[clang-tools-extra] r293217 - Implement a new clang-tidy check that suggests users replace dynamic exception specifications with noexcept exception specifications.
Diana Picus via cfe-commits
cfe-commits at lists.llvm.org
Thu Jan 26 23:36:31 PST 2017
Hi Don, Hi Aaron,
I had to revert this in r293267 because all the clang-tools-extra
buildbots were still broken many hours after it was committed.
See for instance
http://lab.llvm.org:8011/builders/clang-cmake-aarch64-full/builds/1039
Eugene Zelenko also had some small fixes to
modernize-use-noexcept.rst, you might want to incorporate those as
well before recommitting (see r293234).
Regards,
Diana
On 27 January 2017 at 00:34, Aaron Ballman via cfe-commits
<cfe-commits at lists.llvm.org> wrote:
> Author: aaronballman
> Date: Thu Jan 26 16:34:24 2017
> New Revision: 293217
>
> URL: http://llvm.org/viewvc/llvm-project?rev=293217&view=rev
> Log:
> Implement a new clang-tidy check that suggests users replace dynamic exception specifications with noexcept exception specifications.
>
> Patch by Don Hinton.
>
> Added:
> clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.cpp
> clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.h
> clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-use-noexcept.rst
> clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-macro.cpp
> clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-opt.cpp
> clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept.cpp
> Modified:
> clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt
> clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp
> clang-tools-extra/trunk/docs/ReleaseNotes.rst
> clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst
>
> Modified: clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt?rev=293217&r1=293216&r2=293217&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt (original)
> +++ clang-tools-extra/trunk/clang-tidy/modernize/CMakeLists.txt Thu Jan 26 16:34:24 2017
> @@ -20,6 +20,7 @@ add_clang_library(clangTidyModernizeModu
> UseEmplaceCheck.cpp
> UseEqualsDefaultCheck.cpp
> UseEqualsDeleteCheck.cpp
> + UseNoexceptCheck.cpp
> UseNullptrCheck.cpp
> UseOverrideCheck.cpp
> UseTransparentFunctorsCheck.cpp
>
> Modified: clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp?rev=293217&r1=293216&r2=293217&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp (original)
> +++ clang-tools-extra/trunk/clang-tidy/modernize/ModernizeTidyModule.cpp Thu Jan 26 16:34:24 2017
> @@ -26,6 +26,7 @@
> #include "UseEmplaceCheck.h"
> #include "UseEqualsDefaultCheck.h"
> #include "UseEqualsDeleteCheck.h"
> +#include "UseNoexceptCheck.h"
> #include "UseNullptrCheck.h"
> #include "UseOverrideCheck.h"
> #include "UseTransparentFunctorsCheck.h"
> @@ -63,6 +64,7 @@ public:
> CheckFactories.registerCheck<UseEqualsDefaultCheck>("modernize-use-equals-default");
> CheckFactories.registerCheck<UseEqualsDeleteCheck>(
> "modernize-use-equals-delete");
> + CheckFactories.registerCheck<UseNoexceptCheck>("modernize-use-noexcept");
> CheckFactories.registerCheck<UseNullptrCheck>("modernize-use-nullptr");
> CheckFactories.registerCheck<UseOverrideCheck>("modernize-use-override");
> CheckFactories.registerCheck<UseTransparentFunctorsCheck>(
>
> Added: clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.cpp?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.cpp (added)
> +++ clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.cpp Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,114 @@
> +//===--- UseNoexceptCheck.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 "UseNoexceptCheck.h"
> +#include "clang/AST/ASTContext.h"
> +#include "clang/Lex/Lexer.h"
> +
> +using namespace clang::ast_matchers;
> +
> +namespace clang {
> +namespace tidy {
> +namespace modernize {
> +
> +UseNoexceptCheck::UseNoexceptCheck(StringRef Name, ClangTidyContext *Context)
> + : ClangTidyCheck(Name, Context),
> + NoexceptMacro(Options.get("ReplacementString", "")),
