Keywords

A list of current NPL keywords.

Keyword	Usage
`after`	action time constraint
`become`	state transition
`before`	action time constraint
`between`	action time constraint
`const`	constant definition
`else`	if-else, or a catch-all branch in `match` statement
`final`	state declaration modifier
`function`	function declaration
`guard`	guard clause
`identifier`	identifier declaration
`if`	if and if-else
`is`	type constraint
`init`	protocol initializer
`initial`	state declaration modifier
`match`	statement branching on actual value type
`notification`	notification declaration
`notify`	notification creation
`obligation`	obligation definition
`otherwise`	obligation consequence
`protocol`	protocol definition
`permission`	permission definition
`private`	protocol member visibility modifier
`resume`	notify callback
`require`	require clause
`return`	return statement
`returns`	return type declaration
`state`	state declaration
`struct`	struct declaration
`symbol`	symbol declaration
`this`	protocol self-reference
`union`	union declaration
`update`	update block