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annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin.java @ 21554:b1530a6cce8c

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renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 23:21:15 +0200
parents b4e38f4ca414
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1 /*
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2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.sl.builtins;
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25 import com.oracle.truffle.api.CompilerDirectives.TruffleBoundary;
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26 import com.oracle.truffle.api.*;
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27 import com.oracle.truffle.api.dsl.*;
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28 import com.oracle.truffle.api.frame.*;
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29 import com.oracle.truffle.api.frame.FrameInstance.FrameAccess;
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30 import com.oracle.truffle.api.nodes.*;
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31 import com.oracle.truffle.api.source.*;
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32
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33 /**
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34 * This builtin sets the variable named "hello" in the caller frame to the string "world".
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35 */
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36 @NodeInfo(shortName = "helloEqualsWorld")
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37 public abstract class SLHelloEqualsWorldBuiltin extends SLBuiltinNode {
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38
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39 public SLHelloEqualsWorldBuiltin() {
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40 super(new NullSourceSection("SL builtin", "helloEqualsWorld"));
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41 }
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42
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43 @Specialization
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44 @TruffleBoundary
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45 public String change() {
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46 FrameInstance frameInstance = Truffle.getRuntime().getCallerFrame();
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47 Frame frame = frameInstance.getFrame(FrameAccess.READ_WRITE, false);
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48 FrameSlot slot = frame.getFrameDescriptor().findOrAddFrameSlot("hello");
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49 frame.setObject(slot, "world");
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50 return "world";
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51 }
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52 }