> + UseNoexceptFalse(Options.get("UseNoexceptFalse", true)) {}
> +
> +void UseNoexceptCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
> + Options.store(Opts, "ReplacementString", NoexceptMacro);
> + Options.store(Opts, "UseNoexceptFalse", UseNoexceptFalse);
> +}
> +
> +void UseNoexceptCheck::registerMatchers(MatchFinder *Finder) {
> + if (!getLangOpts().CPlusPlus11)
> + return;
> +
> + Finder->addMatcher(
> + functionDecl(
> + cxxMethodDecl(
> + hasTypeLoc(loc(functionProtoType(hasDynamicExceptionSpec()))),
> + anyOf(hasOverloadedOperatorName("delete[]"),
> + hasOverloadedOperatorName("delete"), cxxDestructorDecl()))
> + .bind("del-dtor"))
> + .bind("funcDecl"),
> + this);
> +
> + Finder->addMatcher(
> + functionDecl(
> + hasTypeLoc(loc(functionProtoType(hasDynamicExceptionSpec()))),
> + unless(anyOf(hasOverloadedOperatorName("delete[]"),
> + hasOverloadedOperatorName("delete"),
> + cxxDestructorDecl())))
> + .bind("funcDecl"),
> + this);
> +
> + Finder->addMatcher(
> + parmVarDecl(anyOf(hasType(pointerType(pointee(parenType(innerType(
> + functionProtoType(hasDynamicExceptionSpec())))))),
> + hasType(memberPointerType(pointee(parenType(innerType(
> + functionProtoType(hasDynamicExceptionSpec()))))))))
> + .bind("parmVarDecl"),
> + this);
> +}
> +
> +void UseNoexceptCheck::check(const MatchFinder::MatchResult &Result) {
> + const FunctionProtoType *FnTy = nullptr;
> + bool DtorOrOperatorDel = false;
> + SourceRange Range;
> +
> + if (const auto *FuncDecl = Result.Nodes.getNodeAs<FunctionDecl>("funcDecl")) {
> + DtorOrOperatorDel = Result.Nodes.getNodeAs<FunctionDecl>("del-dtor");
> + FnTy = FuncDecl->getType()->getAs<FunctionProtoType>();
> + if (const auto *TSI = FuncDecl->getTypeSourceInfo())
> + Range =
> + TSI->getTypeLoc().castAs<FunctionTypeLoc>().getExceptionSpecRange();
> + } else if (const auto *ParmDecl =
> + Result.Nodes.getNodeAs<ParmVarDecl>("parmVarDecl")) {
> + FnTy = ParmDecl->getType()
> + ->getAs<Type>()
> + ->getPointeeType()
> + ->getAs<FunctionProtoType>();
> +
> + if (const auto *TSI = ParmDecl->getTypeSourceInfo())
> + Range = TSI->getTypeLoc()
> + .getNextTypeLoc()
> + .IgnoreParens()
> + .castAs<FunctionProtoTypeLoc>()
> + .getExceptionSpecRange();
> + }
> + CharSourceRange CRange = Lexer::makeFileCharRange(
> + CharSourceRange::getTokenRange(Range), *Result.SourceManager,
> + Result.Context->getLangOpts());
> +
> + assert(FnTy && "FunctionProtoType is null.");
> + bool IsNoThrow = FnTy->isNothrow(*Result.Context);
> + StringRef ReplacementStr =
> + IsNoThrow
> + ? NoexceptMacro.empty() ? "noexcept" : NoexceptMacro
> + : NoexceptMacro.empty()
> + ? (DtorOrOperatorDel || UseNoexceptFalse) ? "noexcept(false)"
> + : ""
> + : "";
> +
> + FixItHint FixIt;
> + if ((IsNoThrow || NoexceptMacro.empty()) && CRange.isValid())
> + FixIt = FixItHint::CreateReplacement(CRange, ReplacementStr);
> +
> + diag(Range.getBegin(), "dynamic exception specification '%0' is deprecated; "
> + "consider %select{using '%2'|removing it}1 instead")
> + << Lexer::getSourceText(CRange, *Result.SourceManager,
> + Result.Context->getLangOpts())
> + << ReplacementStr.empty() << ReplacementStr << FixIt;
> +}
> +
> +} // namespace modernize
> +} // namespace tidy
> +} // namespace clang
>
> Added: clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.h
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.h?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.h (added)
> +++ clang-tools-extra/trunk/clang-tidy/modernize/UseNoexceptCheck.h Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,49 @@
> +//===--- UseNoexceptCheck.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_MODERNIZE_USE_NOEXCEPT_H
> +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_NOEXCEPT_H
> +
> +#include "../ClangTidy.h"
> +
> +namespace clang {
> +namespace tidy {
> +namespace modernize {
> +
> +/// \brief Replace dynamic exception specifications, with
> +/// `noexcept` (or user-defined macro) or `noexcept(false)`.
