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clang::tidy::misc::UnusedUsingDeclsCheck Class Reference

Finds unused using declarations. More...

#include <UnusedUsingDeclsCheck.h>

Inheritance diagram for clang::tidy::misc::UnusedUsingDeclsCheck:
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Collaboration diagram for clang::tidy::misc::UnusedUsingDeclsCheck:
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Public Member Functions

 UnusedUsingDeclsCheck (StringRef Name, ClangTidyContext *Context)
void registerMatchers (ast_matchers::MatchFinder *Finder) override
 Override this to register AST matchers with Finder. More...
void check (const ast_matchers::MatchFinder::MatchResult &Result) override
 ClangTidyChecks that register ASTMatchers should do the actual work in here. More...
void onEndOfTranslationUnit () override
- Public Member Functions inherited from clang::tidy::ClangTidyCheck
 ClangTidyCheck (StringRef CheckName, ClangTidyContext *Context)
 Initializes the check with CheckName and Context. More...
virtual bool isLanguageVersionSupported (const LangOptions &LangOpts) const
 Override this to disable registering matchers and PP callbacks if an invalid language version is being used. More...
virtual void registerPPCallbacks (const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP)
 Override this to register PPCallbacks in the preprocessor. More...
DiagnosticBuilder diag (SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning)
 Add a diagnostic with the check's name. More...
virtual void storeOptions (ClangTidyOptions::OptionMap &Options)
 Should store all options supported by this check with their current values or default values for options that haven't been overridden. More...

Additional Inherited Members

- Protected Member Functions inherited from clang::tidy::ClangTidyCheck
StringRef getCurrentMainFile () const
 Returns the main file name of the current translation unit. More...
const LangOptions & getLangOpts () const
 Returns the language options from the context. More...
- Protected Attributes inherited from clang::tidy::ClangTidyCheck
OptionsView Options

Detailed Description

Finds unused using declarations.

For the user-facing documentation see:

Definition at line 24 of file UnusedUsingDeclsCheck.h.

Constructor & Destructor Documentation

◆ UnusedUsingDeclsCheck()

clang::tidy::misc::UnusedUsingDeclsCheck::UnusedUsingDeclsCheck ( StringRef  Name,
ClangTidyContext Context 

Definition at line 26 of file UnusedUsingDeclsCheck.h.

References registerMatchers().

Member Function Documentation

◆ check()

void clang::tidy::misc::UnusedUsingDeclsCheck::check ( const ast_matchers::MatchFinder::MatchResult &  Result)

ClangTidyChecks that register ASTMatchers should do the actual work in here.

Reimplemented from clang::tidy::ClangTidyCheck.

Definition at line 81 of file UnusedUsingDeclsCheck.cpp.

◆ onEndOfTranslationUnit()

void clang::tidy::misc::UnusedUsingDeclsCheck::onEndOfTranslationUnit ( )

Definition at line 180 of file UnusedUsingDeclsCheck.cpp.

◆ registerMatchers()

void clang::tidy::misc::UnusedUsingDeclsCheck::registerMatchers ( ast_matchers::MatchFinder *  Finder)

Override this to register AST matchers with Finder.

This should be used by clang-tidy checks that analyze code properties that dependent on AST knowledge.

You can register as many matchers as necessary with Finder. Usually, "this" will be used as callback, but you can also specify other callback classes. Thereby, different matchers can trigger different callbacks.

This will only be executed if the function isLanguageVersionSupported returns true.

If you need to merge information between the different matchers, you can store these as members of the derived class. However, note that all matches occur in the order of the AST traversal.

Reimplemented from clang::tidy::ClangTidyCheck.

Definition at line 60 of file UnusedUsingDeclsCheck.cpp.

Referenced by UnusedUsingDeclsCheck().

The documentation for this class was generated from the following files: