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dash-ast

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dash-ast

walk an AST, quickly

  • 2.0.1
  • latest
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  • npm
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decreased by-3.76%
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dash-ast

walk an AST, quickly

npm travis standard

Install

npm install dash-ast

Usage

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])
  }
})

API

dashAst(ast, callback)

Call callback(node, parent) on each node in ast. This does a preorder traversal, i.e. callback receives child nodes after the parent node.

dashAst(ast, { enter, leave })

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.

License

Apache-2.0

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Package last updated on 11 Mar 2020

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