erichkeane added inline comments.
================
Comment at: clang/lib/Sema/SemaConcept.cpp:1065-1068
assert(TC &&
"TPL must have a template type parameter with a type constraint");
auto *Constraint =
+ cast<ConceptSpecializationExpr>(TC->getImmediatelyDeclaredConstraint());
----------------
aaron.ballman wrote:
> mlychkov wrote:
> > aaron.ballman wrote:
> > > If we're going to be touching this code, there's more suspect code here
> > > that needs to be cleaned up a bit. Directly above this is:
> > > ```
> > > const TypeConstraint *TC =
> > > cast<TemplateTypeParmDecl>(TPL->getParam(0))->getTypeConstraint();
> > > assert(TC &&
> > > "TPL must have a template type parameter with a type
> > > constraint");
> > > ```
> > > That assertion can be removed entirely -- if the `cast<>` fails, it
> > > doesn't return null, it asserts.
> > Actually, cast return nonnull value, but
> > TC = "cast_result"->getTypeConstraint();
> > and TC may become nullptr, I suppose.
> Good catch! I think we should add the assertion on `TC` being nonnull back.
> I'll take care of that.
Ooh, good catch! I definitely missed that when suggesting removing the assert.
@aaron.ballman can you re-add the assert on 1065?
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D108481/new/
https://reviews.llvm.org/D108481
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