react-native/React/Base/RCTJavaScriptExecutor.h

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/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <objc/runtime.h>
#import <JavaScriptCore/JavaScriptCore.h>
#import "RCTBridgeModule.h"
#import "RCTInvalidating.h"
typedef void (^RCTJavaScriptCompleteBlock)(NSError *error);
typedef void (^RCTJavaScriptCallback)(id json, NSError *error);
/**
* Abstracts away a JavaScript execution context - we may be running code in a
* web view (for debugging purposes), or may be running code in a `JSContext`.
*/
@protocol RCTJavaScriptExecutor <RCTInvalidating, RCTBridgeModule>
/**
* Used to set up the executor after the bridge has been fully initialized.
* Do any expensive setup in this method instead of `-init`.
*/
- (void)setUp;
/**
* Executes given method with arguments on JS thread and calls the given callback
* with JSValue and JSContext as a result of the JS module call.
*/
- (void)executeJSCall:(NSString *)name
method:(NSString *)method
arguments:(NSArray *)arguments
callback:(RCTJavaScriptCallback)onComplete;
/**
* Runs an application script, and notifies of the script load being complete via `onComplete`.
*/
- (void)executeApplicationScript:(NSString *)script
sourceURL:(NSURL *)sourceURL
onComplete:(RCTJavaScriptCompleteBlock)onComplete;
- (void)injectJSONText:(NSString *)script
asGlobalObjectNamed:(NSString *)objectName
callback:(RCTJavaScriptCompleteBlock)onComplete;
/**
* Enqueue a block to run in the executors JS thread. Fallback to `dispatch_async`
* on the main queue if the executor doesn't own a thread.
*/
- (void)executeBlockOnJavaScriptQueue:(dispatch_block_t)block;
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@optional
/**
* Special case for Timers + ContextExecutor - instead of the default
* if jsthread then call else dispatch call on jsthread
* ensure the call is made async on the jsthread
*/
- (void)executeAsyncBlockOnJavaScriptQueue:(dispatch_block_t)block;
@end