init

node_modules/dash-ast/.travis.yml

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+language: node_js
+sudo: false
+node_js:
+  - 10
+  - 8
+  - 6
+  - 4

node_modules/dash-ast/CHANGELOG.md

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+# dash-ast change log
+
+All notable changes to this project will be documented in this file.
+
+This project adheres to [Semantic Versioning](http://semver.org/).
+
+## 1.0.0
+* Initial release.

node_modules/dash-ast/LICENSE.md

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+# [Apache License 2.0](https://spdx.org/licenses/Apache-2.0)
+
+Copyright 2018 Renée Kooi <renee@kooi.me>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+> http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.

node_modules/dash-ast/README.md

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+# dash-ast
+
+walk an AST, quickly
+
+[![npm][npm-image]][npm-url]
+[![travis][travis-image]][travis-url]
+[![standard][standard-image]][standard-url]
+
+[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
+
+## Install
+
+```
+npm install dash-ast
+```
+
+## Usage
+
+```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])
+  }
+})
+```
+
+## 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.
+
+### `dashAst.withParent(ast, callback)`
+
+Call `callback(node)` on each node in `ast`. This does a preorder traversal, i.e. `callback` receives child nodes _after_ the parent node.
+Each `node` has an additional property `node.parent` referring to the parent node.
+
+### `dashAst.withParent(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.
+Each `node` has an additional property `node.parent` referring to the parent node.
+
+## License
+
+[Apache-2.0](LICENSE.md)

node_modules/dash-ast/bench/index.js

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+var bench = require('nanobench')
+var src = require('fs').readFileSync(require.resolve('acorn'))
+var parse = require('acorn').parse
+var astw = require('astw')
+var eswalk = require('estree-walk')
+var eswalker = require('estree-walker')
+var dash = require('../')
+
+bench('astw', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  astw(ast)(function (node) { i++ })
+  b.end('walked ' + i + ' nodes')
+})
+
+bench('estree-walk', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  eswalk(ast, function (node) { i++ })
+  b.end('walked ' + i + ' nodes')
+})
+
+bench('estree-walk steps', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  for (var q = [ast], node; (node = q.pop()); eswalk.step(node, q)) {
+    i++
+  }
+  b.end('walked ' + i + ' nodes')
+})
+
+bench('dash-ast', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  dash(ast, function (node) { i++ })
+  b.end('walked ' + i + ' nodes')
+})
+
+bench('dash-ast with .parent', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  dash.withParent(ast, function (node) { i++ })
+  b.end('walked ' + i + ' nodes')
+})
+
+bench('dash-ast with enter/leave', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  var j = 0
+  dash(ast, {
+    enter: function (node) { i++ },
+    leave: function (node) { j++ }
+  })
+  b.end('walked ' + [i, j] + ' nodes')
+})
+
+bench('estree-walker', function (b) {
+  var ast = parse(src)
+  b.start()
+  var i = 0
+  eswalker.walk(ast, {
+    enter: function (node) { i++ }
+  })
+  b.end('walked ' + i + ' nodes')
+})

