[clang-tools-extra] r249399 - Add a new module for the C++ Core Guidelines, and the first checker for those guidelines: cppcoreguidelines-pro-type-reinterpret-cast.
Aaron Ballman via cfe-commits
cfe-commits at lists.llvm.org
Tue Oct 6 06:31:01 PDT 2015
Author: aaronballman
Date: Tue Oct 6 08:31:00 2015
New Revision: 249399
URL: http://llvm.org/viewvc/llvm-project?rev=249399&view=rev
Log:
Add a new module for the C++ Core Guidelines, and the first checker for those guidelines: cppcoreguidelines-pro-type-reinterpret-cast.
Patch by Matthias Gehre!
Added:
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CMakeLists.txt
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/Makefile
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.cpp
clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.h
clang-tools-extra/trunk/docs/clang-tidy/checks/cppcoreguidelines-pro-type-reinterpret-cast.rst
clang-tools-extra/trunk/test/clang-tidy/cppcoreguidelines-pro-type-reinterpret-cast.cpp
Modified:
clang-tools-extra/trunk/clang-tidy/CMakeLists.txt
clang-tools-extra/trunk/clang-tidy/Makefile
clang-tools-extra/trunk/clang-tidy/add_new_check.py
clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt
clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp
clang-tools-extra/trunk/clang-tidy/tool/Makefile
clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst
Modified: clang-tools-extra/trunk/clang-tidy/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/CMakeLists.txt?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/CMakeLists.txt (original)
+++ clang-tools-extra/trunk/clang-tidy/CMakeLists.txt Tue Oct 6 08:31:00 2015
@@ -28,6 +28,7 @@ add_clang_library(clangTidy
add_subdirectory(tool)
add_subdirectory(cert)
add_subdirectory(llvm)
+add_subdirectory(cppcoreguidelines)
add_subdirectory(google)
add_subdirectory(misc)
add_subdirectory(modernize)
Modified: clang-tools-extra/trunk/clang-tidy/Makefile
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/Makefile?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/Makefile (original)
+++ clang-tools-extra/trunk/clang-tidy/Makefile Tue Oct 6 08:31:00 2015
@@ -11,6 +11,6 @@ CLANG_LEVEL := ../../..
LIBRARYNAME := clangTidy
include $(CLANG_LEVEL)/../../Makefile.config
-DIRS = utils cert readability llvm google misc modernize tool
+DIRS = utils cert cppcoreguidelines readability llvm google misc modernize tool
include $(CLANG_LEVEL)/Makefile
Modified: clang-tools-extra/trunk/clang-tidy/add_new_check.py
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/add_new_check.py?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/add_new_check.py (original)
+++ clang-tools-extra/trunk/clang-tidy/add_new_check.py Tue Oct 6 08:31:00 2015
@@ -147,7 +147,8 @@ void %(check_name)s::check(const MatchFi
# Modifies the module to include the new check.
def adapt_module(module_path, module, check_name, check_name_camel):
- filename = os.path.join(module_path, module.capitalize() + 'TidyModule.cpp')
+ modulecpp = filter(lambda p: p.lower() == module.lower() + "tidymodule.cpp", os.listdir(module_path))[0]
+ filename = os.path.join(module_path, modulecpp)
with open(filename, 'r') as f:
lines = f.readlines()
Added: clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CMakeLists.txt?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CMakeLists.txt (added)
+++ clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CMakeLists.txt Tue Oct 6 08:31:00 2015
@@ -0,0 +1,15 @@
+set(LLVM_LINK_COMPONENTS support)
+
+add_clang_library(clangTidyCppCoreGuidelinesModule
+ CppCoreGuidelinesTidyModule.cpp
+ ProTypeReinterpretCastCheck.cpp
+
+ LINK_LIBS
+ clangAST
+ clangASTMatchers
+ clangBasic
+ clangLex
+ clangTidy
+ clangTidyUtils
+ clangTooling
+ )
Added: clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp (added)
+++ clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp Tue Oct 6 08:31:00 2015
@@ -0,0 +1,38 @@
+//===--- CppCoreGuidelinesModule.cpp - clang-tidy -------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../ClangTidy.h"
+#include "../ClangTidyModule.h"
+#include "../ClangTidyModuleRegistry.h"
+#include "ProTypeReinterpretCastCheck.h"
+
+namespace clang {
+namespace tidy {
+namespace cppcoreguidelines {
+
+class CppCoreGuidelinesModule : public ClangTidyModule {
+public:
+ void addCheckFactories(ClangTidyCheckFactories &CheckFactories) override {
+ CheckFactories.registerCheck<ProTypeReinterpretCastCheck>(
+ "cppcoreguidelines-pro-type-reinterpret-cast");
+ }
+};
+
+// Register the LLVMTidyModule using this statically initialized variable.
