Sha256: 62d564b5512ff95dba5dcbef4d5e9b7c105e6d5067ef548e7f12a26c108c7ff6
Contents?: true
Size: 987 Bytes
Versions: 20
Compression:
Stored size: 987 Bytes
Contents
# frozen_string_literal: true
class Object
# Returns a hash with string keys that maps instance variable names without "@" to their
# corresponding values.
#
# class C
# def initialize(x, y)
# @x, @y = x, y
# end
# end
#
# C.new(0, 1).instance_values # => {"x" => 0, "y" => 1}
def instance_values
instance_variables.to_h do |ivar|
[ivar[1..-1].freeze, instance_variable_get(ivar)]
end
end
if Symbol.method_defined?(:name) # RUBY_VERSION >= "3.0"
# Returns an array of instance variable names as strings including "@".
#
# class C
# def initialize(x, y)
# @x, @y = x, y
# end
# end
#
# C.new(0, 1).instance_variable_names # => ["@y", "@x"]
def instance_variable_names
instance_variables.map(&:name)
end
else
def instance_variable_names
variables = instance_variables
variables.map! { |s| s.to_s.freeze }
variables
end
end
end
Version data entries
20 entries across 20 versions & 6 rubygems