void transStatement (void) {
getToken();
ifTokenGetElseError(TKN_IDENTIFIER, ABL_ERR_MISSING_STATE_IDENTIFIER);
SymTableNodePtr IdPtr = searchSymTableForState(wordString, SymTableDisplay[1]);
if (!IdPtr) {
// New symbol, so let's assume it's a state defined later. We'll make it
IdPtr = forwardState(wordString);
}
if (!IdPtr || (IdPtr->defn.key != DFN_FUNCTION) || ((IdPtr->defn.info.routine.flags & ROUTINE_FLAG_STATE) == 0))
syntaxError(ABL_ERR_MISSING_STATE_IDENTIFIER);
crunchSymTableNodePtr(IdPtr);
// getToken();
}
TypePtr factor (void) {
TypePtr thisType = NULL;
switch (curToken) {
case TKN_IDENTIFIER: {
SymTableNodePtr IdPtr = NULL;
searchAndFindAllSymTables(IdPtr);
switch (IdPtr->defn.key) {
case DFN_FUNCTION:
crunchSymTableNodePtr(IdPtr);
getToken();
thisType = routineCall(IdPtr, 1);
break;
case DFN_CONST:
crunchSymTableNodePtr(IdPtr);
getToken();
thisType = (TypePtr)(IdPtr->typePtr);
break;
default:
thisType = (TypePtr)variable(IdPtr);
break;
}
}
break;
case TKN_NUMBER: {
SymTableNodePtr thisNode = searchSymTable(tokenString, SymTableDisplay[1]);
if (!thisNode)
thisNode = enterSymTable(tokenString, &SymTableDisplay[1]);
if (curLiteral.type == LIT_INTEGER) {
thisNode->typePtr = IntegerTypePtr;
thisType = (TypePtr)(thisNode->typePtr);
thisNode->defn.info.constant.value.integer = curLiteral.value.integer;
}
else {
thisNode->typePtr = RealTypePtr;
thisType = (TypePtr)(thisNode->typePtr);
thisNode->defn.info.constant.value.real = curLiteral.value.real;
}
crunchSymTableNodePtr(thisNode);
getToken();
}
break;
case TKN_STRING: {
long length = strlen(curLiteral.value.string);
if (EnterStateSymbol) {
SymTableNodePtr stateSymbol = searchSymTableForState(curLiteral.value.string, SymTableDisplay[1]);
if (!stateSymbol)
forwardState(curLiteral.value.string);
}
SymTableNodePtr thisNode = searchSymTableForString(tokenString, SymTableDisplay[1]);
if (!thisNode)// {
thisNode = enterSymTable(tokenString, &SymTableDisplay[1]);
if (length == 1) {
thisNode->defn.info.constant.value.character = curLiteral.value.string[0];
thisType = CharTypePtr;
}
else {
thisNode->typePtr = thisType = makeStringType(length);
thisNode->info = (char*)ABLSymbolMallocCallback(length + 1);
if (!thisNode->info)
ABL_Fatal(0, " ABL: Unable to AblSymTableHeap->malloc string literal ");
strcpy(thisNode->info, curLiteral.value.string);
}
//}
crunchSymTableNodePtr(thisNode);
getToken();
}
break;
case TKN_NOT:
getToken();
thisType = factor();
break;
case TKN_LPAREN:
getToken();
thisType = expression();
ifTokenGetElseError(TKN_RPAREN, ABL_ERR_SYNTAX_MISSING_RPAREN);
break;
default:
syntaxError(ABL_ERR_SYNTAX_INVALID_EXPRESSION);
thisType = &DummyType;
break;
}
return(thisType);
}
SymTableNodePtr ABLModule::findState(PSTR stateName)
{
SymTableNodePtr symbol = searchSymTableForState(stateName, ModuleRegistry[handle].moduleIdPtr->defn.info.routine.localSymTable);
return(symbol);
}