Mercurial > hg > truffle
view truffle/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLFunctionForeignAccess.java @ 22548:6b76a24fffbd default tip
Use all variables: a, b, u,v and x, y
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Thu, 14 Jan 2016 14:20:57 +0100 |
parents | 46a6d3eb790c |
children |
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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. * * The Universal Permissive License (UPL), Version 1.0 * * Subject to the condition set forth below, permission is hereby granted to any * person obtaining a copy of this software, associated documentation and/or * data (collectively the "Software"), free of charge and under any and all * copyright rights in the Software, and any and all patent rights owned or * freely licensable by each licensor hereunder covering either (i) the * unmodified Software as contributed to or provided by such licensor, or (ii) * the Larger Works (as defined below), to deal in both * * (a) the Software, and * * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if * one is included with the Software each a "Larger Work" to which the Software * is contributed by such licensors), * * without restriction, including without limitation the rights to copy, create * derivative works of, display, perform, and distribute the Software and make, * use, sell, offer for sale, import, export, have made, and have sold the * Software and the Larger Work(s), and to sublicense the foregoing rights on * either these or other terms. * * This license is subject to the following condition: * * The above copyright notice and either this complete permission notice or at a * minimum a reference to the UPL must be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package com.oracle.truffle.sl.runtime; import static com.oracle.truffle.sl.runtime.SLContext.fromForeignValue; import java.util.List; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.Truffle; import com.oracle.truffle.api.frame.VirtualFrame; import com.oracle.truffle.api.interop.ForeignAccess; import com.oracle.truffle.api.interop.Message; import com.oracle.truffle.api.interop.TruffleObject; import com.oracle.truffle.api.nodes.RootNode; import com.oracle.truffle.sl.SLLanguage; import com.oracle.truffle.sl.nodes.call.SLDispatchNode; import com.oracle.truffle.sl.nodes.call.SLDispatchNodeGen; /** * Implementation of foreign access for {@link SLFunction}. */ final class SLFunctionForeignAccess implements ForeignAccess.Factory { public static ForeignAccess create() { return ForeignAccess.create(new SLFunctionForeignAccess()); } private SLFunctionForeignAccess() { } @Override public boolean canHandle(TruffleObject o) { return o instanceof SLFunction; } @Override public CallTarget accessMessage(Message tree) { if (Message.createExecute(0).equals(tree)) { return Truffle.getRuntime().createCallTarget(new SLForeignCallerRootNode()); } else if (Message.IS_NULL.equals(tree)) { return Truffle.getRuntime().createCallTarget(new SLForeignNullCheckNode()); } else if (Message.IS_EXECUTABLE.equals(tree)) { return Truffle.getRuntime().createCallTarget(new SLForeignExecutableCheckNode()); } else if (Message.IS_BOXED.equals(tree)) { return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false)); } else { throw new IllegalArgumentException(tree.toString() + " not supported"); } } private static class SLForeignCallerRootNode extends RootNode { @Child private SLDispatchNode dispatch = SLDispatchNodeGen.create(); public SLForeignCallerRootNode() { super(SLLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { SLFunction function = (SLFunction) ForeignAccess.getReceiver(frame); List<Object> args = ForeignAccess.getArguments(frame); Object[] arr = args.toArray(); for (int i = 0; i < arr.length; i++) { arr[i] = fromForeignValue(arr[i]); } Object result = dispatch.executeDispatch(frame, function, arr); return result; } } private static class SLForeignNullCheckNode extends RootNode { public SLForeignNullCheckNode() { super(SLLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { Object receiver = ForeignAccess.getReceiver(frame); return SLNull.SINGLETON == receiver; } } private static class SLForeignExecutableCheckNode extends RootNode { public SLForeignExecutableCheckNode() { super(SLLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { Object receiver = ForeignAccess.getReceiver(frame); return receiver instanceof SLFunction; } } }