If and Else as methods (as like Smalltalk)...

ifelse_methods.lua

-- if and else as methods (test) --

-- object --
local logic = { main = nil }

-- if method --
function logic: so(code)
	if self.main then
		code( )
	end
	return self
end

-- else method --
function logic: otherwise(code)
	if not self.main then
		code( )
	end
	return
end

-- closure to emulate a block --
function say(message)
	return function ( )
		print(message)
	end
end

------------------------------------

function logic: assign(value)
	self.main = value
	return
end

function logic: valid(expression)
	self: assign(expression)
	return self
end

------------------------------------

logic: valid(15 <= 5):
	so(say "Yes, less or equal than!"):
		otherwise(say "Not! Greater than...")

-- end of script --