public override bool Walk(SublistParameter node)
{
node.AddVariable(_binder._globalScope, _binder._bindRefs, _binder.DefineParameter(node.Name));
// we walk the node by hand to avoid walking the default values.
WalkTuple(node.Tuple);
return(false);
}
public override bool Walk(SublistParameter node)
{
#if NAME_BINDING
node.PythonVariable =
#endif
_binder.DefineParameter(node.Name);
node.Parent = _binder._currentScope;
// we walk the node by hand to avoid walking the default values.
WalkTuple(node.Tuple);
return(false);
}
// parameter ::=
// identifier | "(" sublist ")"
private Parameter ParseParameter(int position, HashSet<string> names, ParameterKind kind, bool isTyped = false) {
Name name;
Parameter parameter;
if (PeekToken().Kind == TokenKind.LeftParenthesis) {
// sublist
string parenWhiteSpace = _lookaheadWhiteSpace;
NextToken();
var parenStart = GetStart();
Expression ret = ParseSublist(names, true);
if (_langVersion.Is3x()) {
ReportSyntaxError(parenStart, GetEnd(), "sublist parameters are not supported in 3.x");
}
bool ateRightParen = Eat(TokenKind.RightParenthesis);
string closeParenWhiteSpace = _tokenWhiteSpace;
TupleExpression tret = ret as TupleExpression;
NameExpression nameRet;
if (tret != null) {
parameter = new SublistParameter(position, tret);
if (_verbatim) {
AddPreceedingWhiteSpace(tret, parenWhiteSpace);
AddSecondPreceedingWhiteSpace(tret, closeParenWhiteSpace);
if (!ateRightParen) {
AddErrorMissingCloseGrouping(parameter);
}
}
} else if ((nameRet = ret as NameExpression) != null) {
parameter = new Parameter(nameRet.Name, kind);
if (_verbatim) {
AddThirdPreceedingWhiteSpace(parameter, (string)_attributes[nameRet][NodeAttributes.PreceedingWhiteSpace]);
AddIsAltForm(parameter);
if (!ateRightParen) {
AddErrorMissingCloseGrouping(parameter);
}
}
} else {
Debug.Assert(ret is ErrorExpression);
ReportSyntaxError(_lookahead);
parameter = new ErrorParameter((ErrorExpression)ret);
AddIsAltForm(parameter);
}
if (parameter != null) {
parameter.SetLoc(ret.IndexSpan);
}
if (_verbatim) {
AddPreceedingWhiteSpace(parameter, parenWhiteSpace);
AddSecondPreceedingWhiteSpace(parameter, closeParenWhiteSpace);
if (!ateRightParen) {
AddErrorMissingCloseGrouping(parameter);
}
}
} else if ((name = TokenToName(PeekToken())).HasName) {
NextToken();
var paramStart = GetStart();
parameter = new Parameter(name.RealName, kind);
if (_verbatim) {
AddPreceedingWhiteSpace(parameter, _tokenWhiteSpace);
AddVerbatimName(name, parameter);
}
if (isTyped && MaybeEat(TokenKind.Colon)) {
if (_verbatim) {
AddThirdPreceedingWhiteSpace(parameter, _tokenWhiteSpace);
}
var start = GetStart();
parameter.Annotation = ParseExpression();
if (_langVersion.Is2x()) {
ReportSyntaxError(start, parameter.Annotation.EndIndex, "invalid syntax, parameter annotations require 3.x");
}
}
CompleteParameterName(parameter, name.RealName, names, paramStart);
} else {
ReportSyntaxError(_lookahead);
NextToken();
parameter = new ErrorParameter(_verbatim ? Error(_tokenWhiteSpace + _token.Token.VerbatimImage) : null);
}
return parameter;
}
public override bool Walk(SublistParameter node) {
node.AddVariable(_binder._globalScope, _binder._bindRefs, _binder.DefineParameter(node.Name));
// we walk the node by hand to avoid walking the default values.
WalkTuple(node.Tuple);
return false;
}
public override bool Walk(SublistParameter node) {
return true;
}
public override bool Walk(SublistParameter node)
{
return(true);
}
public override void PostWalk(SublistParameter node) { PostWalkWorker(node); }
// SublistParameter
public override bool Walk(SublistParameter node) { return ShouldWalkWorker(node); }