zecorn

library0.10.1jsnpmunverified

zecorn is a Babel-compatible transpiler built on acorn, version 0.10.1. It provides a babel plugin layer with strong source mapping, enabling reuse of existing Babel plugins. Developed for WMR but usable standalone. Unlike Babel, it uses acorn for parsing, offering lighter weight and faster transforms. Ships TypeScript types. Release cadence is sporadic; check GitHub for latest.

web-framework serialization

npm install zecorn

package ↗

INSTALL

IMPORT

SIG · ZECORN

zecorn

web-frameworkjavascriptv0.10.1

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

transform

✓ import { transform } from 'zecorn'

✗ const { transform } = require('zecorn')

ESM-only; CommonJS require is not supported.

parse

✓ import { parse } from 'zecorn'

✗ const parse = require('zecorn').parse

Default parse function; ESM-only.

acornPlugins

✓ import { acornPlugins } from 'zecorn'

Exported array of acorn plugins for custom parser setup.

Shows basic usage of transform with a custom Babel plugin replacing a numeric literal.

import { transform, parse } from 'zecorn'; function myBabelPlugin({ types: t }) { return { name: 'my-plugin', visitor: { NumericLiteral(path) { path.replaceWith(t.identifier('foobar')); }, }, }; } const result = transform('const a = 42', { parse, plugins: [myBabelPlugin], }); console.log(result.code); // 'const a = foobar;'

Debug

Known issues

breakingzecorn uses acorn for parsing, not Babel's parser. Some Babel plugins relying on Babel-specific AST types may not work.

fix

Use only plugins that are compatible with acorn AST or wrap them with acorn-specific adapters.

affects: >=0.1.0

gotchaThe 'parse' option in transform must provide a function with a specific signature. Using a custom parser without proper signature may cause errors.

fix

Ensure parse function accepts (code, opts) and returns an AST object compatible with acorn.

affects: >=0.1.0

deprecatedThis library is designed for WMR and may not receive frequent updates. Check for new releases before using in production.

fix

Monitor the repository for updates or consider using alternatives like Babel standalone.

affects: >=0.1.0

Errors

Common errors & fixes

Cannot find module 'zecorn'

zecorn not installed or not in node_modules.

fix

Run 'npm install -D zecorn' or 'yarn add -D zecorn'.

TypeError: (0 , zecorn.transform) is not a function

Incorrect import style; using require with ESM package.

fix

Use ES module import syntax: import { transform } from 'zecorn'

Error: The 'parse' option must be a function

Missing or incorrect parse function passed to transform.

fix

Ensure you pass a valid parse function, e.g., import { parse } from 'zecorn' and pass it as { parse }.

Upgrade

Version history

0.10.1latest on npm

Audit

Dependencies

acornrequiredCore parser dependency; zecorn uses acorn internally.

Agent activity

27 hits · last 30 days

node

OpenAI (training)

Resources

packagehttps://www.npmjs.com/package/zecorn ↗