node_modules/dash-ast/index.js

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+var assert = require('assert')
+
+module.exports = dashAst
+
+/**
+ * Call `cb` on each node in `ast`. If `cb` is an object, `cb.enter` is called before processing a Node's children,
+ * and `cb.leave` is called after processing a Node's children.
+ */
+function dashAst (ast, cb) {
+  assert(ast && typeof ast === 'object' && typeof ast.type === 'string',
+    'dash-ast: ast must be an AST node')
+
+  if (typeof cb === 'object') {
+    assert(typeof cb.enter === 'function' || typeof cb.leave === 'function',
+      'dash-ast: visitor must be an object with enter/leave functions')
+
+    walk(ast, null, cb.enter || undefined, cb.leave || undefined)
+  } else {
+    assert(cb && typeof cb === 'function',
+      'dash-ast: callback must be a function')
+
+    walk(ast, null, cb, undefined)
+  }
+}
+
+/**
+ * Call `cb` on each node in `ast`. Each node will have a `.parent` property.
+ */
+dashAst.withParent = function dashAstParent (ast, cb) {
+  assert(ast && typeof ast === 'object' && typeof ast.type === 'string',
+    'dash-ast.withParent: ast must be an AST node')
+
+  if (typeof cb === 'object') {
+    assert(typeof cb.enter === 'function' || typeof cb.leave === 'function',
+      'dash-ast.withParent: visitor must be an object with enter/leave functions')
+
+    var enter = cb.enter
+    var leave = cb.leave
+    walk(ast, null, function (node, parent) {
+      node.parent = parent
+      if (enter !== undefined) return enter(node)
+    }, leave ? function (node) { leave(node) } : undefined)
+  } else {
+    assert(cb && typeof cb === 'function',
+      'dash-ast.withParent: callback must be a function')
+
+    walk(ast, null, function (node, parent) {
+      node.parent = parent
+      return cb(node)
+    }, undefined)
+  }
+}
+
+function walk (node, parent, enter, leave) {
+  var cont = enter !== undefined ? enter(node, parent) : undefined
+  if (cont === false) return
+
+  for (var k in node) {
+    if (has(node, k)) {
+      if (k === 'parent') continue
+      if (isNode(node[k])) {
+        walk(node[k], node, enter, leave)
+      } else if (Array.isArray(node[k])) {
+        walkArray(node[k], node, enter, leave)
+      }
+    }
+  }
+
+  if (leave !== undefined) leave(node, parent)
+}
+
+function walkArray (nodes, parent, enter, leave) {
+  for (var i = 0; i < nodes.length; i++) {
+    if (isNode(nodes[i])) walk(nodes[i], parent, enter, leave)
+  }
+}
+
+function isNode (node) {
+  return typeof node === 'object' && node && typeof node.type === 'string'
+}
+
+function has (obj, prop) {
+  return Object.prototype.hasOwnProperty.call(obj, prop)
+}

node_modules/dash-ast/package.json

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+{
+  "name": "dash-ast",
+  "description": "walk an AST, quickly",
+  "version": "1.0.0",
+  "author": "Renée Kooi <renee@kooi.me>",
+  "bugs": {
+    "url": "https://github.com/goto-bus-stop/dash-ast/issues"
+  },
+  "devDependencies": {
+    "acorn": "^5.5.3",
+    "astw": "^2.2.0",
+    "estree-walk": "^2.2.0",
+    "estree-walker": "^0.5.2",
+    "nanobench": "^2.1.1",
+    "standard": "^11.0.1",
+    "tape": "^4.9.0"
+  },
+  "homepage": "https://github.com/goto-bus-stop/dash-ast",
+  "keywords": [
+    "ast",
+    "estree",
+    "javascript",
+    "parse",
+    "transform",
+    "tree",
+    "visitor",
+    "walk",
+    "walker"
+  ],
+  "license": "Apache-2.0",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/goto-bus-stop/dash-ast.git"
+  },
+  "scripts": {
+    "test": "standard && node test && node bench"
+  }
+}

node_modules/dash-ast/test/index.js

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+var test = require('tape')
+var src = require('fs').readFileSync(require.resolve('acorn'))
+var parse = require('acorn').parse
+var dash = require('../')
+
+var NUM_NODES = 25426
+
+test('dash-ast', function (t) {
+  var ast = parse(src)
+  var i = 0
+  dash(ast, function (node) { i++ })
+  t.equal(i, NUM_NODES)
+  t.comment('walked ' + i + ' nodes')
+  t.end()
+})
+
+test('dash-ast with .parent', function (t) {
+  var ast = parse(src)
+  var i = 0
+  dash.withParent(ast, function (node) { i++ })
+  t.equal(i, NUM_NODES)
+  t.comment('walked ' + i + ' nodes')
+  t.end()
+})
+
+test('dash-ast with enter/leave', function (t) {
+  var ast = parse(src)
+  var i = 0
+  var j = 0
+  dash(ast, {
+    enter: function (node) { i++ },
+    leave: function (node) { j++ }
+  })
+  t.equal(i, NUM_NODES)
+  t.equal(j, NUM_NODES)
+  t.comment('walked ' + [i, j] + ' nodes')
+  t.end()
+})