react-native/React/CxxBridge/RCTJSCHelpers.mm

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/**
* 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.
*/
#include "RCTJSCHelpers.h"
#import <Foundation/Foundation.h>
#import <React/RCTBridge+Private.h>
#import <React/RCTCxxUtils.h>
#import <React/RCTLog.h>
#import <cxxreact/Platform.h>
#import <jschelpers/Value.h>
using namespace facebook::react;
namespace {
JSValueRef nativeLoggingHook(
JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount,
const JSValueRef arguments[], JSValueRef *exception) {
RCTLogLevel level = RCTLogLevelInfo;
if (argumentCount > 1) {
level = MAX(level, (RCTLogLevel)Value(ctx, arguments[1]).asNumber());
}
if (argumentCount > 0) {
JSContext *contextObj = contextForGlobalContextRef(JSC_JSContextGetGlobalContext(ctx));
JSValue *msg = [JSC_JSValue(ctx) valueWithJSValueRef:arguments[0] inContext:contextObj];
_RCTLogJavaScriptInternal(level, [msg toString]);
}
return Value::makeUndefined(ctx);
}
JSValueRef nativePerformanceNow(
JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount,
const JSValueRef arguments[], JSValueRef *exception) {
return Value::makeNumber(ctx, CACurrentMediaTime() * 1000);
}
}
void RCTPrepareJSCExecutor() {
ReactMarker::logTaggedMarker = [](const ReactMarker::ReactMarkerId, const char *tag) {};
JSCNativeHooks::loggingHook = nativeLoggingHook;
JSCNativeHooks::nowHook = nativePerformanceNow;
JSCNativeHooks::installPerfHooks = RCTFBQuickPerformanceLoggerConfigureHooks;
}