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Contents
# frozen_string_literal: true
module Datadog
module Core
# A {Datadog::Core::Pin} sets metadata on a particular object.
#
# This is useful if you want the object to reflect
# customized behavior or attributes, like an eigenclass.
class Pin
def self.get_from(obj)
return nil unless obj.respond_to? :datadog_pin
obj.datadog_pin
end
def self.set_on(obj, **options)
if (pin = get_from(obj))
options.each { |k, v| pin[k] = v }
else
pin = new(**options)
pin.onto(obj)
end
pin
end
def initialize(**options)
@options = options
end
def [](name)
@options[name]
end
def []=(name, value)
@options[name] = value
end
def key?(name)
@options.key?(name)
end
# rubocop:disable Style/TrivialAccessors
def onto(obj)
unless obj.respond_to? :datadog_pin=
obj.instance_exec do
def datadog_pin=(pin)
@datadog_pin = pin
end
end
end
unless obj.respond_to? :datadog_pin
obj.instance_exec do
def datadog_pin
@datadog_pin
end
end
end
obj.datadog_pin = self
end
# rubocop:enable Style/TrivialAccessors
def to_s
pretty_options = options.to_a.map { |k, v| "#{k}:#{v}" }.join(', ')
"Pin(#{pretty_options})"
end
private
attr_accessor :options
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems