public override InoTypeEnum Visit(AssignAstNode node)
{
if (node.Symbol.Type == SALTypeEnum.number)
{
node.InoType = EvaluateInoAssignment(node);
}
return(InoTypeEnum.undefined);
}
public override SALTypeEnum Visit(AssignAstNode node)
{
SALTypeEnum expr = Visit(node.Expr);
if (expr != node.Symbol.Type)
{
Errors.Add(new Error(ErrorEnum.TypeMismatch, node.Token.Line, node.Symbol.Name));
}
return(node.Symbol.Type);
}
public override string Visit(AssignAstNode node)
{
if (!(AlreadyVisited.Any(x => x == node)))
{
AlreadyVisited.Add(node);
}
else
{
return("");
}
if (node.Symbol.Scope.Depth == 0 && IsLoop && node.Id is IdAstNode idnode)
{
if (idnode.Type != SALTypeEnum.undefined)
{
return("");
}
}
string AssignmentCode = "";
string expression = Visit(node.Expr);
string id = Visit(node.Id);
if (node.InoType != InoTypeEnum.undefined && !(DeclOrInit.Any(x => x == node.Symbol)))
{
id = node.InoType + " " + id;
DeclOrInit.Add(node.Symbol);
}
if (expression.Last() == ';')
{
AssignmentCode = id + " = " + expression;
}
else
{
AssignmentCode = id + " = " + expression + ";";
}
if (node.Symbol.Scope.Depth == 0 && IsGlobal)
{
GlobalVariables += AssignmentCode + "\n";
return("");
}
return(AssignmentCode);
}
private InoTypeEnum EvaluateInoAssignment(AssignAstNode node)
{
InoTypeEnum expressionType = Visit(node.Expr);
if (VariableTypes.ContainsKey(node.Symbol))
{
VariableTypes.TryGetValue(node.Symbol, out InoTypeEnum type);
if (type == InoTypeEnum.undefined)
{
VariableTypes[node.Symbol] = expressionType;
}
}
else
{
VariableTypes.Add(node.Symbol, expressionType);
}
return(expressionType);
}
