| 1 | /** |
| 2 | * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | * |
| 4 | * This source code is licensed under the MIT license found in the |
| 5 | * LICENSE file in the root directory of this source tree. |
| 6 | * |
| 7 | * @flow |
| 8 | */ |
| 9 | |
| 10 | import type {Fiber} from './ReactInternalTypes'; |
| 11 | |
| 12 | import {getStackByFiberInDevAndProd} from './ReactFiberComponentStack'; |
| 13 | |
| 14 | const CapturedStacks: WeakMap<any, CapturedValue<any>> = new WeakMap(); |
| 15 | |
| 16 | export type CapturedValue<+T> = { |
| 17 | +value: T, |
| 18 | source: Fiber | null, |
| 19 | stack: string | null, |
| 20 | }; |
| 21 | |
| 22 | export function createCapturedValueAtFiber<T>( |
| 23 | value: T, |
| 24 | source: Fiber, |
| 25 | ): CapturedValue<T> { |
| 26 | // If the value is an error, call this function immediately after it is thrown |
| 27 | // so the stack is accurate. |
| 28 | // $FlowFixMe[invalid-compare] |
| 29 | if (typeof value === 'object' && value !== null) { |
| 30 | const existing = CapturedStacks.get(value); |
| 31 | if (existing !== undefined) { |
| 32 | return existing; |
| 33 | } |
| 34 | const captured: CapturedValue<T> = { |
| 35 | value, |
| 36 | source, |
| 37 | stack: getStackByFiberInDevAndProd(source), |
| 38 | }; |
| 39 | CapturedStacks.set(value, captured); |
| 40 | return captured; |
| 41 | } else { |
| 42 | return { |
| 43 | value, |
| 44 | source, |
| 45 | stack: getStackByFiberInDevAndProd(source), |
| 46 | }; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | export function createCapturedValueFromError( |
| 51 | value: Error, |
| 52 | stack: null | string, |
| 53 | ): CapturedValue<Error> { |
| 54 | const captured: CapturedValue<Error> = { |
| 55 | value, |
| 56 | source: null, |
| 57 | stack: stack, |
| 58 | }; |
| 59 | if (typeof stack === 'string') { |
| 60 | CapturedStacks.set(value, captured); |
| 61 | } |
| 62 | return captured; |
| 63 | } |