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require "execjs/runtime"
module ExecJS
class RubyRacerRuntime < Runtime
class Context < Runtime::Context
def initialize(runtime, source = "")
source = encode(source)
lock do
@v8_context = ::V8::Context.new
@v8_context.eval(source)
end
end
def exec(source, options = {})
source = encode(source)
if /\S/ =~ source
eval "(function(){#{source}})()", options
end
end
def eval(source, options = {})
source = encode(source)
if /\S/ =~ source
lock do
begin
unbox @v8_context.eval("(#{source})")
rescue ::V8::JSError => e
if e.value["name"] == "SyntaxError"
raise RuntimeError, e.value.to_s
else
raise ProgramError, e.value.to_s
end
end
end
end
end
def call(properties, *args)
lock do
begin
unbox @v8_context.eval(properties).call(*args)
rescue ::V8::JSError => e
if e.value["name"] == "SyntaxError"
raise RuntimeError, e.value.to_s
else
raise ProgramError, e.value.to_s
end
end
end
end
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
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
end
def name
"therubyracer (V8)"
end
def available?
require "v8"
true
rescue LoadError
false
end
end
end
|
