[PATCH] D86279: [clangd] Don't crash on `#pragma clang __debug parser_crash`

Aleksandr Platonov via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 20 05:54:01 PDT 2020


This revision was automatically updated to reflect the committed changes.
Closed by commit rG445739826567: [clangd] Don't crash on `#pragma clang __debug parser_crash` (authored by ArcsinX).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86279/new/

https://reviews.llvm.org/D86279

Files:
  clang-tools-extra/clangd/Compiler.cpp
  clang-tools-extra/clangd/unittests/CompilerTests.cpp


Index: clang-tools-extra/clangd/unittests/CompilerTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/CompilerTests.cpp
+++ clang-tools-extra/clangd/unittests/CompilerTests.cpp
@@ -51,6 +51,11 @@
               IsEmpty());
 }
 
+TEST(BuildCompilerInvocation, PragmaDebugCrash) {
+  TestTU TU = TestTU::withCode("#pragma clang __debug parser_crash");
+  TU.build(); // no-crash
+}
+
 } // namespace
 } // namespace clangd
 } // namespace clang
Index: clang-tools-extra/clangd/Compiler.cpp
===================================================================
--- clang-tools-extra/clangd/Compiler.cpp
+++ clang-tools-extra/clangd/Compiler.cpp
@@ -78,6 +78,8 @@
   CI->getPreprocessorOpts().PCHThroughHeader.clear();
   CI->getPreprocessorOpts().PCHWithHdrStop = false;
   CI->getPreprocessorOpts().PCHWithHdrStopCreate = false;
+  // Don't crash on `#pragma clang __debug parser_crash`
+  CI->getPreprocessorOpts().DisablePragmaDebugCrash = true;
 
   // Recovery expression currently only works for C++.
   if (CI->getLangOpts()->CPlusPlus) {


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