3rdparty/lua/in-lua-extensions/globals.lua


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--
-- globals.lua
-- Global tables and variables, replacements and extensions to Lua's global functions.
-- Copyright (c) 2002-2009 Jason Perkins and the Premake project
--

--
-- "Immediate If" - returns one of the two values depending on the value of expr.
--

	function iif(expr, trueval, falseval)
		if (expr) then
			return trueval
		else
			return falseval
		end
	end


--
-- A shortcut for printing formatted output.
--

	function printf(msg, ...)
		print(string.format(msg, unpack(arg)))
	end


--
-- An extension to type() to identify project object types by reading the
-- "__type" field from the metatable.
--

	local builtin_type = type
	function type(t)
		local mt = getmetatable(t)
		if (mt) then
			if (mt.__type) then
				return mt.__type
			end
		end
		return builtin_type(t)
	end