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Contents
# frozen_string_literal: true
require_relative "../logging/logger"
module Kanal
module Core
module Conditions
# Base class for conditions
# with this class you can
class Condition
include Logging::Logger
attr_reader :name
def initialize(name, with_argument: false, &met_block)
@name = name
unless met_block
logger.fatal "Attempted to create condition #{name} without block"
raise "Cannot create condition without block"
end
@with_argument = with_argument
# NOTE: this whole bunch of code, including method, is used to allow
# in blocks returns without LocalJumpError
# Basically converting block/proc into lambda, which will allow
# unexpected returns for the comfortability of writing conditions
# Kudos to: https://stackoverflow.com/a/2946734/2739103
@proc_to_lambda_object = Object.new
@proc_to_lambda_object.define_singleton_method(:met_block, &met_block)
end
def with_argument?
@with_argument
end
# Check constructor for more info about this weird met block call
def met?(input, core, argument)
@proc_to_lambda_object.method(:met_block).call input, core, argument
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems