DevToolsComponentStackFrame.js — react Source File

Source Code

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

// This is a DevTools fork of ReactComponentStackFrame.
// This fork enables DevTools to use the same "native" component stack format,
// while still maintaining support for multiple renderer versions
// (which use different values for ReactTypeOfWork).

import type {CurrentDispatcherRef} from '../types';

// The shared console patching code is DEV-only.
// We can't use it since DevTools only ships production builds.
import {disableLogs, reenableLogs} from './DevToolsConsolePatching';

let prefix;
export function describeBuiltInComponentFrame(name: string): string {
  if (prefix === undefined) {
    // Extract the VM specific prefix used by each line.
    try {
      throw Error();
    } catch (x) {
      const match = x.stack.trim().match(/\n( *(at )?)/);
      prefix = (match && match[1]) || '';
    }
  }
  let suffix = '';
  if (__IS_CHROME__ || __IS_EDGE__ || __IS_NATIVE__) {
    suffix = ' (<anonymous>)';
  } else if (__IS_FIREFOX__) {
    suffix = '@unknown:0:0';
  }
  // We use the prefix to ensure our stacks line up with native stack frames.
  // We use a suffix to ensure it gets parsed natively.
  return '\n' + prefix + name + suffix;
}

export function describeDebugInfoFrame(name: string, env: ?string): string {
  return describeBuiltInComponentFrame(name + (env ? ' [' + env + ']' : ''));
}

let reentry = false;
let componentFrameCache;
if (__DEV__) {
  const PossiblyWeakMap = typeof WeakMap === 'function' ? WeakMap : Map;
  componentFrameCache = new PossiblyWeakMap<$FlowFixMe, string>();
}

export function describeNativeComponentFrame(
  fn: Function,
  construct: boolean,
  currentDispatcherRef: CurrentDispatcherRef,
): string {
  // If something asked for a stack inside a fake render, it should get ignored.
  if (!fn || reentry) {
// ... (232 more lines)