mirror of
https://github.com/TextureGroup/Texture.git
synced 2026-04-07 19:17:39 +00:00
ricky
2c7ba22347
While NSCache is thread safe, that alone does not make `rendererForAttributes` thread safe. This experiment will add a lock to `rendererForAttributes` to see how that affects performance/stability. As second experiment will forego the cache altogether to validate that we are getting some value out of having a renderer cache.
56 lines
2.1 KiB
Plaintext
56 lines
2.1 KiB
Plaintext
//
|
|
// ASExperimentalFeatures.mm
|
|
// Texture
|
|
//
|
|
// Copyright (c) Pinterest, Inc. All rights reserved.
|
|
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
|
|
#import <AsyncDisplayKit/ASExperimentalFeatures.h>
|
|
|
|
#import <AsyncDisplayKit/ASCollections.h>
|
|
|
|
NSArray<NSString *> *ASExperimentalFeaturesGetNames(ASExperimentalFeatures flags)
|
|
{
|
|
NSArray *allNames = ASCreateOnce((@[@"exp_text_node",
|
|
@"exp_interface_state_coalesce",
|
|
@"exp_infer_layer_defaults",
|
|
@"exp_collection_teardown",
|
|
@"exp_framesetter_cache",
|
|
@"exp_skip_clear_data",
|
|
@"exp_did_enter_preload_skip_asm_layout",
|
|
@"exp_dispatch_apply",
|
|
@"exp_drawing_global",
|
|
@"exp_optimize_data_controller_pipeline",
|
|
@"exp_disable_global_textkit_lock",
|
|
@"exp_main_thread_only_data_controller",
|
|
@"exp_range_update_on_changeset_update",
|
|
@"exp_no_text_renderer_cache",
|
|
@"exp_lock_text_renderer_cache"]));
|
|
|
|
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 = kNilOptions;
|
|
for (NSString *str in array) {
|
|
NSUInteger i = [allNames indexOfObject:str];
|
|
if (i != NSNotFound) {
|
|
result |= (1 << i);
|
|
}
|
|
}
|
|
return result;
|
|
}
|