Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.api.dsl.test/src/com/oracle/truffle/api/dsl/test/examples/ExampleNode.java @ 20979:65d8d305f9c0
Minor linear scan tweaks
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Tue, 14 Apr 2015 11:37:18 -0700 |
parents | a79a3e467245 |
children |
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/* * Copyright (c) 2015, 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.dsl.test.examples; import com.oracle.truffle.api.*; import com.oracle.truffle.api.dsl.*; import com.oracle.truffle.api.dsl.internal.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.nodes.*; @TypeSystemReference(ExampleTypes.class) @NodeChild(value = "args", type = ExampleNode[].class) public abstract class ExampleNode extends Node { public Object execute(@SuppressWarnings("unused") VirtualFrame frame) { // will get implemented by the DSL. throw new UnsupportedOperationException(); } @Override public String toString() { if (this instanceof SpecializedNode) { return ((SpecializedNode) this).getSpecializationNode().toString(); } else { return super.toString(); } } public static CallTarget createTarget(ExampleNode node) { return Truffle.getRuntime().createCallTarget(new ExampleRootNode(node)); } @SuppressWarnings("unchecked") public static <T> T getNode(CallTarget target) { return (T) ((ExampleRootNode) ((RootCallTarget) target).getRootNode()).child; } public static ExampleNode[] createArguments(int count) { ExampleNode[] nodes = new ExampleNode[count]; for (int i = 0; i < count; i++) { nodes[i] = new ExampleArgumentNode(i); } return nodes; } private static class ExampleRootNode extends RootNode { @Child ExampleNode child; public ExampleRootNode(ExampleNode child) { this.child = child; } @Override public Object execute(VirtualFrame frame) { return child.execute(frame); } } private static class ExampleArgumentNode extends ExampleNode { private final int index; public ExampleArgumentNode(int index) { this.index = index; } @Override public Object execute(VirtualFrame frame) { Object[] arguments = frame.getArguments(); if (index < arguments.length) { return arguments[index]; } return null; } } public static CallTarget createDummyTarget(int argumentIndex) { return Truffle.getRuntime().createCallTarget(new DummyCallRootNode(argumentIndex)); } private static class DummyCallRootNode extends RootNode { private final int argumentIndex; public DummyCallRootNode(int argumentIndex) { this.argumentIndex = argumentIndex; } @Override public Object execute(VirtualFrame frame) { return frame.getArguments()[argumentIndex]; } @Override public String toString() { return "DummyRootNode[arg = " + argumentIndex + "]"; } } }