class GirFFI::Builders::ObjectBuilder

Implements the creation of a class representing a GObject Object.

Public Instance Methods

ancestor_infos() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 37
def ancestor_infos
  @ancestor_infos ||= [info] + info.interfaces + parent_ancestor_infos
end
find_property(property_name) click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 28
def find_property(property_name)
  seek_in_ancestor_infos { |info| info.find_property property_name } or
    raise "Property #{property_name} not found"
end
find_signal(signal_name) click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 23
def find_signal(signal_name)
  seek_in_ancestor_infos { |info| info.find_signal signal_name } or
    raise "Signal #{signal_name} not found"
end
object_class_struct() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 33
def object_class_struct
  @object_class_struct ||= Builder.build_class object_class_struct_info
end

Private Instance Methods

define_vfunc_invoker(vfunc_name, invoker_name) click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 103
def define_vfunc_invoker(vfunc_name, invoker_name)
  return if vfunc_name == invoker_name
  klass.class_eval "
    def #{vfunc_name} *args, &block
      #{invoker_name}(*args, &block)
    end
  "
end
interfaces() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 128
def interfaces
  info.interfaces.map do |ifinfo|
    GirFFI::Builder.build_class ifinfo
  end
end
layout_superclass() click to toggle source

FIXME: Private method only used in subclass

# File lib/gir_ffi/builders/object_builder.rb, line 58
def layout_superclass
  FFI::Struct
end
object_class_struct_info() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 134
def object_class_struct_info
  @object_class_struct_info ||= info.class_struct
end
parent_ancestor_infos() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 83
def parent_ancestor_infos
  @parent_ancestor_infos ||= parent_builder.ancestor_infos
end
parent_builder() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 75
def parent_builder
  @parent_builder ||= if parent_info
                        Builders::TypeBuilder.builder_for(parent_info)
                      else
                        ObjectBaseBuilder.new
                      end
end
parent_info() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 62
def parent_info
  unless defined? @parent_info
    @parent_info = if (parent = info.parent) && parent != info
                     parent
                   end
  end
  @parent_info
end
provide_initializer() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 112
def provide_initializer
  return if info.find_method 'new'

  klass.class_eval "
    def initialize(properties = {})
      base_initialize(properties)
    end
  "
end
seek_in_ancestor_infos() { |info| ... } click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 138
def seek_in_ancestor_infos
  ancestor_infos.each do |info|
    item = yield info
    return item if item
  end
  nil
end
setup_class() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 43
def setup_class
  setup_layout
  setup_constants
  stub_methods
  if info.fundamental?
    setup_field_accessors
  else
    setup_property_accessors
  end
  setup_vfunc_invokers
  setup_interfaces
  provide_initializer
end
setup_interfaces() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 122
def setup_interfaces
  interfaces.each do |iface|
    klass.send :include, iface
  end
end
setup_property_accessors() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 87
def setup_property_accessors
  info.properties.each do |prop|
    PropertyBuilder.new(prop).build
  end
end
setup_vfunc_invokers() click to toggle source

TODO: Guard agains accidental invocation of undefined vfuncs. TODO: Create object responsible for creating these invokers

# File lib/gir_ffi/builders/object_builder.rb, line 95
def setup_vfunc_invokers
  info.vfuncs.each do |vfinfo|
    if (invoker = vfinfo.invoker)
      define_vfunc_invoker vfinfo.name, invoker.name
    end
  end
end
superclass() click to toggle source
# File lib/gir_ffi/builders/object_builder.rb, line 71
def superclass
  @superclass ||= parent_builder.build_class
end