Module: ProxyPacRb::Runtimes

Defined in:
lib/proxy_pac_rb/runtimes.rb

Overview

JavaScript Runtimes

Constant Summary collapse

RubyRacer = 
RubyRacerRuntime.new
RubyRhino = 
RubyRhinoRuntime.new

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.autodetect ⇒ Object 



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# File 'lib/proxy_pac_rb/runtimes.rb', line 9

def autodetect
  from_environment || best_available ||
    raise(RuntimeUnavailableError, 'Could not find a JavaScript runtime. ' \
          'See https://github.com/sstephenson/execjs for a list of available runtimes.')
end

.best_available ⇒ Object 



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# File 'lib/proxy_pac_rb/runtimes.rb', line 15

def best_available
  runtimes.reject(&:deprecated?).find(&:available?)
end

.from_environment ⇒ Object

Raises:



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# File 'lib/proxy_pac_rb/runtimes.rb', line 19

def from_environment
  return nil unless ENV['JS_RUNTIME']

  runtime = const_get(ENV['JS_RUNTIME'])

  raise RuntimeUnavailableError, "#{ENV['JS_RUNTIME']} runtime is not defined" unless runtime
  raise RuntimeUnavailableError, "#{runtime.name} runtime is not available on this system" unless runtime.available?

  runtime
end

.names ⇒ Object 



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# File 'lib/proxy_pac_rb/runtimes.rb', line 30

def names
  @names ||= constants.reduce({}) { |acc, elem| acc.merge(const_get(elem) => elem) }.values
end

.runtimes ⇒ Object 



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# File 'lib/proxy_pac_rb/runtimes.rb', line 34

def runtimes
  @runtimes ||= [
    RubyRacer,
    RubyRhino
  ]
end

Instance Method Details

#runtimes ⇒ Object 



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# File 'lib/proxy_pac_rb/runtimes.rb', line 42

def runtimes
  Runtimes.runtimes
end