package.json
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{
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"escapedName": "ast-traverse",
"name": "ast-traverse",
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"/Users/admin/Documents/workspace/programming/node_modules/defs"
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"_id": "ast-traverse@0.1.1",
"_inCache": true,
"_location": "/ast-traverse",
"_npmUser": {
"name": "olov",
"email": "olov.lassus@gmail.com"
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"_npmVersion": "1.2.18",
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"name": "ast-traverse",
"rawSpec": "~0.1.1",
"spec": ">=0.1.1 <0.2.0",
"type": "range"
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"_requiredBy": [
"/defs"
],
"_resolved": "https://registry.npmjs.org/ast-traverse/-/ast-traverse-0.1.1.tgz",
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"_spec": "ast-traverse@~0.1.1",
"_where": "/Users/admin/Documents/workspace/programming/node_modules/defs",
"author": {
"name": "Olov Lassus",
"email": "olov.lassus@gmail.com"
},
"bugs": {
"url": "https://github.com/olov/ast-traverse/issues"
},
"dependencies": {},
"description": "simple but flexible AST traversal with pre and post visitors",
"devDependencies": {},
"directories": {},
"dist": {
"shasum": "69cf2b8386f19dcda1bb1e05d68fe359d8897de6",
"tarball": "https://registry.npmjs.org/ast-traverse/-/ast-traverse-0.1.1.tgz"
},
"homepage": "https://github.com/olov/ast-traverse#readme",
"keywords": [
"ast",
"traverse",
"traversal",
"walk",
"visit",
"visitor",
"esprima"
],
"license": "MIT",
"main": "ast-traverse.js",
"maintainers": [
{
"name": "olov",
"email": "olov.lassus@gmail.com"
}
],
"name": "ast-traverse",
"optionalDependencies": {},
"readme": "# ast-traverse.js\nSimple but flexible AST traversal with pre and post visitors.\nWorks in node and browsers.\n\n\n\n## Usage\n```javascript\n// ast is a Mozilla Parser API compatible structure\n// generated by Esprima or another parser\nvar ast = require(\"esprima\").parse(\"f(1, x) + 2\");\n\nvar traverse = require(\"ast-traverse\");\n\n// print AST node types, pre-order (node first, then its children)\ntraverse(ast, {pre: function(node, parent, prop, idx) {\n console.log(node.type + (parent ? \" from parent \" + parent.type +\n \" via \" + prop + (idx !== undefined ? \"[\" + idx + \"]\" : \"\") : \"\"));\n}});\nconsole.log();\n/*\n =>\n Program\n ExpressionStatement from parent Program via body[0]\n BinaryExpression from parent ExpressionStatement via expression\n CallExpression from parent BinaryExpression via left\n Identifier from parent CallExpression via callee\n Literal from parent CallExpression via arguments[0]\n Identifier from parent CallExpression via arguments[1]\n Literal from parent BinaryExpression via right\n */\n\n\n// you can also visit post-order, or both\n// all four arguments are provided to both visitors (left out unused below)\nvar indent = 0;\ntraverse(ast, {\n pre: function(node) {\n console.log(Array(indent + 1).join(\" \") + node.type);\n indent += 4;\n },\n post: function() {\n indent -= 4;\n }\n});\nconsole.log();\n/*\n=>\n Program\n ExpressionStatement\n BinaryExpression\n CallExpression\n Identifier\n Literal\n Identifier\n Literal\n*/\n\n\n// return false from the pre-visitor to skip traversing its children\n// throw an exception to abort traversal\n\n\n// by default node property names beginning with $ are skipped\n// but you can supply your own skipProperty function instead\ntraverse(ast, {\n pre: function(node) {\n console.log(node.type);\n },\n skipProperty: function(prop, node) {\n return prop === \"parent\" || prop === \"expression\";\n }\n});\n/*\n=>\n Program\n ExpressionStatement\n*/\n```\n\n\n\n## Installation\n\n### Node\nInstall using npm\n\n npm install ast-traverse\n\n```javascript\nvar traverse = require(\"ast-traverse\");\n```\n\n### Browser\nClone the repo and include it in a script tag\n\n git clone https://github.com/olov/ast-traverse.git\n\n```html\n<script src=\"ast-traverse/ast-traverse.js\"></script>\n```\n",
"readmeFilename": "README.md",
"repository": {
"type": "git",
"url": "git+https://github.com/olov/ast-traverse.git"
},
"scripts": {},
"version": "0.1.1"
}