> +/// \code
> +/// void foo() throw();
> +/// void bar() throw(int);
> +/// \endcode
> +/// Is converted to:
> +/// \code
> +/// void foo() ;
> +// void bar() noexcept(false);
> +/// \endcode
> +///
> +/// For the user-facing documentation see:
> +/// http://clang.llvm.org/extra/clang-tidy/checks/modernize-use-noexcept.html
> +class UseNoexceptCheck : public ClangTidyCheck {
> +public:
> + UseNoexceptCheck(StringRef Name, ClangTidyContext *Context);
> + void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
> + void registerMatchers(ast_matchers::MatchFinder *Finder) override;
> + void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
> +
> +private:
> + const std::string NoexceptMacro;
> + bool UseNoexceptFalse;
> +};
> +
> +} // namespace modernize
> +} // namespace tidy
> +} // namespace clang
> +
> +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USE_NOEXCEPT_H
>
> Modified: clang-tools-extra/trunk/docs/ReleaseNotes.rst
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/ReleaseNotes.rst?rev=293217&r1=293216&r2=293217&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/docs/ReleaseNotes.rst (original)
> +++ clang-tools-extra/trunk/docs/ReleaseNotes.rst Thu Jan 26 16:34:24 2017
> @@ -57,7 +57,10 @@ The improvements are...
> Improvements to clang-tidy
> --------------------------
>
> -The improvements are...
> + - New `modernize-use-noexcept
> + <http://clang.llvm.org/extra/clang-tidy/checks/modernize-use-noexcept.html>`_ check
> +
> + Replaces dynamic exception specifications with ``noexcept`` or a user defined macro.
>
> Improvements to include-fixer
> -----------------------------
>
> 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=293217&r1=293216&r2=293217&view=diff
> ==============================================================================
> --- clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst (original)
> +++ clang-tools-extra/trunk/docs/clang-tidy/checks/list.rst Thu Jan 26 16:34:24 2017
> @@ -116,6 +116,7 @@ Clang-Tidy Checks
> modernize-use-emplace
> modernize-use-equals-default
> modernize-use-equals-delete
> + modernize-use-noexcept
> modernize-use-nullptr
> modernize-use-override
> modernize-use-transparent-functors
>
> Added: clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-use-noexcept.rst
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-use-noexcept.rst?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-use-noexcept.rst (added)
> +++ clang-tools-extra/trunk/docs/clang-tidy/checks/modernize-use-noexcept.rst Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,90 @@
> +.. title:: clang-tidy - modernize-use-noexcept
> +
> +modernize-use-noexcept
> +======================
> +
> +This check replaces deprecated dynamic exception specifications with
> +the appropriate noexcept specification (introduced in C++11). By
> +default this check will replace ``throw()`` with ``noexcept``,
> +and ``throw(<exception>[,...])`` or ``throw(...)`` with
> +``noexcept(false)``.
