114 lines
4.6 KiB
Plaintext
114 lines
4.6 KiB
Plaintext
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "RCTJSCWrapper.h"
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#import <UIKit/UIKit.h>
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#import <JavaScriptCore/JavaScriptCore.h>
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#import "RCTLog.h"
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#include <dlfcn.h>
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void __attribute__((visibility("hidden"),weak)) RCTCustomJSCInit(__unused void *handle) {
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return;
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}
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static void *RCTCustomLibraryHandler(void)
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{
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static dispatch_once_t token;
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static void *handler;
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dispatch_once(&token, ^{
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handler = dlopen("@executable_path/Frameworks/JSC.framework/JSC", RTLD_LAZY | RTLD_LOCAL);
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if (!handler) {
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const char *err = dlerror();
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// Ignore the dlopen failure if custom JSC wasn't included in our app
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// bundle. Unfortunately dlopen only provides string based errors.
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if (err != nullptr && strstr(err, "image not found") == nullptr) {
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RCTLogWarn(@"Can't load custom JSC library: %s", err);
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}
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}
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});
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return handler;
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}
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static void RCTSetUpSystemLibraryPointers(RCTJSCWrapper *wrapper)
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{
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wrapper->JSStringCreateWithCFString = JSStringCreateWithCFString;
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wrapper->JSStringCreateWithUTF8CString = JSStringCreateWithUTF8CString;
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wrapper->JSStringRelease = JSStringRelease;
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wrapper->JSGlobalContextSetName = JSGlobalContextSetName;
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wrapper->JSObjectSetProperty = JSObjectSetProperty;
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wrapper->JSContextGetGlobalObject = JSContextGetGlobalObject;
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wrapper->JSObjectGetProperty = JSObjectGetProperty;
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wrapper->JSValueMakeFromJSONString = JSValueMakeFromJSONString;
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wrapper->JSObjectCallAsFunction = JSObjectCallAsFunction;
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wrapper->JSValueMakeNull = JSValueMakeNull;
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wrapper->JSValueCreateJSONString = JSValueCreateJSONString;
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wrapper->JSValueIsUndefined = JSValueIsUndefined;
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wrapper->JSValueIsNull = JSValueIsNull;
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wrapper->JSEvaluateScript = JSEvaluateScript;
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wrapper->JSContext = [JSContext class];
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wrapper->JSValue = [JSValue class];
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wrapper->configureJSContextForIOS = NULL;
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}
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static void RCTSetUpCustomLibraryPointers(RCTJSCWrapper *wrapper)
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{
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void *libraryHandle = RCTCustomLibraryHandler();
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if (!libraryHandle) {
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RCTSetUpSystemLibraryPointers(wrapper);
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return;
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}
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wrapper->JSStringCreateWithCFString = (JSStringCreateWithCFStringFuncType)dlsym(libraryHandle, "JSStringCreateWithCFString");
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wrapper->JSStringCreateWithUTF8CString = (JSStringCreateWithUTF8CStringFuncType)dlsym(libraryHandle, "JSStringCreateWithUTF8CString");
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wrapper->JSStringRelease = (JSStringReleaseFuncType)dlsym(libraryHandle, "JSStringRelease");
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wrapper->JSGlobalContextSetName = (JSGlobalContextSetNameFuncType)dlsym(libraryHandle, "JSGlobalContextSetName");
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wrapper->JSObjectSetProperty = (JSObjectSetPropertyFuncType)dlsym(libraryHandle, "JSObjectSetProperty");
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wrapper->JSContextGetGlobalObject = (JSContextGetGlobalObjectFuncType)dlsym(libraryHandle, "JSContextGetGlobalObject");
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wrapper->JSObjectGetProperty = (JSObjectGetPropertyFuncType)dlsym(libraryHandle, "JSObjectGetProperty");
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wrapper->JSValueMakeFromJSONString = (JSValueMakeFromJSONStringFuncType)dlsym(libraryHandle, "JSValueMakeFromJSONString");
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wrapper->JSObjectCallAsFunction = (JSObjectCallAsFunctionFuncType)dlsym(libraryHandle, "JSObjectCallAsFunction");
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wrapper->JSValueMakeNull = (JSValueMakeNullFuncType)dlsym(libraryHandle, "JSValueMakeNull");
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wrapper->JSValueCreateJSONString = (JSValueCreateJSONStringFuncType)dlsym(libraryHandle, "JSValueCreateJSONString");
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wrapper->JSValueIsUndefined = (JSValueIsUndefinedFuncType)dlsym(libraryHandle, "JSValueIsUndefined");
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wrapper->JSValueIsNull = (JSValueIsNullFuncType)dlsym(libraryHandle, "JSValueIsNull");
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wrapper->JSEvaluateScript = (JSEvaluateScriptFuncType)dlsym(libraryHandle, "JSEvaluateScript");
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wrapper->JSContext = (__bridge Class)dlsym(libraryHandle, "OBJC_CLASS_$_JSContext");
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wrapper->JSValue = (__bridge Class)dlsym(libraryHandle, "OBJC_CLASS_$_JSValue");
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wrapper->configureJSContextForIOS = (configureJSContextForIOSFuncType)dlsym(libraryHandle, "configureJSContextForIOS");
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static dispatch_once_t once;
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dispatch_once(&once, ^{
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RCTCustomJSCInit(libraryHandle);
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});
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}
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RCTJSCWrapper *RCTJSCWrapperCreate(BOOL useCustomJSC)
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{
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RCTJSCWrapper *wrapper = (RCTJSCWrapper *)malloc(sizeof(RCTJSCWrapper));
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if (useCustomJSC) {
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RCTSetUpCustomLibraryPointers(wrapper);
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} else {
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RCTSetUpSystemLibraryPointers(wrapper);
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}
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return wrapper;
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}
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void RCTJSCWrapperRelease(RCTJSCWrapper *wrapper)
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{
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if (wrapper) {
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free(wrapper);
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}
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}
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