[PATCH] D43766: [clang-tidy][modernize-make-unique] Checks c++14 flag before using std::make_unique

Tue, 27 Feb 2018 09:48:12 -0800 

ftingaud updated this revision to Diff 136094.
ftingaud added a comment.

Remove two useless namespaces


https://reviews.llvm.org/D43766

Files:
  clang-tidy/modernize/MakeSmartPtrCheck.cpp
  clang-tidy/modernize/MakeSmartPtrCheck.h
  clang-tidy/modernize/MakeUniqueCheck.cpp
  clang-tidy/modernize/MakeUniqueCheck.h
  test/clang-tidy/modernize-make-unique-cxx11.cpp
  test/clang-tidy/modernize-make-unique-cxx14.cpp
  test/clang-tidy/modernize-make-unique-header.cpp
  test/clang-tidy/modernize-make-unique-macros.cpp
  test/clang-tidy/modernize-make-unique.cpp


Index: test/clang-tidy/modernize-make-unique.cpp
===================================================================
--- test/clang-tidy/modernize-make-unique.cpp
+++ test/clang-tidy/modernize-make-unique.cpp
@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy %s modernize-make-unique %t -- -- -std=c++11 \
+// RUN: %check_clang_tidy %s modernize-make-unique %t -- -- -std=c++14 \
 // RUN:   -I%S/Inputs/modernize-smart-ptr
 
 #include "unique_ptr.h"
Index: test/clang-tidy/modernize-make-unique-macros.cpp
===================================================================
--- test/clang-tidy/modernize-make-unique-macros.cpp
+++ test/clang-tidy/modernize-make-unique-macros.cpp
@@ -1,6 +1,6 @@
 // RUN: %check_clang_tidy %s modernize-make-unique %t -- \
 // RUN:   -config="{CheckOptions: [{key: modernize-make-unique.IgnoreMacros, value: 0}]}" \
-// RUN:   -- -std=c++11  -I%S/Inputs/modernize-smart-ptr
+// RUN:   -- -std=c++14  -I%S/Inputs/modernize-smart-ptr
 
 #include "unique_ptr.h"
 
Index: test/clang-tidy/modernize-make-unique-header.cpp
===================================================================
--- test/clang-tidy/modernize-make-unique-header.cpp
+++ test/clang-tidy/modernize-make-unique-header.cpp
@@ -5,7 +5,7 @@
 // RUN:      {key: modernize-make-unique.MakeSmartPtrFunctionHeader, \
 // RUN:       value: 'make_unique_util.h'} \
 // RUN:     ]}" \
-// RUN:   -- -std=c++11 -I%S/Inputs/modernize-smart-ptr
+// RUN:   -- -std=c++14 -I%S/Inputs/modernize-smart-ptr
 
 #include "unique_ptr.h"
 // CHECK-FIXES: #include "make_unique_util.h"
Index: test/clang-tidy/modernize-make-unique-cxx14.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/modernize-make-unique-cxx14.cpp
@@ -0,0 +1,12 @@
+// RUN: %check_clang_tidy %s modernize-make-unique %t -- -- -std=c++14 \
+// RUN:   -I%S/Inputs/modernize-smart-ptr
+
+#include "unique_ptr.h"
+// CHECK-FIXES: #include <memory>
+
+int main() {
+  auto my_ptr = std::unique_ptr<int>(new int(1));
+  // CHECK-MESSAGES: :[[@LINE-1]]:17: warning: use std::make_unique instead
+  // CHECK-FIXES: auto my_ptr = std::make_unique<int>(1);
+  return 0;
+}
Index: test/clang-tidy/modernize-make-unique-cxx11.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/modernize-make-unique-cxx11.cpp
@@ -0,0 +1,11 @@
+// RUN: %check_clang_tidy %s modernize-make-unique %t -- -- -std=c++11 \
+// RUN:   -I%S/Inputs/modernize-smart-ptr
+
+#include "unique_ptr.h"
+// CHECK-FIXES-NOT: #include <memory>
+
+int main() {
+  auto my_ptr = std::unique_ptr<int>(new int(1));
+  // CHECK-FIXES-NOT: auto my_ptr = std::make_unique<int>(1);
+  return 0;
+}
Index: clang-tidy/modernize/MakeUniqueCheck.h
===================================================================
--- clang-tidy/modernize/MakeUniqueCheck.h
+++ clang-tidy/modernize/MakeUniqueCheck.h
@@ -31,6 +31,8 @@
 
 protected:
   SmartPtrTypeMatcher getSmartPointerTypeMatcher() const override;
+
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override;
 };
 
 } // namespace modernize
Index: clang-tidy/modernize/MakeUniqueCheck.cpp
===================================================================
--- clang-tidy/modernize/MakeUniqueCheck.cpp
+++ clang-tidy/modernize/MakeUniqueCheck.cpp
@@ -36,6 +36,10 @@
                                     equalsBoundNode(PointerType))))))))))))))));
 }
 
+bool MakeUniqueCheck::isLanguageVersionSupported(const LangOptions &LangOpts) const {
+   return LangOpts.CPlusPlus14;
+}
+
 } // namespace modernize
 } // namespace tidy
 } // namespace clang
Index: clang-tidy/modernize/MakeSmartPtrCheck.h
===================================================================
--- clang-tidy/modernize/MakeSmartPtrCheck.h
+++ clang-tidy/modernize/MakeSmartPtrCheck.h
@@ -40,6 +40,9 @@
   /// in this class.
   virtual SmartPtrTypeMatcher getSmartPointerTypeMatcher() const = 0;
 
+  /// Returns whether the C++ version is compatible with current check.
+  virtual bool isLanguageVersionSupported(const LangOptions &LangOpts) const;
+
   static const char PointerType[];
   static const char ConstructorCall[];
   static const char ResetCall[];
Index: clang-tidy/modernize/MakeSmartPtrCheck.cpp
===================================================================
--- clang-tidy/modernize/MakeSmartPtrCheck.cpp
+++ clang-tidy/modernize/MakeSmartPtrCheck.cpp
@@ -61,16 +61,21 @@
   Options.store(Opts, "IgnoreMacros", IgnoreMacros);
 }
 
+bool MakeSmartPtrCheck::isLanguageVersionSupported(const LangOptions & LangOpts) const
+{
+   return LangOpts.CPlusPlus11;
+}
+
 void MakeSmartPtrCheck::registerPPCallbacks(CompilerInstance &Compiler) {
-  if (getLangOpts().CPlusPlus11) {
+  if (isLanguageVersionSupported(getLangOpts())) {
     Inserter.reset(new utils::IncludeInserter(
         Compiler.getSourceManager(), Compiler.getLangOpts(), IncludeStyle));
     Compiler.getPreprocessor().addPPCallbacks(Inserter->CreatePPCallbacks());
   }
 }
 
 void MakeSmartPtrCheck::registerMatchers(ast_matchers::MatchFinder *Finder) {
-  if (!getLangOpts().CPlusPlus11)
+  if (!isLanguageVersionSupported(getLangOpts()))
     return;
 
   // Calling make_smart_ptr from within a member function of a type with a

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