nl_tokens: Stores a promise in a thenable so that it fires only when used . Calling Promise . reject ( error ) otherwise throws a global error .
pl_tokens: function StoredPromise ( init ) { this . _resolve = value => { this . _resolved = true ; this . _value = <mask> } this . _reject = value => { this . _rejected = true ; this . _value = value ; } init ( value => { this . _resolve ( value ) } , value => { this . _reject ( value ) } ) ; }