clang-tools 10.0.0

MisplacedWideningCastCheck.h
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1 //===--- MisplacedWideningCastCheck.h - clang-tidy---------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_MISPLACEDWIDENINGCASTCHECK_H
10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_MISPLACEDWIDENINGCASTCHECK_H
11
12 #include "../ClangTidyCheck.h"
13
14 namespace clang {
15 namespace tidy {
16 namespace bugprone {
17
18 /// Find casts of calculation results to bigger type. Typically from int to
19 /// long. If the intention of the cast is to avoid loss of precision then
20 /// the cast is misplaced, and there can be loss of precision. Otherwise
21 /// such cast is ineffective.
22 ///
23 /// There is one option:
24 ///
25 /// - `CheckImplicitCasts`: Whether to check implicit casts as well which may
26 // be the most common case. Enabled by default.
27 ///
28 /// For the user-facing documentation see:
29 /// http://clang.llvm.org/extra/clang-tidy/checks/bugprone-misplaced-widening-cast.html
30 class MisplacedWideningCastCheck : public ClangTidyCheck {
31 public:
32 MisplacedWideningCastCheck(StringRef Name, ClangTidyContext *Context);
33 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
34 void registerMatchers(ast_matchers::MatchFinder *Finder) override;
35 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
36
37 private:
38 const bool CheckImplicitCasts;
39 };
40
41 } // namespace bugprone
42 } // namespace tidy
43 } // namespace clang
44
45 #endif
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition: ClangTidyCheck.h:47
clang::tidy::bugprone::MisplacedWideningCastCheck
Find casts of calculation results to bigger type.
Definition: MisplacedWideningCastCheck.h:30
clang::tidy::bugprone::MisplacedWideningCastCheck::storeOptions
void storeOptions(ClangTidyOptions::OptionMap &Opts) override
Should store all options supported by this check with their current values or default values for opti...
Definition: MisplacedWideningCastCheck.cpp:25
clang::tidy::bugprone::MisplacedWideningCastCheck::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
Definition: MisplacedWideningCastCheck.cpp:30
clang::tidy::bugprone::MisplacedWideningCastCheck::MisplacedWideningCastCheck
MisplacedWideningCastCheck(StringRef Name, ClangTidyContext *Context)
Definition: MisplacedWideningCastCheck.cpp:20
Name
static constexpr llvm::StringLiteral Name
Definition: UppercaseLiteralSuffixCheck.cpp:27
clang::tidy::ClangTidyOptions::OptionMap
std::map< std::string, std::string > OptionMap
Definition: ClangTidyOptions.h:97
clang::tidy::bugprone::MisplacedWideningCastCheck::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition: MisplacedWideningCastCheck.cpp:183
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition: ClangTidyDiagnosticConsumer.h:77