Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.interop/src/com/oracle/truffle/interop/SymbolInvokerImpl.java @ 21468:99942eac9c6d
Introducing TruffleVM - a central place to invoke code in any registered TruffleLanguage.
author | Jaroslav Tulach <jaroslav.tulach@oracle.com> |
---|---|
date | Fri, 22 May 2015 13:41:10 +0200 |
parents | |
children | b1530a6cce8c ffdd2ec86f42 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.interop/src/com/oracle/truffle/interop/SymbolInvokerImpl.java Fri May 22 13:41:10 2015 +0200 @@ -0,0 +1,67 @@ +/* + * Copyright (c) 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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.interop; + +import com.oracle.truffle.api.CallTarget; +import com.oracle.truffle.api.Truffle; +import com.oracle.truffle.api.frame.FrameDescriptor; +import com.oracle.truffle.api.frame.VirtualFrame; +import com.oracle.truffle.api.interop.TruffleObject; +import com.oracle.truffle.api.impl.SymbolInvoker; +import com.oracle.truffle.api.nodes.RootNode; +import com.oracle.truffle.interop.messages.Execute; +import com.oracle.truffle.interop.messages.Receiver; +import com.oracle.truffle.interop.node.ForeignObjectAccessNode; +import java.io.IOException; + +public final class SymbolInvokerImpl extends SymbolInvoker { + static final FrameDescriptor UNUSED_FRAMEDESCRIPTOR = new FrameDescriptor(); + + @Override + protected Object invoke(Object symbol, Object... arr) throws IOException { + ForeignObjectAccessNode executeMain = ForeignObjectAccessNode.getAccess(Execute.create(Receiver.create(), arr.length)); + CallTarget callTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(executeMain, (TruffleObject) symbol, arr)); + VirtualFrame frame = Truffle.getRuntime().createVirtualFrame(arr, UNUSED_FRAMEDESCRIPTOR); + return callTarget.call(frame); + } + + private static class TemporaryRoot extends RootNode { + @Child private ForeignObjectAccessNode foreignAccess; + private final TruffleObject function; + private final Object[] args; + + public TemporaryRoot(ForeignObjectAccessNode foreignAccess, TruffleObject function, Object... args) { + this.foreignAccess = foreignAccess; + this.function = function; + this.args = args; + } + + @Override + public Object execute(VirtualFrame frame) { + return foreignAccess.executeForeign(frame, function, args); + } + } + +}