Swiftgram/Source/Base/ASAvailability.h
appleguy 2cda73a334 [ASTextNode2] Provide compiler flag to enable ASTextNode2 for all usages. (#410)
* [ASTextNode2] Provide compiler flag to enable ASTextNode2 for all usages.

The runtime switch is helpful, but is too slow to be shipped in a large
production application where startup time is carefully optimized.

Although this doesn't pass text-related snapshot tests when enabled, it
does allow apps to rely on built-in components like ASButtonNode using
the same text stack as when they are manually creating ASTextNode2
instances.

A simpler approach would be to use a #define ASTextNode ASTextNode2,
but this would create unusual keyword highlighting in code referencing
ASTextNode. However, because it would be less invasive and this is
not on by default, we could do that instead if preferred.

* Update AsyncDisplayKit.h

* [ASTextNode2] Improve naming and documentation of ASTEXTNODE_EXPERIMENT_GLOBAL_ENABLE

* [ASTextNode2] CHANGELOG.md for #410.
2017-07-02 21:40:51 -07:00

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Objective-C

//
// ASAvailability.h
// Texture
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
// grant of patent rights can be found in the PATENTS file in the same directory.
//
// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
#import <CoreFoundation/CFBase.h>
#pragma once
#ifndef kCFCoreFoundationVersionNumber_iOS_9_0
#define kCFCoreFoundationVersionNumber_iOS_9_0 1240.10
#endif
#ifndef kCFCoreFoundationVersionNumber_iOS_10_0
#define kCFCoreFoundationVersionNumber_iOS_10_0 1348.00
#endif
#define AS_AT_LEAST_IOS9 (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_9_0)
#define AS_AT_LEAST_IOS10 (kCFCoreFoundationVersionNumber >= kCFCoreFoundationVersionNumber_iOS_10_0)
// If Yoga is available, make it available anywhere we use ASAvailability.
// This reduces Yoga-specific code in other files.
// NOTE: Yoga integration is experimental and not fully tested. Use with caution and test layouts carefully.
#ifndef YOGA_HEADER_PATH
#define YOGA_HEADER_PATH <yoga/Yoga.h>
#endif
#ifndef YOGA
#define YOGA __has_include(YOGA_HEADER_PATH)
#endif
// When enabled, use ASTextNode2 for ALL instances of ASTextNode.
// This includes what ASButtonNode uses internally, as well as all app references to ASTextNode.
// See ASTextNode+Beta.h declaration of ASTextNodeExperimentOptions for more details.
#ifndef ASTEXTNODE_EXPERIMENT_GLOBAL_ENABLE
#define ASTEXTNODE_EXPERIMENT_GLOBAL_ENABLE 0
#endif
#define AS_PIN_REMOTE_IMAGE __has_include(<PINRemoteImage/PINRemoteImage.h>)
#define AS_IG_LIST_KIT __has_include(<IGListKit/IGListKit.h>)
/**
* For IGListKit versions < 3.0, you have to use IGListCollectionView.
* For 3.0 and later, that class is removed and you use UICollectionView.
*/
#define IG_LIST_COLLECTION_VIEW __has_include(<IGListKit/IGListCollectionView.h>)