Mercurial > hg > truffle
view truffle/com.oracle.truffle.tck/src/com/oracle/truffle/tck/StructuredData.java @ 22499:9bba3a7b34be
Check foreign arguments when accessing ComplexNumber/Sequence objects
author | Matthias Grimmer <grimmer@ssw.jku.at> |
---|---|
date | Mon, 14 Dec 2015 15:07:19 +0100 |
parents | ec40768d77a6 |
children | 89db2519ef18 |
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/* * Copyright (c) 2015, 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.tck; 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.ForeignAccess.Factory; import com.oracle.truffle.api.interop.Message; import com.oracle.truffle.api.interop.TruffleObject; import com.oracle.truffle.api.nodes.RootNode; final class StructuredData implements TruffleObject { private final byte[] buffer; private final Schema schema; StructuredData(byte[] buffer, Schema schema) { this.buffer = buffer; this.schema = schema; } public ForeignAccess getForeignAccess() { return ForeignAccess.create(new StructuredDataForeignAccessFactory()); } private static class StructuredDataForeignAccessFactory implements Factory { public boolean canHandle(TruffleObject obj) { return obj instanceof StructuredData; } public CallTarget accessMessage(Message tree) { // for simplicity: this StructuredData is read-only if (Message.IS_NULL.equals(tree)) { return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false)); } else if (Message.IS_EXECUTABLE.equals(tree)) { return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false)); } else if (Message.IS_BOXED.equals(tree)) { return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(false)); } else if (Message.HAS_SIZE.equals(tree)) { return Truffle.getRuntime().createCallTarget(RootNode.createConstantNode(true)); } else if (Message.READ.equals(tree)) { return Truffle.getRuntime().createCallTarget(new StructuredDataReadNode()); } else if (Message.GET_SIZE.equals(tree)) { return Truffle.getRuntime().createCallTarget(new StructuredDataSizeNode()); } else { throw new IllegalArgumentException(tree.toString() + " not supported"); } } } private static class StructuredDataReadNode extends RootNode { protected StructuredDataReadNode() { super(TckLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { StructuredData data = (StructuredData) ForeignAccess.getReceiver(frame); Number index = TckLanguage.expectNumber(ForeignAccess.getArguments(frame).get(0)); int idx = TckLanguage.checkBounds(index.intValue(), data.schema.length()); return new StructuredDataEntry(data.buffer, data.schema, idx); } } private static class StructuredDataSizeNode extends RootNode { protected StructuredDataSizeNode() { super(TckLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { StructuredData data = (StructuredData) ForeignAccess.getReceiver(frame); return data.schema.length(); } } }