class ExecJS::RubyRacerRuntime::Context

Public Class Methods

new(runtime, source = "", options = {}) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 6
def initialize(runtime, source = "", options = {})
  source = encode(source)

  lock do
    @v8_context = ::V8::Context.new

    begin
      @v8_context.eval(source)
    rescue ::V8::JSError => e
      raise wrap_error(e)
    end
  end
end

Public Instance Methods

call(properties, *args) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 42
def call(properties, *args)
  lock do
    begin
      unbox @v8_context.eval(properties).call(*args)
    rescue ::V8::JSError => e
      raise wrap_error(e)
    end
  end
end
eval(source, options = {}) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 28
def eval(source, options = {})
  source = encode(source)

  if /\S/ =~ source
    lock do
      begin
        unbox @v8_context.eval("(#{source})")
      rescue ::V8::JSError => e
        raise wrap_error(e)
      end
    end
  end
end
exec(source, options = {}) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 20
def exec(source, options = {})
  source = encode(source)

  if /\S/ =~ source
    eval "(function(){#{source}})()", options
  end
end
unbox(value) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 52
def unbox(value)
  case value
  when ::V8::Function
    nil
  when ::V8::Array
    value.map { |v| unbox(v) }
  when ::V8::Object
    value.inject({}) do |vs, (k, v)|
      vs[k] = unbox(v) unless v.is_a?(::V8::Function)
      vs
    end
  when String
    value.force_encoding('UTF-8')
  else
    value
  end
end

Private Instance Methods

lock() { || ... } click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 71
def lock
  result, exception = nil, nil
  V8::C::Locker() do
    begin
      result = yield
    rescue Exception => e
      exception = e
    end
  end

  if exception
    raise exception
  else
    result
  end
end
wrap_error(e) click to toggle source
# File lib/execjs/ruby_racer_runtime.rb, line 88
def wrap_error(e)
  error_class = e.value["name"] == "SyntaxError" ? RuntimeError : ProgramError

  stack = e.value["stack"] || ""
  stack = stack.split("\n")
  stack.shift
  stack = [e.message[/<eval>:\d+:\d+/, 0]].compact if stack.empty?
  stack = stack.map { |line| line.sub(" at ", "").sub("<eval>", "(execjs)").strip }

  error = error_class.new(e.value.to_s)
  error.set_backtrace(stack + caller)
  error
end