mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
0174528f81
The `-Winvalid-offsetof` warning is valid in this case. `offsetof` is being applied to types with a non-standard layout. The layout of this type is undefined by the specification. There is no guarantee that the type layout is uniform across all ABIs. It is not possible to portably compute the offset statically, especially efficiently. Sink this check into a unit test to avoid performing this test at runtime. In order to do this in the standard library, we would need to do this check through a global constructor.
62 lines
2.5 KiB
C++
62 lines
2.5 KiB
C++
///===--- ExecutorChecks.cpp - Static assertions to check struct layouts ---===///
|
|
///
|
|
/// This source file is part of the Swift.org open source project
|
|
///
|
|
/// Copyright (c) 2014 - 2020 Apple Inc. and the Swift project authors
|
|
/// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
///
|
|
/// See https:///swift.org/LICENSE.txt for license information
|
|
/// See https:///swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
///
|
|
///===----------------------------------------------------------------------===///
|
|
///
|
|
/// This file is responsible for checking that the structures in ExecutorImpl.h
|
|
/// are laid out exactly the same as those in the ABI headers.
|
|
///
|
|
///===----------------------------------------------------------------------===///
|
|
|
|
#include "swift/Runtime/Concurrency.h"
|
|
|
|
#include "swift/ABI/Executor.h"
|
|
#include "swift/ABI/MetadataValues.h"
|
|
#include "swift/ABI/Task.h"
|
|
|
|
#include "ExecutorImpl.h"
|
|
|
|
// JobFlags
|
|
static_assert(sizeof(swift::JobFlags) == sizeof(SwiftJobFlags));
|
|
|
|
// JobKind
|
|
static_assert(sizeof(swift::JobKind) == sizeof(SwiftJobKind));
|
|
static_assert((SwiftJobKind)swift::JobKind::Task == SwiftTaskJobKind);
|
|
static_assert((SwiftJobKind)swift::JobKind::First_Reserved == SwiftFirstReservedJobKind);
|
|
|
|
// JobPriority
|
|
static_assert(sizeof(swift::JobPriority) == sizeof(SwiftJobPriority));
|
|
static_assert((SwiftJobPriority)swift::JobPriority::UserInteractive
|
|
== SwiftUserInteractiveJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::UserInteractive
|
|
== SwiftUserInteractiveJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::UserInitiated
|
|
== SwiftUserInitiatedJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::Default
|
|
== SwiftDefaultJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::Utility
|
|
== SwiftUtilityJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::Background
|
|
== SwiftBackgroundJobPriority);
|
|
static_assert((SwiftJobPriority)swift::JobPriority::Unspecified
|
|
== SwiftUnspecifiedJobPriority);
|
|
|
|
// Job (has additional fields not exposed via SwiftJob)
|
|
static_assert(sizeof(swift::Job) >= sizeof(SwiftJob));
|
|
|
|
// SerialExecutorRef
|
|
static_assert(sizeof(swift::SerialExecutorRef) == sizeof(SwiftExecutorRef));
|
|
|
|
// swift_clock_id
|
|
static_assert((SwiftClockId)swift::swift_clock_id_continuous
|
|
== SwiftContinuousClock);
|
|
static_assert((SwiftClockId)swift::swift_clock_id_suspending ==
|
|
SwiftSuspendingClock);
|