Swiftgram/Source/ASExperimentalFeatures.m
Adlai Holler 27fac9f586
Create a centralized configuration API (#747)
* Update the dangerfile

* Make a trivial change to test new dangerfile

* Try out the new value with another trivial change

* Add a configuration API to make a unified place for pulling config from clients safely

* Specify properties for delegate

* Finish removing text experiment global enable

* Generate the config file

* Clean up configuration to fix tests

* Work on making it serializable

* Finish it up

* Fix example code

* Update sample project

* Clean up a few things

* Align with new project order

* Make it faster and update license header

* Add an option to specify your config at compile time

* Update another license header

* Add a version field, and bring interface state coalescing into configuration

* Update CA queue code

* Update CATransactionQueue tests

* Turn transaction queue on by default (for now, see comment)

* Update the tests

* Update the tests AGAIN

* Remove unused ordered set
2018-03-25 12:52:57 -07:00

46 lines
1.4 KiB
Objective-C

//
// ASExperimentalFeatures.m
// Texture
//
// Copyright (c) 2018-present, Pinterest, Inc. All rights reserved.
// 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 <AsyncDisplayKit/ASExperimentalFeatures.h>
NSArray<NSString *> *ASExperimentalFeaturesGetNames(ASExperimentalFeatures flags)
{
NSArray *allNames = ASCreateOnce((@[@"exp_graphics_contexts",
@"exp_text_node",
@"exp_interface_state_coalesce"]));
if (flags == ASExperimentalFeatureAll) {
return allNames;
}
// Go through all names, testing each bit.
NSUInteger i = 0;
return ASArrayByFlatMapping(allNames, NSString *name, ({
(flags & (1 << i++)) ? name : nil;
}));
}
// O(N^2) but with counts this small, it's probably faster
// than hashing the strings.
ASExperimentalFeatures ASExperimentalFeaturesFromArray(NSArray<NSString *> *array)
{
NSArray *allNames = ASExperimentalFeaturesGetNames(ASExperimentalFeatureAll);
ASExperimentalFeatures result = 0;
for (NSString *str in array) {
NSUInteger i = [allNames indexOfObject:str];
if (i != NSNotFound) {
result |= (1 << i);
}
}
return result;
}