> +
> +Example
> +-------
> +
> +.. code-block:: c++
> +
> + void foo() throw();
> + void bar() throw(int) {}
> +
> +transforms to:
> +
> +.. code-block:: c++
> +
> + void foo() noexcept;
> + void bar() noexcept(false) {}
> +
> +Options
> +-------
> +
> +.. option:: ReplacementString
> +
> +Users can use :option:`ReplacementString` to specify a macro to use
> +instead of ``noexcept``. This is useful when maintaining source code
> +that uses custom exception specification marking other than
> +``noexcept``. Fixit hints will only be generated for non-throwing
> +specifications.
> +
> +Example
> +^^^^^^^
> +
> +.. code-block:: c++
> +
> + void bar() throw(int);
> + void foo() throw();
> +
> +transforms to:
> +
> +.. code-block:: c++
> +
> + void bar() throw(int); // No Fixit generated.
> + void foo() NOEXCEPT;
> +
> +if the :option:`ReplacementString` option is set to `NOEXCEPT`.
> +
> +.. option:: UseNoexceptFalse
> +
> +Enabled by default, disabling will generate Fixit hints that remove
> +throwing dynamic exception specs, e.g., ``throw(<something>)``,
> +completely without providing a replacement text, except for
> +destructors and delete operators that are ``noexcept(true)`` by
> +default.
> +
> +Example
> +^^^^^^^
> +
> +.. code-block:: c++
> +
> + void foo() throw(int) {}
> +
> + struct bar {
> + void foobar() throw(int);
> + void operator delete(void *ptr) throw(int);
> + void operator delete[](void *ptr) throw(int);
> + ~bar() throw(int);
> + }
> +
> +transforms to:
> +
> +.. code-block:: c++
> +
> + void foo() {}
> +
> + struct bar {
> + void foobar();
> + void operator delete(void *ptr) noexcept(false);
> + void operator delete[](void *ptr) noexcept(false);
> + ~bar() noexcept(false);
> + }
> +
> +if the :option:`UseNoexceptFalse` option is set to `0`.
>
> Added: clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-macro.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-macro.cpp?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-macro.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-macro.cpp Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,36 @@
> +// RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
> +// RUN: -config="{CheckOptions: [{key: modernize-use-noexcept.ReplacementString, value: 'NOEXCEPT'}]}" \
> +// RUN: -- -std=c++11
> +
> +// Example definition of NOEXCEPT -- simplified test to see if noexcept is supported.
> +#if (__has_feature(cxx_noexcept))
> +#define NOEXCEPT noexcept
> +#else
> +#define NOEXCEPT throw()
> +#endif
> +
> +void bar() throw() {}
> +// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'NOEXCEPT' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void bar() NOEXCEPT {}
> +
> +// Should not trigger a FixItHint, since macros only support noexcept, and this
> +// case throws.
> +class A {};
> +class B {};
> +void foobar() throw(A, B);
> +// CHECK-MESSAGES: :[[@LINE-1]]:15: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +
> +// Should not trigger a replacement.
