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require 'protobuf/enum_value'
module Protobuf
class Enum
def self.define(name, value)
enum_value = ::Protobuf::EnumValue.new(self, name, value)
const_set(name, enum_value)
@values ||= {}
@names ||= []
@values[name] = enum_value
@names[value] = name
end
# Fetch the given enum by a variety of type-checking
# mechanisms. This is useful for the enum field setters
# as well as repeated enum field construction.
def self.fetch(value)
case value
when ::Protobuf::EnumValue then
value
when Numeric then
enum_by_value(value.to_i)
when String, Symbol then
value_by_name(value.to_sym)
else
nil
end
end
def self.enum_by_value(value)
value_by_name(name_by_value(value))
end
def self.name_by_value(value)
value.nil? ? nil : @names[value]
end
def self.valid_tag?(tag)
!! name_by_value(tag)
end
def self.value_by_name(name)
@values[name]
end
def self.values
@values
end
##
# Class Aliases
#
class << self
alias_method :get_name_by_tag, :name_by_value
end
end
end
Version data entries
29 entries across 29 versions & 1 rubygems