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• [FILE] index-chunk.js
• [FILE] index-chunk.js.map
• [FILE] index-chunk.mjs
• [FILE] index-chunk.mjs.map
• [FILE] index-chunk2.js
• [FILE] index-chunk2.js.map
• [FILE] index-chunk2.mjs
• [FILE] index-chunk2.mjs.map
• [FILE] thread-chunk.js
• [FILE] thread-chunk.js.map
• [FILE] thread-chunk.mjs
• [FILE] thread-chunk.mjs.map
• [FILE] thread-chunk2.js
• [FILE] thread-chunk2.js.map
• [FILE] thread-chunk2.mjs
• [FILE] thread-chunk2.mjs.map
• [FILE] thread-chunk3.js
• [FILE] thread-chunk3.js.map
• [FILE] thread-chunk3.mjs
• [FILE] thread-chunk3.mjs.map

Просмотр файла: index-chunk2.mjs.map

{"version":3,"file":"index-chunk2.mjs","sources":["../../src/threads/index.ts"],"sourcesContent":["import type { WorkerOptions } from 'node:worker_threads';\nimport { Worker, isMainThread, parentPort, SHARE_ENV } from 'node:worker_threads';\n\nconst port = parentPort!;\nif (!isMainThread && !port) {\n  throw new ReferenceError('Failed to receive parent message port');\n}\n\nconst enum MainMessageCodes {\n  Start = 'START',\n  Close = 'CLOSE',\n  Pull = 'PULL',\n}\n\ninterface MainMessage {\n  id?: number;\n  kind: MainMessageCodes;\n  data?: any;\n}\n\nconst enum ThreadMessageCodes {\n  Next = 'NEXT',\n  Throw = 'THROW',\n  Return = 'RETURN',\n}\n\ninterface ThreadMessage {\n  id?: number;\n  kind: ThreadMessageCodes;\n  data?: any;\n  extra?: Record<string, unknown>;\n}\n\nconst workerOpts: WorkerOptions = {\n  env: SHARE_ENV,\n  stderr: false,\n  stdout: false,\n  stdin: false,\n};\n\nconst getMessageData = (message: ThreadMessage) => {\n  const data = message.data;\n  if (message.kind === ThreadMessageCodes.Throw) {\n    return typeof data === 'object' && data && message.extra != null\n      ? 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(data as ThreadMessage) : null;\n      if (!message) {\n        return;\n      } else if (reject && message.kind === ThreadMessageCodes.Throw) {\n        reject(getMessageData(message));\n        cleanup();\n      } else if (resolve && message.kind === ThreadMessageCodes.Return) {\n        resolve({ done: true, value: getMessageData(message) });\n        cleanup();\n      } else if (resolve && message.kind === ThreadMessageCodes.Next) {\n        pulled = false;\n        resolve({ done: false, value: getMessageData(message) });\n      } else if (\n        message.kind === ThreadMessageCodes.Throw ||\n        message.kind === ThreadMessageCodes.Return\n      ) {\n        buffer.push(message);\n        cleanup();\n      } else if (message.kind === ThreadMessageCodes.Next) {\n        buffer.push(message);\n        pulled = false;\n      }\n    }\n\n    return {\n      async next() {\n        if (!started) {\n          started = true;\n          worker.addListener('message', receiveMessage);\n          worker.addListener('error', receiveError);\n          worker.postMessage({\n            id,\n            kind: MainMessageCodes.Start,\n            data: args,\n          });\n        }\n        if (ended && !buffer.length) {\n          return { done: true } as IteratorReturnResult<any>;\n        } else if (!ended && !pulled && buffer.length <= 1) {\n          pulled = true;\n          sendMessage(MainMessageCodes.Pull);\n        }\n        const message = buffer.shift();\n        if (message && message.kind === ThreadMessageCodes.Throw) {\n          cleanup();\n          throw getMessageData(message);\n        } else if (message && message.kind === ThreadMessageCodes.Return) {\n          cleanup();\n          return { value: getMessageData(message), done: true };\n        } else if (message && message.kind === ThreadMessageCodes.Next) {\n          return { value: getMessageData(message), done: false };\n        } else {\n          return new Promise((_resolve, _reject) => {\n            resolve = (value) => {\n              resolve = undefined;\n              reject = undefined;\n              _resolve(value);\n            };\n            reject = (error) => {\n              resolve = undefined;\n              reject = undefined;\n              _reject(error);\n            };\n          });\n        }\n      },\n      async return() {\n        if (!ended) {\n          cleanup();\n          sendMessage(MainMessageCodes.Close);\n        }\n        return { done: true } as IteratorReturnResult<any>;\n      },\n      [asyncIteratorSymbol()]() {\n        return this;\n      },\n    };\n  };\n}\n\nfunction thread<Args extends readonly any[], Next>(\n  message: MainMessage,\n  generator: Generator<Args, Next>\n): void {\n  if (message.kind !== MainMessageCodes.Start) return;\n  const id = message.id;\n  const iterator = generator(...(message.data as any));\n\n  let ended = false;\n  let pulled = false;\n  let looping = false;\n\n  function cleanup() {\n    ended = true;\n    port.removeListener('message', receiveMessage);\n  }\n\n  async function sendMessage(kind: ThreadMessageCodes, data?: any) {\n    try {\n      const message: ThreadMessage = { id, kind, data };\n      // NOTE: Copy error annotations to separate property\n      if (kind === ThreadMessageCodes.Throw && typeof data === 'object' && data != null)\n        message.extra = { ...data };\n      port.postMessage(message);\n    } catch (error) {\n      cleanup();\n      if (iterator.throw) {\n        let result = await iterator.throw();\n        if (result.done === false && iterator.return) {\n          result = await iterator.return();\n          sendMessage(ThreadMessageCodes.Return, result.value);\n        } else {\n          sendMessage(ThreadMessageCodes.Return, result.value);\n        }\n      } else {\n        sendMessage(ThreadMessageCodes.Return);\n      }\n    }\n  }\n\n  async function receiveMessage(data: unknown) {\n    const message: MainMessage | null =\n      data && typeof data === 'object' && 'kind' in data ? 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