Sha256: 31f5dfe5dda60d528f799c0276ea2a6a227d0528b7e7910abc09aeddc9dd94b2
Contents?: true
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Versions: 20
Compression:
Stored size: 1.88 KB
Contents
module ProconBypassMan
module Callbacks
class CallbacksChain
attr_accessor :filter, :chain_method
def initialize(filter: , chain_method: , block: )
@filter = filter
@chain_method = chain_method
@block = block
end
end
# TODO __callbacksをincludeしたクラス側で保持する. 今はnemespaceがない
module M
class << self
attr_accessor :__callbacks
end
end
module ClassMethods
def define_callbacks(name)
self.singleton_class.attr_accessor "_#{name}_callbacks"
send "_#{name}_callbacks=", [name] # CallbacksChain
module_eval <<-RUBY, __FILE__, __LINE__ + 1
def _run_#{name}_callbacks(&block)
__run_callbacks__(_#{name}_callbacks, &block)
end
RUBY
end
def set_callback(kind, filter, chain_method, &block)
ProconBypassMan::Callbacks::M.__callbacks ||= {}
ProconBypassMan::Callbacks::M.__callbacks[kind] = CallbacksChain.new(
filter: filter,
chain_method: chain_method,
block: block,
)
end
end
# TODO haltしたらcallbackを止める
# TODO 複数をチェインできるようにする
def run_callbacks(kind, &block)
chain = get_callbacks(kind) or raise("unknown callback")
case chain.filter
when :before
send chain.chain_method
block.call
when :after
block.call
send chain.chain_method
else
raise("unknown filter")
end
end
# def __run_callbacks__(name, &block)
# puts "called"
# end
def get_callbacks(kind) # :nodoc:
ProconBypassMan::Callbacks::M.__callbacks[kind.to_sym]
end
def set_callbacks(name, callbacks) # :nodoc:
send "_#{name}_callbacks=", callbacks
ProconBypassMan::Callbacks::M.__callbacks[kind.to_sym] = callbacks
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems