Clang parser crashes on invalid input with typo suggestions on assertion "queried property of class with no definition"


Bugzilla Link	PR39311
Status	CONFIRMED
Importance	P enhancement
Reported by	Orivej Desh (orivej@gmx.fr)
Reported on	2018-10-15 15:23:16 -0700
Last modified on	2021-01-29 23:17:53 -0800
Version	trunk
Hardware	PC Linux
CC	llvm-bugs@lists.llvm.org
Fixed by commit(s)
Attachments
Blocks
Blocked by
See also	PR12777

This invalid input crashes "clang++ -c input.cpp":

     template <T> f() { class ClassA class : ClassB, ClassA

It is necessary for "ClassA" and "ClassB" names to be similar enough to trigger
the typo suggestion and the crash. This affects all versions of Clang, from
3.7 to trunk (r344434).

This bug is different from https://bugs.llvm.org/show_bug.cgi?id=12777 which is
no longer reproducible.

Quuxplusone / LLVMBugzillaTest

Clang parser crashes on invalid input with typo suggestions on assertion "queried property of class with no definition" #38284