Function describeFiber

packages/react-reconciler/src/ReactFiberComponentStack.js:37–71

(fiber: Fiber, childFiber: null | Fiber)

import {formatOwnerStack} from 'shared/ReactOwnerStackFrames';

function describeFiber(fiber: Fiber, childFiber: null | Fiber): string {
  switch (fiber.tag) {
    case HostHoistable:
    case HostSingleton:
    case HostComponent:
      return describeBuiltInComponentFrame(fiber.type);
    case LazyComponent:
      // TODO: When we support Thenables as component types we should rename this.
      return describeBuiltInComponentFrame('Lazy');
    case SuspenseComponent:
      if (fiber.child !== childFiber && childFiber !== null) {
        // If we came from the second Fiber then we're in the Suspense Fallback.
        return describeBuiltInComponentFrame('Suspense Fallback');
      }
      return describeBuiltInComponentFrame('Suspense');
    case SuspenseListComponent:
      return describeBuiltInComponentFrame('SuspenseList');
    case FunctionComponent:
    case SimpleMemoComponent:
      return describeFunctionComponentFrame(fiber.type);
    case ForwardRef:
      return describeFunctionComponentFrame(fiber.type.render);
    case ClassComponent:
      return describeClassComponentFrame(fiber.type);
    case ActivityComponent:
      return describeBuiltInComponentFrame('Activity');
    case ViewTransitionComponent:
      if (enableViewTransition) {
        return describeBuiltInComponentFrame('ViewTransition');
      }
    // Fallthrough
    default:
      return '';
  }
}

export function getStackByFiberInDevAndProd(workInProgress: Fiber): string {
  try {