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Contents
# frozen_string_literal: true
module Refinements
# Provides additional enhancements to the Struct primitive.
module Structs
refine Struct.singleton_class do
def with_positions(*values) = keyword_init? ? new(**members.zip(values).to_h) : new(*values)
end
refine Struct do
def merge(...) = dup.merge!(...)
def merge! object = nil
to_h.merge!(**object.to_h).each { |key, value| self[key] = value }
self
end
def revalue attributes = each_pair
return self unless block_given?
dup.tap { |copy| attributes.each { |key, value| copy[key] = yield self[key], value } }
end
def revalue! attributes = each_pair
return self unless block_given?
attributes.each { |key, value| self[key] = yield self[key], value }
self
end
def transmute(...) = dup.transmute!(...)
def transmute! object, **key_map
mapping = key_map.invert
merge! object.to_h.slice(*mapping.keys).transform_keys!(mapping)
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems