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Contents
require 'protobuf/field/base_field'
module Protobuf
module Field
class MessageField < BaseField
RAISE_TYPE = lambda { |field, val| raise TypeError, "Expected value of type '#{field.type}' for field #{field.name}, but got '#{val.class}'" }
##
# Public Instance Methods
#
def acceptable?(val)
RAISE_TYPE.call(self, val) unless val.instance_of?(type) || val.respond_to?(:to_hash)
true
end
def decode(bytes)
message = type.new
message.parse_from_string(bytes)
message
end
def encode(value)
bytes = value.serialize_to_string
result = ::Protobuf::Field::VarintField.encode(bytes.size)
result << bytes
end
def message?
true
end
def wire_type
::Protobuf::WireType::LENGTH_DELIMITED
end
private
def define_setter
field = self
@message_class.class_eval do
define_method("#{field.name}=") do |val|
case
when val.nil? then
@values.delete(field.name)
when val.is_a?(field.type) then
@values[field.name] = val
when val.respond_to?(:to_proto) then
@values[field.name] = val.to_proto
when val.respond_to?(:to_hash) then
@values[field.name] = field.type.new(val.to_hash)
else
RAISE_TYPE.call(field, val)
end
end
end
end
end
end
end
Version data entries
51 entries across 51 versions & 1 rubygems