{"version":3,"file":"instrumentDurableObjectNamespace.js","sources":["../../../src/instrumentations/instrumentDurableObjectNamespace.ts"],"sourcesContent":["import type { DurableObjectNamespace, DurableObjectStub } from '@cloudflare/workers-types';\nimport { appendRpcMeta } from '../utils/rpcMeta';\nimport { instrumentFetcher } from './worker/instrumentFetcher';\n\n// Built-in DurableObjectStub methods that are not RPC calls.\nexport const STUB_NON_RPC_METHODS = new Set(['fetch', 'connect', 'dup']);\n\n/**\n * Instruments a DurableObjectNamespace binding to create spans for DO interactions.\n *\n * Wraps:\n * - `namespace.get(id)` / `namespace.getByName(name)` with a span + instruments returned stub\n * - `namespace.idFromName(name)` / `namespace.idFromString(id)` / `namespace.newUniqueId()` with breadcrumbs\n *\n * @param namespace - The DurableObjectNamespace to instrument\n */\nexport function instrumentDurableObjectNamespace(namespace: DurableObjectNamespace): DurableObjectNamespace {\n  return new Proxy(namespace, {\n    get(target, prop, _receiver) {\n      const value = Reflect.get(target, prop) as unknown;\n\n      if (typeof value !== 'function') {\n        return value;\n      }\n\n      if (prop === 'get' || prop === 'getByName') {\n        return function (this: unknown, ...args: unknown[]) {\n          const stub = Reflect.apply(value, target, args);\n\n          return instrumentDurableObjectStub(stub);\n        };\n      }\n\n      return value.bind(target);\n    },\n  });\n}\n\n/**\n * Instruments a DurableObjectStub to create spans for outgoing fetch calls\n * and propagate trace context across RPC calls.\n *\n * @param stub - The DurableObjectStub to instrument\n */\nfunction instrumentDurableObjectStub(stub: DurableObjectStub): DurableObjectStub {\n  return new Proxy(stub, {\n    get(target, prop) {\n      const value = Reflect.get(target, prop);\n\n      if (prop === 'fetch' && typeof value === 'function') {\n        return instrumentFetcher((...args) => Reflect.apply(value, target, args));\n      }\n\n      if (typeof value === 'function' && typeof prop === 'string' && !STUB_NON_RPC_METHODS.has(prop)) {\n        return (...args: unknown[]) => Reflect.apply(value, target, appendRpcMeta(args));\n      }\n\n      return value;\n    },\n  });\n}\n"],"names":[],"mappings":";;;AAKO,MAAM,uCAAuB,IAAI,GAAA,CAAI,CAAC,OAAA,EAAS,SAAA,EAAW,KAAK,CAAC;AAWhE,SAAS,iCAAiC,SAAA,EAA2D;AAC1G,EAAA,OAAO,IAAI,MAAM,SAAA,EAAW;AAAA,IAC1B,GAAA,CAAI,MAAA,EAAQ,IAAA,EAAM,SAAA,EAAW;AAC3B,MAAA,MAAM,KAAA,GAAQ,OAAA,CAAQ,GAAA,CAAI,MAAA,EAAQ,IAAI,CAAA;AAEtC,MAAA,IAAI,OAAO,UAAU,UAAA,EAAY;AAC/B,QAAA,OAAO,KAAA;AAAA,MACT;AAEA,MAAA,IAAI,IAAA,KAAS,KAAA,IAAS,IAAA,KAAS,WAAA,EAAa;AAC1C,QAAA,OAAO,YAA4B,IAAA,EAAiB;AAClD,UAAA,MAAM,IAAA,GAAO,OAAA,CAAQ,KAAA,CAAM,KAAA,EAAO,QAAQ,IAAI,CAAA;AAE9C,UAAA,OAAO,4BAA4B,IAAI,CAAA;AAAA,QACzC,CAAA;AAAA,MACF;AAEA,MAAA,OAAO,KAAA,CAAM,KAAK,MAAM,CAAA;AAAA,IAC1B;AAAA,GACD,CAAA;AACH;AAQA,SAAS,4BAA4B,IAAA,EAA4C;AAC/E,EAAA,OAAO,IAAI,MAAM,IAAA,EAAM;AAAA,IACrB,GAAA,CAAI,QAAQ,IAAA,EAAM;AAChB,MAAA,MAAM,KAAA,GAAQ,OAAA,CAAQ,GAAA,CAAI,MAAA,EAAQ,IAAI,CAAA;AAEtC,MAAA,IAAI,IAAA,KAAS,OAAA,IAAW,OAAO,KAAA,KAAU,UAAA,EAAY;AACnD,QAAA,OAAO,iBAAA,CAAkB,IAAI,IAAA,KAAS,OAAA,CAAQ,MAAM,KAAA,EAAO,MAAA,EAAQ,IAAI,CAAC,CAAA;AAAA,MAC1E;AAEA,MAAA,IAAI,OAAO,KAAA,KAAU,UAAA,IAAc,OAAO,IAAA,KAAS,YAAY,CAAC,oBAAA,CAAqB,GAAA,CAAI,IAAI,CAAA,EAAG;AAC9F,QAAA,OAAO,CAAA,GAAI,SAAoB,OAAA,CAAQ,KAAA,CAAM,OAAO,MAAA,EAAQ,aAAA,CAAc,IAAI,CAAC,CAAA;AAAA,MACjF;AAEA,MAAA,OAAO,KAAA;AAAA,IACT;AAAA,GACD,CAAA;AACH;;;;"}