mizvekov added a comment.
@kimgr One other general comment.
The way this function is implemented is quite error prone:
static const NamedDecl* TypeToDeclImpl(const Type* type, bool as_written) {
// Get past all the 'class' and 'struct' prefixes, and namespaces.
type = RemoveElaboration(type);
// Read past SubstTemplateTypeParmType (this can happen if a
// template function returns the tpl-arg type: e.g. for
// 'T MyFn<T>() {...}; MyFn<X>.a', the type of MyFn<X> will be a Subst.
type = RemoveSubstTemplateTypeParm(type);
CHECK_(!isa<ObjCObjectType>(type) && "IWYU doesn't support Objective-C");
Ie the beginning is being too explicit, testing for very specific sugar type
nodes kinds, in a very specific order, just to skip over them.
That makes it very fragile against clang changes.
You can instead just use `getAs` to step over them in a generic fashion.
I don't think this one gets broken by this MR, but I am very confident it will
get broken by another patch I have.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D112374/new/
https://reviews.llvm.org/D112374
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