示例

Parse JavaScript code synchronously with babel.parseSync, observing root File AST structure, default module sourceType, configuration ignore handling, and parser options.

sha256:1508c188da6beca4aa3fdac74986d3392f5ba893babb9bb7928de9a5b045f6e4

案例

目标

Parse JavaScript code synchronously with babel.parseSync, observing root File AST structure, default module sourceType, configuration ignore handling, and parser options. HOW

包

@babel/core 7.24.0

环境

node

创建时间

2026-08-18T00:40:05Z

常见的想当然

babel.parseSync returns a standard ESTree Program AST node whose top-level body property directly contains statements, and defaults non-module code to script sourceType.

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

• babel.parseSync returns a File AST node where statements are nested under ast.program.body while root ast.body is undefined, and defaults ast.program.sourceType to module.
• babel.parseSync returns null when the input filename matches an ignore pattern in options.
• babel.parseSync with sourceType unambiguous parses import declarations as module and plain statements as script.
• babel.parseSync accepts parserOpts plugins such as jsx to parse syntax extensions synchronously without transformation plugins.
• babel.parseSync omits token arrays by default but populates ast.tokens including an eof token when parserOpts.tokens is true.
• babel.parseSync throws a SyntaxError with code BABEL_PARSE_ERROR and location metadata on invalid syntax.

文件

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-18 · ed25519:d91480838ac982c9