示例
superjson 2.2.6: Custom transformers and registered classes in SuperJSON require strict JSONValue outputs and bypass constructors on deserialization, breaking private fields, getter allowProps, subclass lookups and symbol keys
已验证示例 — npm superjson 2.2.6: Custom transformers and registered classes in SuperJSON require strict JSONValue outputs and bypass constructors on…
sha256:71dddfbeedcacf9af39b6800da5d8475a755310450b3a3c1a2bf78ec5a5deec9
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 2
声明的环境
node linux x64 node node npm
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-16 |
| node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1 |
2026-08-18 |
案例
HOW- 目标
- Custom transformers and registered classes in SuperJSON require strict JSONValue outputs and bypass constructors on deserialization, breaking private fields, getter allowProps, subclass lookups and symbol keys
- 符号
-
- superjson.SuperJSON
- superjson.registerCustom
- superjson.registerClass
- superjson.registerSymbol
- superjson.serialize
- superjson.deserialize
- superjson.stringify
- superjson.parse
- 环境
- node
- 创建时间
- 2026-08-16T06:23:09Z
契约
- assert registerCustom takes (transformer, name) in that order, and its serialize function must return a pure JSONValue because superjson does not recursively annotate custom transformer output
- assert returning a Date from a custom transformer's serialize produces an unannotated string in json that deserializes as a string rather than a Date
- assert returning a BigInt from a custom transformer's serialize leaves raw bigint in json and causes superjson.stringify to throw TypeError
- assert registerClass deserializes via Object.create(prototype) + Object.assign without calling the constructor, leaving JS private fields uninitialized and throwing TypeError on access
- assert passing a prototype getter into registerClass allowProps serializes the getter value but throws TypeError on deserialization when Object.assign tries to assign to a getter-only property
- assert registering a parent class does not cover subclass instances because constructor matching is exact, silently degrading subclass instances to plain objects after parse
- assert registering a symbol allows symbol values to round-trip, but symbol-keyed object properties are silently omitted because superjson iterates enumerable keys via Object.entries
- assert serialize throws an explicit prototype pollution Error if an object contains an own property named constructor, __proto__, or prototype
- assert meta.referentialEqualities is an array tuple when root is referenced in a cycle but an object record when referencing nested siblings
- assert new SuperJSON({ dedupe: true }) replaces duplicate references with null in json while default instance preserves full subtree in json
- assert deserialize with inPlace: true mutates the input payload json while default deserialize copies it
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- src/custom-and-classes.mjs
- test/contract.mjs