_ = x[OpNoMatch-1]
	_ = x[OpEmptyMatch-2]
	_ = x[OpLiteral-3]
	_ = x[OpCharClass-4]
	_ = x[OpAnyCharNotNL-5]
	_ = x[OpAnyChar-6]
	_ = x[OpBeginLine-7]
	_ = x[OpEndLine-8]
	_ = x[OpBeginText-9]
	_ = x[OpEndText-10]
	_ = x[OpWordBoundary-11]
	_ = x[OpNoWordBoundary-12]
	_ = x[OpCapture-13]
	_ = x[OpStar-14]
	_ = x[OpPlus-15]
	_ = x[OpQuest-16]
	_ = x[OpRepeat-17]
	_ = x[OpConcat-18]
	_ = x[OpAlternate-19]