> +void foo() noexcept(true);
> +
> +struct Z {
> + void operator delete(void *ptr) throw();
> + void operator delete[](void *ptr) throw(int);
> + ~Z() throw(int) {}
> +};
> +// CHECK-MESSAGES: :[[@LINE-4]]:35: warning: dynamic exception specification 'throw()' is deprecated; consider using 'NOEXCEPT' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:37: warning: dynamic exception specification 'throw(int)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:8: warning: dynamic exception specification 'throw(int)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void operator delete(void *ptr) NOEXCEPT;
> +// CHECK-FIXES: void operator delete[](void *ptr) throw(int);
> +// CHECK-FIXES: ~Z() throw(int) {}
>
> Added: clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-opt.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-opt.cpp?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-opt.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept-opt.cpp Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,88 @@
> +// RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
> +// RUN: -config="{CheckOptions: [{key: modernize-use-noexcept.UseNoexceptFalse, value: 0}]}" \
> +// RUN: -- -std=c++11
> +
> +class A {};
> +class B {};
> +
> +void foo() throw();
> +// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foo() noexcept;
> +
> +void bar() throw(...);
> +// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: dynamic exception specification 'throw(...)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void bar() ;
> +
> +void k() throw(int(int));
> +// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: dynamic exception specification 'throw(int(int))' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void k() ;
> +
> +void foobar() throw(A, B)
> +{}
> +// CHECK-MESSAGES: :[[@LINE-2]]:15: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foobar()
> +
> +void baz(int = (throw A(), 0)) throw(A, B) {}
> +// CHECK-MESSAGES: :[[@LINE-1]]:32: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void baz(int = (throw A(), 0)) {}
> +
> +void g(void (*fp)(void) throw());
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void g(void (*fp)(void) noexcept);
> +
> +void f(void (*fp)(void) throw(int)) throw(char);
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'throw(int)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: dynamic exception specification 'throw(char)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void f(void (*fp)(void) ) ;
> +
> +#define THROW throw
> +void h(void (*fp)(void) THROW(int)) THROW(char);
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'THROW(int)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: dynamic exception specification 'THROW(char)' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void h(void (*fp)(void) ) ;
> +
> +void j() throw(int(int) throw(void(void) throw(int)));
> +// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: dynamic exception specification 'throw(int(int) throw(void(void) throw(int)))' is deprecated; consider removing it instead [modernize-use-noexcept]
> +// CHECK-FIXES: void j() ;
> +
> +class Y {
> + Y() throw() = default;
> +};
> +// CHECK-MESSAGES: :[[@LINE-2]]:7: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: Y() noexcept = default;
> +
> +struct Z {
> + void operator delete(void *ptr) throw();
> + void operator delete[](void *ptr) throw(int);
> + ~Z() throw(int) {}
> +};
> +// CHECK-MESSAGES: :[[@LINE-4]]:35: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:37: warning: dynamic exception specification 'throw(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:8: warning: dynamic exception specification 'throw(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void operator delete(void *ptr) noexcept;
> +// CHECK-FIXES: void operator delete[](void *ptr) noexcept(false);
> +// CHECK-FIXES: ~Z() noexcept(false) {}
> +
> +struct S {
> + void f() throw();
> +};
> +void f(void (S::*)() throw());
> +// CHECK-MESSAGES: :[[@LINE-3]]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:22: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void f() noexcept;
> +// CHECK-FIXES: void f(void (S::*)() noexcept);
> +
> +typedef void (*fp)(void (*fp2)(int) throw());
> +// CHECK-MESSAGES: :[[@LINE-1]]:37: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: typedef void (*fp)(void (*fp2)(int) noexcept);
> +
> +// Should not trigger a replacement.
> +void titi() noexcept {}
> +void toto() noexcept(true) {}
> +
> +// Should not trigger a replacement.
