Module: CoffeeScript

Defined in:
lib/coffee_script.rb

Defined Under Namespace

Modules: MultiSource

Constant Summary collapse

Error = 
ExecJS::Error
EngineError = 
ExecJS::RuntimeError
CompilationError = 
ExecJS::ProgramError

Class Method Summary collapse

Class Method Details

.all_available_versions ⇒ Object

Look for coffee-script-*.js in the vendor/js folder



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# File 'lib/coffee_script.rb', line 53

def all_available_versions
  jade_paths = Dir.glob File.join MultiSource.sources_directory, "coffee-script*"

  jade_paths.map do |path|
    filename = File.basename path
    filename.sub(/^coffee-script-?/, '').sub(/\.js$/, '')
  end.compact
end

.compile_with_version(version, script, options = {}) ⇒ Object

Compile a script (String or IO) to JavaScript.



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# File 'lib/coffee_script.rb', line 63

def compile_with_version(version, script, options = {})
  script  = script.read if script.respond_to?(:read)

  if options.key?(:bare)
  elsif options.key?(:no_wrap)
    options[:bare] = options[:no_wrap]
  else
    options[:bare] = false
  end

  wrapper = <<-WRAPPER
    (function(script, options) {
      try {
        return CoffeeScript.compile(script, options);
      } catch (err) {
        if (err instanceof SyntaxError && err.location) {
          throw new SyntaxError([
            err.filename || "[stdin]",
            err.location.first_line + 1,
            err.location.first_column + 1
          ].join(":") + ": " + err.message)
        } else {
          throw err;
        }
      }
    })
  WRAPPER

  MultiSource.context_for(version).call(wrapper, script, options)
end

.default_version ⇒ Object 



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# File 'lib/coffee_script.rb', line 42

def default_version
  version = ENV['COFFEESCRIPT_DEFAULT_VERSION'] || '1.4.0'

  unless all_available_versions.include? version
    raise "default CoffeeScript version isn't availale"
  end

  version
end