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Contents
# frozen_string_literal: true
module Handlebarsjs
# Extend base helper for each of your custom handlebars-helpers
class BaseHelper
attr_reader :cmdlet
# Preferred way to register the internal command is via register_cmdlet
# but you can also register the command directly in the initializer and
# that can be handy if you use a custom configured cmdlet
def initialize(cmdlet = nil)
@cmdlet = cmdlet
@cmdlet = self.class.cmdlet.new if @cmdlet.nil? && self.class.cmdlet
end
class << self
attr_reader :cmdlet
def register_cmdlet(cmdlet)
@cmdlet = cmdlet
end
end
# If you need to wrap the return value in a specific
# Handlebars Type, eg. SafeString, then you can override this method
def wrapper(value)
value
end
# Wrap the cmdlet call method in a handlebars context aware block
# and return as a lambda/proc so that it is available to the
# Handlebars template engine
def to_proc
->(value, _opts) { wrapper(cmdlet.call(value)) }
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems