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# frozen_string_literal: true
module Liquid
# StrainerFactory is the factory for the filters system.
module StrainerFactory
extend self
def add_global_filter(filter)
strainer_class_cache.clear
GlobalCache.add_filter(filter)
end
def create(context, filters = [])
strainer_from_cache(filters).new(context)
end
def global_filter_names
GlobalCache.filter_method_names
end
GlobalCache = Class.new(StrainerTemplate)
private
def strainer_from_cache(filters)
if filters.empty?
GlobalCache
else
strainer_class_cache[filters] ||= begin
klass = Class.new(GlobalCache)
filters.each { |f| klass.add_filter(f) }
klass
end
end
end
def strainer_class_cache
@strainer_class_cache ||= {}
end
end
end
|
