintf(stderr,"aliasCmdDeleteProc\n");*/ FREE(aliasCmdClientData, tcd); } static int XOTclAliasCommand(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = NULL; XOTclClass *cl = NULL; Tcl_Command cmd = NULL; Tcl_ObjCmdProc *objProc; char allocation, *methodName, *optionName; Tcl_CmdDeleteProc* dp = NULL; aliasCmdClientData *tcd = NULL; int objscope = 0, i; if (objc < 4 || objc > 6) { return XOTclObjErrArgCnt(in, objv[0], "| ?-objscope? ?-per-object? "); } GetXOTclClassFromObj(in, objv[1], &cl, 1); if (!cl) { XOTclObjConvertObject(in, objv[1], &obj); if (!obj) return XOTclObjErrType(in, objv[1], "Class|Object"); allocation = 'o'; } else { allocation = 'c'; } methodName = ObjStr(objv[2]); for (i=3; i<5; i++) { optionName = ObjStr(objv[i]); if (*optionName != '-') break; if (!strcmp("-objscope",optionName)) { objscope = 1; } else if (!strcmp("-per-object",optionName)) { allocation = 'o'; } else { return XOTclErrBadVal(in, "::xotcl::alias", "option -objscope or -per-object", optionName); } } cmd = Tcl_GetCommandFromObj(in, objv[i]); if (cmd == NULL) return XOTclVarErrMsg(in, "cannot lookup command '", ObjStr(objv[i]), "'", (char *) NULL); objProc = Tcl_Command_objProc(cmd); if (objc>i+1) { return XOTclVarErrMsg(in, "invalid argument '", ObjStr(objv[i+1]), "'", (char *) NULL); } if (objscope) { tcd = NEW(aliasCmdClientData); tcd->cmdName = 0; tcd->obj = allocation == 'c' ? &cl->object : obj; tcd->objProc = objProc; tcd->cd = Tcl_Command_objClientData(cmd); objProc = XOTclObjscopedMethod; dp = aliasCmdDeleteProc; } if (allocation == 'c') { XOTclAddIMethod(in, (XOTcl_Class*)cl, methodName, objProc, tcd, dp); } else { XOTclAddPMethod(in, (XOTcl_Object*)obj, methodName, objProc, tcd, dp); } return TCL_OK; } static int XOTclSetInstvarCommand(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj; if (objc < 3 || objc > 4) return XOTclObjErrArgCnt(in, objv[0], "::xotcl::instvarset obj var ?value?"); XOTclObjConvertObject(in, objv[1], &obj); if (!obj) return XOTclObjErrType(in, objv[0], "Object"); return setInstVar(in, obj ,objv[2], objc == 4 ? objv[3] : NULL); } static int XOTclSetRelationCommand(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { int oc; Tcl_Obj **ov; XOTclObject *obj = NULL; XOTclClass *cl = NULL; XOTclObjectOpt *objopt = NULL; XOTclClassOpt *clopt = NULL; int i, opt; static CONST char *opts[] = { "mixin", "instmixin", "filter", "instfilter", "class", "superclass", NULL }; enum subCmdIdx { mixinIdx, instmixinIdx, filterIdx, instfilterIdx, classIdx, superclassIdx }; if (objc < 3) return XOTclObjErrArgCnt(in, objv[0], "::xotcl::setrelation obj reltype classes"); if (Tcl_GetIndexFromObj(in, objv[2], opts, "relation type", 0, &opt) != TCL_OK) { return TCL_ERROR; } switch (opt) { case mixinIdx: case filterIdx: { XOTclObjConvertObject(in, objv[1], &obj); if (!obj) return XOTclObjErrType(in, objv[1], "Object"); if (Tcl_ListObjGetElements(in, objv[3], &oc, &ov) != TCL_OK) return TCL_ERROR; objopt = XOTclRequireObjectOpt(obj); break; } case instmixinIdx: case instfilterIdx: { GetXOTclClassFromObj(in, objv[1], &cl, 1); if (!cl) return XOTclObjErrType(in, objv[1], "Class"); if (Tcl_ListObjGetElements(in, objv[3], &oc, &ov) != TCL_OK) return TCL_ERROR; clopt = XOTclRequireClassOpt(cl); break; } case superclassIdx: { GetXOTclClassFromObj(in, objv[1], &cl, 1); if (!cl) return XOTclObjErrType(in, objv[1], "Class"); if (Tcl_ListObjGetElements(in, objv[3], &oc, &ov) != TCL_OK) return TCL_ERROR; return SuperclassAdd(in, cl, oc, ov, objv[3]); } case classIdx: { XOTclObjConvertObject(in, objv[1], &obj); if (!obj) return XOTclObjErrType(in, objv[1], "Object"); GetXOTclClassFromObj(in, objv[3], &cl, 1); if (!cl) return XOTclErrBadVal(in, "class", "a class", ObjStr(objv[1])); return changeClass(in, obj, cl); } } switch (opt) { case mixinIdx: { if (objopt->mixins) CmdListRemoveList(&objopt->mixins, GuardDel); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; /* * since mixin procs may be used as filters -> we have to invalidate */ obj->flags &= ~XOTCL_FILTER_ORDER_VALID; for (i = 0; i < oc; i++) { if (MixinAdd(in, &objopt->mixins, ov[i]) != TCL_OK) return TCL_ERROR; } MixinComputeDefined(in, obj); FilterComputeDefined(in, obj); break; } case filterIdx: { if (objopt->filters) CmdListRemoveList(&objopt->filters, GuardDel); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; for (i = 0; i < oc; i ++) { if (FilterAdd(in, &objopt->filters, ov[i], obj, 0) != TCL_OK) return TCL_ERROR; } /*FilterComputeDefined(in, obj);*/ break; } case instmixinIdx: { if (clopt->instmixins) CmdListRemoveList(&clopt->instmixins, GuardDel); MixinInvalidateObjOrders(in, cl); /* * since mixin procs may be used as filters -> we have to invalidate */ FilterInvalidateObjOrders(in, cl); for (i = 0; i < oc; i++) { if (MixinAdd(in, &clopt->instmixins, ov[i]) != TCL_OK) return TCL_ERROR; } break; } case instfilterIdx: { if (clopt->instfilters) CmdListRemoveList(&clopt->instfilters, GuardDel); FilterInvalidateObjOrders(in, cl); for (i = 0; i < oc; i ++) { if (FilterAdd(in, &clopt->instfilters, ov[i], 0, cl) != TCL_OK) return TCL_ERROR; } break; } } return TCL_OK; } static int XOTclOMixinGuardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclCmdList* h; XOTclObjectOpt *opt; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 3) return XOTclObjErrArgCnt(in, obj->cmdName, "mixinguard mixin guards"); opt = obj->opt; if (opt && opt->mixins) { XOTclClass *mixinCl = XOTclpGetClass(in, ObjStr(objv[1])); Tcl_Command mixinCmd = NULL; if (mixinCl) { mixinCmd = Tcl_GetCommandFromObj(in, mixinCl->object.cmdName); } if (mixinCmd) { h = CmdListFindCmdInList(mixinCmd, opt->mixins); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(in, h, objv[2]); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; return TCL_OK; } } } return XOTclVarErrMsg(in, "Mixinguard: can't find mixin ", ObjStr(objv[1]), " on ", ObjStr(obj->cmdName), (char *) NULL); } static int XOTclOFilterGuardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclCmdList* h; XOTclObjectOpt *opt; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 3) return XOTclObjErrArgCnt(in, obj->cmdName, "filterguard filtername filterGuards"); opt = obj->opt; if (opt && opt->filters) { h = CmdListFindNameInList(in, ObjStr(objv[1]), opt->filters); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(in, h, objv[2]); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; return TCL_OK; } } return XOTclVarErrMsg(in, "Filterguard: can't find filter ", ObjStr(objv[1]), " on ", ObjStr(obj->cmdName), (char *) NULL); } /* * Searches for filter on [self] and returns fully qualified name * if it is not found it returns an empty string */ static int XOTclOFilterSearchMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; char *methodName; XOTclCmdList *cmdList; XOTclClass *fcl; XOTclObject *fobj; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "filtersearch name"); Tcl_ResetResult(in); if (!(obj->flags & XOTCL_FILTER_ORDER_VALID)) FilterComputeDefined(in, obj); if (!(obj->flags & XOTCL_FILTER_ORDER_DEFINED)) return TCL_OK; methodName = ObjStr(objv[1]); cmdList = obj->filterOrder; while (cmdList) { CONST84 char *filterName = Tcl_GetCommandName(in, cmdList->cmdPtr); if (filterName[0] == methodName[0] && !strcmp(filterName, methodName)) break; cmdList = cmdList->next; } if (!cmdList) return TCL_OK; fcl = cmdList->clorobj; if (fcl && XOTclObjectIsClass(&fcl->object)) { fobj = 0; } else { fobj = (XOTclObject*)fcl; fcl = 0; } Tcl_SetObjResult(in, getFullProcQualifier(in, methodName, fobj, fcl, cmdList->cmdPtr)); return TCL_OK; } static int XOTclOProcSearchMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; XOTclClass *pcl = NULL; Tcl_Command cmd = 0; char *simpleName, *methodName; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "procsearch name"); Tcl_ResetResult(in); methodName = ObjStr(objv[1]); if (obj->nsPtr) cmd = FindMethod(methodName, obj->nsPtr); if (!cmd) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(in, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList* mixinList = obj->mixinOrder; while (mixinList) { XOTclClass *mcl = XOTclpGetClass(in, (char *)Tcl_GetCommandName(in, mixinList->cmdPtr)); if (mcl && (pcl = SearchCMethod(mcl, methodName, &cmd))) { break; } mixinList = mixinList->next; } } } if (!cmd && obj->cl) pcl = SearchCMethod(obj->cl, methodName, &cmd); if (cmd) { XOTclObject *pobj = pcl ? NULL : obj; simpleName = (char *)Tcl_GetCommandName(in, cmd); Tcl_SetObjResult(in, getFullProcQualifier(in, simpleName, pobj, pcl, cmd)); } return TCL_OK; } static int XOTclORequireNamespaceMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc != 1) return XOTclObjErrArgCnt(in, obj->cmdName, "requireNamespace"); requireObjNamespace(in, obj); return TCL_OK; } typedef enum {NO_DASH, SKALAR_DASH, LIST_DASH} dashArgType; static dashArgType isDashArg(Tcl_Interp *in, Tcl_Obj *obj, char **methodName, int *objc, Tcl_Obj **objv[]) { char *flag; static Tcl_ObjType *listType = NULL; assert(obj); /* fetch list type, if not set already; if used on more places, this should be moved into the interpreter state */ if (listType == NULL) { #if defined(PRE82) Tcl_Obj *tmp = Tcl_NewListObj(1, &obj); listType = tmp->typePtr; DECR_REF_COUNT(tmp); #else static XOTclMutex initMutex = 0; XOTclMutexLock(&initMutex); if (listType == NULL) { listType = Tcl_GetObjType("list"); /*fprintf(stderr, "fetching listType=%p\n",listType);*/ } XOTclMutexUnlock(&initMutex); #endif } if (obj->typePtr == listType) { if (Tcl_ListObjGetElements(in, obj, objc, objv) == TCL_OK && *objc>1) { flag = ObjStr(*objv[0]); /*fprintf(stderr, "we have a list starting with '%s'\n", flag);*/ if (*flag == '-') { *methodName = flag+1; return LIST_DASH; } } } flag = ObjStr(obj); /*fprintf(stderr, "we have a scalar '%s'\n", flag);*/ if (*flag == '-' && isalpha((int)*((flag)+1))) { *methodName = flag+1; *objc = 1; return SKALAR_DASH; } return NO_DASH; } static int callConfigureMethod(Tcl_Interp *in, XOTclObject *obj, char *methodName, int argc, Tcl_Obj *CONST argv[]) { int result; Tcl_Obj *method = Tcl_NewStringObj(methodName,-1); /*fprintf(stderr,"callConfigureMethod method %s->'%s' argc %d\n", ObjStr(obj->cmdName), methodName, argc);*/ if (isInitString(methodName)) obj->flags |= XOTCL_INIT_CALLED; INCR_REF_COUNT(method); result = callMethod((ClientData)obj, in, method, argc, argv, XOTCL_CM_NO_UNKNOWN); DECR_REF_COUNT(method); /*fprintf(stderr, "method '%s' called args: %d o=%p, result=%d\n", methodName, argc+1, obj, result); */ if (result != TCL_OK) { Tcl_Obj *res = Tcl_DuplicateObj(Tcl_GetObjResult(in)); /* save the result */ INCR_REF_COUNT(res); XOTclVarErrMsg(in, ObjStr(res), " during '", ObjStr(obj->cmdName), " ", methodName, "'", (char *) NULL); DECR_REF_COUNT(res); } return result; } static int XOTclOConfigureMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)cd; Tcl_Obj **argv, **nextArgv; int i, argc, nextArgc, normalArgs, result = TCL_OK, isdasharg = NO_DASH; char *methodName, *nextMethodName; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 1) return XOTclObjErrArgCnt(in, obj->cmdName, "configure ?args?"); /* find arguments without leading dash */ for (i=1; i < objc; i++) { if ((isdasharg = isDashArg(in, objv[i], &methodName, &argc, &argv))) break; } normalArgs = i-1; for( ; i < objc; argc=nextArgc, argv=nextArgv, methodName=nextMethodName) { Tcl_ResetResult(in); switch (isdasharg) { case SKALAR_DASH: /* argument is a skalar with a leading dash */ { int j; for (j = i+1; j < objc; j++, argc++) { if ((isdasharg = isDashArg(in, objv[j], &nextMethodName, &nextArgc, &nextArgv))) break; } result = callConfigureMethod(in, obj, methodName, argc+1, objv+i+1); if (result != TCL_OK) return result; i += argc; break; } case LIST_DASH: /* argument is a list with a leading dash, grouping determined by list */ { i++; if (icmdName), " configure: unexpected argument '", ObjStr(objv[i]), "' between parameters", (char *) NULL); } } } Tcl_ResetResult(in); Tcl_SetIntObj(Tcl_GetObjResult(in), normalArgs); return result; } /* * class method implementations */ static int XOTclCInstDestroyMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclObject *delobj; int rc; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instdestroy "); if (XOTclObjConvertObject(in, objv[1], &delobj) != TCL_OK) return XOTclVarErrMsg(in, "Can't destroy object ", ObjStr(objv[1]), " that does not exist.", (char *) NULL); /* fprintf(stderr,"instdestroy obj=%s, opt=%p\n",ObjStr(delobj->cmdName),delobj->opt);*/ rc = freeUnsetTraceVariable(in, delobj); if (rc != TCL_OK) { return rc; } /* * latch, and call delete command if not already in progress */ delobj->flags |= XOTCL_DESTROY_CALLED; RUNTIME_STATE(in)->callIsDestroy = 1; /*fprintf(stderr,"instDestroy: setting callIsDestroy = 1\n");*/ if (RUNTIME_STATE(in)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_ON_SOFT_DESTROY) { CallStackDestroyObject(in, delobj); } return TCL_OK; } static Tcl_Namespace * callingNameSpace(Tcl_Interp *in) { Tcl_Namespace *ns = NULL; XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; XOTclCallStackContent *top = cs->top; XOTclCallStackContent *csc = XOTclCallStackFindLastInvocation(in, 0); /*fprintf(stderr," **** use last invocation csc = %p\n", csc);*/ if (csc && csc->currentFramePtr) { /* use the callspace from the last invocation */ XOTclCallStackContent *called = csccurrentFramePtr) : NULL; /*fprintf(stderr," **** csc use frame= %p\n", f);*/ if (f) { ns = f->nsPtr; } else { Tcl_CallFrame *f = Tcl_CallFrame_callerPtr(csc->currentFramePtr); ns = Tcl_GetCurrentNamespace(in); /* find last incovation outside ::xotcl (for things like relmgr) */ while (ns == RUNTIME_STATE(in)->XOTclNS) { if (f) { ns = f->nsPtr; f = Tcl_CallFrame_callerPtr(f); } else { ns = Tcl_GetGlobalNamespace(in); } } /*fprintf(stderr, "found ns %p '%s'\n",ns, ns?ns->fullName:"NULL");*/ } } if (!ns) { /* calls on xotcl toplevel */ XOTclCallStackContent *bot = cs->content + 1; /*fprintf(stderr, " **** bot=%p diff=%d\n",bot, top-bot);*/ if (top - bot >= 0 && bot->currentFramePtr) { /* get calling tcl environment */ Tcl_CallFrame *f = Tcl_CallFrame_callerPtr(bot->currentFramePtr); if (f) { ns = f->nsPtr; /*fprintf(stderr, "top=%p, bot=%p b->c=%p f=%p ns=%p\n", top,bot,bot->currentFramePtr, f, ns);*/ /*fprintf(stderr,"ns from calling tcl environment %p '%s'\n", ns, ns?ns->fullName : "" );*/ } else { /* fprintf(stderr, "nothing found, use ::\n"); */ ns = Tcl_GetGlobalNamespace(in); } } } /*XOTclCallStackDump(in);*/ /*XOTclStackDump(in);*/ /*fprintf(stderr,"callingNameSpace returns %p %s\n",ns,ns?ns->fullName:"");*/ return ns; } static int XOTclCAllocMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclClass *newcl; XOTclObject *newobj; int result; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "alloc ?args?"); #if 0 fprintf(stderr, "type(%s)=%p %s %d\n", ObjStr(objv[1]), objv[1]->typePtr, objv[1]->typePtr? objv[1]->typePtr->name:"NULL", XOTclObjConvertObject(in, objv[1], &newobj) ); /* * if the lookup via GetObject for the object succeeds, * the object exists already, * and we do not overwrite it, but re-create it */ if (XOTclObjConvertObject(in, objv[1], &newobj) == TCL_OK) { fprintf(stderr, "lookup successful\n"); result = doCleanup(in, newobj, &cl->object, objc, objv); } else #endif { /* * create a new object from scratch */ char *objName = ObjStr(objv[1]); Tcl_Obj *tmpName = NULL; if (!isAbsolutePath(objName)) { /*fprintf(stderr, "CallocMethod\n");*/ tmpName = NameInNamespaceObj(in,objName,callingNameSpace(in)); /*fprintf(stderr, "NoAbsoluteName for '%s' -> determined = '%s'\n", objName, ObjStr(tmpName));*/ objName = ObjStr(tmpName); /*fprintf(stderr," **** name is '%s'\n", objName);*/ INCR_REF_COUNT(tmpName); } if (IsMetaClass(in, cl)) { /* * if the base class is a meta-class, we create a class */ newcl = PrimitiveCCreate(in, objName, cl); if (newcl == 0) result = XOTclVarErrMsg(in, "Class alloc failed for '",objName, "' (possibly parent namespace does not exist)", (char *) NULL); else { Tcl_SetObjResult(in, newcl->object.cmdName); result = TCL_OK; } } else { /* * if the base class is an ordinary class, we create an object */ newobj = PrimitiveOCreate(in, objName, cl); if (newobj == 0) result = XOTclVarErrMsg(in, "Object alloc failed for '",objName, "' (possibly parent namespace does not exist)", (char *) NULL); else { result = TCL_OK; Tcl_SetObjResult(in, newobj->cmdName); } } if (tmpName) { DECR_REF_COUNT(tmpName); } } return result; } static int createMethod(Tcl_Interp *in, XOTclClass *cl, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *newobj = NULL; Tcl_Obj *nameObj, *tmpObj = NULL; int result; char *objName, *specifiedName; ALLOC_ON_STACK(Tcl_Obj*,objc, tov); memcpy(tov, objv, sizeof(Tcl_Obj *)*(objc)); specifiedName = objName = ObjStr(objv[1]); /* * complete the name if it is not absolute */ if (!isAbsolutePath(objName)) { tmpObj = NameInNamespaceObj(in,objName,callingNameSpace(in)); objName = ObjStr(tmpObj); /*fprintf(stderr," **** name is '%s'\n", objName);*/ INCR_REF_COUNT(tmpObj); tov[1] = tmpObj; } /* * Check whether we have to call recreate (i.e. when the * object exists already) */ newobj = XOTclpGetObject(in, objName); /*fprintf(stderr,"+++ create objv[1] '%s', specifiedName '%s', newObj=%p\n", specifiedName, objName, newobj);*/ /* don't allow an object to be recreated as a class */ if (newobj && (!IsMetaClass(in, cl) || IsMetaClass(in, newobj->cl))) { /*fprintf(stderr, "%%%% recreate, call recreate method ... %s, objc=%d\n", ObjStr(tov[1]),objc+1);*/ /* call recreate --> initialization */ result = callMethod((ClientData) obj, in, XOTclGlobalObjects[XOTE_RECREATE], objc+1, tov+1, 0); if (result != TCL_OK) goto create_method_exit; Tcl_SetObjResult(in, newobj->cmdName); nameObj = newobj->cmdName; objTrace("RECREATE", newobj); } else { if (!NSCheckColons(specifiedName, 0)) { result = XOTclVarErrMsg(in, "Cannot create object -- illegal name '", specifiedName, "'", (char *) NULL); goto create_method_exit; } /* fprintf(stderr, "alloc ... %s\n", ObjStr(tov[1]));*/ result = callMethod((ClientData) obj, in, XOTclGlobalObjects[XOTE_ALLOC], objc+1, tov+1, 0); if (result != TCL_OK) goto create_method_exit; nameObj = Tcl_GetObjResult(in); if (XOTclObjConvertObject(in, nameObj, &newobj) != TCL_OK) { result = XOTclErrMsg(in, "couldn't find result of alloc", TCL_STATIC); goto create_method_exit; } (void)RemoveInstance(newobj, newobj->cl); AddInstance(newobj, cl); objTrace("CREATE", newobj); /* in case, the object is destroyed during initialization, we incr refcount */ INCR_REF_COUNT(nameObj); result = doObjInitialization(in, newobj, objc, objv); DECR_REF_COUNT(nameObj); } create_method_exit: /* fprintf(stderr, "create -- end ... %s\n", ObjStr(tov[1]));*/ if (tmpObj) {DECR_REF_COUNT(tmpObj);} FREE_ON_STACK(tov); return result; } static int XOTclCCreateMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "create ?args?"); if (RUNTIME_STATE(in)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_OFF) { fprintf(stderr,"### Can't create object %s during shutdown\n",ObjStr(objv[1])); return TCL_ERROR; return TCL_OK; /* don't fail, if this happens during destroy, it might be canceled */ } return createMethod(in, cl, &cl->object, objc, objv); } static int XOTclCNewMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclObject *child = NULL; Tcl_Obj *fullname; int result, offset = 1, #if REFCOUNTED isrefcount = 0, #endif i, prefixLength; Tcl_DString dFullname, *dsPtr = &dFullname; XOTclStringIncrStruct *iss = &RUNTIME_STATE(in)->iss; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 1) return XOTclObjErrArgCnt(in, cl->object.cmdName, "new [-childof obj] ?args?"); for (i=1; icmdName), -1); Tcl_DStringAppend(dsPtr, "::__#", 5); } else { Tcl_DStringAppend(dsPtr, "::xotcl::__#", 12); } prefixLength = dsPtr->length; while (1) { (void)XOTclStringIncr(iss); Tcl_DStringAppend(dsPtr, iss->start, iss->length); if (!Tcl_FindCommand(in, Tcl_DStringValue(dsPtr), NULL, 0)) { break; } /* in case the value existed already, reset prefix to the original length */ Tcl_DStringSetLength(dsPtr, prefixLength); } fullname = Tcl_NewStringObj(Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr)); INCR_REF_COUNT(fullname); objc -= offset; { ALLOC_ON_STACK(Tcl_Obj*,objc+3, ov); ov[0] = objv[0]; ov[1] = XOTclGlobalObjects[XOTE_CREATE]; ov[2] = fullname; if (objc >= 1) memcpy(ov+3, objv+offset, sizeof(Tcl_Obj *)*objc); result = DoDispatch(cd, in, objc+3, ov, 0); FREE_ON_STACK(ov); } #if REFCOUNTED if (result == TCL_OK) { if (isrefcount) { Tcl_Obj *obj = Tcl_GetObjResult(in); XOTclObject *o = (XOTclObject*) obj->internalRep.otherValuePtr; o->flags |= XOTCL_REFCOUNTED; o->teardown = in; DECR_REF_COUNT(obj); } } #endif DECR_REF_COUNT(fullname); Tcl_DStringFree(dsPtr); return result; } static int XOTclCRecreateMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclObject *newobj; int result; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "recreate ?args?"); if (XOTclObjConvertObject(in, objv[1], &newobj) != TCL_OK) return XOTclVarErrMsg(in, "can't recreate not existing obj ", ObjStr(objv[1]), (char *) NULL); INCR_REF_COUNT(objv[1]); newobj->flags |= XOTCL_RECREATE; result = doCleanup(in, newobj, &cl->object, objc, objv); if (result == TCL_OK) { result = doObjInitialization(in, newobj, objc, objv); if (result == TCL_OK) Tcl_SetObjResult(in, objv[1]); } DECR_REF_COUNT(objv[1]); return result; } static int XOTclCInfoMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); Tcl_Namespace *nsp; XOTclClassOpt *opt; char *pattern, *cmd; int modifiers = 0; if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info ?args?"); if (cl) { nsp = cl->nsPtr; opt = cl->opt; cmd = ObjStr(objv[1]); pattern = (objc > 2) ? ObjStr(objv[2]) : 0; /* * check for "-" modifiers */ if (pattern && *pattern == '-') { modifiers = countModifiers(objc, objv); pattern = (objc > 2+modifiers) ? ObjStr(objv[2+modifiers]) : 0; } switch (*cmd) { case 'c': if (!strcmp(cmd, "classchildren")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info classchildren ?pat?"); return ListChildren(in, (XOTclObject*) cl, pattern, 1); } else if (!strcmp(cmd, "classparent")) { if (objc > 2 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info classparent"); return ListParent(in, &cl->object); } break; case 'h': if (!strcmp(cmd, "heritage")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info heritage ?pat?"); return ListHeritage(in, cl, pattern); } break; case 'i': if (cmd[1] == 'n' && cmd[2] == 's' && cmd[3] == 't') { char *cmdTail = cmd + 4; switch (*cmdTail) { case 'a': if (!strcmp(cmdTail, "ances")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instances ?pat?"); return ListObjPtrHashTable(in, &cl->instances, pattern); } else if (!strcmp(cmdTail, "args")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instargs "); if (cl->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(cl->nonposArgsTable, pattern); if (nonposArgs) { return ListArgsFromOrdinaryArgs(in, nonposArgs); } } return ListProcArgs(in, Tcl_Namespace_cmdTable(nsp), pattern); } break; case 'b': if (!strcmp(cmdTail, "body")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instbody "); return ListProcBody(in, Tcl_Namespace_cmdTable(nsp), pattern); } break; case 'c': if (!strcmp(cmdTail, "commands")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instcommands ?pat?"); return ListKeys(in, Tcl_Namespace_cmdTable(nsp), pattern); } break; case 'd': if (!strcmp(cmdTail, "default")) { if (objc != 5 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instdefault "); if (cl->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(cl->nonposArgsTable, pattern); if (nonposArgs) { return ListDefaultFromOrdinaryArgs(in, pattern, nonposArgs, ObjStr(objv[3]), objv[4]); } } return ListProcDefault(in, Tcl_Namespace_cmdTable(nsp), pattern, ObjStr(objv[3]), objv[4]); } break; case 'f': if (!strcmp(cmdTail, "filter")) { int withGuards = 0; if (objc-modifiers > 3) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instfilter ?-guards? ?pat?"); if (modifiers > 0) { withGuards = checkForModifier(objv, modifiers, "-guards"); if (withGuards == 0) return XOTclVarErrMsg(in, "info instfilter: unknown modifier ", ObjStr(objv[2]), (char *) NULL); } return opt ? FilterInfo(in, opt->instfilters, pattern, withGuards, 0) : TCL_OK; } else if (!strcmp(cmdTail, "filterguard")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instfilterguard filter"); return opt ? GuardList(in, opt->instfilters, pattern) : TCL_OK; } else if (!strcmp(cmdTail, "forward")) { int argc = objc-modifiers; int definition; if (argc < 2 || argc > 3) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instforward ?-definition? ?name?"); definition = checkForModifier(objv, modifiers, "-definition"); if (nsp) return forwardList(in, Tcl_Namespace_cmdTable(nsp), pattern, definition); else return TCL_OK; } break; case 'i': if (!strcmp(cmdTail, "invar")) { XOTclAssertionStore *assertions = opt ? opt->assertions : 0; if (objc != 2 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instinvar"); if (assertions && assertions->invariants) Tcl_SetObjResult(in, AssertionList(in, assertions->invariants)); return TCL_OK; } break; case 'm': if (!strcmp(cmdTail, "mixin")) { int withGuards = 0; if (objc-modifiers > 3 || modifiers > 1) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instmixin ?-guards? ?class?"); if (modifiers > 0) { withGuards = checkForModifier(objv, modifiers, "-guards"); if (withGuards == 0) return XOTclVarErrMsg(in, "info instfilter: unknown modifier ", ObjStr(objv[2]), (char *) NULL); } return opt ? MixinInfo(in, opt->instmixins, pattern, withGuards) : TCL_OK; } else if (!strcmp(cmdTail, "mixinguard")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instmixinguard mixin"); return opt ? GuardList(in, opt->instmixins, pattern) : TCL_OK; } break; case 'n': if (!strcmp(cmdTail, "nonposargs")) { if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instnonposargs "); if (cl->nonposArgsTable) { XOTclNonposArgs* nonposArgs = NonposArgsGet(cl->nonposArgsTable, pattern); if (nonposArgs) { Tcl_SetObjResult(in, NonposArgsFormat(in, nonposArgs->nonposArgs)); } } return TCL_OK; } break; case 'p': if (!strcmp(cmdTail, "procs")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instprocs ?pat?"); return ListMethodKeys(in, Tcl_Namespace_cmdTable(nsp), pattern, /*noProcs*/ 0, /*noCmds*/ 1, /* noDups */ 0, 0); } else if (!strcmp(cmdTail, "pre")) { XOTclProcAssertion* procs; if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instpre "); if (opt && opt->assertions) { procs = AssertionFindProcs(opt->assertions, ObjStr(objv[2])); if (procs) Tcl_SetObjResult(in, AssertionList(in, procs->pre)); } return TCL_OK; } else if (!strcmp(cmdTail, "post")) { XOTclProcAssertion* procs; if (objc != 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info instpost "); if (opt && opt->assertions) { procs = AssertionFindProcs(opt->assertions, ObjStr(objv[2])); if (procs) Tcl_SetObjResult(in, AssertionList(in, procs->post)); } return TCL_OK; } break; } } break; case 'p': if (!strcmp(cmd, "parameterclass")) { if (opt && opt->parameterClass) { Tcl_SetObjResult(in, opt->parameterClass); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_PARAM_CL]); } return TCL_OK; } else if (!strcmp(cmd, "parameter")) { Tcl_DString ds, *dsPtr = &ds; XOTclObject *o; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className(cl), -1); Tcl_DStringAppend(dsPtr, "::slot", 6); o = XOTclpGetObject(in, Tcl_DStringValue(dsPtr)); if (o) { Tcl_Obj *varNameObj = Tcl_NewStringObj("__parameter",-1); Tcl_Obj *parameters = XOTclOGetInstVar2((XOTcl_Object*)o, in, varNameObj, NULL, TCL_LEAVE_ERR_MSG); if (parameters) { Tcl_SetObjResult(in, parameters); } else { fprintf(stderr, "info parameters: No value for %s\n", Tcl_DStringValue(dsPtr)); Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } DECR_REF_COUNT(varNameObj); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } DSTRING_FREE(dsPtr); #if 0 if (cl->parameters) { Tcl_SetObjResult(in, cl->parameters); } else { Tcl_SetObjResult(in, XOTclGlobalObjects[XOTE_EMPTY]); } #endif return TCL_OK; } break; case 's': if (!strcmp(cmd, "superclass")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info superclass ?class?"); return ListSuperclasses(in, cl, pattern); } else if (!strcmp(cmd, "subclass")) { if (objc > 3 || modifiers > 0) return XOTclObjErrArgCnt(in, cl->object.cmdName, "info subclass ?class?"); return ListSubclasses(in, cl, pattern); } else if (!strcmp(cmd, "slots")) { Tcl_DString ds, *dsPtr = &ds; XOTclObject *o; int rc; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className(cl), -1); Tcl_DStringAppend(dsPtr, "::slot", 6); o = XOTclpGetObject(in, Tcl_DStringValue(dsPtr)); if (o) { rc = ListChildren(in, o, NULL, 0); } else { rc = TCL_OK; } DSTRING_FREE(dsPtr); return rc; } break; } } return XOTclOInfoMethod(cd, in, objc, (Tcl_Obj **)objv); } static int XOTclCParameterMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); Tcl_Obj **pv = 0; int elts, pc, result; char * params; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "parameter ?params?"); if (cl->parameters) { DECR_REF_COUNT(cl->parameters); } /* did we delete the parameters ? */ params = ObjStr(objv[1]); if ((params == NULL) || (*params == '\0')) { cl->parameters = 0; return TCL_OK; } /* ok, remember the params */ cl->parameters = objv[1]; INCR_REF_COUNT(cl->parameters); /* call getter/setter methods in params */ result = Tcl_ListObjGetElements(in, objv[1], &pc, &pv); if (result == TCL_OK) { for (elts = 0; elts < pc; elts++) { result = callParameterMethodWithArg(&cl->object, in, XOTclGlobalObjects[XOTE_MKGETTERSETTER], cl->object.cmdName, 3+1, &pv[elts],0); if (result != TCL_OK) break; } } return result; } static int XOTclCParameterClassMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); char *paramClStr; XOTclClassOpt *opt; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "parameterclass cl"); paramClStr = ObjStr(objv[1]); opt = cl->opt; if (opt && opt->parameterClass) { DECR_REF_COUNT(opt->parameterClass); } if ((paramClStr == NULL) || (*paramClStr == '\0')) { if (opt) opt->parameterClass = 0; } else { opt = XOTclRequireClassOpt(cl); opt->parameterClass = objv[1]; INCR_REF_COUNT(opt->parameterClass); } return TCL_OK; } static int XOTclCInstParameterCmdMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instparametercmd name"); XOTclAddIMethod(in, (XOTcl_Class*) cl, ObjStr(objv[1]), (Tcl_ObjCmdProc*)XOTclSetterMethod, 0, 0); return TCL_OK; } static int XOTclCParameterCmdMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject*) cd; if (objc < 2) return XOTclObjErrArgCnt(in, obj->cmdName, "parametercmd name"); XOTclAddPMethod(in, (XOTcl_Object*) obj, ObjStr(objv[1]), (Tcl_ObjCmdProc*)XOTclSetterMethod, 0, 0); return TCL_OK; } static void