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[Truffle] Allow the YAML parser to compile.
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truffle/src/main/java/org/jruby/truffle/util/BoundaryUtils.java
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/* | ||
* Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved. This | ||
* code is released under a tri EPL/GPL/LGPL license. You can use it, | ||
* redistribute it and/or modify it under the terms of the: | ||
* | ||
* Eclipse Public License version 1.0 | ||
* GNU General Public License version 2 | ||
* GNU Lesser General Public License version 2.1 | ||
*/ | ||
package org.jruby.truffle.util; | ||
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import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary; | ||
import java.util.Iterator; | ||
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public class BoundaryUtils { | ||
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public static class BoundaryIterable<E> implements Iterable<E> { | ||
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public static <E> Iterable<E> wrap(Iterable<E> iterable) { | ||
return new BoundaryIterable<>(iterable); | ||
} | ||
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private final Iterable<E> iterable; | ||
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public BoundaryIterable(Iterable<E> iterable) { | ||
this.iterable = iterable; | ||
} | ||
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@Override | ||
public Iterator<E> iterator() { | ||
return new BoundaryIterator<E>(iterable.iterator()); | ||
} | ||
} | ||
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public static class BoundaryIterator<E> implements Iterator<E> { | ||
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private final Iterator<E> iterator; | ||
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public BoundaryIterator(Iterator<E> iterator) { | ||
this.iterator = iterator; | ||
} | ||
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@TruffleBoundary | ||
@Override | ||
public boolean hasNext() { | ||
return iterator.hasNext(); | ||
} | ||
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@TruffleBoundary | ||
@Override | ||
public E next() { | ||
return iterator.next(); | ||
} | ||
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} | ||
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} |