[PATCH] D140838: [clang] fix crash on generic lambda with lambda in decltype

[Vincent Hong via Phabricator via cfe-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rGea4fd668c2cd: [clang] fix crash on generic lambda with lambda in decltype (authored by v1nh1shungry).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D140838/new/

https://reviews.llvm.org/D140838

Files:
  clang/lib/Sema/SemaTemplateInstantiate.cpp
  clang/test/SemaCXX/lambda-unevaluated.cpp


Index: clang/test/SemaCXX/lambda-unevaluated.cpp
===================================================================
--- clang/test/SemaCXX/lambda-unevaluated.cpp
+++ clang/test/SemaCXX/lambda-unevaluated.cpp
@@ -142,3 +142,7 @@
 using d = decltype(sizeof([] static { return 0; }));
 
 }
+
+namespace lambda_in_trailing_decltype {
+auto x = ([](auto) -> decltype([] {}()) {}(0), 2);
+}
Index: clang/lib/Sema/SemaTemplateInstantiate.cpp
===================================================================
--- clang/lib/Sema/SemaTemplateInstantiate.cpp
+++ clang/lib/Sema/SemaTemplateInstantiate.cpp
@@ -1231,7 +1231,7 @@
 
       // We recreated a local declaration, but not by instantiating it. There
       // may be pending dependent diagnostics to produce.
-      if (auto *DC = dyn_cast<DeclContext>(Old))
+      if (auto *DC = dyn_cast<DeclContext>(Old); DC && DC->isDependentContext())
         SemaRef.PerformDependentDiagnostics(DC, TemplateArgs);
     }
 


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