nl_tokens: 3 . 1 . 7 . 1 OrdinaryOwnMetadataKeys ( O P ) https : // rbuckton . github . io / reflect - metadata / #ordinaryownmetadatakeys
pl_tokens: function OrdinaryOwnMetadataKeys ( O , P ) { var keys = [ ] ; var metadataMap = GetOrCreateMetadataMap ( O , P , /*Create*/ false ) ; if ( IsUndefined ( metadataMap ) ) return keys ; var keysObj = metadataMap . <mask> ( ) ; var iterator = GetIterator ( keysObj ) ; var k = 0 ; while ( true ) { var next = IteratorStep ( iterator ) ; if ( ! next ) { keys . length = k ; return keys ; } var nextValue = IteratorValue ( next ) ; try { keys [ k ] = nextValue ; } catch ( e ) { try { IteratorClose ( iterator ) ; } finally { throw e ; } } k ++ ; } }