Mercurial > hg > graal-compiler
view graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/ReadUninitializedNode.java @ 13745:978587c91373
Merge
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 23 Jan 2014 16:35:57 -0800 |
parents | 71991b7a0f14 |
children |
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/* * Copyright (c) 2012, 2012, 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.nodes; import com.oracle.truffle.api.*; import com.oracle.truffle.api.frame.*; import com.oracle.truffle.sl.runtime.*; public class ReadUninitializedNode extends TypedNode { private final SLContext context; private final FrameSlot slot; public ReadUninitializedNode(SLContext context, FrameSlot slot) { this.context = context; this.slot = slot; } public FrameSlot getSlot() { return slot; } @Override public Object executeGeneric(VirtualFrame frame) { CompilerDirectives.transferToInterpreter(); Object result = frame.getValue(slot); String identifier = (String) slot.getIdentifier(); if (result == null) { // function access return replace(new ReadFunctionNode(context.getFunctionRegistry(), identifier)).executeGeneric(frame); } else { // local variable access return replace(ReadLocalNodeFactory.create(slot)).executeGeneric(frame); } } }