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Contents
# frozen_string_literal: true
module Karafka
module Routing
# Proxy is used as a translation layer in between the DSL and raw topic and consumer group
# objects.
class Proxy
attr_reader :target
# @param target [Object] target object to which we proxy any DSL call
# @param block [Proc] block that we want to evaluate in the proxy context
def initialize(target, &block)
@target = target
instance_eval(&block)
end
# Ruby 2.7.0 to 2.7.2 do not have arg forwarding, so we fallback to the old way
arg_forwarding = RUBY_VERSION < '3.0' ? '*args, &block' : '...'
class_eval <<~RUBY, __FILE__, __LINE__ + 1
# Translates the no "=" DSL of routing into elements assignments on target
# @param method_name [Symbol] name of the missing method
def method_missing(method_name, #{arg_forwarding})
return super unless respond_to_missing?(method_name)
if @target.respond_to?(:"\#{method_name}=")
@target.public_send(:"\#{method_name}=", #{arg_forwarding})
else
@target.public_send(method_name, #{arg_forwarding})
end
end
RUBY
# Tells whether or not a given element exists on the target
# @param method_name [Symbol] name of the missing method
# @param include_private [Boolean] should we include private in the check as well
def respond_to_missing?(method_name, include_private = false)
@target.respond_to?(:"#{method_name}=", include_private) ||
@target.respond_to?(method_name, include_private) ||
super
end
end
end
end
Version data entries
47 entries across 47 versions & 1 rubygems