http://bugzilla.gdcproject.org/show_bug.cgi?id=49
--- Comment #6 from Iain Buclaw <ibuc...@gdcproject.org> 2013-04-09 13:41:15
UTC ---
(In reply to comment #5)
> (In reply to comment #2)
> > (In reply to comment #0)
> > > test.d:
> > >
> > > template Tuple(Stuff ...) {
> > > alias Stuff Tuple;
> > > }
> > > struct S {
> > > int i;
> > > alias Tuple!i t;
> > > void a() {
> > > auto x = t;
> > > }
> > > void b() {
> > > auto x = t;
> > > }
> > > }
> >
> >
> > Tracked down to the following:
> >
> > void a() {
> > // OK: 'this' has decl context of 'a'
> > (int) x = tuple(this.i);
> > }
> >
> > void b() {
> > // WRONG: 'this' has decl context of 'a'
> > (int) x = tuple(this.i);
> > }
>
>
> Looks like TupleExp's are cached and re-used. This is why when the
> TupleExp::semantic ran in b() has a parent of 'a'
Fix - Not sure if there are any other cases where this could happen.
--- a/gcc/d/dfrontend/expression.c
+++ b/gcc/d/dfrontend/expression.c
@@ -5200,7 +5200,7 @@ TupleExp::TupleExp(Loc loc, TupleDeclaration *tup)
if (o->dyncast() == DYNCAST_EXPRESSION)
{
Expression *e = (Expression *)o;
- if (e->op == TOKdsymbol)
+ if (e->op == TOKdsymbol || e->op == TOKdotvar)
e = e->syntaxCopy();
exps->push(e);
}
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