module MultiJson

Some parts adapted from golang.org/src/pkg/json/decode.go and golang.org/src/pkg/utf8/utf8.go

Constants

DEFAULT_ENGINE_WARNING
REQUIREMENT_MAP
VERSION

Public Instance Methods

decode(string, options = {}) click to toggle source

Decode a JSON string into Ruby.

Options

:symbolize_keys: If true, will use symbols instead of strings for the keys.

# File lib/multi_json.rb, line 80
def decode(string, options = {})
  engine.decode(string, options)
rescue engine::ParseError => exception
  raise DecodeError.new(exception.message, exception.backtrace, string)
end

default_engine() click to toggle source

The default engine based on what you currently have loaded and installed. First checks to see if any engines are already loaded, then checks to see which are installed if none are loaded.

# File lib/multi_json.rb, line 35
def default_engine
  return :oj if defined?(::Oj)
  return :yajl if defined?(::Yajl)
  return :json_gem if defined?(::JSON)

  REQUIREMENT_MAP.each do |(library, engine)|
    begin
      require library
      return engine
    rescue LoadError
      next
    end
  end

  Kernel.warn DEFAULT_ENGINE_WARNING
  :ok_json
end

encode(object, options = {}) click to toggle source

Encodes a Ruby object as JSON.

# File lib/multi_json.rb, line 87
def encode(object, options = {})
  engine.encode(object, options)
end

engine() click to toggle source

Get the current engine class.

# File lib/multi_json.rb, line 16
def engine
  return @engine if @engine
  self.engine = self.default_engine
  @engine
end

engine=(new_engine) click to toggle source

Set the JSON parser utilizing a symbol, string, or class. Supported by default are:

:json_gem
:json_pure
:ok_json
:yajl
:nsjsonserialization (MacRuby only)

# File lib/multi_json.rb, line 61
def engine=(new_engine)
  case new_engine
  when String, Symbol
    require "multi_json/engines/#{new_engine}"
    @engine = MultiJson::Engines.const_get("#{new_engine.to_s.split('_').map{|s| s.capitalize}.join('')}")
  when NilClass
    @engine = nil
  when Class
    @engine = new_engine
  else
    raise "Did not recognize your engine specification. Please specify either a symbol or a class."
  end
end