https://github.com/hughsk/ast-parents

Walks a JavaScript AST and adds a "parent" property to each node
https://github.com/hughsk/ast-parents

Last synced: 12 days ago
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Walks a JavaScript AST and adds a "parent" property to each node

• Host: GitHub
• URL: https://github.com/hughsk/ast-parents
• Owner: hughsk
• License: mit
• Created: 2014-02-04T09:03:47.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2014-02-04T09:16:37.000Z (almost 11 years ago)
• Last Synced: 2024-10-17T16:41:04.647Z (22 days ago)
• Language: JavaScript
• Size: 113 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# ast-parents [![Flattr this!](https://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=hughskennedy&url=http://github.com/hughsk/ast-parents&title=ast-parents&description=hughsk/ast-parents%20on%20GitHub&language=en_GB&tags=flattr,github,javascript&category=software)[![experimental](http://hughsk.github.io/stability-badges/dist/experimental.svg)](http://github.com/hughsk/stability-badges) #

Walks a JavaScript AST, such as one supplied via

[esprima](http://github.com/ariya/esprima), and adds a `parent`

property to each node.

Makes it much easier to navigate the AST, and the `parent` properties

added here are non-enumerable so you can still serialize the tree to JSON

without `JSON.stringify` throwing an error.

## Usage ##

[![ast-parents](https://nodei.co/npm/ast-parents.png?mini=true)](https://nodei.co/npm/ast-parents)

`require('ast-parents')(ast)`

Where `ast` is an AST object. For example:

``` javascript

var esprima = require('esprima')

var fs = require('fs')

var src = fs.readFileSync(__filename, 'utf8')

var ast = esprima.parse(src)

parents(ast)

ast.body[0].parent === ast.body

```

## License ##

MIT. See [LICENSE.md](http://github.com/hughsk/ast-parents/blob/master/LICENSE.md) for details.