55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
/**
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* Copyright (c) 2015-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @providesModule RCTLog
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* @flow
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*/
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'use strict';
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const invariant = require('fbjs/lib/invariant');
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const levelsMap = {
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log: 'log',
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info: 'info',
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warn: 'warn',
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error: 'error',
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fatal: 'error',
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};
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let warningHandler: ?(Array<any> => void) = null;
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const RCTLog = {
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// level one of log, info, warn, error, mustfix
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logIfNoNativeHook(level: string, ...args: Array<any>): void {
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// We already printed in the native console, so only log here if using a js debugger
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if (typeof global.nativeLoggingHook === 'undefined') {
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RCTLog.logToConsole(level, ...args);
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} else {
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// Report native warnings to YellowBox
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if (warningHandler && level === 'warn') {
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warningHandler(...args);
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}
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}
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},
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// Log to console regardless of nativeLoggingHook
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logToConsole(level: string, ...args: Array<any>): void {
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const logFn = levelsMap[level];
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invariant(
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logFn,
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'Level "' + level + '" not one of ' + Object.keys(levelsMap).toString()
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);
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console[logFn](...args);
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},
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setWarningHandler(handler: typeof warningHandler): void {
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warningHandler = handler;
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}
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};
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module.exports = RCTLog;
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