mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-27 14:52:16 +00:00
10780a46ba
Differential Revision: https://phabricator.services.mozilla.com/D7323 --HG-- extra : moz-landing-system : lando
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef mozilla_StaticAnalysisFunctions_h
|
|
#define mozilla_StaticAnalysisFunctions_h
|
|
|
|
#ifndef __cplusplus
|
|
#ifndef bool
|
|
#include <stdbool.h>
|
|
#endif
|
|
#define MOZ_CONSTEXPR
|
|
#else // __cplusplus
|
|
#define MOZ_CONSTEXPR constexpr
|
|
#endif
|
|
/*
|
|
* Functions that are used as markers in Gecko code for static analysis. Their
|
|
* purpose is to have different AST nodes generated during compile time and to
|
|
* match them based on different checkers implemented in build/clang-plugin
|
|
*/
|
|
|
|
#ifdef MOZ_CLANG_PLUGIN
|
|
|
|
#ifdef __cplusplus
|
|
/**
|
|
* MOZ_KnownLive - used to opt an argument out of the CanRunScript checker so
|
|
* that we don't check it if is a strong ref.
|
|
*
|
|
* Example:
|
|
* canRunScript(MOZ_KnownLive(rawPointer));
|
|
*/
|
|
template <typename T>
|
|
static MOZ_ALWAYS_INLINE T* MOZ_KnownLive(T* ptr) { return ptr; }
|
|
|
|
/**
|
|
* Ditto, but for references.
|
|
*/
|
|
template <typename T>
|
|
static MOZ_ALWAYS_INLINE T& MOZ_KnownLive(T& ref) { return ref; }
|
|
|
|
#endif
|
|
|
|
/**
|
|
* MOZ_AssertAssignmentTest - used in MOZ_ASSERT in order to test the possible
|
|
* presence of assignment instead of logical comparisons.
|
|
*
|
|
* Example:
|
|
* MOZ_ASSERT(retVal = true);
|
|
*/
|
|
static MOZ_ALWAYS_INLINE MOZ_CONSTEXPR bool MOZ_AssertAssignmentTest(bool exprResult) {
|
|
return exprResult;
|
|
}
|
|
|
|
#define MOZ_CHECK_ASSERT_ASSIGNMENT(expr) MOZ_AssertAssignmentTest(!!(expr))
|
|
|
|
#else
|
|
|
|
#define MOZ_CHECK_ASSERT_ASSIGNMENT(expr) (!!(expr))
|
|
#define MOZ_KnownLive(expr) (expr)
|
|
|
|
#endif /* MOZ_CLANG_PLUGIN */
|
|
#endif /* StaticAnalysisFunctions_h */
|