forwardCmdDeleteProc(ClientData cd) { forwardCmdClientData *tcd = (forwardCmdClientData *)cd; if (tcd->cmdName) {DECR_REF_COUNT(tcd->cmdName);} if (tcd->subcommands) {DECR_REF_COUNT(tcd->subcommands);} if (tcd->prefix) {DECR_REF_COUNT(tcd->prefix);} if (tcd->args) {DECR_REF_COUNT(tcd->args);} FREE(forwardCmdClientData, tcd); } static int forwardProcessOptions(Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[], forwardCmdClientData **tcdp) { forwardCmdClientData *tcd; int i, rc = 0, earlybinding = 0; tcd = NEW(forwardCmdClientData); memset(tcd, 0, sizeof(forwardCmdClientData)); for (i=2; isubcommands = objv[i+1]; rc = Tcl_ListObjLength(in,objv[i+1],&tcd->nr_subcommands); if (rc != TCL_OK) break; INCR_REF_COUNT(tcd->subcommands); i++; } else if (!strcmp(ObjStr(objv[i]),"-methodprefix")) { if (objc <= i+1) {rc = TCL_ERROR; break;} tcd->prefix = objv[i+1]; INCR_REF_COUNT(tcd->prefix); i++; } else if (!strcmp(ObjStr(objv[i]),"-objscope")) { tcd->objscope = 1; } else if (!strcmp(ObjStr(objv[i]),"-earlybinding")) { earlybinding = 1; } else if (!strcmp(ObjStr(objv[i]),"-verbose")) { tcd->verbose = 1; } else { break; } } tcd->needobjmap = 0; for (; ineedobjmap |= (*element == '%' && *(element+1) == '@'); if (tcd->cmdName == 0) { tcd->cmdName = objv[i]; } else if (tcd->args == 0) { tcd->args = Tcl_NewListObj(1, &objv[i]); tcd->nr_args++; INCR_REF_COUNT(tcd->args); } else { Tcl_ListObjAppendElement(in, tcd->args, objv[i]); tcd->nr_args++; } } if (!tcd->cmdName) { tcd->cmdName = objv[1]; } if (tcd->objscope) { /* when we evaluating objscope, and define ... o forward append -objscope append a call to o append ... would lead to a recursive call; so we add the appropriate namespace */ char *name = ObjStr(tcd->cmdName); if (!isAbsolutePath(name)) { tcd->cmdName = NameInNamespaceObj(in, name, callingNameSpace(in)); /*fprintf(stderr,"name %s not absolute, therefore qualifying %s\n", name, ObjStr(tcd->cmdName));*/ } } INCR_REF_COUNT(tcd->cmdName); if (earlybinding) { Tcl_Command cmd = Tcl_GetCommandFromObj(in, tcd->cmdName); if (cmd == NULL) return XOTclVarErrMsg(in, "cannot lookup command '",ObjStr(tcd->cmdName), "'", (char *) NULL); tcd->objProc = Tcl_Command_objProc(cmd); if (tcd->objProc == XOTclObjDispatch /* don't do direct invoke on xotcl objects */ || tcd->objProc == TclObjInterpProc /* don't do direct invoke on tcl procs */ ) { /* silently ignore earlybinding flag */ tcd->objProc = NULL; } else { tcd->cd = Tcl_Command_objClientData(cmd); } } tcd->passthrough = !tcd->args && *(ObjStr(tcd->cmdName)) != '%' && tcd->objProc != NULL; /*fprintf(stderr, "forward args = %p, name = '%s'\n",tcd->args, ObjStr(tcd->cmdName));*/ if (rc == TCL_OK) { *tcdp = tcd; } else { forwardCmdDeleteProc((ClientData)tcd); } return rc; } static int XOTclCInstForwardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); forwardCmdClientData *tcd; int rc; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 2) goto forward_argc_error; rc = forwardProcessOptions(in, objc, objv, &tcd); if (rc == TCL_OK) { tcd->obj = &cl->object; XOTclAddIMethod(in, (XOTcl_Class*) cl, NSTail(ObjStr(objv[1])), (Tcl_ObjCmdProc*)XOTclForwardMethod, (ClientData)tcd, forwardCmdDeleteProc); return TCL_OK; } else { forward_argc_error: return XOTclObjErrArgCnt(in, cl->object.cmdName, "instforward method ?target? ?-default name? ?-objscope? ?-methodprefix string? ?args?"); } } static int XOTclOForwardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTcl_Object *obj = (XOTcl_Object*) cd; forwardCmdClientData *tcd; int rc; if (!obj) return XOTclObjErrType(in, objv[0], "Object"); if (objc < 2) goto forward_argc_error; rc = forwardProcessOptions(in, objc, objv, &tcd); if (rc == TCL_OK) { tcd->obj = (XOTclObject*)obj; XOTclAddPMethod(in, obj, NSTail(ObjStr(objv[1])), (Tcl_ObjCmdProc*)XOTclForwardMethod, (ClientData)tcd, forwardCmdDeleteProc); return TCL_OK; } else { forward_argc_error: return XOTclObjErrArgCnt(in, obj->cmdName, "forward method ?target? ?-default name? ?-objscope? ?-methodprefix string? ?args?"); } } static int XOTclOVolatileMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj * CONST objv[]) { XOTclObject *obj = (XOTclObject*) cd; Tcl_Obj *o = obj->cmdName; int result = TCL_ERROR; char *fullName = ObjStr(o); char *vn; callFrameContext ctx = {0}; if (objc != 1) return XOTclObjErrArgCnt(in, obj->cmdName, "volatile"); if (RUNTIME_STATE(in)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_OFF) { fprintf(stderr,"### Can't make objects volatile during shutdown\n"); return XOTclVarErrMsg(in, "Can't make objects volatile during shutdown\n",NULL); } CallStackUseActiveFrames(in, &ctx); vn = NSTail(fullName); if (Tcl_SetVar2(in, vn, NULL, fullName, 0) != NULL) { XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); /*fprintf(stderr,"### setting trace for %s\n", fullName);*/ result = Tcl_TraceVar(in, vn, TCL_TRACE_UNSETS, (Tcl_VarTraceProc*)XOTclUnsetTrace, (ClientData)o); opt->volatileVarName = vn; } CallStackRestoreSavedFrames(in, &ctx); if (result == TCL_OK) { INCR_REF_COUNT(o); } return result; } static int XOTclCInstProcMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); char *argStr, *bdyStr, *name; XOTclClassOpt* opt; int incr = 0, result = TCL_OK; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc < 4 || objc > 7) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instproc name ?non-positional-args? args body ?preAssertion postAssertion?"); if (objc == 5 || objc == 7) { incr = 1; } argStr = ObjStr(objv[2 + incr]); bdyStr = ObjStr(objv[3 + incr]); name = ObjStr(objv[1 + incr]); if ((cl == RUNTIME_STATE(in)->theObject && isDestroyString(name)) || (cl == RUNTIME_STATE(in)->theClass && isInstDestroyString(name)) || (cl == RUNTIME_STATE(in)->theClass && isAllocString(name)) || (cl == RUNTIME_STATE(in)->theClass && isCreateString(name))) return XOTclVarErrMsg(in, className(cl), " instproc: '", name, "' of ", className(cl), " can not be overwritten. Derive a ", "sub-class", (char *) NULL); if (*argStr == 0 && *bdyStr == 0) { int rc; opt = cl->opt; if (opt && opt->assertions) AssertionRemoveProc(opt->assertions, name); rc = NSDeleteCmd(in, cl->nsPtr, name); if (rc < 0) return XOTclVarErrMsg(in, className(cl), " cannot delete instproc: '", name, "' of class ", className(cl), (char *) NULL); } else { XOTclAssertionStore* aStore = NULL; if (objc > 5) { opt = XOTclRequireClassOpt(cl); if (!opt->assertions) opt->assertions = AssertionCreateStore(); aStore = opt->assertions; } result = MakeProc(cl->nsPtr, aStore, &(cl->nonposArgsTable), in, objc, (Tcl_Obj **) objv, &cl->object); } /* could be a filter or filter inheritance ... update filter orders */ FilterInvalidateObjOrders(in, cl); return result; } static int XOTclCInstFilterGuardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclCmdList* h; XOTclClassOpt* opt; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 3) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instfilterguard filtername filterGuard"); opt = cl->opt; if (opt && opt->instfilters) { h = CmdListFindNameInList(in, ObjStr(objv[1]), opt->instfilters); if (h) { if (h->clientData) GuardDel(h); GuardAdd(in, h, objv[2]); FilterInvalidateObjOrders(in, cl); return TCL_OK; } } return XOTclVarErrMsg(in, "Instfilterguard: can't find filter ", ObjStr(objv[1]), " on ", ObjStr(cl->object.cmdName), (char *) NULL); } static int XOTclCInstMixinGuardMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclCmdList* h; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 3) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instmixinguard mixin guard"); if (cl->opt && cl->opt->instmixins) { XOTclClass *mixinCl = XOTclpGetClass(in, ObjStr(objv[1])); Tcl_Command mixinCmd = NULL; if (mixinCl) { mixinCmd = Tcl_GetCommandFromObj(in, mixinCl->object.cmdName); } if (mixinCmd) { h = CmdListFindCmdInList(mixinCmd, cl->opt->instmixins); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(in, h, objv[2]); MixinInvalidateObjOrders(in, cl); return TCL_OK; } } } return XOTclVarErrMsg(in, "Instmixinguard: can't find mixin ", ObjStr(objv[1]), " on ", ObjStr(cl->object.cmdName), (char *) NULL); } static int XOTclCInvariantsMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = XOTclObjectToClass(cd); XOTclClassOpt* opt; if (!cl) return XOTclObjErrType(in, objv[0], "Class"); if (objc != 2) return XOTclObjErrArgCnt(in, cl->object.cmdName, "instinvar "); opt = XOTclRequireClassOpt(cl); if (opt->assertions) TclObjListFreeList(opt->assertions->invariants); else opt->assertions = AssertionCreateStore(); opt->assertions->invariants = AssertionNewList(in, objv[1]); return TCL_OK; } static int XOTclCUnknownMethod(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*) cd; char *self = ObjStr(obj->cmdName); int rc; if (objc < 2) return XOTclObjErrArgCnt(in, objv[0], "message ?args .. args?"); if (isCreateString(self)) return XOTclVarErrMsg(in, "error ", self, ": unable to dispatch '", ObjStr(objv[1]), "'", (char *) NULL); rc = callMethod(cd, in, XOTclGlobalObjects[XOTE_CREATE], objc+1, objv+1, 0); return rc; } /* * New Tcl Commands */ static int XOTcl_NSCopyCmds(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_Command cmd; Tcl_Obj *newFullCmdName, *oldFullCmdName; char *newName, *oldName, *name; Tcl_Namespace *ns, *newNs; Tcl_HashTable *cmdTable; Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; if (objc != 3) return XOTclObjErrArgCnt(in, NULL, "namespace_copycmds fromNs toNs"); ns = ObjFindNamespace(in, objv[1]); if (!ns) return TCL_OK; newNs = ObjFindNamespace(in, objv[2]); if (!newNs) return XOTclVarErrMsg(in, "CopyCmds: Destination namespace ", ObjStr(objv[2]), " does not exist", (char *) NULL); /* * copy all procs & commands in the ns */ cmdTable = Tcl_Namespace_cmdTable(ns); hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); while (hPtr != NULL) { name = Tcl_GetHashKey(cmdTable, hPtr); /* * construct full cmd names */ newFullCmdName = Tcl_NewStringObj(newNs->fullName,-1); oldFullCmdName = Tcl_NewStringObj(ns->fullName,-1); INCR_REF_COUNT(newFullCmdName); INCR_REF_COUNT(oldFullCmdName); Tcl_AppendStringsToObj(newFullCmdName, "::", name, (char *) NULL); Tcl_AppendStringsToObj(oldFullCmdName, "::", name, (char *) NULL); newName = ObjStr(newFullCmdName); oldName = ObjStr(oldFullCmdName); /* * Make sure that the