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Contents
# frozen_string_literal: true
module Synvert::Core
# Helper is used to define shared snippet.
class Helper
attr_reader :name, :block
class << self
# Register a helper with its name.
#
# @param name [String] the unique rewriter name.
# @param helper [Synvert::Core::Helper] the helper to register.
def register(name, helper)
name = name.to_s
helpers[name] = helper
end
# Fetch a helper by name.
#
# @param name [String] rewrtier name.
# @return [Synvert::Core::Helper] the matching helper.
def fetch(name)
name = name.to_s
helpers[name]
end
# Get all available helpers
#
# @return [Hash<String, Synvert::Core::Helper>]
def availables
helpers
end
# Clear all registered helpers.
def clear
helpers.clear
end
private
def helpers
@helpers ||= {}
end
end
# Initialize a Helper.
# When a helper is initialized, it is already registered.
#
# @param name [String] name of the helper.
# @yield defines the behaviors of the helper, block code won't be called when initialization.
def initialize(name, &block)
@name = name
@block = block
self.class.register(name, self)
end
end
end
Version data entries
37 entries across 37 versions & 1 rubygems