Swiftgram/Source/ASCollections.h
appleguy 465abb1ded [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses). (#1077)
* [License] Simplify the Texture license to be pure Apache 2 (removing ASDK-Licenses)

With permission of the Facebook Open Source team, we are simplifying the Texture
license so that clients can rely on the Apache 2 terms that most of Texture is
already covered by. This means that code originally forked from AsyncDisplayKit
will be re-licensed from "BSD 3-clause + PATENTS v2" to Apache 2 without a
PATENTS file.

After getting confirmation that the updates to these core files look good, we'll
propagate this new license header to all files (in this same PR) and get sign-off
from all parties before landing.

* [License] Update all Texture source files to be pure Apache 2.

* Changelog entry for Apache 2 license update.

* Revert "[License] Update all Texture source files to be pure Apache 2."

This reverts commit ffa0fbbba9717d871dd16c4b07539f2f8208fc2b.

* [License] Update all Texture source files to be pure Apache 2, maintaining copyrights.

* [License] Update CONTRIBUTING, README, Podspec & Dangerfile.
2018-08-28 07:39:18 -07:00

39 lines
1.1 KiB
Objective-C

//
// ASCollections.h
// Texture
//
// Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
@interface NSArray<__covariant ObjectType> (ASCollections)
/**
* Create an immutable NSArray from a C-array of strong pointers.
*
* Note: The memory for the array you pass in will be zero'd (to prevent ARC from releasing
* the references when the array goes out of scope.)
*
* Can be combined with vector like:
* vector<NSString *> vec;
* vec.push_back(@"foo");
* vec.push_back(@"bar");
* NSArray *arr = [NSArray arrayTransferring:vec.data() count:vec.size()]
* ** vec is now { nil, nil } **
*
* Unfortunately making a convenience method to do this is currently impossible because
* vector<NSString *> can't be converted to vector<id> by the compiler (silly).
*
* See the private __CFArrayCreateTransfer function.
*/
+ (NSArray<ObjectType> *)arrayByTransferring:(ObjectType _Nonnull __strong * _Nonnull)pointers
count:(NSUInteger)count NS_RETURNS_RETAINED;
@end
NS_ASSUME_NONNULL_END