module ExecJS::Runtimes
Constants
- Disabled
- Duktape
- JavaScriptCore
- MiniRacer
- Node
- RubyRacer
- RubyRhino
- SpiderMonkey
- V8
Public Class Methods
autodetect()
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# File lib/execjs/runtimes.rb, line 49 def self.autodetect from_environment || best_available || raise(RuntimeUnavailable, "Could not find a JavaScript runtime. " + "See https://github.com/rails/execjs for a list of available runtimes.") end
best_available()
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# File lib/execjs/runtimes.rb, line 55 def self.best_available runtimes.reject(&:deprecated?).find(&:available?) end
from_environment()
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# File lib/execjs/runtimes.rb, line 59 def self.from_environment if name = ENV["EXECJS_RUNTIME"] raise RuntimeUnavailable, "#{name} runtime is not defined" unless const_defined?(name) runtime = const_get(name) raise RuntimeUnavailable, "#{runtime.name} runtime is not available on this system" unless runtime.available? runtime end end
names()
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# File lib/execjs/runtimes.rb, line 69 def self.names @names ||= constants.inject({}) { |h, name| h.merge(const_get(name) => name) }.values end
runtimes()
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# File lib/execjs/runtimes.rb, line 73 def self.runtimes @runtimes ||= [ RubyRacer, RubyRhino, Duktape, MiniRacer, Node, JavaScriptCore, SpiderMonkey, V8 ] end