+static ClangTidyModuleRegistry::Add<CppCoreGuidelinesModule>
+ X("cppcoreguidelines-module", "Adds checks for the C++ Core Guidelines.");
+
+} // namespace cppcoreguidelines
+
+// This anchor is used to force the linker to link in the generated object file
+// and thus register the CppCoreGuidelinesModule.
+volatile int CppCoreGuidelinesModuleAnchorSource = 0;
+
+} // namespace tidy
+} // namespace clang
Added: clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/Makefile
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/Makefile?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/Makefile (added)
+++ clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/Makefile Tue Oct 6 08:31:00 2015
@@ -0,0 +1,12 @@
+##===- clang-tidy/cppcoreguidelines/Makefile ----------------------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+CLANG_LEVEL := ../../../..
+LIBRARYNAME := clangTidyCppCoreGuidelinesModule
+
+include $(CLANG_LEVEL)/Makefile
Added: clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.cpp?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.cpp (added)
+++ clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.cpp Tue Oct 6 08:31:00 2015
@@ -0,0 +1,34 @@
+//===--- ProTypeReinterpretCastCheck.cpp - clang-tidy--------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "ProTypeReinterpretCastCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+
+void ProTypeReinterpretCastCheck::registerMatchers(MatchFinder *Finder) {
+ if (!getLangOpts().CPlusPlus)
+ return;
+
+ Finder->addMatcher(cxxReinterpretCastExpr().bind("cast"), this);
+}
+
+void ProTypeReinterpretCastCheck::check(const MatchFinder::MatchResult &Result) {
+ const auto *MatchedCast =
+ Result.Nodes.getNodeAs<CXXReinterpretCastExpr>("cast");
+ diag(MatchedCast->getOperatorLoc(),
+ "do not use reinterpret_cast");
+}
+
+} // namespace tidy
+} // namespace clang
Added: clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.h
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.h?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.h (added)
+++ clang-tools-extra/trunk/clang-tidy/cppcoreguidelines/ProTypeReinterpretCastCheck.h Tue Oct 6 08:31:00 2015
@@ -0,0 +1,33 @@
+//===--- ProTypeReinterpretCast.h - clang-tidy------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_PRO_TYPE_REINTERPRETCAST_CHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_PRO_TYPE_REINTERPRETCAST_CHECK_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+
+/// Flags all occurrences of reinterpret_cast
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/misc-no-reinterpret-cast.html
+class ProTypeReinterpretCastCheck : public ClangTidyCheck {
+public:
+ ProTypeReinterpretCastCheck(StringRef Name, ClangTidyContext *Context)
+ : ClangTidyCheck(Name, Context) {}
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_PRO_TYPE_REINTERPRETCAST_CHECK_H
Modified: clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt (original)
+++ clang-tools-extra/trunk/clang-tidy/tool/CMakeLists.txt Tue Oct 6 08:31:00 2015
@@ -11,6 +11,7 @@ target_link_libraries(clang-tidy
clangBasic
clangTidy
clangTidyCERTModule
+ clangTidyCppCoreGuidelinesModule
clangTidyGoogleModule
clangTidyLLVMModule
clangTidyMiscModule
Modified: clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp (original)
+++ clang-tools-extra/trunk/clang-tidy/tool/ClangTidyMain.cpp Tue Oct 6 08:31:00 2015
@@ -357,6 +357,11 @@ extern volatile int LLVMModuleAnchorSour
static int LLVM_ATTRIBUTE_UNUSED LLVMModuleAnchorDestination =
LLVMModuleAnchorSource;
+// This anchor is used to force the linker to link the CppCoreGuidelinesModule.
