Registry / devops / babel-plugin-recast

babel-plugin-recast

library0.2.0jsnpmunverified

Babel plugin (v0.2.0, stable) that integrates recast's AST parsing and code generation to preserve original formatting during Babel transformations, ideal for codemods. Unlike standard Babel plugins that discard formatting, it uses undocumented parserOverride/generatorOverride hooks to maintain whitespace and style. Requires peer dependency recast 0.x. Light maintenance, release cadence is minimal.

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npm install babel-plugin-recast

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INSTALL

IMPORT

SIG · BABEL-PLUGIN-RECAS

babel-plugin-recast

devopsjavascriptv0.2.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

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

babel-plugin-recast

✓ module.exports = { plugins: ['babel-plugin-recast'] };

✗ import plugin from 'babel-plugin-recast'; // Not a JS module

Used as a Babel plugin name string in config, not a direct import.

parserOverride

✓ plugins: [['babel-plugin-recast', { parserOverride: otherPlugin.parserOverride }]]

✗ plugins: ['babel-plugin-recast', { parserOverride: ... }] // Options must be paired with plugin name in array

Options are passed as the second element of an array in Babel config.

generatorOverride

✓ Not directly exposed; recast handles it internally.

✗ Setting generatorOverride in plugin options

generatorOverride is not configurable via this plugin.

Basic Babel config enabling babel-plugin-recast to preserve formatting.

// babel.config.js module.exports = function (api) { api.cache(true); return { plugins: ['babel-plugin-recast'] }; }; // Run: npx babel input.js --out-file output.js --config-file babel.config.js

Debug

Known issues

gotchaOnly one plugin can override parsing. Chaining with other parser overrides is possible but untested.

fix

If you have another parser override, pass it via options: { parserOverride: otherPlugin.parserOverride }.

affects: >=0.0.0

gotchaRecast's source mapping replaces Babel's; may cause unexpected behavior in source maps.

fix

Test source maps after transformation if they are critical.

affects: >=0.0.0

breakingPeer dependency recast must be 0.x; breaking changes may occur if recast major version updates.

fix

Pin recast to 0.x in your package.json.

affects: >=0.0.0

gotchaUndocumented hooks parserOverride and generatorOverride may break in future Babel versions.

fix

Monitor Babel release notes for changes to these hooks.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Plugin babel-plugin-recast not found

Missing or incorrectly installed package.

fix

Run npm install --save-dev babel-plugin-recast

Cannot find module 'recast'

Missing peer dependency recast.

fix

Run npm install recast@0.x

Multiple parser overrides found

Another plugin also overrides parsing without chaining.

fix

Chain parserOverrides by passing the other plugin's override via options.

Upgrade

Version history

0.2.0latest on npm

Audit

Dependencies

recastrequiredPeer dependency required for AST manipulation and formatting preservation

Agent activity

21 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/conartist6/babel-plugin-recast ↗

packagehttps://www.npmjs.com/package/babel-plugin-recast ↗