clang-tools 20.0.0git
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This check gives a warning if a loop variable has a too small type which might not be able to represent all values which are part of the whole range in which the loop iterates. More...
#include <TooSmallLoopVariableCheck.h>
Public Member Functions | |
TooSmallLoopVariableCheck (StringRef Name, ClangTidyContext *Context) | |
void | storeOptions (ClangTidyOptions::OptionMap &Opts) override |
Should store all options supported by this check with their current values or default values for options that haven't been overridden. | |
void | registerMatchers (ast_matchers::MatchFinder *Finder) override |
The matcher for loops with suspicious integer loop variable. | |
void | check (const ast_matchers::MatchFinder::MatchResult &Result) override |
ClangTidyChecks that register ASTMatchers should do the actual work in here. | |
Public Member Functions inherited from clang::tidy::ClangTidyCheck | |
ClangTidyCheck (StringRef CheckName, ClangTidyContext *Context) | |
Initializes the check with CheckName and Context . | |
virtual bool | isLanguageVersionSupported (const LangOptions &LangOpts) const |
Override this to disable registering matchers and PP callbacks if an invalid language version is being used. | |
virtual void | registerPPCallbacks (const SourceManager &SM, Preprocessor *PP, Preprocessor *ModuleExpanderPP) |
Override this to register PPCallbacks in the preprocessor. | |
virtual void | registerMatchers (ast_matchers::MatchFinder *Finder) |
Override this to register AST matchers with Finder . | |
virtual void | check (const ast_matchers::MatchFinder::MatchResult &Result) |
ClangTidyChecks that register ASTMatchers should do the actual work in here. | |
DiagnosticBuilder | diag (SourceLocation Loc, StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning) |
Add a diagnostic with the check's name. | |
DiagnosticBuilder | diag (StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning) |
Add a diagnostic with the check's name. | |
DiagnosticBuilder | configurationDiag (StringRef Description, DiagnosticIDs::Level Level=DiagnosticIDs::Warning) const |
Adds a diagnostic to report errors in the check's configuration. | |
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. | |
Additional Inherited Members | |
Protected Member Functions inherited from clang::tidy::ClangTidyCheck | |
StringRef | getCurrentMainFile () const |
Returns the main file name of the current translation unit. | |
const LangOptions & | getLangOpts () const |
Returns the language options from the context. | |
bool | areDiagsSelfContained () const |
Returns true when the check is run in a use case when only 1 fix will be applied at a time. | |
StringRef | getID () const override |
Protected Attributes inherited from clang::tidy::ClangTidyCheck | |
OptionsView | Options |
This check gives a warning if a loop variable has a too small type which might not be able to represent all values which are part of the whole range in which the loop iterates.
If the loop variable's type is too small we might end up in an infinite loop. Example:
For the user-facing documentation see: http://clang.llvm.org/extra/clang-tidy/checks/bugprone/too-small-loop-variable.html
Definition at line 28 of file TooSmallLoopVariableCheck.h.
clang::tidy::bugprone::TooSmallLoopVariableCheck::TooSmallLoopVariableCheck | ( | StringRef | Name, |
ClangTidyContext * | Context | ||
) |
Definition at line 46 of file TooSmallLoopVariableCheck.cpp.
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overridevirtual |
ClangTidyChecks
that register ASTMatchers should do the actual work in here.
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 185 of file TooSmallLoopVariableCheck.cpp.
References clang::tidy::bugprone::calcMagnitudeBits(), clang::tidy::bugprone::calcUpperBoundMagnitudeBits(), clang::tidy::ClangTidyCheck::diag(), clang::tidy::bugprone::formatIntegralType(), clang::tidy::bugprone::LoopIncrementName, clang::tidy::bugprone::LoopUpperBoundName, and clang::tidy::bugprone::LoopVarName.
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overridevirtual |
The matcher for loops with suspicious integer loop variable.
In this general example, assuming 'j' and 'k' are of integral type:
The following string identifiers are bound to these parts of the AST: LoopVarName: 'j' (as a VarDecl) LoopVarCastName: 'j' (after implicit conversion) LoopUpperBoundName: '3 + 2' (as an Expr) LoopIncrementName: 'k' (as an Expr) LoopName: The entire for loop (as a ForStmt)
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 69 of file TooSmallLoopVariableCheck.cpp.
References clang::tidy::bugprone::LoopIncrementName, clang::tidy::bugprone::LoopName, clang::tidy::bugprone::LoopUpperBoundName, clang::tidy::bugprone::LoopVarCastName, and clang::tidy::bugprone::LoopVarName.
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overridevirtual |
Should store all options supported by this check with their current values or default values for options that haven't been overridden.
The check should use Options.store()
to store each option it supports whether it has the default value or it has been overridden.
Reimplemented from clang::tidy::ClangTidyCheck.
Definition at line 51 of file TooSmallLoopVariableCheck.cpp.
References clang::tidy::ClangTidyCheck::Options, and clang::tidy::ClangTidyCheck::OptionsView::store().