llvm-project/clang-tools-extra/clang-tidy/modernize/RedundantVoidArgCheck.h

78 lines
2.7 KiB
C++

//===--- RedundantVoidArgCheck.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_REDUNDANT_VOID_ARG_CHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_REDUNDANT_VOID_ARG_CHECK_H
#include "../ClangTidy.h"
#include "clang/Lex/Token.h"
#include <string>
namespace clang {
namespace tidy {
namespace modernize {
/// \brief Find and remove redundant void argument lists.
///
/// Examples:
/// `int f(void);` becomes `int f();`
/// `int (*f(void))(void);` becomes `int (*f())();`
/// `typedef int (*f_t(void))(void);` becomes `typedef int (*f_t())();`
/// `void (C::*p)(void);` becomes `void (C::*p)();`
/// `C::C(void) {}` becomes `C::C() {}`
/// `C::~C(void) {}` becomes `C::~C() {}`
///
class RedundantVoidArgCheck : public ClangTidyCheck {
public:
RedundantVoidArgCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context) {}
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
private:
void processFunctionDecl(const ast_matchers::MatchFinder::MatchResult &Result,
const FunctionDecl *Function);
void
processTypedefNameDecl(const ast_matchers::MatchFinder::MatchResult &Result,
const TypedefNameDecl *Typedef);
void processFieldDecl(const ast_matchers::MatchFinder::MatchResult &Result,
const FieldDecl *Member);
void processVarDecl(const ast_matchers::MatchFinder::MatchResult &Result,
const VarDecl *Var);
void
processNamedCastExpr(const ast_matchers::MatchFinder::MatchResult &Result,
const CXXNamedCastExpr *NamedCast);
void
processExplicitCastExpr(const ast_matchers::MatchFinder::MatchResult &Result,
const ExplicitCastExpr *ExplicitCast);
void processLambdaExpr(const ast_matchers::MatchFinder::MatchResult &Result,
const LambdaExpr *Lambda);
void
removeVoidArgumentTokens(const ast_matchers::MatchFinder::MatchResult &Result,
SourceRange Range, StringRef GrammarLocation);
void removeVoidToken(Token VoidToken, StringRef Diagnostic);
};
} // namespace modernize
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_REDUNDANT_VOID_ARG_CHECK_H