Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.interop/src/com/oracle/truffle/interop/SymbolInvokerImpl.java @ 21694:ed731ad12a10
Make stamp of checkcast more precise.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Wed, 03 Jun 2015 13:08:13 +0200 |
parents | ed234a3178af |
children | 2f9e4d984d16 |
line wrap: on
line source
/* * Copyright (c) 2014, 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. 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 java.io.*; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.api.impl.*; import com.oracle.truffle.api.interop.*; import com.oracle.truffle.api.interop.exception.UnsupportedMessageException; import com.oracle.truffle.api.nodes.*; import com.oracle.truffle.interop.messages.*; import com.oracle.truffle.interop.node.*; public final class SymbolInvokerImpl extends SymbolInvoker { static final FrameDescriptor UNUSED_FRAMEDESCRIPTOR = new FrameDescriptor(); @Override protected Object invoke(Object symbol, Object... arr) throws IOException { ForeignObjectAccessNode callMain = ForeignObjectAccessNode.getAccess(Execute.create(Receiver.create(), arr.length)); CallTarget callMainTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(callMain, (TruffleObject) symbol, arr)); VirtualFrame frame = Truffle.getRuntime().createVirtualFrame(arr, UNUSED_FRAMEDESCRIPTOR); Object ret = callMainTarget.call(frame); if (ret instanceof TruffleObject) { TruffleObject tret = (TruffleObject) ret; Object isBoxedResult; try { ForeignObjectAccessNode isBoxed = ForeignObjectAccessNode.getAccess(IsBoxed.create(Receiver.create())); CallTarget isBoxedTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(isBoxed, tret)); isBoxedResult = isBoxedTarget.call(frame); } catch (UnsupportedMessageException ex) { isBoxedResult = false; } if (Boolean.TRUE.equals(isBoxedResult)) { ForeignObjectAccessNode unbox = ForeignObjectAccessNode.getAccess(Unbox.create(Receiver.create())); CallTarget unboxTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(unbox, tret)); Object unboxResult = unboxTarget.call(frame); return unboxResult; } else { try { ForeignObjectAccessNode isNull = ForeignObjectAccessNode.getAccess(IsNull.create(Receiver.create())); CallTarget isNullTarget = Truffle.getRuntime().createCallTarget(new TemporaryRoot(isNull, tret)); Object isNullResult = isNullTarget.call(frame); if (Boolean.TRUE.equals(isNullResult)) { return null; } } catch (UnsupportedMessageException ex) { // fallthrough } } } return ret; } 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); } } }