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Contents
module Lookbook
class CustomTag < YardTag
supports_options
attr_reader :arg_names, :tag_args
def initialize(tag_name, text = nil, *args)
tag_definition = Engine.tags.get_tag(tag_name)
unless tag_definition
raise ParserError.new "Unknown custom tag type '#{tag_name}'"
end
super(tag_name, text.to_s, *args)
@custom_attributes = Store.new
@arg_names = tag_definition.options.fetch(:named_args, [])
@after_parse = tag_definition.options.fetch(:after_parse, nil)
validate_arg_names
@tag_args = parse_tag
@after_parse.call(self) if @after_parse.respond_to?(:call)
end
# Method aliases to keep compatability with
# the original custom tag implementation
alias_method :tag_body, :text
alias_method :opts, :options
protected
def parse_tag
text_tokens = Shellwords.split(text)
values = text_tokens.slice(0, arg_names.size)
arg_names.map.with_index do |name, i|
[name.to_sym, values[i]]
end.to_h
end
def validate_arg_names
arg_names.each do |name|
if methods.include? name.to_sym
raise ParserError.new "'#{name}' is a reserved word and cannot be used as an argument name."
end
end
end
def method_missing(name, *args)
if name.end_with? "="
@custom_attributes[name.to_s.chomp("=")] = args.first
else
@custom_attributes.public_send(name, *args) || tag_args[name]
end
end
def respond_to_missing?(name, include_private)
@custom_attributes.key?(name) || tag_args.key?(name) || super
end
end
end
Version data entries
40 entries across 40 versions & 1 rubygems