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//===--- IdentifierNamingCheck.h - clang-tidy -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IDENTIFIERNAMINGCHECK_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IDENTIFIERNAMINGCHECK_H
#include "../ClangTidy.h"
namespace clang {
class MacroInfo;
namespace tidy {
namespace readability {
/// Checks for identifiers naming style mismatch.
///
/// This check will try to enforce coding guidelines on the identifiers naming.
/// It supports `lower_case`, `UPPER_CASE`, `camelBack` and `CamelCase` casing
/// and tries to convert from one to another if a mismatch is detected.
///
/// It also supports a fixed prefix and suffix that will be prepended or
/// appended to the identifiers, regardless of the casing.
///
/// Many configuration options are available, in order to be able to create
/// different rules for different kind of identifier. In general, the
/// rules are falling back to a more generic rule if the specific case is not
/// configured.
class IdentifierNamingCheck : public ClangTidyCheck {
public:
IdentifierNamingCheck(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;
void registerPPCallbacks(CompilerInstance &Compiler) override;
void onEndOfTranslationUnit() override;
enum CaseType {
CT_AnyCase = 0,
CT_LowerCase,
CT_CamelBack,
CT_UpperCase,
CT_CamelCase,
CT_CamelSnakeCase,
CT_CamelSnakeBack
};
struct NamingStyle {
NamingStyle() = default;
NamingStyle(llvm::Optional<CaseType> Case, const std::string &Prefix,
const std::string &Suffix)
: Case(Case), Prefix(Prefix), Suffix(Suffix) {}
llvm::Optional<CaseType> Case;
std::string Prefix;
std::string Suffix;
};
/// \brief Holds an identifier name check failure, tracking the kind of the
/// identifer, its possible fixup and the starting locations of all the
/// identifier usages.
struct NamingCheckFailure {
std::string KindName;
std::string Fixup;
/// \brief Whether the failure should be fixed or not.
///
/// ie: if the identifier was used or declared within a macro we won't offer
/// a fixup for safety reasons.
bool ShouldFix;
/// \brief A set of all the identifier usages starting SourceLocation, in
/// their encoded form.
llvm::DenseSet<unsigned> RawUsageLocs;
NamingCheckFailure() : ShouldFix(true) {}
};
typedef std::pair<SourceLocation, std::string> NamingCheckId;
typedef llvm::DenseMap<NamingCheckId, NamingCheckFailure>
NamingCheckFailureMap;
/// Check Macros for style violations.
void checkMacro(SourceManager &sourceMgr, const Token &MacroNameTok,
const MacroInfo *MI);
/// Add a usage of a macro if it already has a violation.
void expandMacro(const Token &MacroNameTok, const MacroInfo *MI);
private:
std::vector<llvm::Optional<NamingStyle>> NamingStyles;
bool IgnoreFailedSplit;
NamingCheckFailureMap NamingCheckFailures;
};
} // namespace readability
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_IDENTIFIERNAMINGCHECK_H
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