mirror of
https://github.com/rails/execjs
synced 2023-03-27 23:21:20 -04:00
Add runtime using GraalJS on TruffleRuby
* Use Truffle inner contexts to provide correct isolation between ExecJS::Context * To run the tests: TRUFFLERUBYOPT="--jvm --polyglot" bundle exec rake test:graaljs TESTOPTS="--seed=0 --verbose" * Full command without subprocess: TRUFFLERUBYOPT="--jvm --polyglot" jt -u jvm-js ruby -w -Ilib:test -I $PWD/vendor/bundle/truffleruby/*/gems/rake-13.0.1/lib $PWD/vendor/bundle/truffleruby/*/gems/rake-13.0.1/lib/rake/rake_test_loader.rb test/test_execjs.rb --seed=0 --verbose * Try command: TRUFFLERUBYOPT="--jvm --polyglot" jt -u jvm-js ruby -Ilib -rexecjs -e 'p ExecJS.eval("2 + 3")'
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3 changed files with 154 additions and 1 deletions
7
.github/workflows/ci.yml
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7
.github/workflows/ci.yml
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@ -7,7 +7,7 @@ jobs:
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strategy:
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fail-fast: false
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matrix:
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ruby: [ '3.0', '2.7', '2.6', '2.5', 'jruby', 'truffleruby' ]
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ruby: [ '3.0', '2.7', '2.6', '2.5', 'jruby', 'truffleruby', 'truffleruby+graalvm-head' ]
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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@ -18,12 +18,17 @@ jobs:
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uses: ruby/setup-ruby@v1
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with:
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ruby-version: ${{ matrix.ruby }}
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- name: Update Rubygems
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run: gem update --system
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- name: Install bundler
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run: gem install bundler -v '2.2.16'
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- name: Install dependencies
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run: bundle install
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- name: Set TRUFFLERUBYOPT
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run: echo "TRUFFLERUBYOPT=--jvm --polyglot" >> $GITHUB_ENV
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if: matrix.ruby == 'truffleruby+graalvm-head'
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- name: Run test
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run: rake
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- name: Install gem
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144
lib/execjs/graaljs_runtime.rb
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144
lib/execjs/graaljs_runtime.rb
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@ -0,0 +1,144 @@
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require "execjs/runtime"
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module ExecJS
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class GraalJSRuntime < Runtime
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class Context < Runtime::Context
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def initialize(runtime, source = "", options = {})
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@context = Polyglot::InnerContext.new
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@context.eval('js', 'delete this.console')
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@js_object = @context.eval('js', 'Object')
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source = encode(source)
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unless source.empty?
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translate do
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eval_in_context(source)
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end
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end
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end
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def exec(source, options = {})
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source = encode(source)
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source = "(function(){#{source}})()" if /\S/.match?(source)
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translate do
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eval_in_context(source)
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end
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end
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def eval(source, options = {})
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source = encode(source)
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source = "(#{source})" if /\S/.match?(source)
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translate do
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eval_in_context(source)
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end
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end
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def call(source, *args)
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source = encode(source)
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source = "(#{source})" if /\S/.match?(source)
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translate do
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function = eval_in_context(source)
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function.call(*convert_ruby_to_js(args))
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end
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end
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private
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def translate
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begin
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convert_js_to_ruby yield
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rescue ::RuntimeError => e
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if e.message.start_with?('SyntaxError:')
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error_class = ExecJS::RuntimeError
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else
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error_class = ExecJS::ProgramError
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end
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backtrace = e.backtrace.map { |line| line.sub('(eval)', '(execjs)') }
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raise error_class, e.message, backtrace
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end
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end
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def convert_js_to_ruby(value)
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case value
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when true, false, Integer, Float
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value
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else
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if value.nil?
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nil
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elsif value.respond_to?(:call)
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nil
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elsif value.respond_to?(:to_str)
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value.to_str
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elsif value.respond_to?(:to_ary)
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value.to_ary.map do |e|
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if e.respond_to?(:call)
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nil
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else
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convert_js_to_ruby(e)
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end
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end
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else
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object = value
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h = {}
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object.instance_variables.each do |member|
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v = object[member]
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unless v.respond_to?(:call)
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h[member.to_s] = convert_js_to_ruby(v)
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end
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end
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h
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end
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end
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end
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def convert_ruby_to_js(value)
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case value
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when nil, true, false, Integer, Float, String
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value
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when Array
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value.map { |e| convert_ruby_to_js(e) }
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when Hash
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h = @js_object.new
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value.each_pair do |k,v|
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h[convert_ruby_to_js(k)] = convert_ruby_to_js(v)
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end
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h
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else
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raise TypeError, "Unknown how to convert to JS: #{value.inspect}"
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end
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end
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class_eval <<-'RUBY', "(execjs)", 1
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def eval_in_context(code); @context.eval('js', code); end
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RUBY
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end
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def name
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"GraalVM (Graal.js)"
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end
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def available?
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return @available if defined?(@available)
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unless RUBY_ENGINE == "truffleruby"
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return @available = false
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end
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unless defined?(Polyglot::InnerContext)
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warn "TruffleRuby #{RUBY_ENGINE_VERSION} does not have support for inner contexts, use a more recent version", uplevel: 0
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return @available = false
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end
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unless Polyglot.languages.include? "js"
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warn "The language 'js' is not available, you likely need to `export TRUFFLERUBYOPT='--jvm --polyglot'`", uplevel: 0
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warn "Note that you need TruffleRuby+GraalVM and not just the TruffleRuby standalone to use #{self.class}", uplevel: 0
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return @available = false
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end
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@available = true
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end
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end
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end
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@ -4,6 +4,7 @@ require "execjs/duktape_runtime"
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require "execjs/external_runtime"
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require "execjs/ruby_rhino_runtime"
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require "execjs/mini_racer_runtime"
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require "execjs/graaljs_runtime"
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module ExecJS
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module Runtimes
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RubyRhino = RubyRhinoRuntime.new
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GraalJS = GraalJSRuntime.new
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MiniRacer = MiniRacerRuntime.new
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Node = ExternalRuntime.new(
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@ -82,6 +85,7 @@ module ExecJS
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def self.runtimes
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@runtimes ||= [
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RubyRhino,
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GraalJS,
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Duktape,
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MiniRacer,
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Node,
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