public override bool Walk(Arg node)
{
node.Parent = _currentScope;
return base.Walk(node);
}
// arg: ( identifier ':' )? expression
private Arg ParseArg()
{
Arg ret;
int start = GetStart();
Expression value = ParseExpression();
if (value is NameExpression)
{
string name = ((NameExpression)value).Name;
int end = GetEnd();
if (MaybeEat(TokenKind.Colon))
{
value = ParseExpression();
ret = new Arg(name, value);
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
else if (MaybeEat(TokenKind.Arrow))
{
var param = new Parameter(name);
param.SetLoc(_globalParent, start, end);
ret = new Arg(ParseLambdaBody(start, param));
ret.SetLoc(_globalParent, start, GetEnd());
return ret;
}
}
ret = new Arg(value);
ret.SetLoc(_globalParent, value.IndexSpan);
return ret;
}
public CallExpression(Expression target, Arg[] args)
{
_target = target;
_args = args;
}