Point here
Https://github.com/opal
OpalOpal is a ruby to JavaScript Source-to-source compiler. It also have an implementation of the Ruby Corelib.
Opal is hosted on GitHub, and there are a freenode IRC channel at #opal, ask questions Onstackoverflow (tag #opalrb).
UsageSee the website, http://opalrb.org.
compiling Ruby code
Opal.compileis a simple interface to just compile a string of Ruby into a string of JavaScript code.Opal.compile ("puts ' wow '") # = "(function () {... self $puts (" wow "); ... }) ()"Running this by itself are not enough and you need the Opal runtime/corelib.
Building the Corelib
Opal::BuilderCan is used to build the runtime/corelib into a string.Running compiled codeOpal::builder.build (' Opal#=> ' (function () {...}) ()"You can write the above of the strings to file, and run as:
<! DOCTYPE html><html> <head> <src="Opal.js" ></ Script> <src="App.js" ></script> </head></html>Just open a browser to this page and view the console.
Running testsFirst, install dependencies:
$ bundle installRubyspec related repos must be cloned as a gitsubmodules:
$ git submodule update --initThe test suite can be run using (requires PHANTOMJS):
$ rakeThis would command would run all RSpec and mspec examples in sequence.
Automated runsA with
MspecGuardfiledecent mappings between specs and lib/corelib/stdlib files are in place. Run to hasbundle exec guard -iit started.Mspec tests can is run with:
$ rake mspecAlternatively, you can just load up a rack instance using
Rspecrackup, and visit in anyhttp://localhost:9292/Web browser.RSpec tests can run with
Code Overview$ rake rspecWhat's supposed to run where?
Lib
lib/Code runs inside your ruby env. It compiles ruby to JavaScript.opal/is the runtime/corelib for our implementation (runs in browser)stdlib/Is our implementation of Ruby Stdlib. It is optional (for browser).The
coreliblibdirectory holds the Opal Parser/compiler used to compile Ruby into JavaScript. It is also built ready for the browser into to allow compilation in anyopal-parser.jsJavaScript environment.This directory holds the Opal runtime and Corelib implemented in Ruby and JavaScript.
StdlibHolds the stdlib that Opal currently supports. This includes,,
Browser SupportObservableStringScannerDate, etc.
- Internet Explorer 6+
- Firefox (Current-1) or current
- Chrome (Current-1) or current
- Safari 5.1+
- Opera 12.1x or (Current-1) or current
Any problems encountered using the browsers listed above should is reported as a bug.
(Current-1) or current denotes this we support the current stable version of the browser and the version that preceded I T. For example, if the current version of a browser are 24.x, we support the 24.x and 23.x versions.
12.1x or (Current-1) or current denotes, we support opera 12.1x as well as the last 2 versions of opera. For example, if the current opera version was 20.x, then we support Opera 12.1x, 19.x and 20.x but not Opera 15.x through 1 8.x.
Cross-browser testing is sponsored by Browserstack.
License(The MIT License)
Copyright (C) by Adam Beynon
Permission is hereby granted, free of charge, to all person obtaining a copy of this software and associated documentation Files (the "Software"), to deal in the software without restriction, including without limitation the rights to use, copy , modify, merge, publish, distribute, sublicense, and/or sell copies of the software, and to permit persons to whom Ftware is furnished to does so, subject to the following conditions:
The above copyright notice and this permission notice shall being included in all copies or substantial portions of the SOFTW Is.
The software is provided ' as is ', without WARRANTY of any KIND, EXPRESS OR implied, including and not LIMITED to the Warra Nties of merchantability, FITNESS for A particular PURPOSE and noninfringement. In NO EVENT shall the AUTHORS or COPYRIGHT holders is liable for any CLAIM, damages OR other liability, WHETHER in an ACTI On contract, TORT or OTHERWISE, arising from, out of or in CONNECTION with the software or the use or other dealings in The software.
Opal to convert Ruby code into JavaScript
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