public AstPrinterNode Visit(SimpleVarDecl node)
{
var printer = new AstPrinterNode(node.ToString());
foreach (var ident in node.IdentList)
{
printer.AddChild(ident.Accept(this));
}
printer.AddChild(node.IdentsType.Accept(this));
return(printer);
}
public bool Visit(SimpleVarDecl node)
{
//TODO: get types from functions we got after separate code in type declaration
SymType identsType;
switch (node.IdentsType)
{
case ArrayTypeNode arrayTypeNode:
arrayTypeNode.Accept(this);
identsType = arrayTypeNode.SymType;
break;
case RecordTypeNode recordTypeNode:
recordTypeNode.Accept(this);
identsType = recordTypeNode.SymType;
break;
case PointerTypeNode pointerTypeNode:
identsType = _symStack.CheckTypeDeclared(node.IdentsType.ToString());
break;
default:
identsType = _symStack.CheckTypeDeclared(node.IdentsType.Token.Value);
break;
}
if (identsType == null)
{
throw new Exception(string.Format("({0}, {1}) semantic error: type '{2}' is not found",
node.IdentsType.Token.Line, node.IdentsType.Token.Column, node.IdentsType.ToString()));
}
foreach (var ident in node.IdentList)
{
CheckIdentifierDuplicate(ident.Token);
_symStack.AddVariable(node.IsLocal, ident.ToString(), identsType);
ident.SymType = identsType;
}
return(true);
}
