clang-tools  6.0.0svn
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clang::tidy::misc::RedundantExpressionCheck Class Reference

The checker detects expressions that are redundant, because they contain ineffective, useless parts. More...

#include <RedundantExpressionCheck.h>

Inheritance diagram for clang::tidy::misc::RedundantExpressionCheck:
Inheritance graph
Collaboration diagram for clang::tidy::misc::RedundantExpressionCheck:
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Public Member Functions

 RedundantExpressionCheck (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...
- Public Member Functions inherited from clang::tidy::ClangTidyCheck
 ClangTidyCheck (StringRef CheckName, ClangTidyContext *Context)
 Initializes the check with CheckName and Context. More...
virtual void registerPPCallbacks (CompilerInstance &Compiler)
 Override this to register PPCallbacks with Compiler. 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...
LangOptions getLangOpts () const
 Returns the language options from the context. More...
- Protected Attributes inherited from clang::tidy::ClangTidyCheck
OptionsView Options

Detailed Description

The checker detects expressions that are redundant, because they contain ineffective, useless parts.

For the user-facing documentation see:

Definition at line 24 of file RedundantExpressionCheck.h.

Constructor & Destructor Documentation

◆ RedundantExpressionCheck()

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

Definition at line 26 of file RedundantExpressionCheck.h.

References registerMatchers().

Member Function Documentation

◆ check()

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

◆ registerMatchers()

void clang::tidy::misc::RedundantExpressionCheck::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.

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 626 of file RedundantExpressionCheck.cpp.

Referenced by RedundantExpressionCheck().

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