protected Pair < Integer , SyntacticItem [ ] > readItems ( ) throws IOException { // first, write magic number checkHeader ( ) ; // second, determine number of items int size = in . read_uv ( ) ; // third, determine the root item int root = in . read_uv ( ) ; // Bytecode [ ] items = new Bytecode [ size ] ; // third, read abstract syntactic items for ( int i = 0 ; i != items . length ; ++ i ) { items [ i ] = readItem ( ) ; } // return new Pair <> ( root , constructItems ( items ) ) ; }
Read all the items in this heap returning the identified root item and an array of all items contained therein .