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view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLFunctionForeignAccess.java @ 21916:3df76a0300f3
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author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Thu, 11 Jun 2015 11:07:28 +0200 |
parents | c76742cc2c6f |
children |
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/* * Copyright (c) 2014, 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.truffle.sl.runtime; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.Truffle; import com.oracle.truffle.api.frame.VirtualFrame; import com.oracle.truffle.api.nodes.RootNode; import com.oracle.truffle.api.interop.TruffleObject; import com.oracle.truffle.api.interop.ForeignAccess; import com.oracle.truffle.api.interop.Message; import com.oracle.truffle.sl.nodes.call.SLDispatchNode; import com.oracle.truffle.sl.nodes.call.SLDispatchNodeGen; import java.math.BigInteger; import java.util.List; /** * Implementation of foreign access for {@link SLFunction}. */ final class SLFunctionForeignAccess implements ForeignAccess.Factory { public static final ForeignAccess INSTANCE = 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 { throw new IllegalArgumentException(tree.toString() + " not supported"); } } private static class SLForeignCallerRootNode extends RootNode { @Child private SLDispatchNode dispatch = SLDispatchNodeGen.create(); @Override public Object execute(VirtualFrame frame) { SLFunction function = (SLFunction) ForeignAccess.getReceiver(frame); // the calling convention of interop passes the receiver of a // function call (the this object) // as an implicit 1st argument; we need to ignore this argument for SL List<Object> args = ForeignAccess.getArguments(frame); Object[] arr = args.subList(1, args.size()).toArray(); for (int i = 0; i < arr.length; i++) { Object a = arr[i]; if (a instanceof Long) { continue; } if (a instanceof BigInteger) { continue; } if (a instanceof Number) { arr[i] = ((Number) a).longValue(); } } return dispatch.executeDispatch(frame, function, arr); } } private static class SLForeignNullCheckNode extends RootNode { @Override public Object execute(VirtualFrame frame) { Object receiver = ForeignAccess.getReceiver(frame); return SLNull.SINGLETON == receiver; } } }