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Java example source code file (SeqIterator.java)
The SeqIterator.java Java example source code/** * Copyright (c) Rich Hickey. All rights reserved. * The use and distribution terms for this software are covered by the * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) * which can be found in the file epl-v10.html at the root of this distribution. * By using this software in any fashion, you are agreeing to be bound by * the terms of this license. * You must not remove this notice, or any other, from this software. **/ /* rich Jun 19, 2007 */ package clojure.lang; import java.util.Iterator; import java.util.NoSuchElementException; public class SeqIterator implements Iterator{ static final Object START = new Object(); Object seq; Object next; public SeqIterator(Object o){ seq = START; next = o; } //preserved for binary compatibility public SeqIterator(ISeq o){ seq = START; next = o; } public boolean hasNext(){ if(seq == START){ seq = null; next = RT.seq(next); } else if(seq == next) next = RT.next(seq); return next != null; } public Object next() throws NoSuchElementException { if(!hasNext()) throw new NoSuchElementException(); seq = next; return RT.first(next); } public void remove(){ throw new UnsupportedOperationException(); } } Other Java examples (source code examples)Here is a short list of links related to this Java SeqIterator.java source code file: |
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