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//===--- FunctionCognitiveComplexityCheck.h - clang-tidy --------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_FUNCTIONCOGNITIVECOMPLEXITYCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_FUNCTIONCOGNITIVECOMPLEXITYCHECK_H
#include "../ClangTidyCheck.h"
namespace clang::tidy::readability {
/// Checks function Cognitive Complexity metric.
///
/// There are the following configuration option:
///
/// * `Threshold` - flag functions with Cognitive Complexity exceeding
/// this number. The default is `25`.
/// * `DescribeBasicIncrements`- if set to `true`, then for each function
/// exceeding the complexity threshold the check will issue additional
/// diagnostics on every piece of code (loop, `if` statement, etc.) which
/// contributes to that complexity.
// Default is `true`
/// * `IgnoreMacros` - if set to `true`, the check will ignore code inside
/// macros. Default is `false`.
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/readability/function-cognitive-complexity.html
class FunctionCognitiveComplexityCheck : public ClangTidyCheck {
public:
FunctionCognitiveComplexityCheck(StringRef Name, ClangTidyContext *Context);
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
std::optional<TraversalKind> getCheckTraversalKind() const override {
return TK_IgnoreUnlessSpelledInSource;
}
private:
const unsigned Threshold;
const bool DescribeBasicIncrements;
const bool IgnoreMacros;
};
} // namespace clang::tidy::readability
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_FUNCTIONCOGNITIVECOMPLEXITYCHECK_H
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