Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLFunctionForeignAccess.java @ 21490:3286fb5fea4a
Introducing standard I/O and error into Env and using TruffleVM to execute SL test cases. Adding SLTckTest to verify SL language interop.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
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date | Tue, 26 May 2015 19:11:36 +0200 |
parents | |
children | ed234a3178af |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/runtime/SLFunctionForeignAccess.java Tue May 26 19:11:36 2015 +0200 @@ -0,0 +1,90 @@ +/* + * 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.interop.ForeignAccessFactory; +import com.oracle.truffle.api.interop.InteropPredicate; +import com.oracle.truffle.api.interop.exception.UnsupportedMessageException; +import com.oracle.truffle.api.interop.messages.Message; +import com.oracle.truffle.api.nodes.RootNode; +import com.oracle.truffle.interop.ForeignAccessArguments; +import com.oracle.truffle.interop.messages.Execute; +import com.oracle.truffle.interop.messages.Receiver; +import com.oracle.truffle.sl.nodes.call.SLDispatchNode; +import com.oracle.truffle.sl.nodes.call.SLDispatchNodeGen; +import java.math.BigInteger; + +/** + * Implementation of foreing access for {@link SLFunction}. + */ +final class SLFunctionForeignAccess implements ForeignAccessFactory { + public static final ForeignAccessFactory INSTANCE = new SLFunctionForeignAccess(); + + private SLFunctionForeignAccess() { + } + + @Override + public InteropPredicate getLanguageCheck() { + return (com.oracle.truffle.api.interop.TruffleObject o) -> o instanceof SLFunction; + } + + @Override + public CallTarget getAccess(Message tree) { + if (Execute.create(Receiver.create(), 0).matchStructure(tree)) { + return Truffle.getRuntime().createCallTarget(new SLForeignCallerRootNode()); + } else { + throw new UnsupportedMessageException(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) ForeignAccessArguments.getReceiver(frame.getArguments()); + // 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 + Object[] arguments = ForeignAccessArguments.extractUserArguments(1, frame.getArguments()); + for (int i = 0; i < arguments.length; i++) { + if (arguments[i] instanceof Long) { + continue; + } + if (arguments[i] instanceof BigInteger) { + continue; + } + if (arguments[i] instanceof Number) { + arguments[i] = ((Number) arguments[i]).longValue(); + } + } + + return dispatch.executeDispatch(frame, function, arguments); + } + + } + +}