diff options
Diffstat (limited to 'generic/tclExecute.c')
| -rw-r--r-- | generic/tclExecute.c | 132 |
1 files changed, 118 insertions, 14 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c index 5b42124..ac0ea12 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -4539,6 +4539,7 @@ TEBCresume( Object *oPtr; CallFrame *framePtr; CallContext *contextPtr; + int skip, newDepth; case INST_TCLOO_SELF: framePtr = iPtr->varFramePtr; @@ -4563,9 +4564,111 @@ TEBCresume( TRACE_WITH_OBJ(("=> "), objResultPtr); NEXT_INST_F(1, 0, 1); + case INST_TCLOO_NEXT_CLASS: + opnd = TclGetUInt1AtPtr(pc+1); + framePtr = iPtr->varFramePtr; + valuePtr = OBJ_AT_DEPTH(opnd - 2); + objv = &OBJ_AT_DEPTH(opnd - 1); + skip = 2; + TRACE(("%d => ", opnd)); + if (framePtr == NULL || + !(framePtr->isProcCallFrame & FRAME_IS_METHOD)) { + TRACE_APPEND(("ERROR: no TclOO call context\n")); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "nextto may only be called from inside a method", + -1)); + DECACHE_STACK_INFO(); + Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL); + CACHE_STACK_INFO(); + goto gotError; + } + contextPtr = framePtr->clientData; + + oPtr = (Object *) Tcl_GetObjectFromObj(interp, valuePtr); + if (oPtr == NULL) { + TRACE_APPEND(("ERROR: \"%.30s\" not object\n", O2S(valuePtr))); + goto gotError; + } else { + Class *classPtr = oPtr->classPtr; + struct MInvoke *miPtr; + int i; + const char *methodType; + + if (classPtr == NULL) { + TRACE_APPEND(("ERROR: \"%.30s\" not class\n", O2S(valuePtr))); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "\"%s\" is not a class", TclGetString(valuePtr))); + DECACHE_STACK_INFO(); + Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_REQUIRED", NULL); + CACHE_STACK_INFO(); + goto gotError; + } + + for (i=contextPtr->index+1 ; i<contextPtr->callPtr->numChain ; i++) { + miPtr = contextPtr->callPtr->chain + i; + if (!miPtr->isFilter && + miPtr->mPtr->declaringClassPtr == classPtr) { + newDepth = i; +#ifdef TCL_COMPILE_DEBUG + if (tclTraceExec >= 2) { + if (traceInstructions) { + strncpy(cmdNameBuf, TclGetString(objv[0]), 20); + } else { + fprintf(stdout, "%d: (%u) invoking ", + iPtr->numLevels, + (unsigned)(pc - codePtr->codeStart)); + } + for (i = 0; i < opnd; i++) { + TclPrintObject(stdout, objv[i], 15); + fprintf(stdout, " "); + } + fprintf(stdout, "\n"); + fflush(stdout); + } +#endif /*TCL_COMPILE_DEBUG*/ + goto doInvokeNext; + } + } + + if (contextPtr->callPtr->flags & CONSTRUCTOR) { + methodType = "constructor"; + } else if (contextPtr->callPtr->flags & DESTRUCTOR) { + methodType = "destructor"; + } else { + methodType = "method"; + } + + TRACE_APPEND(("ERROR: \"%.30s\" not on reachable chain\n", + O2S(valuePtr))); + for (i=contextPtr->index ; i>=0 ; i--) { + miPtr = contextPtr->callPtr->chain + i; + if (miPtr->isFilter + || miPtr->mPtr->declaringClassPtr != classPtr) { + continue; + } + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "%s implementation by \"%s\" not reachable from here", + methodType, TclGetString(valuePtr))); + DECACHE_STACK_INFO(); + Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_REACHABLE", + NULL); + CACHE_STACK_INFO(); + goto gotError; + } + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "%s has no non-filter implementation by \"%s\"", + methodType, TclGetString(valuePtr))); + DECACHE_STACK_INFO(); + Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_THERE", NULL); + CACHE_STACK_INFO(); + goto gotError; + } + case INST_TCLOO_NEXT: opnd = TclGetUInt1AtPtr(pc+1); + objv = &OBJ_AT_DEPTH(opnd - 1); framePtr = iPtr->varFramePtr; + skip = 1; TRACE(("%d => ", opnd)); if (framePtr == NULL || !(framePtr->isProcCallFrame & FRAME_IS_METHOD)) { @@ -4580,7 +4683,8 @@ TEBCresume( } contextPtr = framePtr->clientData; - if (contextPtr->index+1 >= contextPtr->callPtr->numChain) { + newDepth = contextPtr->index + 1; + if (newDepth >= contextPtr->callPtr->numChain) { /* * We're at the end of the chain; generate an error message unless * the interpreter is being torn down, in which case we might be @@ -4605,33 +4709,31 @@ TEBCresume( Tcl_SetErrorCode(interp, "TCL", "OO", "NOTHING_NEXT", NULL); CACHE_STACK_INFO(); goto gotError; - } - #ifdef TCL_COMPILE_DEBUG - if (tclTraceExec >= 2) { + } else if (tclTraceExec >= 2) { int i; if (traceInstructions) { strncpy(cmdNameBuf, TclGetString(objv[0]), 20); - TRACE(("next_in_chain ")); } else { - fprintf(stdout, "%d: (%u) invoking next_in_chain ", + fprintf(stdout, "%d: (%u) invoking ", iPtr->numLevels, (unsigned)(pc - codePtr->codeStart)); } - for (i = 0; i < objc; i++) { + for (i = 0; i < opnd; i++) { TclPrintObject(stdout, objv[i], 15); fprintf(stdout, " "); } fprintf(stdout, "\n"); fflush(stdout); - } #endif /*TCL_COMPILE_DEBUG*/ + } + doInvokeNext: bcFramePtr->data.tebc.pc = (char *) pc; iPtr->cmdFramePtr = bcFramePtr; if (iPtr->flags & INTERP_DEBUG_FRAME) { - ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv); + ArgumentBCEnter(interp, codePtr, TD, pc, opnd, objv); } pcAdjustment = 2; @@ -4640,6 +4742,7 @@ TEBCresume( iPtr->varFramePtr = framePtr->callerVarPtr; pc += pcAdjustment; TEBC_YIELD(); + oPtr = contextPtr->oPtr; if (oPtr->flags & FILTER_HANDLING) { TclNRAddCallback(interp, FinalizeOONextFilter, @@ -4650,20 +4753,21 @@ TEBCresume( framePtr, contextPtr, INT2PTR(contextPtr->index), INT2PTR(contextPtr->skip)); } - if (contextPtr->callPtr->chain[++contextPtr->index].isFilter + contextPtr->skip = skip; + contextPtr->index = newDepth; + if (contextPtr->callPtr->chain[newDepth].isFilter || contextPtr->callPtr->flags & FILTER_HANDLING) { oPtr->flags |= FILTER_HANDLING; } else { oPtr->flags &= ~FILTER_HANDLING; } - contextPtr->skip = 1; + { register Method *const mPtr = - contextPtr->callPtr->chain[contextPtr->index].mPtr; + contextPtr->callPtr->chain[newDepth].mPtr; return mPtr->typePtr->callProc(mPtr->clientData, interp, - (Tcl_ObjectContext) contextPtr, opnd, - &OBJ_AT_DEPTH(opnd-1)); + (Tcl_ObjectContext) contextPtr, opnd, objv); } case INST_TCLOO_IS_OBJECT: |