view graal/com.oracle.graal.graph.test/src/com/oracle/graal/graph/test/matchers/NodeIterableIsEmpty.java @ 15150:101a31da0dd0

Add Node.replaceAtMatchingUsages(Node, NodePredicate) and some tests. Update JUnit library and make hamcrest a library dependency of junit
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 15 Apr 2014 18:33:33 +0200
parents
children dc3c886e3cca
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/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.graal.graph.test.matchers;

import org.hamcrest.*;
import org.hamcrest.core.*;

import com.oracle.graal.graph.iterators.*;

public class NodeIterableIsEmpty extends BaseMatcher<NodeIterable<?>> {

    private static final NodeIterableIsEmpty INSTANCE = new NodeIterableIsEmpty();

    public boolean matches(Object iterable) {
        return iterable instanceof NodeIterable<?> && ((NodeIterable<?>) iterable).isEmpty();
    }

    public void describeTo(Description description) {
        description.appendText("is an empty NodeIterable");
    }

    public static Matcher<NodeIterable<?>> isEmpty() {
        return INSTANCE;
    }

    public static Matcher<NodeIterable<?>> isNotEmpty() {
        return IsNot.not(INSTANCE);
    }
}