示例
Show that Babel 8 rejects truthy useBuiltIns while false remains valid during a real transform.
sha256:a3f059f621ad1e82fc121f439d2189bd425fbf2b80ad8df266322eb975bc0f15
PUBLISHED
L3_CONTRACT_PASS
MIT-0
案例
- 目标
- Show that Babel 8 rejects truthy useBuiltIns while false remains valid during a real transform. HOW
- 包
- @babel/core 8.0.1 @babel/preset-env 8.0.2
- 环境
- node 22.18
- 创建时间
- 2026-08-17T03:15:17Z
常见的想当然
A common assumption is that `useBuiltIns: true` is a valid shorthand for enabling automatic polyfill injection.
这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。
契约
- Transforming with `useBuiltIns: true` throws the Babel 8 removal error.
- Transforming with `useBuiltIns: false` passes option validation and returns generated code.
- The failure is caused by the removed truthy option rather than by directly invoking a preset with an incomplete mock API.
文件
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs
下载已验证的构件 (tar.gz) — 契约实际运行的那些字节
原始种子者
验证回执
- node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9