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Size: 1.07 KB
Versions: 10
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Stored size: 1.07 KB
Contents
# -*- encoding: utf-8 -*-
# -*- frozen_string_literal: true -*-
# -*- warn_indent: true -*-
module UnitMeasurements
class UnitGroup
attr_reader :primitive, :units
def initialize(primitive, units)
@units = units.map { |unit| unit.with(unit_group: self) }
@primitive = unit_for!(primitive) if primitive
end
def unit_for(name)
unit_name_to_unit(name)
end
def unit_for!(name)
unit = unit_for(name)
raise UnitError, name unless unit
unit
end
alias_method :[], :unit_for!
def unit_with_name_and_aliases
units.each_with_object({}) do |unit, hash|
unit.names.each { |name| hash[name.to_s] = unit }
end
end
def unit_names
units.map(&:name).sort
end
def unit_names_with_aliases
units.flat_map(&:names).sort
end
def unit_name_to_unit(name)
unit_with_name_and_aliases[name.to_s]
end
def defined?(name)
unit = unit_for(name)
unit ? unit.name == name.to_s : false
end
def unit_or_alias?(name)
!!unit_for(name)
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems