clang-tools
15.0.0git
llvm-project
clang-tools-extra
clang-tidy
modernize
UseTrailingReturnTypeCheck.h
Go to the documentation of this file.
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//===--- UseTrailingReturnTypeCheck.h - clang-tidy---------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USETRAILINGRETURNTYPECHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USETRAILINGRETURNTYPECHECK_H
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#include "../ClangTidyCheck.h"
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#include "clang/Lex/Token.h"
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namespace
clang
{
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namespace
tidy {
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namespace
modernize {
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struct
ClassifiedToken
{
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Token
T
;
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bool
IsQualifier
;
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bool
IsSpecifier
;
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};
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/// Rewrites function signatures to use a trailing return type.
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///
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/// For the user-facing documentation see:
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/// http://clang.llvm.org/extra/clang-tidy/checks/modernize/use-trailing-type-return.html
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class
UseTrailingReturnTypeCheck
:
public
ClangTidyCheck
{
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public
:
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UseTrailingReturnTypeCheck
(StringRef
Name
,
ClangTidyContext
*Context)
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:
ClangTidyCheck
(
Name
, Context) {}
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bool
isLanguageVersionSupported
(
const
LangOptions &
LangOpts
)
const override
{
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return
LangOpts
.CPlusPlus11;
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}
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void
registerMatchers
(ast_matchers::MatchFinder *Finder)
override
;
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void
registerPPCallbacks
(
const
SourceManager &SM, Preprocessor *PP,
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Preprocessor *ModuleExpanderPP)
override
;
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void
check
(
const
ast_matchers::MatchFinder::MatchResult &Result)
override
;
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private
:
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Preprocessor *PP =
nullptr
;
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SourceLocation findTrailingReturnTypeSourceLocation(
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const
FunctionDecl &F,
const
FunctionTypeLoc &FTL,
const
ASTContext &
Ctx
,
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const
SourceManager &SM,
const
LangOptions &
LangOpts
);
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llvm::Optional<SmallVector<ClassifiedToken, 8>>
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classifyTokensBeforeFunctionName(
const
FunctionDecl &F,
const
ASTContext &
Ctx
,
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const
SourceManager &SM,
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const
LangOptions &
LangOpts
);
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SourceRange findReturnTypeAndCVSourceRange(
const
FunctionDecl &F,
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const
TypeLoc &ReturnLoc,
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const
ASTContext &
Ctx
,
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const
SourceManager &SM,
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const
LangOptions &
LangOpts
);
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void
keepSpecifiers(std::string &
ReturnType
, std::string &Auto,
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SourceRange ReturnTypeCVRange,
const
FunctionDecl &F,
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const
FriendDecl *Fr,
const
ASTContext &
Ctx
,
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const
SourceManager &SM,
const
LangOptions &
LangOpts
);
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};
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}
// namespace modernize
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}
// namespace tidy
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}
// namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_USETRAILINGRETURNTYPECHECK_H
clang::tidy::modernize::ClassifiedToken
Definition:
UseTrailingReturnTypeCheck.h:19
clang::tidy::modernize::UseTrailingReturnTypeCheck::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition:
UseTrailingReturnTypeCheck.cpp:399
clang::tidy::modernize::UseTrailingReturnTypeCheck
Rewrites function signatures to use a trailing return type.
Definition:
UseTrailingReturnTypeCheck.h:29
clang::tidy::modernize::ClassifiedToken::IsSpecifier
bool IsSpecifier
Definition:
UseTrailingReturnTypeCheck.h:22
Ctx
Context Ctx
Definition:
TUScheduler.cpp:495
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition:
ClangTidyCheck.h:53
clang::tidy::modernize::ClassifiedToken::T
Token T
Definition:
UseTrailingReturnTypeCheck.h:20
clang::tidy::modernize::UseTrailingReturnTypeCheck::registerPPCallbacks
void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP) override
Override this to register PPCallbacks in the preprocessor.
Definition:
UseTrailingReturnTypeCheck.cpp:394
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition:
ClangTidyDiagnosticConsumer.h:67
clang::tidy::modernize::ClassifiedToken::IsQualifier
bool IsQualifier
Definition:
UseTrailingReturnTypeCheck.h:21
Name
Token Name
Definition:
MacroToEnumCheck.cpp:89
clang::tidy::modernize::UseTrailingReturnTypeCheck::UseTrailingReturnTypeCheck
UseTrailingReturnTypeCheck(StringRef Name, ClangTidyContext *Context)
Definition:
UseTrailingReturnTypeCheck.h:31
clang::tidy::modernize::UseTrailingReturnTypeCheck::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
Definition:
UseTrailingReturnTypeCheck.cpp:384
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition:
ApplyReplacements.h:27
LangOpts
const LangOptions * LangOpts
Definition:
ExtractFunction.cpp:366
clang::tidy::modernize::UseTrailingReturnTypeCheck::isLanguageVersionSupported
bool isLanguageVersionSupported(const LangOptions &LangOpts) const override
Override this to disable registering matchers and PP callbacks if an invalid language version is bein...
Definition:
UseTrailingReturnTypeCheck.h:33
ReturnType
std::string ReturnType
Definition:
CodeComplete.cpp:452
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