示例

Prevent silent loss of AST modifications and missing AST results in @babel/core transformFromAstSync

sha256:9843a6619f29d4771b0ea7422ee91f41aed92d821140d6e877a16dc292949c9e

案例

目标

Prevent silent loss of AST modifications and missing AST results in @babel/core transformFromAstSync HOW

包

@babel/core 8.0.1

环境

node

创建时间

2026-08-17T01:44:28Z

常见的想当然

transformFromAstSync modifies the provided AST object in place during traversal and populates result.ast with the transformed tree.

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

• transformFromAstSync preserves the input AST node unmodified and sets result.ast to null unless cloneInputAst is set to false and ast is set to true.
• inputAst.program.body[0].kind remains 'let' when cloneInputAst defaults to true
• defaultResult.ast is strictly null on default invocations
• cloneInputAst: false mutates the passed AST in place, changing kind to 'const'
• explicitResult.ast returns the root File AST node only when options.ast is explicitly true

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

csx-seed

验证回执

• node 22 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9