// or_test: and_test ('or' and_test)*
private Expression ParseOrTest() {
Expression ret = ParseAndTest();
while (MaybeEat(TokenKind.KeywordOr)) {
string proceeding = _tokenWhiteSpace;
var start = ret.StartIndex;
ret = new OrExpression(ret, ParseAndTest());
if (_verbatim) {
AddPreceedingWhiteSpace(ret, proceeding);
}
ret.SetLoc(start, GetEnd());
}
return ret;
}
public override bool Walk(OrExpression node)
{
node.Parent = _currentScope;
return(base.Walk(node));
}
public override void PostWalk(OrExpression node) { PostWalkWorker(node); }
public override bool Walk(OrExpression node) {
return UpdateLineInfo(node, true);
}
// OrExpression
public override bool Walk(OrExpression node) { return ShouldWalkWorker(node); }