+extern volatile int CppCoreGuidelinesModuleAnchorSource;
+static int LLVM_ATTRIBUTE_UNUSED CppCoreGuidelinesModuleAnchorDestination =
+ CppCoreGuidelinesModuleAnchorSource;
+
// This anchor is used to force the linker to link the GoogleModule.
extern volatile int GoogleModuleAnchorSource;
static int LLVM_ATTRIBUTE_UNUSED GoogleModuleAnchorDestination =
Modified: clang-tools-extra/trunk/clang-tidy/tool/Makefile
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/tool/Makefile?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/clang-tidy/tool/Makefile (original)
+++ clang-tools-extra/trunk/clang-tidy/tool/Makefile Tue Oct 6 08:31:00 2015
@@ -19,6 +19,7 @@ LINK_COMPONENTS := $(TARGETS_TO_BUILD) a
USEDLIBS = clangTidy.a clangTidyLLVMModule.a clangTidyGoogleModule.a \
clangTidyMiscModule.a clangTidyModernizeModule.a clangTidyReadability.a \
clangTidyUtils.a clangTidyCERTModule.a clangStaticAnalyzerFrontend.a \
+ clangTidyCppCoreGuidelinesModule.a \
clangStaticAnalyzerCheckers.a clangStaticAnalyzerCore.a \
clangFormat.a clangASTMatchers.a clangTooling.a clangToolingCore.a \
clangFrontend.a clangSerialization.a clangDriver.a clangParse.a \
Added: clang-tools-extra/trunk/docs/clang-tidy/checks/cppcoreguidelines-pro-type-reinterpret-cast.rst
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/clang-tidy/checks/cppcoreguidelines-pro-type-reinterpret-cast.rst?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/docs/clang-tidy/checks/cppcoreguidelines-pro-type-reinterpret-cast.rst (added)
+++ clang-tools-extra/trunk/docs/clang-tidy/checks/cppcoreguidelines-pro-type-reinterpret-cast.rst Tue Oct 6 08:31:00 2015
@@ -0,0 +1,9 @@
+cppcoreguidelines-pro-type-reinterpret-cast
+===========================================
+
+This check flags all uses of reinterpret_cast in C++ code.
+
+Use of these casts can violate type safety and cause the program to access a variable that is actually of type X to be accessed as if it were of an unrelated type Z.
+
+This rule is part of the "Type safety" profile of the C++ Core Guidelines, see
+https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#-type1-dont-use-reinterpret_cast.
Modified: clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst?rev=249399&r1=249398&r2=249399&view=diff
==============================================================================
--- clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst (original)
+++ clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst Tue Oct 6 08:31:00 2015
@@ -3,6 +3,7 @@ List of clang-tidy Checks
.. toctree::
cert-variadic-function-def
+ cppcoreguidelines-pro-type-reinterpret-cast
google-build-explicit-make-pair
google-build-namespaces
google-build-using-namespace
Added: clang-tools-extra/trunk/test/clang-tidy/cppcoreguidelines-pro-type-reinterpret-cast.cpp
URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/cppcoreguidelines-pro-type-reinterpret-cast.cpp?rev=249399&view=auto
==============================================================================
--- clang-tools-extra/trunk/test/clang-tidy/cppcoreguidelines-pro-type-reinterpret-cast.cpp (added)
+++ clang-tools-extra/trunk/test/clang-tidy/cppcoreguidelines-pro-type-reinterpret-cast.cpp Tue Oct 6 08:31:00 2015
@@ -0,0 +1,6 @@
+// RUN: %python %S/check_clang_tidy.py %s cppcoreguidelines-pro-type-reinterpret-cast %t
+
+int i = 0;
+void* j;
+void f() { j = reinterpret_cast<void*>(i); }
+// CHECK-MESSAGES: :[[@LINE-1]]:16: warning: do not use reinterpret_cast [cppcoreguidelines-pro-type-reinterpret-cast]
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