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acorn-typescript

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acorn-typescript

Alternative, TypeScript parser

  • 1.4.13
  • latest
  • Source
  • npm
  • Socket score

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385K
increased by6.85%
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acorn-typescript

npm versionCoverage Status

This is plugin for Acorn - a tiny, fast JavaScript parser, written completely in JavaScript.

It was created as an experimental alternative, faster TypeScript parser. It will help you to parse typescript script into typeScript AST.

Usage

Requiring this module provides you with an Acorn plugin that you can use like this:

import * as acorn from 'acorn'
import tsPlugin from 'acorn-typescript'

/*
*
* */
const node = acorn.Parser.extend(tsPlugin()).parse(`
const a = 1
type A = number
export {
  a,
  type A as B
}
`, {
  sourceType: 'module',
  ecmaVersion: 'latest',
  locations: true
})

If you want to enable parsing within a TypeScript ambient context, where certain syntax have different rules (like .d.ts files and inside declare module blocks).

import * as acorn from 'acorn'
import tsPlugin from 'acorn-typescript'

/*
*
* */
const node = acorn.Parser.extend(tsPlugin({ dts: true })).parse(`
const a = 1
type A = number
export {
  a,
  type A as B
}
`, {
  sourceType: 'module',
  ecmaVersion: 'latest',
  locations: true
})

Notice

  • You have to enable options.locations while using acorn-typescript
acorn.parse(input, {
    sourceType: 'module',
    ecmaVersion: 'latest',
    // here
    locations: true
  })

SUPPORTED

  • Typescript normal syntax
  • Support to parse TypeScript Decorators
  • Support to parse JSX & TSX

CHANGELOG

click

RoadMap

  • support import-assertions

License

MIT

FAQs

Package last updated on 03 Jan 2024

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