[all-commits] [llvm/llvm-project] 0993b1: [clang] Clear ASTContext::TUDecl in 'cleanup' for ...

[Balázs Benics via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0993b11a12e1eacd63ae8c84e0a5cff9e3f09ef6
      https://github.com/llvm/llvm-project/commit/0993b11a12e1eacd63ae8c84e0a5cff9e3f09ef6
  Author: Balázs Benics <benicsbalazs at gmail.com>
  Date:   2026-04-17 (Fri, 17 Apr 2026)

  Changed paths:
    M clang/include/clang/AST/ASTContext.h
    M clang/lib/AST/ASTContext.cpp

  Log Message:
  -----------
  [clang] Clear ASTContext::TUDecl in 'cleanup' for easier debugging (#191697)

While the ASTContext has more things inside, I think we should at least
clear the TUDecl so that when traversing the (dangling) AST would
immediately step on the null-dereference instead of chasing dangling
pointers and crash later.

I was bitten by this in #191058.

This commit should be NFC - assuming that people didn't traverse already
dangling ASTs.



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