next.js/packages/next/src/server/node-environment-extensions/utils.tsx

import { workAsyncStorage } from '../app-render/work-async-storage.external'
import {
  workUnitAsyncStorage,
  type PrerenderStoreModern,
} from '../app-render/work-unit-async-storage.external'
import {
  abortOnSynchronousPlatformIOAccess,
  trackSynchronousPlatformIOAccessInDev,
} from '../app-render/dynamic-rendering'
import { InvariantError } from '../../shared/lib/invariant-error'

type ApiType = 'time' | 'random' | 'crypto'

export function io(expression: string, type: ApiType) {
  const workUnitStore = workUnitAsyncStorage.getStore()
  const workStore = workAsyncStorage.getStore()

  if (!workUnitStore || !workStore) {
    return
  }

  switch (workUnitStore.type) {
    case 'prerender': {
      const prerenderSignal = workUnitStore.controller.signal

      if (prerenderSignal.aborted === false) {
        // If the prerender signal is already aborted we don't need to construct
        // any stacks because something else actually terminated the prerender.
        let message: string
        switch (type) {
          case 'time':
            message = `Route "${workStore.route}" used ${expression} instead of using \`performance\` or without explicitly calling \`await connection()\` beforehand. See more info here: https://nextjs.org/docs/messages/next-prerender-current-time`
            break
          case 'random':
            message = `Route "${workStore.route}" used ${expression} outside of \`"use cache"\` and without explicitly calling \`await connection()\` beforehand. See more info here: https://nextjs.org/docs/messages/next-prerender-random`
            break
          case 'crypto':
            message = `Route "${workStore.route}" used ${expression} outside of \`"use cache"\` and without explicitly calling \`await connection()\` beforehand. See more info here: https://nextjs.org/docs/messages/next-prerender-crypto`
            break
          default:
            throw new InvariantError(
              'Unknown expression type in abortOnSynchronousPlatformIOAccess.'
            )
        }

        abortOnSynchronousPlatformIOAccess(
          workStore.route,
          expression,
          applyOwnerStack(new Error(message), workUnitStore),
          workUnitStore
        )
      }
      break
    }
    case 'prerender-client': {
      const prerenderSignal = workUnitStore.controller.signal

      if (prerenderSignal.aborted === false) {
        // If the prerender signal is already aborted we don't need to construct
        // any stacks because something else actually terminated the prerender.
        let message: string
        switch (type) {
          case 'time':
            message = `Route "${workStore.route}" used ${expression} inside a Client Component without a Suspense boundary above it. See more info here: https://nextjs.org/docs/messages/next-prerender-current-time-client`
            break
          case 'random':
            message = `Route "${workStore.route}" used ${expression} inside a Client Component without a Suspense boundary above it. See more info here: https://nextjs.org/docs/messages/next-prerender-random-client`
            break
          case 'crypto':
            message = `Route "${workStore.route}" used ${expression} inside a Client Component without a Suspense boundary above it. See more info here: https://nextjs.org/docs/messages/next-prerender-crypto-client`
            break
          default:
            throw new InvariantError(
              'Unknown expression type in abortOnSynchronousPlatformIOAccess.'
            )
        }

        abortOnSynchronousPlatformIOAccess(
          workStore.route,
          expression,
          applyOwnerStack(new Error(message), workUnitStore),
          workUnitStore
        )
      }
      break
    }
    case 'request':
      if (workUnitStore.prerenderPhase === true) {
        trackSynchronousPlatformIOAccessInDev(workUnitStore)
      }
      break
    case 'prerender-ppr':
    case 'prerender-legacy':
    case 'cache':
    case 'private-cache':
    case 'unstable-cache':
      break
    default:
      workUnitStore satisfies never
  }
}

function applyOwnerStack(error: Error, workUnitStore: PrerenderStoreModern) {
  // TODO: Instead of stitching the stacks here, we should log the original
  // error as-is when it occurs, and let `patchErrorInspect` handle adding the
  // owner stack, instead of logging it deferred in the `LogSafely` component
  // via `throwIfDisallowedDynamic`.
  if (
    process.env.NODE_ENV !== 'production' &&
    workUnitStore.captureOwnerStack
  ) {
    const ownerStack = workUnitStore.captureOwnerStack()

    if (ownerStack) {
      let stack = ownerStack

      if (error.stack) {
        const frames: string[] = []

        for (const frame of error.stack.split('\n').slice(1)) {
          if (frame.includes('react_stack_bottom_frame')) {
            break
          }

          frames.push(frame)
        }

        stack = '\n' + frames.join('\n') + stack
      }

      error.stack = error.name + ': ' + error.message + stack
    }
  }

  return error
}