private static UnifiedExpression CreateAttrasgn(XElement node)
{
Contract.Requires(node != null);
Contract.Requires(node.Name() == "attrasgn");
var left = CreateExpresion(node.FirstElement());
var name = node.NthElement(1);
var args = CreateArglist(node.LastElement());
var right = args[args.Count - 1].Value;
args.RemoveAt(args.Count - 1);
right.RemoveSelf();
UnifiedExpression expression;
if (name.Value == "[]=")
{
expression = UnifiedIndexer.Create(left, args);
}
else
{
var propName = name.Value;
propName = propName.Substring(0, propName.Length - 1);
expression = UnifiedProperty.Create(
".", left, UnifiedVariableIdentifier.Create(propName));
}
return(UnifiedBinaryExpression.Create(
expression,
UnifiedBinaryOperator.Create(
"=", UnifiedBinaryOperatorKind.Assign),
right));
}
public UnifiedElement VisitIndexerExpression(
IndexerExpression indexer, object data)
{
var target = indexer.Target.TryAcceptForExpression(this);
var args = indexer.Arguments.AcceptVisitorAsArgs(this, data);
return(UnifiedIndexer.Create(target, args));
}
private static UnifiedExpression CreateOpAsgn1(XElement node)
{
Contract.Requires(node != null);
Contract.Requires(node.Name() == "op_asgn1");
var expression = UnifiedIndexer.Create(
CreateExpresion(node.FirstElement()),
CreateArglist(node.NthElement(1)));
return(UnifiedBinaryExpression.Create(
expression,
Sign2BinaryOperator[node.NthElement(2).Value + "="].DeepCopy
(),
CreateExpresion(node.LastElement())));
}
public override bool Visit(UnifiedIndexer element, VisitorArgument arg)
{
element.Target.TryAccept(this, arg);
element.Arguments.TryAccept(this, arg.Set(Bracket));
return false;
}
public static UnifiedExpression CreatePostfixExpression(XElement node)
{
Contract.Requires(node != null);
Contract.Requires(node.Name() == "postfix_expression");
/*
* postfix_expression
* : primary_expression
* ( '[' expression ']'
| '(' ')'
| '(' argument_expression_list ')'
| '.' IDENTIFIER
| '->' IDENTIFIER
| '++'
| '--'
| )*
*/
var result =
CreatePrimaryExpression(node.Element("primary_expression"));
var elements = node.Elements().Skip(1); //先頭以外のすべての要素を取得
var length = elements.Count();
for (var i = 0; i < length; i++)
{
switch (elements.ElementAt(i++).Value)
{
case "[":
result = UnifiedIndexer.Create(
result,
UnifiedSet <UnifiedArgument> .Create(
UnifiedArgument.Create(
CreateExpression(
elements.ElementAt(i++)).
ElementAt(0))));
i++; // ']'読み飛ばし
break;
case "(":
if (elements.ElementAt(i).Name == "argument_expression_list")
{
result = UnifiedCall.Create(
result,
CreateArgumentExpressionList(
elements.ElementAt(i++)));
}
else
{
result = UnifiedCall.Create(
result, UnifiedSet <UnifiedArgument> .Create());
}
i++; // ')'読み飛ばし
break;
case ".":
result = UnifiedProperty.Create(
".", result,
UnifiedIdentifier.CreateVariable(
elements.ElementAt(i++).Value));
break;
case "->":
result = UnifiedProperty.Create(
"->", result,
UnifiedIdentifier.CreateVariable(
elements.ElementAt(i++).Value));
// TODO ポインタ型に展開してから処理するのか？
break;
case "++":
result = UnifiedUnaryExpression.Create(
result,
UnifiedUnaryOperator.Create(
"++",
UnifiedUnaryOperatorKind.PostIncrementAssign));
break;
case "--":
result = UnifiedUnaryExpression.Create(
result,
UnifiedUnaryOperator.Create(
"--",
UnifiedUnaryOperatorKind.PostDecrementAssign));
break;
default:
throw new InvalidOperationException();
}
}
return(result);
}
private static UnifiedExpression CreateMathFunctionStylePhrase(MathFunctionStylePhrase phrase)
{
return(UnifiedIndexer.Create(CreatePhrase(phrase.ParameterPhrase)));
}
public override bool Visit(UnifiedIndexer element, VisitorArgument arg)
{
element.Target.TryAccept(this, arg);
element.Arguments.TryAccept(this, arg.Set(Bracket));
return(false);
}