Package Exports

to-ast

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (to-ast) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

to-ast

This module converts JavaScript objects to an equivalent abstract syntax tree representation, compatible with the Mozilla Parser API. You can use it to generate JavaScript source code from objects, using escodegen.

Usage

Install with npm:

npm install to-ast

Here's a simple example:

var toAST = require('to-ast');
var escodegen = require('escodegen');

// get an AST from a number...
toAST(2) //=> { type: 'Literal', value: 2 }

// or if you want a source string...
escodegen.generate(toAST(2)) //=> '2'

Supported types

undefined
null
number, string, and boolean literals
functions
Node buffers
arrays
String, Number, and Boolean object wrappers
typed arrays and array buffers
dates
errors
regular expressions
object literals

Custom types

Most built-in JavaScript types as supported out of the box, but if you want to override the behavior for your particular object, you can provide a toAST method on your object:

var toAST = require('to-ast');
var escodegen = require('escodegen');

function Person(name) {
  this.name = name;
}

Person.prototype.toAST = function() {
  return {
    type: 'NewExpression',
    callee: { type: 'Identifier', name: 'Person' },
    arguments: [{ type: 'Literal', value: this.name }]
  };
};

escodegen.generate(toAST(new Person('Devon'))) //=> "new Person('Devon')"

License

MIT