TypePtr execDeclaredRoutineCall(SymTableNodePtr routineIdPtr, bool skipOrder) { if(skipOrder) { StackItemPtr curStackFrameBase = tos; //---------------------------------------- // Push parameter values onto the stack... getCodeToken(); if(codeToken == TKN_LPAREN) { execActualParams(routineIdPtr); getCodeToken(); } getCodeToken(); tos = curStackFrameBase; pushInteger(1); return((TypePtr)(routineIdPtr->typePtr)); } int32_t oldLevel = level; // level of caller int32_t newLevel = routineIdPtr->level + 1; // level of callee CallStackLevel++; //------------------------------------------- // First, set up the stack frame of callee... StackItemPtr newStackFrameBasePtr = tos + 1; bool isLibraryCall = (routineIdPtr->library && (routineIdPtr->library != CurRoutineIdPtr->library)); if(isLibraryCall) pushStackFrameHeader(-1, -1); else pushStackFrameHeader(oldLevel, newLevel); //---------------------------------------- // Push parameter values onto the stack... getCodeToken(); if(codeToken == TKN_LPAREN) { execActualParams(routineIdPtr); getCodeToken(); } //------------------------------------------------- // Set the return address in the new stack frame... level = newLevel; stackFrameBasePtr = newStackFrameBasePtr; StackFrameHeaderPtr headerPtr = (StackFrameHeaderPtr)stackFrameBasePtr; headerPtr->returnAddress.address = codeSegmentPtr - 1; //--------------------------------------------------------- // If we're calling a library function, we need to set some // module-specific info... ABLModulePtr PrevModule = nullptr; if(isLibraryCall) { PrevModule = CurModule; CurModule = routineIdPtr->library; CurModuleHandle = CurModule->getHandle(); if(debugger) debugger->setModule(CurModule); StaticDataPtr = CurModule->getStaticData(); CallModuleInit = !CurModule->getInitCalled(); CurModule->setInitCalled(true); // routineEntry(ModuleRegistry[CurModule->getHandle()].moduleIdPtr); } if(ProfileLog) { int32_t functionStartTime = ABLGetTimeCallback(); execute(routineIdPtr); int32_t functionExecTime = ABLGetTimeCallback() - functionStartTime; if(functionExecTime > ProfileLogFunctionTimeLimit) { char s[512]; sprintf_s(s, _countof(s), "[%08d] ", NumExecutions); for(size_t i = 0; i < CallStackLevel; i++) strcat(s, " "); char s1[512]; sprintf_s(s1, _countof(s1), "%s (%d)\n", routineIdPtr->name, functionExecTime); strcat(s, s1); ABL_AddToProfileLog(s); } } else execute(routineIdPtr); //---------------------------------------------------------------- // If we're calling a library function, reset some module-specific // info... if(isLibraryCall) { // routineExit(ModuleRegistry[CurModule->getHandle()].moduleIdPtr); CurModule = PrevModule; CurModuleHandle = CurModule->getHandle(); if(debugger) debugger->setModule(CurModule); StaticDataPtr = CurModule->getStaticData(); } //------------------------------------------------------- // Return from the callee, and grab the first token after // the return... level = oldLevel; getCodeToken(); CallStackLevel--; return((TypePtr)(routineIdPtr->typePtr)); }
int32_t ABLModule::execute(ABLParamPtr moduleParamList, SymTableNodePtr functionIdPtr) { CurModule = this; if(debugger) debugger->setModule(this); //-------------------------- // Execute the ABL module... SymTableNodePtr moduleIdPtr = ModuleRegistry[handle].moduleIdPtr; if(moduleIdPtr->defn.info.routine.flags & ROUTINE_FLAG_FSM) CurFSM = this; else CurFSM = nullptr; NumStateTransitions = 0; //-------------------------------------------- // Point to this module's static data space... StaticDataPtr = staticData; OrderCompletionFlags = orderCallFlags; //--------------------------------- // Init some important variables... CurModuleIdPtr = nullptr; CurRoutineIdPtr = nullptr; FileNumber = -1; errorCount = 0; execStatementCount = 0; NumExecutions++; NewStateSet = false; //------------------ // Init the stack... stackFrameBasePtr = tos = (stack + eternalOffset); //--------------------------------------- // Initialize the module's stack frame... level = 1; CallStackLevel = 0; stackFrameBasePtr = tos + 1; //------------------------- // Function return value... pushInteger(0); //--------------- // Static Link... pushAddress(nullptr); //---------------- // Dynamic Link... pushAddress(nullptr); //------------------ // Return Address... pushAddress(nullptr); //initDebugger(); //---------- // Run it... if(moduleParamList) { //------------------------------------------------------------------------------ // NOTE: Currently, parameter passing of arrays is not functioning. This MUST be // done... int32_t curParam = 0; for(SymTableNodePtr formalIdPtr = (SymTableNodePtr)(moduleIdPtr->defn.info.routine.params); formalIdPtr != nullptr; formalIdPtr = formalIdPtr->next) { TypePtr formalTypePtr = (TypePtr)(formalIdPtr->typePtr); if(formalIdPtr->defn.key == DFN_VALPARAM) { if(formalTypePtr == RealTypePtr) { if(moduleParamList[curParam].type == ABL_PARAM_INTEGER) { //--------------------------------------------- // Real formal parameter, but integer actual... pushReal((float)(moduleParamList[curParam].integer)); } else if(moduleParamList[curParam].type == ABL_PARAM_REAL) pushReal(moduleParamList[curParam].real); } else if(formalTypePtr == IntegerTypePtr) { if(moduleParamList[curParam].type == ABL_PARAM_INTEGER) pushInteger(moduleParamList[curParam].integer); else return(0); } //---------------------------------------------------------- // Formal parameter is an array or record, so make a copy... if((formalTypePtr->form == FRM_ARRAY)/* || (formalTypePtr->form == FRM_RECORD)*/) { //------------------------------------------------------------------------------ // The following is a little inefficient, but is kept this way to keep it clear. // Once it's verified to work, optimize... int32_t size = formalTypePtr->size; PSTR dest = (PSTR)ABLStackMallocCallback((size_t)size); if(!dest) { char err[255]; sprintf(err, "ABL: Unable to AblStackHeap->malloc array parameter [Module %d]", id); ABL_Fatal(0, err); } PSTR src = tos->address; PSTR savePtr = dest; memcpy(dest, src, size); tos->address = savePtr; } } else { //------------------------------- // pass by reference parameter... if(formalTypePtr == RealTypePtr) pushAddress((Address) & (moduleParamList[curParam].real)); else if(formalTypePtr == IntegerTypePtr) pushAddress((Address) & (moduleParamList[curParam].integer)); else return(0); } curParam++; } } CurModuleHandle = handle; CallModuleInit = !initCalled; initCalled = true; ::executeChild(moduleIdPtr, functionIdPtr); memcpy(&returnVal, &returnValue, sizeof(StackItem)); //----------- // Summary... return(execStatementCount); }