class GObjectIntrospection::TypeTag

# File lib/gobject-introspection/type-tag.rb, line 37
def description(type_info)
  method = "description_#{nick}"
  if respond_to?(method, true)
    __send__(method, type_info)
  else
    nick
  end
end

# File lib/gobject-introspection/type-tag.rb, line 28
def match?(type_info, value)
  method = "match_#{nick}?"
  if respond_to?(method, true)
    __send__(method, type_info, value)
  else
    false
  end
end

# File lib/gobject-introspection/type-tag.rb, line 19
def try_convert(type_info, value)
  method = "try_convert_#{nick}"
  if respond_to?(method, true)
    __send__(method, type_info, value)
  else
    nil
  end
end

# File lib/gobject-introspection/type-tag.rb, line 179
def description_array_like(type_info)
  element_type_info = type_info.get_param_type(0)
  "#{nick}(#{element_type_info.description})"
end

# File lib/gobject-introspection/type-tag.rb, line 231
def description_ghash(type_info)
  key_type = type_info.get_param_type(0)
  value_type = type_info.get_param_type(1)
  "#{nick}(#{key_type.description}->#{value_type.description})"
end

# File lib/gobject-introspection/type-tag.rb, line 245
def description_interface(type_info)
  "#{nick}(#{type_info.interface.description})"
end

# File lib/gobject-introspection/type-tag.rb, line 184
def get_element_type_info(type_info)
  type_info.get_param_type(0)
end

# File lib/gobject-introspection/type-tag.rb, line 201
def match_array?(type_info, value)
  case get_element_type_info(type_info).tag
  when INT8, UINT8
    return true if value.is_a?(String)
  end
  match_array_like?(type_info, value)
end

# File lib/gobject-introspection/type-tag.rb, line 171
def match_array_like?(type_info, value)
  return false unless value.is_a?(Array)
  element_type_info = get_element_type_info(type_info)
  value.all? do |v|
    v.nil? or element_type_info.match?(v)
  end
end

# File lib/gobject-introspection/type-tag.rb, line 58
def match_boolean?(type_info, value)
  value == true or value == false
end

# File lib/gobject-introspection/type-tag.rb, line 154
def match_filename?(type_info, value)
  value.is_a?(String)
end

# File lib/gobject-introspection/type-tag.rb, line 106
def match_float?(type_info, value)
  value.is_a?(Float)
end

# File lib/gobject-introspection/type-tag.rb, line 227
def match_ghash?(type_info, value)
  value.is_a?(Hash)
end

# File lib/gobject-introspection/type-tag.rb, line 116
def match_gtype?(type_info, value)
  value.is_a?(GLib::Type)
end

# File lib/gobject-introspection/type-tag.rb, line 81
def match_integer?(type_info, value)
  value.is_a?(Integer)
end

# File lib/gobject-introspection/type-tag.rb, line 241
def match_interface?(type_info, value)
  type_info.interface.match?(value)
end

# File lib/gobject-introspection/type-tag.rb, line 135
def match_utf8?(type_info, value)
  value.is_a?(String)
end

# File lib/gobject-introspection/type-tag.rb, line 188
def try_convert_array(type_info, value)
  case get_element_type_info(type_info).tag
  when INT8, UINT8
    case value
    when String
      return value
    when GLib::Bytes
      return value.to_s
    end
  end
  try_convert_array_like(type_info, value)
end

# File lib/gobject-introspection/type-tag.rb, line 158
def try_convert_array_like(type_info, value)
  value = Array.try_convert(value)
  return nil if value.nil?
  element_type_info = get_element_type_info(type_info)
  value.collect do |v|
    unless v.nil?
      v = element_type_info.try_convert(v)
      return nil if v.nil?
    end
    v
  end
end

# File lib/gobject-introspection/type-tag.rb, line 47
def try_convert_boolean(type_info, value)
  case value
  when true, false
    value
  when nil
    false
  else
    nil
  end
end

# File lib/gobject-introspection/type-tag.rb, line 139
def try_convert_filename(type_info, value)
  case value
  when String
    value.encode(GLib::FILENAME_ENCODING)
  else
    if value.respond_to?(:to_path)
      value.to_path.encode(GLib::FILENAME_ENCODING)
    elsif value.respond_to?(:to_str)
      value.to_str.encode(GLib::FILENAME_ENCODING)
    else
      nil
    end
  end
end

# File lib/gobject-introspection/type-tag.rb, line 94
def try_convert_float(type_info, value)
  if value.is_a?(Float)
    value
  elsif value.respond_to?(:to_f) # TODO: Should we stop this?
    value.to_f
  else
    nil
  end
end

# File lib/gobject-introspection/type-tag.rb, line 218
def try_convert_ghash(type_info, value)
  case value
  when Hash
    value
  else
    nil
  end
end

# File lib/gobject-introspection/type-tag.rb, line 112
def try_convert_gtype(type_info, value)
  GLib::Type.try_convert(value)
end

# File lib/gobject-introspection/type-tag.rb, line 62
def try_convert_integer(type_info, value)
  if value.is_a?(Integer)
    value
  elsif value.respond_to?(:to_int)
    value.to_int
  else
    nil
  end
end

# File lib/gobject-introspection/type-tag.rb, line 237
def try_convert_interface(type_info, value)
  type_info.interface.try_convert(value)
end

# File lib/gobject-introspection/type-tag.rb, line 120
def try_convert_utf8(type_info, value)
  case value
  when String
    value.encode(Encoding::UTF_8)
  when Symbol
    value.to_s.encode(Encoding::UTF_8)
  else
    if value.respond_to?(:to_str)
      value.to_str.encode(Encoding::UTF_8)
    else
      nil
    end
  end
end