# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# THE SOFTWARE.

require_relative 'wrapper'

require 'coverage'

module Covered
	class Cache < Wrapper
		def initialize(output)
			super(output)
			
			@marks = nil
		end
		
		def mark(path, lineno, count = 1)
			if @marks
				@marks << path << lineno << count
			else
				super
			end
		end
		
		def enable
			@marks = []
			
			super
		end
		
		def flush
			if @marks
				@marks.each_slice(3) do |path, lineno, count|
					@output.mark(path, lineno, count)
				end
				
				@marks = nil
			end
			
			super
		end
		
		def disable
			super
			
			flush
		end
	end
end