[PATCH] D67584: [Support] Replace function with function_ref in writeFileAtomically. NFC

[Ilya Biryukov via Phabricator via cfe-commits]

ilya-biryukov created this revision.
ilya-biryukov added a reviewer: jkorous.
Herald added subscribers: llvm-commits, jfb, dexonsmith, hiraditya.
Herald added a project: LLVM.

The latter is slightly more efficient and communicates the intent of the
API: writeFileAtomically does not own or copy the callback, it merely
calls it at some point.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D67584

Files:
  llvm/include/llvm/Support/FileUtilities.h
  llvm/lib/Support/FileUtilities.cpp


Index: llvm/lib/Support/FileUtilities.cpp
===================================================================
--- llvm/lib/Support/FileUtilities.cpp
+++ llvm/lib/Support/FileUtilities.cpp
@@ -296,7 +296,7 @@
 
 llvm::Error llvm::writeFileAtomically(
     StringRef TempPathModel, StringRef FinalPath,
-    std::function<llvm::Error(llvm::raw_ostream &)> Writer) {
+    llvm::function_ref<llvm::Error(llvm::raw_ostream &)> Writer) {
   SmallString<128> GeneratedUniqPath;
   int TempFD;
   if (sys::fs::createUniqueFile(TempPathModel.str(), TempFD,
Index: llvm/include/llvm/Support/FileUtilities.h
===================================================================
--- llvm/include/llvm/Support/FileUtilities.h
+++ llvm/include/llvm/Support/FileUtilities.h
@@ -14,6 +14,7 @@
 #ifndef LLVM_SUPPORT_FILEUTILITIES_H
 #define LLVM_SUPPORT_FILEUTILITIES_H
 
+#include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/Errc.h"
 #include "llvm/Support/ErrorHandling.h"
@@ -109,7 +110,7 @@
 
   llvm::Error
   writeFileAtomically(StringRef TempPathModel, StringRef FinalPath,
-                      std::function<llvm::Error(llvm::raw_ostream &)> Writer);
+                      llvm::function_ref<llvm::Error(llvm::raw_ostream &)> Writer);
 } // End llvm namespace
 
 #endif


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