public override object VisitFunctionCall([NotNull] CMinusParser.FunctionCallContext context)
{
string functionName = context.ID().GetText();
if (!this.symbolTable.HasSymbol(functionName))
{
this.EmitSemanticErrorMessage($"Function {functionName} called but not declared", context);
return(null);
}
SymbolTable.Symbol foundSymbol = this.symbolTable.GetSymbol(functionName);
if (foundSymbol.construct != SymbolTable.Symbol.Construct.FUNCTION)
{
this.EmitSemanticErrorMessage($"{functionName} called as function but declared as a {foundSymbol.construct}", context);
return(null);
}
if (this.inAssignment && foundSymbol.type == "void")
{
this.EmitSemanticErrorMessage($"Void returning function in assignment", context);
}
return(null);
}
public override object VisitFunctionCall([NotNull] CMinusParser.FunctionCallContext context)
{
if (context.argumentList() != null)
{
this.Visit(context.argumentList());
}
this.writer.CallFunction(context.ID().GetText());
return(base.VisitFunctionCall(context));
}
// TODO - DROP if out of expression and function called returns int
public override object VisitFunctionCall([NotNull] CMinusParser.FunctionCallContext context)
{
if (context.argumentList() != null)
{
this.Visit(context.argumentList());
}
string functionName = context.ID().GetText();
string functionLabel = this.labelGenerator.GenerateFunctionLabel(functionName);
this.EnterContext();
this.writer.WriteFunctionCall(functionLabel);
this.ExitContext();
return(null);
}