Mercurial > hg > graal-jvmci-8
view graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/CallTest.java @ 18279:46e10fe1ade1
made Replacements interface extend Remote
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 06 Nov 2014 13:18:23 +0100 |
parents | 64dcb92ee75a |
children |
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/* * Copyright (c) 2012, 2013, 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.truffle.api.test; import org.junit.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; /** * <h3>Calling Another Tree</h3> * * <p> * A guest language implementation can create multiple call targets using the * {@link TruffleRuntime#createCallTarget(RootNode)} method. Those call targets can be passed around * as normal Java objects and used for calling guest language methods. * </p> * * <p> * The next part of the Truffle API introduction is at * {@link com.oracle.truffle.api.test.ArgumentsTest}. * </p> */ public class CallTest { @Test public void test() { TruffleRuntime runtime = Truffle.getRuntime(); CallTarget foo = runtime.createCallTarget(new ConstantRootNode(20)); CallTarget bar = runtime.createCallTarget(new ConstantRootNode(22)); CallTarget main = runtime.createCallTarget(new DualCallNode(foo, bar)); Object result = main.call(); Assert.assertEquals(42, result); } class DualCallNode extends RootNode { private final CallTarget firstTarget; private final CallTarget secondTarget; DualCallNode(CallTarget firstTarget, CallTarget secondTarget) { super(null); this.firstTarget = firstTarget; this.secondTarget = secondTarget; } @Override public Object execute(VirtualFrame frame) { return ((Integer) firstTarget.call()) + ((Integer) secondTarget.call()); } } class ConstantRootNode extends RootNode { private final int value; public ConstantRootNode(int value) { super(null); this.value = value; } @Override public Object execute(VirtualFrame frame) { return value; } } }