[C++11] Simplify a callback to use a lambda.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@202897 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
index 4ab7f00e5aa82d69d8b4b0ceceaa55dbb8a287d3..e07eb5295de21318551a3edf9a685a28bb69181a 100644 (file)
--- a/lib/Frontend/CompilerInstance.cpp
+++ b/lib/Frontend/CompilerInstance.cpp
@@ -763,21 +763,6 @@ static InputKind getSourceInputKindFromOptions(const LangOptions &LangOpts) {
   return LangOpts.CPlusPlus? IK_CXX : IK_C;
 }
 
-namespace {
-  struct CompileModuleMapData {
-    CompilerInstance &Instance;
-    GenerateModuleAction &CreateModuleAction;
-  };
-}
-
-/// \brief Helper function that executes the module-generating action under
-/// a crash recovery context.
-static void doCompileMapModule(void *UserData) {
-  CompileModuleMapData &Data
-    = *reinterpret_cast<CompileModuleMapData *>(UserData);
-  Data.Instance.ExecuteAction(Data.CreateModuleAction);
-}
-
 /// \brief Compile a module file for the given module, using the options 
 /// provided by the importing compiler instance.
 static void compileModule(CompilerInstance &ImportingInstance,
@@ -908,10 +893,9 @@ static void compileModule(CompilerInstance &ImportingInstance,
   // thread so that we get a stack large enough.
   const unsigned ThreadStackSize = 8 << 20;
   llvm::CrashRecoveryContext CRC;
-  CompileModuleMapData Data = { Instance, CreateModuleAction };
-  CRC.RunSafelyOnThread(&doCompileMapModule, &Data, ThreadStackSize);
+  CRC.RunSafelyOnThread([&]() { Instance.ExecuteAction(CreateModuleAction); },
+                        ThreadStackSize);
 
-  
   // Delete the temporary module map file.
   // FIXME: Even though we're executing under crash protection, it would still
   // be nice to do this with RemoveFileOnSignal when we can. However, that