public override void CheckSemantics(Scope scope, List<SemanticError> errors)
{
if (Arguments != null)
Arguments.CheckSemantics(scope, errors);
var functionInfo = scope.GetRoutine(FunctionId.Text);
//check if the function exist
if (functionInfo == null)
{
errors.Add(SemanticError.FunctionDoesNotExist(FunctionId.Text, this));
return;
}
if (functionInfo.ParameterCount != 0 && Arguments == null)
{
errors.Add(SemanticError.WrongParameterNumber("Function", FunctionId.Text, functionInfo.ParameterCount, 0, this));
return;
}
if (Arguments != null && Arguments.Count != functionInfo.ParameterCount)
{
errors.Add(SemanticError.WrongParameterNumber("Function", FunctionId.Text, functionInfo.ParameterCount, this.Arguments.Count, this));
return;
}
//var newScope = new Scope(scope);
for (int i = 0; Arguments != null && i < Arguments.Count; i++)
{
//check the type of the parameters passed
var expressionType = Arguments[i].ExpressionType;
if (expressionType.Type == TypesEnumeration.Nil)
{
if (!scope.GetType(functionInfo.ParametersType[i].Type).Nilable)
errors.Add(SemanticError.InvalidNilAssignation(functionInfo.ParametersType[i].Type, this));
}
else if (expressionType.Type == TypesEnumeration.Void || scope.GetType(expressionType.Name).Name != functionInfo.ParametersType[i].Type)
errors.Add(SemanticError.WrongType(functionInfo.ParametersType[i].Type, expressionType.Name, this));
}
ExpressionType = functionInfo.ReturnType != "void" ? scope.GetType(functionInfo.ReturnType) : TypeInfo.GenerateVoidInfo();
ILName = scope.GetILRoutineName(FunctionId.Text);
}