react-native/React/Fabric/Mounting/RCTComponentViewRegistry.h
Valentin Shergin 2166d2bb79 Fabric: Trivial implementation of prelumiary view allocation on iOS
Summary:
@public
We have this feature in the current version of RN, so it would be nice to support that in Fabric as well. This should save us tens of ms of views creation during mounting.
And that's quite easy to do!

Reviewed By: fkgozali

Differential Revision: D8701992

fbshipit-source-id: 4e3049df009ffd65bb43043de388e81795e5e559
2018-06-29 20:02:38 -07:00

54 lines
1.5 KiB
Objective-C

/**
* Copyright (c) 2015-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import <UIKit/UIKit.h>
#import <React/RCTComponentViewProtocol.h>
NS_ASSUME_NONNULL_BEGIN
/**
* Registry of native component views.
* Provides basic functionality for allocation, recycling, and querying (by tag) native view instances.
*/
@interface RCTComponentViewRegistry : NSObject
/**
* Returns a native view instance from the recycle pool (or create)
* for given `componentName` and with given `tag`.
* #RefuseSingleUse
*/
- (UIView<RCTComponentViewProtocol> *)dequeueComponentViewWithName:(NSString *)componentName
tag:(ReactTag)tag;
/**
* Puts a given native component view to the recycle pool.
* #RefuseSingleUse
*/
- (void)enqueueComponentViewWithName:(NSString *)componentName
tag:(ReactTag)tag
componentView:(UIView<RCTComponentViewProtocol> *)componentView;
/**
* Returns a native component view by given `tag`.
*/
- (UIView<RCTComponentViewProtocol> *)componentViewByTag:(ReactTag)tag;
/**
* Returns `tag` assosiated with given `componentView`.
*/
- (ReactTag)tagByComponentView:(UIView<RCTComponentViewProtocol> *)componentView;
/**
* Creates a component view with a given type and puts it to the recycle pool.
*/
- (void)preliminaryCreateComponentViewWithName:(NSString *)componentName;
@end
NS_ASSUME_NONNULL_END