forked from OSchip/llvm-project
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
//===--- NonConstParameterCheck.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_NON_CONST_PARAMETER_H
|
|
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_NON_CONST_PARAMETER_H
|
|
|
|
#include "../ClangTidy.h"
|
|
|
|
namespace clang {
|
|
namespace tidy {
|
|
namespace readability {
|
|
|
|
/// Warn when a pointer function parameter can be const.
|
|
///
|
|
/// For the user-facing documentation see:
|
|
/// http://clang.llvm.org/extra/clang-tidy/checks/readability-non-const-parameter.html
|
|
class NonConstParameterCheck : public ClangTidyCheck {
|
|
public:
|
|
NonConstParameterCheck(StringRef Name, ClangTidyContext *Context)
|
|
: ClangTidyCheck(Name, Context) {}
|
|
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
|
|
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
|
|
void onEndOfTranslationUnit() override;
|
|
|
|
private:
|
|
/// Parameter info.
|
|
struct ParmInfo {
|
|
/// Is function parameter referenced?
|
|
bool IsReferenced;
|
|
|
|
/// Can function parameter be const?
|
|
bool CanBeConst;
|
|
};
|
|
|
|
/// Track all nonconst integer/float parameters.
|
|
std::map<const ParmVarDecl *, ParmInfo> Parameters;
|
|
|
|
/// Add function parameter.
|
|
void addParm(const ParmVarDecl *Parm);
|
|
|
|
/// Set IsReferenced.
|
|
void setReferenced(const DeclRefExpr *Ref);
|
|
|
|
/// Set CanNotBeConst.
|
|
/// Visits sub expressions recursively. If a DeclRefExpr is found
|
|
/// and CanNotBeConst is true the Parameter is marked as not-const.
|
|
/// The CanNotBeConst is updated as sub expressions are visited.
|
|
void markCanNotBeConst(const Expr *E, bool CanNotBeConst);
|
|
|
|
/// Diagnose non const parameters.
|
|
void diagnoseNonConstParameters();
|
|
};
|
|
|
|
} // namespace readability
|
|
} // namespace tidy
|
|
} // namespace clang
|
|
|
|
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_NON_CONST_PARAMETER_H
|