nl_tokens: Returns the mirror for a specified value or object .
pl_tokens: function MakeMirror ( value , opt_transient ) { var mirror ; // Look for non transient mirrors in the mirror cache. if ( ! opt_transient && mirror_cache_enabled_ ) { for ( var id in mirror_cache_ ) { mirror = mirror_cache_ [ id ] ; if ( mirror . value ( ) === value ) { return mirror ; } // Special check for NaN as NaN == NaN is false. if ( mirror . isNumber ( ) && IsNaN ( mirror . value ( ) ) && typeof value == 'number' && IsNaN ( value ) ) { return mirror ; } } } if ( IS_UNDEFINED ( value ) ) { mirror = new UndefinedMirror ( ) ; } else if ( IS_NULL ( value ) ) { mirror = new NullMirror ( ) ; } else if ( IS_BOOLEAN ( value ) ) { mirror = new BooleanMirror ( value ) ; } else if ( IS_NUMBER ( value ) ) { mirror = new NumberMirror ( value ) ; } else if ( IS_STRING ( value ) ) { mirror = new StringMirror ( value ) ; } else if ( IS_SYMBOL ( value ) ) { mirror = new SymbolMirror ( value ) ; } else if ( IS_ARRAY ( value ) ) { mirror = new ArrayMirror ( value ) ; } else if ( IS_DATE ( value ) ) { mirror = new DateMirror ( value ) ; } else if ( IS_FUNCTION ( value ) ) { mirror = new FunctionMirror ( value ) ; } else if ( IS_REGEXP ( value ) ) { mirror = new RegExpMirror ( value ) ; } else if ( IS_ERROR ( value ) ) { mirror = new ErrorMirror ( value ) ; } else if ( IS_SCRIPT ( value ) ) { mirror = <mask> ScriptMirror ( value ) ; } else if ( IS_MAP ( value ) || IS_WEAKMAP ( value ) ) { mirror = new MapMirror ( value ) ; } else if ( IS_SET ( value ) || IS_WEAKSET ( value ) ) { mirror = new SetMirror ( value ) ; } else if ( IS_MAP_ITERATOR ( value ) || IS_SET_ITERATOR ( value ) ) { mirror = new IteratorMirror ( value ) ; } else if ( ObjectIsPromise ( value ) ) { mirror = new PromiseMirror ( value ) ; } else if ( IS_GENERATOR ( value ) ) { mirror = new GeneratorMirror ( value ) ; } else { mirror = new ObjectMirror ( value , MirrorType . OBJECT_TYPE , opt_transient ) ; } if ( mirror_cache_enabled_ ) mirror_cache_ [ mirror . handle ( ) ] = mirror ; return mirror ; }