destination command does not already exist. * Otherwise: do not copy */ cmd = Tcl_FindCommand(in, newName, 0, 0); if (cmd != NULL) { /*fprintf(stderr, "%s already exists\n", newName);*/ if (!XOTclpGetObject(in, newName)) { /* command or instproc will be deleted & then copied */ Tcl_DeleteCommandFromToken(in, cmd); } else { /* don't overwrite objects -> will be recreated */ hPtr = Tcl_NextHashEntry(&hSrch); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); continue; } } /* * Find the existing command. An error is returned if simpleName can't * be found */ cmd = Tcl_FindCommand(in, oldName, 0, 0); if (cmd == NULL) { Tcl_AppendStringsToObj(Tcl_GetObjResult(in), "can't copy ", " \"", oldName, "\": command doesn't exist", (char *) NULL); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); return TCL_ERROR; } /* * Do not copy Objects or Classes */ if (!XOTclpGetObject(in, oldName)) { if (TclIsProc((Command*)cmd)) { Proc *procPtr = TclFindProc((Interp *)in, oldName); Tcl_Obj *arglistObj; CompiledLocal *localPtr; /* * Build a list containing the arguments of the proc */ arglistObj = Tcl_NewListObj(0, NULL); INCR_REF_COUNT(arglistObj); for (localPtr = procPtr->firstLocalPtr; localPtr != NULL; localPtr = localPtr->nextPtr) { if (TclIsCompiledLocalArgument(localPtr)) { Tcl_Obj *defVal, *defStringObj = Tcl_NewStringObj(localPtr->name, -1); INCR_REF_COUNT(defStringObj); /* check for default values */ if ((GetProcDefault(in, cmdTable, name, localPtr->name, &defVal) == TCL_OK) && (defVal != 0)) { Tcl_AppendStringsToObj(defStringObj, " ", ObjStr(defVal), (char *) NULL); } Tcl_ListObjAppendElement(in, arglistObj, defStringObj); DECR_REF_COUNT(defStringObj); } } if (Tcl_Command_objProc(cmd) == RUNTIME_STATE(in)->objInterpProc) { Tcl_DString ds, *dsPtr = &ds; if (isClassName(ns->fullName)) { /* it started with ::xotcl::classes */ XOTclClass *cl = XOTclpGetClass(in, NSCutXOTclClasses(ns->fullName)); XOTclProcAssertion* procs; if (cl) { procs = cl->opt ? AssertionFindProcs(cl->opt->assertions, name) : 0; } else { DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); DECR_REF_COUNT(arglistObj); return XOTclVarErrMsg(in, "No class for inst - assertions", (char *) NULL); } /* XOTcl InstProc */ DSTRING_INIT(dsPtr); Tcl_DStringAppendElement(dsPtr, NSCutXOTclClasses(newNs->fullName)); Tcl_DStringAppendElement(dsPtr, "instproc"); Tcl_DStringAppendElement(dsPtr, name); Tcl_DStringAppendElement(dsPtr, ObjStr(arglistObj)); Tcl_DStringAppendElement(dsPtr, StripBodyPrefix(ObjStr(procPtr->bodyPtr))); if (procs) { XOTclRequireClassOpt(cl); AssertionAppendPrePost(in, dsPtr, procs); } Tcl_EvalEx(in, Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr),0); DSTRING_FREE(dsPtr); } else { XOTclObject *obj = XOTclpGetObject(in, ns->fullName); XOTclProcAssertion* procs; if (obj) { procs = obj->opt ? AssertionFindProcs(obj->opt->assertions, name) : 0; } else { DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); DECR_REF_COUNT(arglistObj); return XOTclVarErrMsg(in, "No object for assertions", (char *) NULL); } /* XOTcl Proc */ DSTRING_INIT(dsPtr); Tcl_DStringAppendElement(dsPtr, newNs->fullName); Tcl_DStringAppendElement(dsPtr, "proc"); Tcl_DStringAppendElement(dsPtr, name); Tcl_DStringAppendElement(dsPtr, ObjStr(arglistObj)); Tcl_DStringAppendElement(dsPtr, StripBodyPrefix(ObjStr(procPtr->bodyPtr))); if (procs) { XOTclRequireObjectOpt(obj); AssertionAppendPrePost(in, dsPtr, procs); } Tcl_EvalEx(in, Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr),0); DSTRING_FREE(dsPtr); } DECR_REF_COUNT(arglistObj); } else { /* Tcl Proc */ Tcl_VarEval(in, "proc ", newName, " {", ObjStr(arglistObj),"} {\n", ObjStr(procPtr->bodyPtr), "}", (char *) NULL); } } else { /* * Otherwise copy command */ Tcl_ObjCmdProc* objProc = Tcl_Command_objProc(cmd); Tcl_CmdDeleteProc *deleteProc = Tcl_Command_deleteProc(cmd); ClientData cd; if (objProc) { cd = Tcl_Command_objClientData(cmd); if (cd == 0 || cd == XOTCL_NONLEAF_METHOD) { /* if client data not null, we would have to copy the client data; we don't know its size...., so rely on introspection for copying */ Tcl_CreateObjCommand(in, newName, objProc, Tcl_Command_objClientData(cmd), deleteProc); } } else { cd = Tcl_Command_clientData(cmd); if (cd == 0 || cd == XOTCL_NONLEAF_METHOD) { Tcl_CreateCommand(in, newName, Tcl_Command_proc(cmd), Tcl_Command_clientData(cmd), deleteProc); } } } } hPtr = Tcl_NextHashEntry(&hSrch); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); } return TCL_OK; } static int XOTcl_NSCopyVars(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_Namespace *ns, *newNs; Var *varPtr = NULL; Tcl_HashSearch hSrch; Tcl_HashEntry* hPtr; TclVarHashTable *varTable; int rc = TCL_OK; XOTclObject *obj; char *destFullName; Tcl_Obj *destFullNameObj; TclCallFrame frame, *framePtr = &frame; Tcl_Obj *varNameObj = NULL; Tcl_Obj *nobjv[4]; int nobjc; Tcl_Obj *setObj; if (objc != 3) return XOTclObjErrArgCnt(in, NULL, "namespace_copyvars fromNs toNs"); ns = ObjFindNamespace(in, objv[1]); if (ns) { newNs = ObjFindNamespace(in, objv[2]); if (!newNs) return XOTclVarErrMsg(in, "CopyVars: Destination namespace ", ObjStr(objv[2]), " does not exist", (char *) NULL); obj = XOTclpGetObject(in, ObjStr(objv[1])); destFullName = newNs->fullName; destFullNameObj = Tcl_NewStringObj(destFullName, -1); INCR_REF_COUNT(destFullNameObj); varTable = Tcl_Namespace_varTable(ns); Tcl_PushCallFrame(in,(Tcl_CallFrame *)framePtr,newNs,0); } else { XOTclObject *newObj; if (XOTclObjConvertObject(in, objv[1], &obj) != TCL_OK) { return XOTclVarErrMsg(in, "CopyVars: Origin object/namespace ", ObjStr(objv[1]), " does not exist", (char *) NULL); } if (XOTclObjConvertObject(in, objv[2], &newObj) != TCL_OK) { return XOTclVarErrMsg(in, "CopyVars: Destination object/namespace ", ObjStr(objv[2]), " does not exist", (char *) NULL); } varTable = obj->varTable; destFullNameObj = newObj->cmdName; destFullName = ObjStr(destFullNameObj); } setObj= Tcl_NewStringObj("set", 3); INCR_REF_COUNT(setObj); nobjc = 4; nobjv[0] = destFullNameObj; nobjv[1] = setObj; /* copy all vars in the namespace */ hPtr = varTable ? Tcl_FirstHashEntry(VarHashTable(varTable), &hSrch) : 0; while (hPtr != NULL) { getVarAndNameFromHash(hPtr, &varPtr, &varNameObj); INCR_REF_COUNT(varNameObj); if (!TclIsVarUndefined(varPtr) && !TclIsVarLink(varPtr)) { if (TclIsVarScalar(varPtr)) { /* it may seem odd that we do not copy obj vars with the * same SetVar2 as normal vars, but we want to dispatch it in order to * be able to intercept the copying */ if (obj) { nobjv[2] = varNameObj; nobjv[3] = valueOfVar(Tcl_Obj,varPtr,objPtr); rc = Tcl_EvalObjv(in, nobjc, nobjv, 0); } else { Tcl_ObjSetVar2(in, varNameObj, NULL, valueOfVar(Tcl_Obj,varPtr,objPtr), TCL_NAMESPACE_ONLY); } } else { if (TclIsVarArray(varPtr)) { /* HERE!! PRE85 Why not [array get/set] based? Let the core iterate*/ TclVarHashTable *aTable = valueOfVar(TclVarHashTable,varPtr,tablePtr); Tcl_HashSearch ahSrch; Tcl_HashEntry* ahPtr = aTable ? Tcl_FirstHashEntry(VarHashTable(aTable), &ahSrch) :0; for (; ahPtr != 0; ahPtr = Tcl_NextHashEntry(&ahSrch)) { Tcl_Obj *eltNameObj; Var *eltVar; getVarAndNameFromHash(ahPtr, &eltVar, &eltNameObj); INCR_REF_COUNT(eltNameObj); if (TclIsVarScalar(eltVar)) { if (obj) { Tcl_Obj *fullVarNameObj = Tcl_DuplicateObj(varNameObj); INCR_REF_COUNT(fullVarNameObj); Tcl_AppendStringsToObj(fullVarNameObj, "(", ObjStr(eltNameObj), ")", NULL); nobjv[2] = fullVarNameObj; nobjv[3] = valueOfVar(Tcl_Obj,eltVar,objPtr); rc = Tcl_EvalObjv(in, nobjc, nobjv, 0); DECR_REF_COUNT(fullVarNameObj); } else { Tcl_ObjSetVar2(in, varNameObj, eltNameObj, valueOfVar(Tcl_Obj,eltVar,objPtr), TCL_NAMESPACE_ONLY); } } DECR_REF_COUNT(eltNameObj); } } } } DECR_REF_COUNT(varNameObj); hPtr = Tcl_NextHashEntry(&hSrch); } if (ns) { DECR_REF_COUNT(destFullNameObj); Tcl_PopCallFrame(in); } DECR_REF_COUNT(setObj); return rc; } int XOTclSelfDispatchCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *self; int result; if (objc < 2) return XOTclObjErrArgCnt(in, objv[0], "::xotcl::my method ?args?"); if ((self = GetSelfObj(in))) { result = callMethod((ClientData)self, in, objv[1], objc, objv+2, 0); } else { result = XOTclVarErrMsg(in, "Cannot resolve 'self', probably called outside the context of an XOTcl Object", (char *) NULL); } return result; } int XOTclInitProcNSCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_CallFrame *varFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(in); /*RUNTIME_STATE(in)->varFramePtr = varFramePtr;*/ #if 0 Tcl_Namespace *nsPtr = Tcl_Command_nsPtr(RUNTIME_STATE(in)->cs.top->cmdPtr); fprintf(stderr,"initProcNS self=%s cmd=%p, '%s'\n", ObjStr(RUNTIME_STATE(in)->cs.top->self->cmdName), nsPtr, nsPtr->fullName); fprintf(stderr,"\tsetting currentFramePtr in %p to %p in initProcNS\n", RUNTIME_STATE(in)->cs.top->currentFramePtr, varFramePtr); XOTclCallStackDump(in); #endif if (RUNTIME_STATE(in)->cs.top->currentFramePtr == 0) { RUNTIME_STATE(in)->cs.top->currentFramePtr = varFramePtr; } /* else { fprintf(stderr,"not overwriting currentFramePtr in %p from %p to %p\n", RUNTIME_STATE(in)->cs.top, RUNTIME_STATE(in)->cs.top->currentFramePtr, varFramePtr); } */ #if !defined(NAMESPACEINSTPROCS) if (varFramePtr) { varFramePtr->nsPtr = GetCallerVarFrame(in,varFramePtr); } #endif return TCL_OK; } /* * Interpretation of Non-Positional Args */ int isNonposArg(Tcl_Interp *in, char * argStr, int nonposArgsDefc, Tcl_Obj **nonposArgsDefv, Tcl_Obj **var, char **type) { int i, npac; Tcl_Obj **npav; char *varName; if (argStr[0] == '-') { for (i=0; i < nonposArgsDefc; i++) { if (Tcl_ListObjGetElements(in, nonposArgsDefv[i], &npac, &npav) == TCL_OK && npac > 0) { varName = argStr+1; if (!strcmp(varName, ObjStr(npav[0]))) { *var = npav[0]; *type = ObjStr(npav[1]); return 1; } } } } return 0; } int XOTclCheckBooleanArgs(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { int result, bool; Tcl_Obj* boolean; if (objc == 2) { /* the variable is not yet defined (set), so we cannot check whether it is boolean or not */ return TCL_OK; } else if (objc != 3) { return XOTclObjErrArgCnt(in, NULL, "::xotcl::nonposArgs boolean name ?value?"); } boolean = Tcl_DuplicateObj(objv[2]); INCR_REF_COUNT(boolean); result = Tcl_GetBooleanFromObj(in, boolean, &bool); DECR_REF_COUNT(boolean); /* result = TCL_OK; */ if (result != TCL_OK) return XOTclVarErrMsg(in, "non-positional argument: '", ObjStr(objv[1]), "' with value '", ObjStr(objv[2]), "' is not of type boolean", (char *) NULL); return TCL_OK; } int XOTclCheckRequiredArgs(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { if (objc != 2 && objc != 3) return XOTclObjErrArgCnt(in, NULL, "::xotcl::nonposArgs required ?currentValue?"); if (objc != 3) return XOTclVarErrMsg(in, "required arg: '", ObjStr(objv[1]), "' missing", (char *) NULL); return TCL_OK; } int XOTclInterpretNonpositionalArgsCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_Obj **npav, **checkv, **checkArgv, **argsv, **nonposArgsDefv, *invocation[4], **ordinaryArgsDefv, **defaultValueObjv, *list, *checkObj, *ordinaryArg; int npac, checkc, checkArgc, argsc, nonposArgsDefc, ordinaryArgsDefc, defaultValueObjc, argsDefined = 0, ordinaryArgsCounter = 0, i, j, result, ic; char * lastDefArg = NULL, *arg, *argStr; int endOfNonposArgsReached = 0; Var *varPtr; XOTclClass* selfClass = GetSelfClass(in); char *methodName = (char *) GetSelfProc(in); Tcl_HashTable* nonposArgsTable; XOTclNonposArgs* nonposArgs; XOTclObject* selfObj; int r1, r2, r3, r4; if (objc != 2) return XOTclObjErrArgCnt(in, NULL, "::xotcl::interpretNonpositionalArgs "); if (selfClass) { nonposArgsTable = selfClass->nonposArgsTable; } else if ((selfObj = GetSelfObj(in))) { nonposArgsTable = selfObj->nonposArgsTable; } else { return XOTclVarErrMsg(in, "Non positional args: can't find self/self class", (char *) NULL); } nonposArgs = NonposArgsGet(nonposArgsTable, methodName); if (nonposArgs == 0) { return XOTclVarErrMsg(in, "Non positional args: can't find hash entry for: ", methodName, (char *) NULL); } r1 = Tcl_ListObjGetElements(in, nonposArgs->nonposArgs, &nonposArgsDefc, &nonposArgsDefv); r2 = Tcl_ListObjGetElements(in, nonposArgs->ordinaryArgs, &ordinaryArgsDefc, &ordinaryArgsDefv); r3 = Tcl_ListObjGetElements(in, objv[1], &argsc, &argsv); if (r1 != TCL_OK || r2 != TCL_OK || r3 != TCL_OK) { return XOTclVarErrMsg(in, "Cannot split non positional args list: ", methodName, (char *) NULL); } /* setting variables to default values */ for (i=0; i < nonposArgsDefc; i++) { r1 = Tcl_ListObjGetElements(in, nonposArgsDefv[i], &npac, &npav); if (r1 == TCL_OK) { if (npac == 3) { Tcl_ObjSetVar2(in, npav[0], NULL, npav[2], 0); } else if (npac == 2 && !strcmp(ObjStr(npav[1]), "switch")) { Tcl_ObjSetVar2(in, npav[0], NULL, Tcl_NewBooleanObj(0), 0); } } } if (ordinaryArgsDefc > 0) { lastDefArg = ObjStr(ordinaryArgsDefv[ordinaryArgsDefc-1]); if (isArgsString(lastDefArg)) { argsDefined = 1; } } /* setting specified variables */ for (i=0; i < argsc; i++) { if (!endOfNonposArgsReached) { char *type; Tcl_Obj *var; argStr = ObjStr(argsv[i]); if (isDoubleDashString(argStr)) { endOfNonposArgsReached = 1; i++; } if (isNonposArg(in, argStr, nonposArgsDefc, nonposArgsDefv, &var,&type)) { if (*type == 's' && !strcmp(type, "switch")) { int bool; Tcl_Obj *boolObj = Tcl_ObjGetVar2(in, var, 0, 0); if (Tcl_GetBooleanFromObj(in, boolObj, &bool) != TCL_OK) { return XOTclVarErrMsg(in, "Non positional arg '",argStr, "': no boolean value", (char *) NULL); } Tcl_ObjSetVar2(in, var, NULL, Tcl_NewBooleanObj(!bool), 0); } else { i++; if (i >= argsc) return XOTclVarErrMsg(in, "Non positional arg '", argStr, "': value missing", (char *) NULL); Tcl_ObjSetVar2(in, var, NULL, argsv[i], 0); } } else { endOfNonposArgsReached = 1; } } if (endOfNonposArgsReached && i < argsc) { if (ordinaryArgsCounter >= ordinaryArgsDefc) { Tcl_Obj *tmp = NonposArgsFormat(in, nonposArgs->nonposArgs); XOTclVarErrMsg(in, "unknown argument '", ObjStr(argsv[i]), "' for method '", methodName, "': valid arguments ", ObjStr(tmp), " ", ObjStr(nonposArgs->ordinaryArgs), (char *) NULL); DECR_REF_COUNT(tmp); return TCL_ERROR; } arg = ObjStr(ordinaryArgsDefv[ordinaryArgsCounter]); /* this is the last arg and 'args' is defined */ if (argsDefined && ordinaryArgsCounter+1 == ordinaryArgsDefc) { list = Tcl_NewListObj(0, NULL); INCR_REF_COUNT(list); for(; i < argsc; i++) Tcl_ListObjAppendElement(in, list, argsv[i]); Tcl_ObjSetVar2(in, ordinaryArgsDefv[ordinaryArgsCounter], NULL, list, 0); DECR_REF_COUNT(list); } else { /* break down this argument, if it has a default value, use only the first part */ ordinaryArg = ordinaryArgsDefv[ordinaryArgsCounter]; r4 = Tcl_ListObjGetElements(in, ordinaryArg, &defaultValueObjc, &defaultValueObjv); if (r4 == TCL_OK && defaultValueObjc == 2) { ordinaryArg = defaultValueObjv[0]; } Tcl_ObjSetVar2(in, ordinaryArg, NULL, argsv[i], 0); } ordinaryArgsCounter++; } } /*fprintf(stderr,"... args defined %d argsc=%d oa %d oad %d\n", argsDefined, argsc, ordinaryArgsCounter, ordinaryArgsDefc); */ if ((!argsDefined && ordinaryArgsCounter != ordinaryArgsDefc) || (argsDefined && ordinaryArgsCounter < ordinaryArgsDefc-1)) { /* we do not have enough arguments, maybe there are default arguments for the missing args */ while (ordinaryArgsCounter != ordinaryArgsDefc) { if (argsDefined && ordinaryArgsCounter+1 == ordinaryArgsDefc) break; r4 = Tcl_ListObjGetElements(in, ordinaryArgsDefv[ordinaryArgsCounter], &defaultValueObjc, &defaultValueObjv); /*fprintf(stderr,"... try to get default for '%s', rc %d, objc %d\n", ObjStr(ordinaryArgsDefv[ordinaryArgsCounter]), r4,defaultValueObjc);*/ if (r4 == TCL_OK && defaultValueObjc == 2) { Tcl_ObjSetVar2(in, defaultValueObjv[0], NULL, defaultValueObjv[1], 0); } else { Tcl_Obj *tmp = NonposArgsFormat(in, nonposArgs->nonposArgs); XOTclVarErrMsg(in, "wrong # args for method '", methodName, "': valid arguments ", ObjStr(tmp), " ", ObjStr(nonposArgs->ordinaryArgs), (char *) NULL); DECR_REF_COUNT(tmp); return TCL_ERROR; } ordinaryArgsCounter++; } if (argsDefined) { Tcl_SetVar2(in, "args", NULL, "", 0); } } else if (argsDefined && ordinaryArgsCounter == ordinaryArgsDefc-1) { Tcl_SetVar2(in, "args", NULL, "", 0); } if (!argsDefined) { Tcl_UnsetVar2(in, "args", NULL, 0); } /* checking vars */ for (i=0; i < nonposArgsDefc; i++) { r1 = Tcl_ListObjGetElements(in, nonposArgsDefv[i], &npac, &npav); if (r1 == TCL_OK && npac > 1 && *(ObjStr(npav[1])) != '\0') { r1 = Tcl_ListObjGetElements(in, npav[1], &checkc, &checkv); if (r1 == TCL_OK) { checkObj = XOTclGlobalObjects[XOTE_NON_POS_ARGS_OBJ]; for (j=0; j < checkc; j++) { r1 = Tcl_ListObjGetElements(in, checkv[j], &checkArgc, &checkArgv); if (r1 == TCL_OK && checkArgc > 1) { if (isCheckObjString((ObjStr(checkArgv[0]))) && checkArgc == 2) { checkObj = checkArgv[1]; continue; } } invocation[0] = checkObj; invocation[1] = checkv[j]; varPtr = TclVarTraceExists(in, ObjStr(npav[0])); invocation[2] = npav[0]; ic = 3; if ((varPtr != NULL) && !TclIsVarUndefined(varPtr)) { invocation[3] = Tcl_ObjGetVar2(in, npav[0], 0, 0); ic = 4; } result = Tcl_EvalObjv(in, ic, invocation, 0); /* objPtr = Tcl_ConcatObj(ic, invocation); fprintf(stderr,"eval on <%s>\n",ObjStr(objPtr)); result = Tcl_EvalObjEx(in, objPtr, TCL_EVAL_DIRECT); */ if (result != TCL_OK) { return result; } } } } } return TCL_OK; } /* create a slave interp that calls XOTcl Init */ static int XOTcl_InterpObjCmd(ClientData cd, Tcl_Interp *in, int objc, Tcl_Obj *CONST objv[]) { Tcl_Interp *slave; char *subCmd; ALLOC_ON_STACK(Tcl_Obj*,objc, ov); memcpy(ov, objv, sizeof(Tcl_Obj *)*objc); if (objc < 1) { XOTclObjErrArgCnt(in, NULL, "::xotcl::interp name ?args?"); goto interp_error; } ov[0] = XOTclGlobalObjects[XOTE_INTERP]; if (Tcl_EvalObjv(in, objc, ov, TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) != TCL_OK) { goto interp_error; } subCmd = ObjStr(ov[1]); if (isCreateString(subCmd)) { slave = Tcl_GetSlave(in, ObjStr(ov[2])); if (!slave) { XOTclVarErrMsg(in, "Creation of slave interpreter failed", (char *) NULL); goto interp_error; } if (Xotcl_Init(slave) == TCL_ERROR) { goto interp_error; } #ifdef XOTCL_MEM_COUNT xotclMemCountInterpCounter++; #endif } FREE_ON_STACK(ov); return TCL_OK; interp_error: FREE_ON_STACK(ov); return TCL_ERROR; } extern Tcl_Obj* XOTclOGetInstVar2(XOTcl_Object *obj, Tcl_Interp *in, Tcl_Obj *name1, Tcl_Obj *name2, int flgs) { Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrame(in, (XOTclObject*)obj); if (((XOTclObject*)obj)->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_ObjGetVar2(in, name1, name2, flgs); XOTcl_PopFrame(in, (XOTclObject*)obj); return result; } #if !defined(NDEBUG) static void checkAllInstances(Tcl_Interp *in, XOTclClass *cl, int lvl) { Tcl_HashSearch search; Tcl_HashEntry *hPtr; if (cl && cl->object.refCount>0) { /*fprintf(stderr,"checkallinstances %d cl=%p '%s'\n", lvl, cl, ObjStr(cl->object.cmdName));*/ for (hPtr = Tcl_FirstHashEntry(&cl->instances, &search); hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) { XOTclObject *inst = (XOTclObject*) Tcl_GetHashKey(&cl->instances, hPtr); assert(inst); assert(inst->refCount>0); assert(inst->cmdName->refCount>0); if (XOTclObjectIsClass(inst) && (XOTclClass*)inst != RUNTIME_STATE(in)->theClass) { checkAllInstances(in, (XOTclClass*) inst, lvl+1); } } } } #endif #ifdef DO_FULL_CLEANUP /* delete global variables and procs */ static void deleteProcsAndVars(Tcl_Interp *in) { Tcl_Namespace *ns = Tcl_GetGlobalNamespace(in); Tcl_HashTable *varTable = ns ? Tcl_Namespace_varTable(ns) : NULL; Tcl_HashTable *cmdTable = ns ? Tcl_Namespace_cmdTable(ns) : NULL; Tcl_HashSearch search; Var *varPtr; Tcl_Command cmd; register Tcl_HashEntry *entryPtr; char *varName; entryPtr = Tcl_FirstHashEntry(varTable, &search); while (entryPtr != NULL) { Tcl_Obj *nameObj; getVarAndNameFromHash(entryPtr, &varPtr, &nameObj); if (!TclIsVarUndefined(varPtr) || TclIsVarNamespaceVar(varPtr)) { /* fprintf(stderr, "unsetting var %s\n", ObjStr(nameObj));*/ Tcl_UnsetVar2(in, ObjStr(nameObj), (char *)NULL, TCL_GLOBAL_ONLY); } entryPtr = Tcl_NextHashEntry(&search); } entryPtr = Tcl_FirstHashEntry(cmdTable, &search); while (entryPtr) { cmd = (Tcl_Command)Tcl_GetHashValue(entryPtr); if (Tcl_Command_objProc(cmd) == RUNTIME_STATE(in)->objInterpProc) { char *key = Tcl_GetHashKey(cmdTable, entryPtr); /*fprintf(stderr, "cmdname = %s cmd %p proc %p objProc %p %d\n", key,cmd,Tcl_Command_proc(cmd),Tcl_Command_objProc(cmd), Tcl_Command_proc(cmd)==RUNTIME_STATE(in)->objInterpProc);*/ Tcl_DeleteCommandFromToken(in, cmd); } entryPtr = Tcl_NextHashEntry(&search); } } #endif #ifdef DO_CLEANUP static int ClassHasSubclasses(XOTclClass *cl) { return (cl->sub != NULL); } static int ClassHasInstances(XOTclClass *cl) { Tcl_HashSearch hSrch; return (Tcl_FirstHashEntry(&cl->instances, &hSrch) != NULL); } static int ObjectHasChildren(Tcl_Interp *in, XOTclObject *obj) { Tcl_Namespace *ns = obj->nsPtr; int result = 0; if (ns) { Tcl_HashEntry *hPtr; Tcl_HashSearch hSrch; Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); XOTcl_FrameDecls; XOTcl_PushFrame(in, obj); for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(cmdTable, hPtr); if (XOTclpGetObject(in, key)) { /*fprintf(stderr,"child = %s\n",key);*/ result = 1; break; } } XOTcl_PopFrame(in,obj); } return result; } static void freeAllXOTclObjectsAndClasses(Tcl_Interp *in, Tcl_HashTable *commandTable) { Tcl_HashEntry *hPtr, *hDel; Tcl_HashSearch hSrch; XOTclObject *obj; XOTclClass *thecls, *theobj, *cl; /* fprintf(stderr,"??? freeAllXOTclObjectsAndClasses in %p\n", in); */ thecls = RUNTIME_STATE(in)->theClass; theobj = RUNTIME_STATE(in)->theObject; /***** PHYSICAL DESTROY *****/ RUNTIME_STATE(in)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY; while (1) { int deleted = 0; hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); while (hPtr) { char *key = Tcl_GetHashKey(commandTable, hPtr); obj = XOTclpGetObject(in, key); if (obj && !XOTclObjectIsClass(obj) && !ObjectHasChildren(in,obj)) { /* fprintf(stderr," ... delete object %s %p, class=%s\n",key,obj, ObjStr(obj->cl->object.cmdName));*/ freeUnsetTraceVariable(in, obj); Tcl_DeleteCommandFromToken(in, obj->id); hDel = hPtr; deleted++; } else { hDel = NULL; } hPtr = Tcl_NextHashEntry(&hSrch); if (hDel) Tcl_DeleteHashEntry(hDel); } /* fprintf(stderr, "deleted %d Objects\n",deleted);*/ if (deleted>0) continue; hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); while (hPtr) { char *key = Tcl_GetHashKey(commandTable, hPtr); cl = XOTclpGetClass(in, key); /* fprintf(stderr,"cl key = %s %p\n", key, cl); */ if (cl && !ObjectHasChildren(in, (XOTclObject*)cl) && !ClassHasInstances(cl) && !ClassHasSubclasses(cl) && cl != RUNTIME_STATE(in)->theClass && cl != RUNTIME_STATE(in)->theObject ) { /* fprintf(stderr," ... delete class %s %p\n",key,cl); */ freeUnsetTraceVariable(in, &cl->object); Tcl_DeleteCommandFromToken(in, cl->object.id); hDel = hPtr; deleted++; } else { hDel = NULL; } hPtr = Tcl_NextHashEntry(&hSrch); if (hDel) Tcl_DeleteHashEntry(hDel); } /* fprintf(stderr, "deleted %d Classes\n",deleted);*/ if (deleted == 0) { break; } } #ifdef DO_FULL_CLEANUP deleteProcsAndVars(in); #endif RUNTIME_STATE(in)->callDestroy = 0; RemoveSuper(thecls, theobj); RemoveInstance((XOTclObject*)thecls, thecls); RemoveInstance((XOTclObject*)theobj, thecls); Tcl_DeleteCommandFromToken(in, theobj->object.id); RUNTIME_STATE(in)->theObject = NULL; Tcl_DeleteCommandFromToken(in, thecls->object.id); RUNTIME_STATE(in)->theClass = NULL; XOTcl_DeleteNamespace(in, RUNTIME_STATE(in)->fakeNS); XOTcl_DeleteNamespace(in, RUNTIME_STATE(in)->XOTclClassesNS); XOTcl_DeleteNamespace(in, RUNTIME_STATE(in)->XOTclNS); } #endif /* DO_CLEANUP */ /* * Exit Handler */ static void ExitHandler(ClientData cd) { Tcl_Interp *in = (Tcl_Interp *) cd; XOTclObject *obj; XOTclClass *cl; int result, flags, i; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; Tcl_HashTable objTable, *commandTable = &objTable; XOTclCallStack *cs = &RUNTIME_STATE(in)->cs; /* * Don't use exit handler, if the interpreted is destroyed already * Call to exit handler comes after freeing namespaces, commands, etc. * e.g. TK calls Tcl_DeleteInterp directly, if Window is killed */ /* * Ahem ... * * Since we *must* be sure that our destroy methods will run * we must *cheat* (I mean CHEAT) here: we flip the interp * flag, saying, "hey boy, you're not deleted any more". * After our handlers are done, we restore the old state... * All this is needed so we can do an eval in the interp which * is potentially marked for delete when we start working here. * * I know, I know, this is not really elegant. But... I'd need a * standard way of invoking some code at interpreter delete time * but JUST BEFORE the actual deletion process starts. Sadly, * there is no such hook in Tcl as of Tcl8.3.2, that I know of. * * So, for the rest of procedure, assume the interp is alive ! */ /*fprintf(stderr,"+++ EXIT handler\n"); */ flags = Tcl_Interp_flags(in); Tcl_Interp_flags(in) &= ~DELETED; #if defined(PROFILE) XOTclProfilePrintData(in); #endif /* * evaluate user-defined exit handler */ result = callMethod((ClientData)RUNTIME_STATE(in)->theObject, in, XOTclGlobalObjects[XOTE_EXIT_HANDLER], 2, 0, 0); if (result != TCL_OK) { fprintf(stderr,"User defined exit handler contains errors!\n" "Error in line %d: %s\nExecution interrupted.\n", in->errorLine, ObjStr(Tcl_GetObjResult(in))); } /* * Pop any callstack entry that is still alive (e.g. * if "exit" is called and we were jumping out of the * callframe */ while (cs->top > cs->content) CallStackPop(in); while (1) { Tcl_CallFrame *f = Tcl_Interp_framePtr(in); if (!f) break; if (Tcl_CallFrame_level(f) == 0) break; Tcl_PopCallFrame(in); } /* deleting in two rounds: * (a) SOFT DESTROY: call all user-defined destroys * (b) PHYSICAL DESTROY: delete the commands, user-defined * destroys are not executed anymore * * this is to prevent user-defined destroys from overriding physical * destroy during exit handler, but still ensure that all * user-defined destroys are called. */ Tcl_InitHashTable(commandTable, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable",commandTable); getAllInstances(commandTable, RUNTIME_STATE(in)->theClass); /***** SOFT DESTROY *****/ RUNTIME_STATE(in)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_ON_SOFT_DESTROY; hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); while (hPtr) { char *key = Tcl_GetHashKey(commandTable, hPtr); obj = XOTclpGetObject(in, key); /* fprintf(stderr,"key = %s %p %d\n", key, obj, obj && !XOTclObjectIsClass(obj)); */ if (obj && !XOTclObjectIsClass(obj) && !(obj->flags & XOTCL_DESTROY_CALLED)) callDestroyMethod((ClientData)obj, in, obj, 0); hPtr = Tcl_NextHashEntry(&hSrch); } hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); while (hPtr) { char *key = Tcl_GetHashKey(commandTable, hPtr); cl = XOTclpGetClass(in, key); if (cl && !(cl->object.flags & XOTCL_DESTROY_CALLED)) callDestroyMethod((ClientData)cl, in, (XOTclObject*)cl, 0); hPtr = Tcl_NextHashEntry(&hSrch); } #ifdef DO_CLEANUP freeAllXOTclObjectsAndClasses(in, commandTable); #endif /* must be before freeing of XOTclGlobalObjects */ XOTclShadowTclCommands(in, SHADOW_UNLOAD); /* free global objects */ for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { DECR_REF_COUNT(XOTclGlobalObjects[i]); } XOTclStringIncrFree(&RUNTIME_STATE(in)->iss); FREE(Tcl_Obj**, XOTclGlobalObjects); FREE(XOTclRuntimeState, RUNTIME_STATE(in)); MEM_COUNT_FREE("Tcl_InitHashTable",commandTable); Tcl_DeleteHashTable(commandTable); #if defined(TCL_MEM_DEBUG) TclDumpMemoryInfo (stderr); Tcl_DumpActiveMemory ("./xotclActiveMem"); /* Tcl_GlobalEval(in, "puts {checkmem to checkmemFile}; checkmem checkmemFile"); */ #endif MEM_COUNT_DUMP(); Tcl_Interp_flags(in) = flags; Tcl_Release((ClientData) in); } #if defined(TCL_THREADS) /* * Gets activated at thread-exit */ static void XOTcl_ThreadExitProc(ClientData cd) { /*fprintf(stderr,"+++ XOTcl_ThreadExitProc\n");*/ #if !defined(PRE83) void XOTcl_ExitProc(ClientData cd); Tcl_DeleteExitHandler(XOTcl_ExitProc, cd); #endif ExitHandler(cd); } #endif /* * Gets activated at application-exit */ void XOTcl_ExitProc(ClientData cd) { /*fprintf(stderr,"+++ XOTcl_ExitProc\n");*/ #if !defined(PRE83) && defined(TCL_THREADS) Tcl_DeleteThreadExitHandler(XOTcl_ThreadExitProc, cd); #endif ExitHandler(cd); } /* * Registers thread/appl exit handlers. */ static void RegisterExitHandlers(ClientData cd) { Tcl_Preserve(cd); #if !defined(PRE83) && defined(TCL_THREADS) Tcl_CreateThreadExitHandler(XOTcl_ThreadExitProc, cd); #endif Tcl_CreateExitHandler(XOTcl_ExitProc, cd); } /* * Tcl extension initialization routine */ extern int Xotcl_Init(Tcl_Interp *in) { XOTclClass *theobj = 0; XOTclClass *thecls = 0; XOTclClass *paramCl = 0; XOTclClass *nonposArgsCl = 0; ClientData runtimeState; int result, i; #ifdef XOTCL_BYTECODE XOTclCompEnv *instructions = XOTclGetCompEnv(); #endif #ifndef PRE81 # ifdef USE_TCL_STUBS if (Tcl_InitStubs(in, "8.1", 0) == NULL) { return TCL_ERROR; } # endif #endif #if defined(TCL_MEM_DEBUG) TclDumpMemoryInfo(stderr); #endif MEM_COUNT_INIT(); /* fprintf(stderr, "SIZES: obj=%d, tcl_obj=%d, DString=%d, class=%d, namespace=%d, command=%d, HashTable=%d\n", sizeof(XOTclObject), sizeof(Tcl_Obj), sizeof(Tcl_DString), sizeof(XOTclClass), sizeof(Namespace), sizeof(Command), sizeof(Tcl_HashTable)); */ #if FORWARD_COMPATIBLE { int major, minor, patchlvl, type; Tcl_GetVersion(&major, &minor, &patchlvl, &type); if ((major == 8) && (minor < 5)) { /* * loading a version of xotcl compiled for 8.4 version * into a 8.4 Tcl */ /* fprintf(stderr, "loading a version of xotcl compiled for 8.4 version into a 8.4 Tcl\n"); */ forwardCompatibleMode = 0; lookupVarFromTable = LookupVarFromTable84; tclVarHashCreateVar = VarHashCreateVar84; tclInitVarHashTable = InitVarHashTable84; tclCleanupVar = TclCleanupVar84; varRefCountOffset = TclOffset(Var, refCount); varHashTableSize = sizeof(Tcl_HashTable); } else { /* * loading a version of xotcl compiled for 8.4 version * into a 8.5 Tcl */ /* fprintf(stderr, "loading a version of xotcl compiled for 8.4 version into a 8.5 Tcl\n"); */ forwardCompatibleMode = 1; lookupVarFromTable = LookupVarFromTable85; tclVarHashCreateVar = VarHashCreateVar85; tclInitVarHashTable = (Tcl_InitVarHashTableFunction*)*((&tclIntStubsPtr->reserved0)+235); tclCleanupVar = (Tcl_CleanupVarFunction*)*((&tclIntStubsPtr->reserved0)+176); varRefCountOffset = TclOffset(VarInHash, refCount); varHashTableSize = sizeof(TclVarHashTable85); } } #endif /* * Runtime State stored in the client data of the Interp's global * Namespace in order to avoid global state information */ runtimeState = (ClientData) NEW(XOTclRuntimeState); #if USE_ASSOC_DATA Tcl_SetAssocData(in, "XOTclRuntimeState", NULL, runtimeState); #else Tcl_Interp_globalNsPtr(in)->clientData = runtimeState; #endif /* CallStack initialization */ memset(RUNTIME_STATE(in), 0, sizeof(XOTclRuntimeState)); memset(RUNTIME_STATE(in)->cs.content, 0, sizeof(XOTclCallStackContent)); RUNTIME_STATE(in)->cs.top = RUNTIME_STATE(in)->cs.content; RUNTIME_STATE(in)->doFilters = 1; RUNTIME_STATE(in)->callDestroy = 1; /* create xotcl namespace */ RUNTIME_STATE(in)->XOTclNS = Tcl_CreateNamespace(in, "::xotcl", (ClientData)NULL, (Tcl_NamespaceDeleteProc*)NULL); MEM_COUNT_ALLOC("TclNamespace",RUNTIME_STATE(in)->XOTclNS); /* * init an empty, faked proc structure in the RUNTIME state */ RUNTIME_STATE(in)->fakeProc.iPtr = (Interp *)in; RUNTIME_STATE(in)->fakeProc.refCount = 1; RUNTIME_STATE(in)->fakeProc.cmdPtr = NULL; RUNTIME_STATE(in)->fakeProc.bodyPtr = NULL; RUNTIME_STATE(in)->fakeProc.numArgs = 0; RUNTIME_STATE(in)->fakeProc.numCompiledLocals = 0; RUNTIME_STATE(in)->fakeProc.firstLocalPtr = NULL; RUNTIME_STATE(in)->fakeProc.lastLocalPtr = NULL; RUNTIME_STATE(in)->fakeNS = Tcl_CreateNamespace(in, "::xotcl::fakeNS", (ClientData)NULL, (Tcl_NamespaceDeleteProc*)NULL); MEM_COUNT_ALLOC("TclNamespace",RUNTIME_STATE(in)->fakeNS); /* XOTclClasses in separate Namespace / Objects */ RUNTIME_STATE(in)->XOTclClassesNS = Tcl_CreateNamespace(in, "::xotcl::classes", (ClientData)NULL, (Tcl_NamespaceDeleteProc*)NULL); MEM_COUNT_ALLOC("TclNamespace",RUNTIME_STATE(in)->XOTclClassesNS); /* cache interpreters proc interpretation functions */ RUNTIME_STATE(in)->objInterpProc = TclGetObjInterpProc(); #if USE_INTERP_PROC RUNTIME_STATE(in)->interpProc = TclGetInterpProc(); #endif RUNTIME_STATE(in)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_OFF; RegisterObjTypes(); RegisterExitHandlers((ClientData)in); XOTclStringIncrInit(&RUNTIME_STATE(in)->iss); /* initialize global Tcl_Obj*/ XOTclGlobalObjects = NEW_ARRAY(Tcl_Obj*,nr_elements(XOTclGlobalStrings)); for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { XOTclGlobalObjects[i] = Tcl_NewStringObj(XOTclGlobalStrings[i],-1); INCR_REF_COUNT(XOTclGlobalObjects[i]); } /* create Object and Class, and store them in the RUNTIME STATE */ theobj = PrimitiveCCreate(in, "::xotcl::Object", 0); RUNTIME_STATE(in)->theObject = theobj; if (!theobj) panic("Cannot create ::xotcl::Object",0); thecls = PrimitiveCCreate(in, "::xotcl::Class", 0); RUNTIME_STATE(in)->theClass = thecls; if (!thecls) panic("Cannot create ::xotcl::Class",0); theobj->parent = 0; thecls->parent = theobj; Tcl_Export(in, RUNTIME_STATE(in)->XOTclNS, "Object", 0); Tcl_Export(in, RUNTIME_STATE(in)->XOTclNS, "Class", 0); /*Tcl_AddInterpResolvers(in, "XOTcl", XOTclResolveCmd, 0, 0);*/ #if defined(PROFILE) XOTclProfileInit(in); #endif /* test Object and Class creation */ if (!theobj || !thecls) { RUNTIME_STATE(in)->callDestroy = 0; if (thecls) PrimitiveCDestroy((ClientData) thecls); if (theobj) PrimitiveCDestroy((ClientData) theobj); for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { DECR_REF_COUNT(XOTclGlobalObjects[i]); } FREE(Tcl_Obj**, XOTclGlobalObjects); FREE(XOTclRuntimeState, RUNTIME_STATE(in)); return XOTclErrMsg(in, "Object/Class failed", TCL_STATIC); } AddInstance((XOTclObject*)theobj, thecls); AddInstance((XOTclObject*)thecls, thecls); AddSuper(thecls, theobj); { typedef struct methodDefinition { char *methodName; Tcl_ObjCmdProc *proc; } methodDefinition; methodDefinition objInstcmds[] = { {"autoname", XOTclOAutonameMethod}, {"check", XOTclOCheckMethod}, {"cleanup", XOTclOCleanupMethod}, {"configure", XOTclOConfigureMethod}, {"destroy", XOTclODestroyMethod}, {"exists", XOTclOExistsMethod}, {"filterguard", XOTclOFilterGuardMethod}, {"filtersearch", XOTclOFilterSearchMethod}, {"info", XOTclOInfoMethod}, {"instvar", XOTclOInstVarMethod}, {"invar", XOTclOInvariantsMethod}, {"isclass", XOTclOIsClassMethod}, {"ismetaclass", XOTclOIsMetaClassMethod}, {"isobject", XOTclOIsObjectMethod}, {"istype", XOTclOIsTypeMethod}, {"ismixin", XOTclOIsMixinMethod}, #ifdef XOTCL_METADATA {"metadata", XOTclOMetaDataMethod}, #endif {"mixinguard", XOTclOMixinGuardMethod}, {"__next", XOTclONextMethod}, /* {"next", XOTclONextMethod2},*/ {"noinit", XOTclONoinitMethod}, {"parametercmd", XOTclCParameterCmdMethod}, { "proc", XOTclOProcMethod}, {"procsearch", XOTclOProcSearchMethod}, {"requireNamespace", XOTclORequireNamespaceMethod}, {"set", XOTclOSetMethod}, /***??**/ {"forward", XOTclOForwardMethod}, {"uplevel", XOTclOUplevelMethod}, {"upvar", XOTclOUpvarMethod}, {"volatile", XOTclOVolatileMethod}, {"vwait", XOTclOVwaitMethod} }; methodDefinition classInstcmds[] = { {"autoname", XOTclOAutonameMethod}, {"alloc", XOTclCAllocMethod}, {"create", XOTclCCreateMethod}, {"new", XOTclCNewMethod}, {"info", XOTclCInfoMethod}, {"instdestroy", XOTclCInstDestroyMethod}, {"instfilterguard", XOTclCInstFilterGuardMethod}, {"instinvar", XOTclCInvariantsMethod}, {"instmixinguard", XOTclCInstMixinGuardMethod}, {"instparametercmd", XOTclCInstParameterCmdMethod}, {"instproc", XOTclCInstProcMethod}, {"instforward", XOTclCInstForwardMethod}, {"parameter", XOTclCParameterMethod}, {"parameterclass", XOTclCParameterClassMethod}, {"recreate", XOTclCRecreateMethod}, {"unknown", XOTclCUnknownMethod} }; int namespacelength; Tcl_DString ds, *dsPtr = &ds; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr,"::xotcl::Object::instcmd", -1); Tcl_CreateNamespace(in, Tcl_DStringValue(dsPtr), 0, (Tcl_NamespaceDeleteProc*)NULL); Tcl_DStringAppend(dsPtr,"::", 2); namespacelength = Tcl_DStringLength(dsPtr); for (i = 0; i < nr_elements(objInstcmds); i++) { Tcl_DStringAppend(dsPtr, objInstcmds[i].methodName, -1); Tcl_CreateObjCommand(in, Tcl_DStringValue(dsPtr), objInstcmds[i].proc, 0, 0); Tcl_DStringSetLength(dsPtr, namespacelength); } Tcl_DStringSetLength(dsPtr, 0); Tcl_DStringAppend(dsPtr,"::xotcl::Class::instcmd", -1); Tcl_CreateNamespace(in, Tcl_DStringValue(dsPtr), 0, (Tcl_NamespaceDeleteProc*)NULL); Tcl_DStringAppend(dsPtr,"::", 2); namespacelength = Tcl_DStringLength(dsPtr); for (i = 0; i < nr_elements(classInstcmds); i++) { Tcl_DStringAppend(dsPtr, classInstcmds[i].methodName, -1); Tcl_CreateObjCommand(in, Tcl_DStringValue(dsPtr), classInstcmds[i].proc, 0, 0); Tcl_DStringSetLength(dsPtr, namespacelength); } DSTRING_FREE(dsPtr); } /* * overwritten tcl objs */ result = XOTclShadowTclCommands(in, SHADOW_LOAD); if (result != TCL_OK) return result; /* * new tcl cmds */ #ifdef XOTCL_BYTECODE instructions[INST_SELF_DISPATCH].cmdPtr = (Command *) #endif Tcl_CreateObjCommand(in, "::xotcl::my", XOTclSelfDispatchCmd, 0, 0); #ifdef XOTCL_BYTECODE instructions[INST_NEXT].cmdPtr = (Command *) #endif Tcl_CreateObjCommand(in, "::xotcl::next", XOTclNextObjCmd, 0, 0); #ifdef XOTCL_BYTECODE instructions[INST_SELF].cmdPtr = (Command *) #endif Tcl_CreateObjCommand(in, "::xotcl::self", XOTclGetSelfObjCmd, 0, 0); /*Tcl_CreateObjCommand(in, "::xotcl::K", XOTclKObjCmd, 0, 0);*/ Tcl_CreateObjCommand(in, "::xotcl::alias", XOTclAliasCommand, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::configure", XOTclConfigureCommand, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::deprecated", XOTcl_DeprecatedCmd, 0, 0); #ifdef XOTCL_BYTECODE instructions[INST_INITPROC].cmdPtr = (Command *) #endif Tcl_CreateObjCommand(in, "::xotcl::initProcNS", XOTclInitProcNSCmd, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::interpretNonpositionalArgs", XOTclInterpretNonpositionalArgsCmd, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::interp", XOTcl_InterpObjCmd, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::namespace_copyvars", XOTcl_NSCopyVars, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::namespace_copycmds", XOTcl_NSCopyCmds, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::__qualify", XOTclQualifyObjCmd, 0,0); Tcl_CreateObjCommand(in, "::xotcl::setinstvar", XOTclSetInstvarCommand, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::setrelation", XOTclSetRelationCommand, 0, 0); Tcl_CreateObjCommand(in, "::xotcl::trace", XOTcl_TraceObjCmd, 0, 0); Tcl_Export(in, RUNTIME_STATE(in)->XOTclNS, "self", 0); Tcl_Export(in, RUNTIME_STATE(in)->XOTclNS, "next", 0); Tcl_Export(in, RUNTIME_STATE(in)->XOTclNS, "my", 0); #ifdef XOTCL_BYTECODE XOTclBytecodeInit(); #endif /* * Non-Positional Args Object */ nonposArgsCl = PrimitiveCCreate(in, XOTclGlobalStrings[XOTE_NON_POS_ARGS_CL], thecls); XOTclAddIMethod(in, (XOTcl_Class*) nonposArgsCl, "required", (Tcl_ObjCmdProc*) XOTclCheckRequiredArgs, 0, 0); XOTclAddIMethod(in, (XOTcl_Class*) nonposArgsCl, "switch", (Tcl_ObjCmdProc*) XOTclCheckBooleanArgs, 0, 0); XOTclAddIMethod(in, (XOTcl_Class*) nonposArgsCl, "boolean", (Tcl_ObjCmdProc*) XOTclCheckBooleanArgs, 0, 0); PrimitiveOCreate(in, XOTclGlobalStrings[XOTE_NON_POS_ARGS_OBJ], nonposArgsCl); /* * Parameter Class */ { XOTclObject *paramObject; paramCl = PrimitiveCCreate(in, XOTclGlobalStrings[XOTE_PARAM_CL], thecls); paramObject = ¶mCl->object; XOTclAddPMethod(in, (XOTcl_Object*) paramObject, XOTclGlobalStrings[XOTE_SEARCH_DEFAULTS], (Tcl_ObjCmdProc*) ParameterSearchDefaultsMethod, 0, 0); } /* * set runtime version information in Tcl variable */ Tcl_SetVar(in, "::xotcl::version", XOTCLVERSION, TCL_GLOBAL_ONLY); Tcl_SetVar(in, "::xotcl::patchlevel", XOTCLPATCHLEVEL, TCL_GLOBAL_ONLY); /* * with some methods and library procs in tcl - they could go in a * xotcl.tcl file, but they're embedded here with Tcl_GlobalEval * to avoid the need to carry around a separate file at runtime. */ { #include "predefined.h" /* fprintf(stderr, "predefined=<<%s>>\n",cmd);*/ if (Tcl_GlobalEval(in, cmd) != TCL_OK) return TCL_ERROR; } #ifndef AOL_SERVER /* the AOL server uses a different package loading mechanism */ # ifdef COMPILE_XOTCL_STUBS Tcl_PkgProvideEx(in, "XOTcl", PACKAGE_VERSION, (ClientData) &xotclStubs); # else Tcl_PkgProvide(in, "XOTcl", PACKAGE_VERSION); # endif #endif #if !defined(TCL_THREADS) && !defined(PRE81) if ((Tcl_GetVar2(in, "tcl_platform", "threaded", TCL_GLOBAL_ONLY) != NULL)) { /* a non threaded XOTcl version is loaded into a threaded environment */ fprintf(stderr, "\n A non threaded XOTCL version is loaded into threaded environment\n Please reconfigure XOTcl with --enable-threads!\n\n\n"); } #endif Tcl_ResetResult(in); Tcl_SetIntObj(Tcl_GetObjResult(in), 1); return TCL_OK; } extern int Xotcl_SafeInit(Tcl_Interp *interp) { /*** dummy for now **/ return Xotcl_Init(interp); }