Class: TrickSerial::Serializer::Simple

Inherits:
TrickSerial::Serializer show all
Defined in:
lib/trick_serial/serializer/simple.rb

Overview

Simple, non-swizzling coder. This requires encode and decode operations. Array and Hash are not extended to support swizzling. Ivar swizzling is not used.

Instance Attribute Summary

Attributes inherited from TrickSerial::Serializer

#class_option_map, #debug, #enabled, #logger, #logger_level, #root, #verbose

Instance Method Summary collapse

Methods inherited from TrickSerial::Serializer

#_class_option, #_copy_with_extensions, #_extended_by, #_log, #_make_proxy, #_prepare, class_option_map, class_option_map=, #decode, #decode!, default, default=, #enabled?, #encode, #encode!, #initialize, #proxyable

Constructor Details

This class inherits a constructor from TrickSerial::Serializer

Instance Method Details

#_decode!(x) ⇒ Object 



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# File 'lib/trick_serial/serializer/simple.rb', line 16

def _decode! x
  @traverse_mode = :_decode!
  _traverse! x
end

#_encode!(x) ⇒ Object 



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# File 'lib/trick_serial/serializer/simple.rb', line 11

def _encode! x
  @traverse_mode = :_encode!
  _traverse! x
end

#_traverse!(x) ⇒ Object 



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# File 'lib/trick_serial/serializer/simple.rb', line 21

def _traverse! x
  # pp [ :_traverse!, @traverse_mode, x.class, x ] if @debug >= 1

  case x
  when *@do_not_traverse
    # NOTHING

  when ObjectProxy
    if @traverse_mode == :_decode!
      x = x.object
    end

  when Struct
    if o = @visited[x.object_id]
      return o.first
    end
    o = x
    x = _copy_with_extensions(x)
    @visited[o.object_id] = [ x, o ]
    x.class.members.each do | m |
      v = x.send(m)
      v = _traverse! v
      x.send(:"#{m}=", v)
    end

  when OpenStruct
    if o = @visited[x.object_id]
      return o.first
    end
    o = x
    x = _copy_with_extensions(x)
    @visited[o.object_id] = [ x, o ]
    t = x.instance_variable_get("@table")
    t.keys.to_a.each do | k |
      v = t._get_without_trick_serial(k)
      v = _traverse! v
      x.send(:"#{k}=", v)
    end

  when Array
    if o = @visited[x.object_id]
      return o.first
    end
    o = x
    x = _copy_with_extensions(x)
    @visited[o.object_id] = [ x, o ]
    x.map! do | v |
      _traverse! v
    end

  when Hash
    if o = @visited[x.object_id]
      return o.first
    end
    o = x
    x = _copy_with_extensions(x)
    @visited[o.object_id] = [ x, o ]
    x.keys.to_a.each do | k |
      x[k] = _traverse!(x[k])
    end

  when *@proxyable
    if proxy = @object_to_proxy_map[x.object_id]
      return proxy.first
    end
    # debugger
    o = x
    proxy_cls = nil
    if class_option = self._class_option(x)
      proxy_cls = class_option[:proxy_class]
      # Deeply encode instance vars?
      if ivs = class_option[:instance_vars]
        ivs = x.instance_variables if ivs == true
        x = _copy_with_extensions(x)
        @object_to_proxy_map[o.object_id] = [ x, o ]
        ivs.each do | ivar |
          v = x.instance_variable_get(ivar)
          v = _traverse!(v)
          x.instance_variable_set(ivar, v)
        end
      end
    end
    if @traverse_mode == :_decode!
      @object_to_proxy_map[o.object_id] ||= [ x, o ]
    else
      x = _make_proxy o, x, proxy_cls
    end
  end # case

  # pp [ :_traverse!, @traverse_mode, :RESULT, x.class, x ] if @debug >= 2

  x
end