llvm-project/clang-tools-extra/clang-tidy/cppcoreguidelines/NoMallocCheck.h

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2.5 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:
/// Construct Checker and read in configuration for function names.
NoMallocCheck(StringRef Name, ClangTidyContext *Context)
: ClangTidyCheck(Name, Context),
AllocList(Options.get("Allocations", "::malloc;::calloc")),
ReallocList(Options.get("Reallocations", "::realloc")),
DeallocList(Options.get("Deallocations", "::free")) {}
/// Make configuration of checker discoverable.
void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
/// 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;
private:
/// Semicolon-separated list of fully qualified names of memory allocation
/// functions the check warns about. Defaults to `::malloc;::calloc`.
const std::string AllocList;
/// Semicolon-separated list of fully qualified names of memory reallocation
/// functions the check warns about. Defaults to `::realloc`.
const std::string ReallocList;
/// Semicolon-separated list of fully qualified names of memory deallocation
/// functions the check warns about. Defaults to `::free`.
const std::string DeallocList;
};
} // namespace cppcoreguidelines
} // namespace tidy
} // namespace clang
#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_NO_MALLOC_H