https://github.com/camertron/escodegen-rb

Ruby wrapper around the escodegen JavaScript generator that generates ECMA script from an abstract syntax tree.
https://github.com/camertron/escodegen-rb

Last synced: 18 days ago
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Ruby wrapper around the escodegen JavaScript generator that generates ECMA script from an abstract syntax tree.

• Host: GitHub
• URL: https://github.com/camertron/escodegen-rb
• Owner: camertron
• License: apache-2.0
• Created: 2012-10-31T00:01:26.000Z (about 12 years ago)
• Default Branch: master
• Last Pushed: 2012-12-27T01:02:57.000Z (about 12 years ago)
• Last Synced: 2024-11-04T00:42:07.467Z (2 months ago)
• Language: Ruby
• Size: 210 KB
• Stars: 1
• Watchers: 3
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: History.txt
  • License: LICENSE

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README

        
## escodegen-rb  [![Build Status](https://secure.travis-ci.org/camertron/escodegen-rb.png?branch=master)](http://travis-ci.org/camertron/escodegen-rb)

escodegen (https://github.com/Constellation/escodegen) is an ECMAScript code generator that converts an abstract syntax tree (such as one created by Esprima) into ECMAScript.  This library wraps the escodegen JavaScript library for easy use within Ruby.

### Installation

Install the gem as you would any other:

```

gem install escodegen

```

Then, require it in your project:

```ruby

require 'escodegen'

```

### Generating JavaScript from an AST

Let's say you have an AST for the expression `7 + 8;`:

```ruby

ast = {

  :type => "Program",

  :body => [{

    :type => "ExpressionStatement",

    :expression => {

      :left => {

        :type => "Literal",

        :value => 7

      },

      :type => "BinaryExpression",

      :right => {

        :type => "Literal",

        :value => 8

      },

      :operator => "+"

    }

  }]

}

```

Here's how to use escodegen to generate the JavaScript from the AST:

```ruby

generator = Escodegen::Generator.new

generator.generate(ast)

```

This should output `7 + 8;`.

## Requirements

No external requirements.

## Running Tests

Run `bundle exec rake` or `bundle exec rspec`.

## Authors

* Cameron C. Dutro: https://github.com/camertron

* The escodegen team including Yusuke Suzuki: https://github.com/Constellation

## Links

* escodegen [https://github.com/Constellation/escodegen](https://github.com/Constellation/escodegen)

## License

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0