walk an AST, quickly
npm install dash-astwalk an AST, quickly
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[npm-image]: https://img.shields.io/npm/v/dash-ast.svg?style=flat-square
[npm-url]: https://www.npmjs.com/package/dash-ast
[travis-image]: https://img.shields.io/travis/goto-bus-stop/dash-ast.svg?style=flat-square
[travis-url]: https://travis-ci.org/goto-bus-stop/dash-ast
[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square
[standard-url]: http://npm.im/standard
``
npm install dash-ast
`js
var dashAst = require('dash-ast')
var isIdentifier = require('estree-is-identifier')
var deps = []
dashAst(ast, function (node, parent) {
if (node.type === 'CallExpression' && isIdentifier(node.callee, 'require')) {
deps.push(node.arguments[0])
}
})
`
Call callback(node, parent) on each node in ast. This does a preorder traversal, i.e. callback receives child nodes _after_ the parent node.
Call enter(node, parent) on each node in ast before traversing its children, and call leave(enter, parent) on each node _after_ traversing its children. If a node does not have children, enter() and leave()` are called immediately after each other.