/** * 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 */ import type {Fiber} from './ReactInternalTypes'; import { HostComponent, HostResource, HostSingleton, LazyComponent, SuspenseComponent, SuspenseListComponent, FunctionComponent, IndeterminateComponent, ForwardRef, SimpleMemoComponent, ClassComponent, } from './ReactWorkTags'; import { describeBuiltInComponentFrame, describeFunctionComponentFrame, describeClassComponentFrame, } from 'shared/ReactComponentStackFrame'; function describeFiber(fiber: Fiber): string { const owner: null | Function = __DEV__ ? fiber._debugOwner ? fiber._debugOwner.type : null : null; const source = __DEV__ ? fiber._debugSource : null; switch (fiber.tag) { case HostResource: case HostSingleton: case HostComponent: return describeBuiltInComponentFrame(fiber.type, source, owner); case LazyComponent: return describeBuiltInComponentFrame('Lazy', source, owner); case SuspenseComponent: return describeBuiltInComponentFrame('Suspense', source, owner); case SuspenseListComponent: return describeBuiltInComponentFrame('SuspenseList', source, owner); case FunctionComponent: case IndeterminateComponent: case SimpleMemoComponent: return describeFunctionComponentFrame(fiber.type, source, owner); case ForwardRef: return describeFunctionComponentFrame(fiber.type.render, source, owner); case ClassComponent: return describeClassComponentFrame(fiber.type, source, owner); default: return ''; } } export function getStackByFiberInDevAndProd(workInProgress: Fiber): string { try { let info = ''; let node: Fiber = workInProgress; do { info += describeFiber(node); // $FlowFixMe[incompatible-type] we bail out when we get a null node = node.return; } while (node); return info; } catch (x) { return '\nError generating stack: ' + x.message + '\n' + x.stack; } }