> +void bad()
> +#if !__has_feature(cxx_noexcept)
> + throw()
> +#endif
> + ;
>
> Added: clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept.cpp
> URL: http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept.cpp?rev=293217&view=auto
> ==============================================================================
> --- clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept.cpp (added)
> +++ clang-tools-extra/trunk/test/clang-tidy/modernize-use-noexcept.cpp Thu Jan 26 16:34:24 2017
> @@ -0,0 +1,104 @@
> +// RUN: %check_clang_tidy %s modernize-use-noexcept %t -- \
> +// RUN: -- -std=c++11
> +
> +class A {};
> +class B {};
> +
> +void foo() throw();
> +// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foo() noexcept;
> +
> +template <typename T>
> +void foo() throw();
> +void footest() { foo<int>(); foo<double>(); }
> +// CHECK-MESSAGES: :[[@LINE-2]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foo() noexcept;
> +
> +void bar() throw(...);
> +// CHECK-MESSAGES: :[[@LINE-1]]:12: warning: dynamic exception specification 'throw(...)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void bar() noexcept(false);
> +
> +void k() throw(int(int));
> +// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: dynamic exception specification 'throw(int(int))' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void k() noexcept(false);
> +
> +void foobar() throw(A, B)
> +{}
> +// CHECK-MESSAGES: :[[@LINE-2]]:15: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foobar() noexcept(false)
> +
> +void baz(int = (throw A(), 0)) throw(A, B) {}
> +// CHECK-MESSAGES: :[[@LINE-1]]:32: warning: dynamic exception specification 'throw(A, B)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void baz(int = (throw A(), 0)) noexcept(false) {}
> +
> +void g(void (*fp)(void) throw());
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void g(void (*fp)(void) noexcept);
> +
> +void f(void (*fp)(void) throw(int)) throw(char);
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'throw(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: dynamic exception specification 'throw(char)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void f(void (*fp)(void) noexcept(false)) noexcept(false);
> +
> +#define THROW throw
> +void h(void (*fp)(void) THROW(int)) THROW(char);
> +// CHECK-MESSAGES: :[[@LINE-1]]:25: warning: dynamic exception specification 'THROW(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:37: warning: dynamic exception specification 'THROW(char)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void h(void (*fp)(void) noexcept(false)) noexcept(false);
> +
> +void j() throw(int(int) throw(void(void) throw(int)));
> +// CHECK-MESSAGES: :[[@LINE-1]]:10: warning: dynamic exception specification 'throw(int(int) throw(void(void) throw(int)))' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void j() noexcept(false);
> +
> +class Y {
> + Y() throw() = default;
> +};
> +// CHECK-MESSAGES: :[[@LINE-2]]:7: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: Y() noexcept = default;
> +
> +struct Z {
> + void operator delete(void *ptr) throw();
> + void operator delete[](void *ptr) throw(int);
> + ~Z() throw(int) {}
> +};
> +// CHECK-MESSAGES: :[[@LINE-4]]:35: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:37: warning: dynamic exception specification 'throw(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-4]]:8: warning: dynamic exception specification 'throw(int)' is deprecated; consider using 'noexcept(false)' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void operator delete(void *ptr) noexcept;
> +// CHECK-FIXES: void operator delete[](void *ptr) noexcept(false);
> +// CHECK-FIXES: ~Z() noexcept(false) {}
> +
> +struct S {
> + void f() throw();
> +};
> +void f(void (S::*)() throw());
> +// CHECK-MESSAGES: :[[@LINE-3]]:12: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:22: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void f() noexcept;
> +// CHECK-FIXES: void f(void (S::*)() noexcept);
> +
> +template <typename T>
> +struct ST {
> + void foo() throw();
> +};
> +template <typename T>
> +void ft(void (ST<T>::*)() throw());
> +// CHECK-MESSAGES: :[[@LINE-4]]:14: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-MESSAGES: :[[@LINE-2]]:27: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: void foo() noexcept;
> +// CHECK-FIXES: void ft(void (ST<T>::*)() noexcept);
> +
> +typedef void (*fp)(void (*fp2)(int) throw());
> +// CHECK-MESSAGES: :[[@LINE-1]]:37: warning: dynamic exception specification 'throw()' is deprecated; consider using 'noexcept' instead [modernize-use-noexcept]
> +// CHECK-FIXES: typedef void (*fp)(void (*fp2)(int) noexcept);
> +
> +// Should not trigger a replacement.
> +void titi() noexcept {}
> +void toto() noexcept(true) {}
> +
> +// Should not trigger a replacement.
> +void bad()
> +#if !__has_feature(cxx_noexcept)
> + throw()
> +#endif
> + ;
>
>
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