63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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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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* @flow
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*/
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// Helpers to patch console.logs to avoid logging during side-effect free
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// replaying on render function. This currently only patches the object
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// lazily which won't cover if the log function was extracted eagerly.
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// We could also eagerly patch the method.
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let disabledDepth = 0;
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let prevLog;
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let prevInfo;
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let prevWarn;
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let prevError;
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function disabledLog() {}
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disabledLog.__reactDisabledLog = true;
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export function disableLogs(): void {
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if (__DEV__) {
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if (disabledDepth === 0) {
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/* eslint-disable react-internal/no-production-logging */
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prevLog = console.log;
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prevInfo = console.info;
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prevWarn = console.warn;
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prevError = console.error;
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// $FlowFixMe Flow thinks console is immutable.
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console.log = console.info = console.warn = console.error = disabledLog;
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/* eslint-enable react-internal/no-production-logging */
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}
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disabledDepth++;
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}
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}
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export function reenableLogs(): void {
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if (__DEV__) {
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disabledDepth--;
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if (disabledDepth === 0) {
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/* eslint-disable react-internal/no-production-logging */
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// $FlowFixMe Flow thinks console is immutable.
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console.log = prevLog;
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// $FlowFixMe Flow thinks console is immutable.
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console.info = prevInfo;
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// $FlowFixMe Flow thinks console is immutable.
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console.warn = prevWarn;
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// $FlowFixMe Flow thinks console is immutable.
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console.error = prevError;
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/* eslint-enable react-internal/no-production-logging */
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}
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if (disabledDepth < 0) {
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console.error(
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'disabledDepth fell below zero. ' +
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'This is a bug in React. Please file an issue.',
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);
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}
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}
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}
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