Alexander Kornienko ebdfb9cf0c [Clang-tidy] check for malloc, realloc and free calls
Summary:
This checker flags the use of C-style memory management functionality and notes about modern alternatives.
In an earlier revision it tried to autofix some kind of patterns, but that was a bad idea. Since memory management can be so widespread in a program, manual updating is most likely necessary.
Maybe for special cases, there could be later additions to this basic checker.

This is the first checker I wrote and I never did something with clang (only compiling programs). So whenever I missed conventions or did plain retarded stuff, feel free to point it out! I am willing to fix them and write a better checker.

I hope the patch does work, I never did this either. On a testapply in my repository it did, but I am pretty unconfident in my patching skills :)

Reviewers: aaron.ballman, hokein, alexfh, malcolm.parsons

Subscribers: cfe-commits, JDevlieghere, nemanjai, Eugene.Zelenko, Prazek, mgorny, modocache

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D26167

Patch by Jonas Toth!

llvm-svn: 289546
2016-12-13 16:38:18 +00:00

45 lines
1.6 KiB
C++

//===--- NoMallocCheck.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_CPPCOREGUIDELINES_NO_MALLOC_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H
#include "../ClangTidy.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
namespace clang {
namespace tidy {
namespace cppcoreguidelines {
/// This checker is concerned with C-style memory management and suggest modern
/// alternatives to it.
/// The check is only enabled in C++. For analyzing malloc calls see Clang
/// Static Analyzer - unix.Malloc.
///
/// For the user-facing documentation see:
/// http://clang.llvm.org/extra/clang-tidy/checks/cppcoreguidelines-no-malloc.html
class NoMallocCheck : public ClangTidyCheck {
public:
NoMallocCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context) {}
/// Registering for malloc, calloc, realloc and free calls.
void registerMatchers(ast_matchers::MatchFinder *Finder) override;
/// Checks matched function calls and gives suggestion to modernize the code.
void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
};
} // namespace cppcoreguidelines
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H