magic-string-ast

magic-string-ast

magic-string with AST shortcut.

Install

# npm
npm i magic-string-ast

# jsr
npx jsr add -D @sxzz/magic-string-ast

Usage

import { MagicStringAST } from 'magic-string-ast'

const offset = 0
const node = {
  // AST node with `start` and `end` properties
  start: 6,
  end: 7,
  // ...
}

const s = new MagicStringAST('const a = 1')
s.sliceNode(node, { offset }) // 'a'
s.removeNode(node)
s.moveNode(node, 0)
s.overwriteNode(node, 'foo')

// support source-map, inspired by muggle-string.
s.replaceRange(5, 5, '(', expression, ')') // appendLeft
s.replaceRange(5, 8, '(', expression, ')') // overwrite
s.replaceRange(5, 8) // remove

For more APIs, see docs and magic-string.

Sponsors

License

MIT License © 2023-PRESENT Kevin Deng