[Issue 6358] New: ICE when using an member template (not a template instance) in an expression.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=6358

           Summary: ICE when using an member template (not a template
                    instance) in an expression.
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Mac OS X
            Status: NEW
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: kennytm at gmail.com


--- Comment #0 from kennytm at gmail.com 2011-07-20 14:15:47 PDT ---
Test case:
-------------------------------------------
struct S6358 {
    double peek(T)(int x) {
        return 0;
    }
}
void bug6358a() {
    S6358 s;
    cast(void) (s.peek is &s);   // <-- (a)
}
void bug6358b() {
    S6358 s;
    cast(void) (s.peek + &s);    // <-- (b)
}
void bug6358c() {
    S6358 s;
    s.peek += 1;    // <-- (c)
}
-------------------------------------------

The ICE in (a) happens at:

Expression *BinExp::typeCombine(Scope *sc)
{
    Type *t1 = e1->type->toBasetype();
    Type *t2 = e2->type->toBasetype();   // <-- this line, e2->type == NULL

    if (op == TOKmin || op == TOKadd)
    {

The ICE in (b) happens at:

AggregateDeclaration *isAggregate(Type *t)
{
    t = t->toBasetype();    // <-- this line, t == NULL
    if (t->ty == Tclass)
    {


The ICE in (c) happens at:

int CallExp::isLvalue()
{
//    if (type->toBasetype()->ty == Tstruct)
//      return 1;
    Type *tb = e1->type->toBasetype();   // <-- the line, e1->type == NULL

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