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Contents
# frozen_string_literal: true
module AASM
module Core
module Invokers
##
# Proc invoker which allows to use Procs as
# state/event/transition callbacks.
class ProcInvoker < BaseInvoker
def may_invoke?
subject.is_a?(Proc)
end
def log_failure
return log_source_location if Method.method_defined?(:source_location)
log_proc_info
end
def invoke_subject
@result = if support_parameters?
exec_proc(parameters_to_arity)
else
exec_proc(subject.arity)
end
end
private
def support_parameters?
subject.respond_to?(:parameters)
end
# rubocop:disable Metrics/AbcSize
def exec_proc(parameters_size)
return record.instance_exec(&subject) if parameters_size.zero?
return record.instance_exec(*args, &subject) if parameters_size < 0
record.instance_exec(*args[0..(parameters_size - 1)], &subject)
end
# rubocop:enable Metrics/AbcSize
def log_source_location
failures << subject.source_location.join('#')
end
def log_proc_info
failures << subject
end
def parameters_to_arity
subject.parameters.inject(0) do |memo, parameter|
memo += 1
memo *= -1 if parameter[0] == :rest && memo > 0
memo
end
end
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems