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annotate graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/stack/InspectedFrame.java @ 21556:48c1ebd24120

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renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Wed, 27 May 2015 00:36:16 +0200
parents graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/stack/InspectedFrame.java@f6ac86d3334e
children
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1 /*
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2 * Copyright (c) 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.jvmci.code.stack;
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24
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25 import com.oracle.jvmci.meta.ResolvedJavaMethod;
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26
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27 public interface InspectedFrame {
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28
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29 /**
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30 * Returns the value of the local at the given index. Currently only works for object values.
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31 * This value is a copy iff {@link #isVirtual(int)} is true.
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32 */
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33 Object getLocal(int index);
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34
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35 /**
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36 * Returns whether the local at the given index is a virtual object, and therefore the object
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37 * returned by {@link #getLocal(int)} is a copy.
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38 */
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39 boolean isVirtual(int index);
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40
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41 /**
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42 * Returns true if the stack frame is a compiled stack frame and there are virtual objects
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43 * anywhere in the current state of the compiled method. This can return true even if
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44 * {@link #isVirtual(int)} return false for all locals.
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45 */
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46 boolean hasVirtualObjects();
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47
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48 /**
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49 * This method will materialize all virtual objects, deoptimize the stack frame and make sure
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50 * that subsequent execution of the deoptimized frame uses the materialized values.
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51 */
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52 void materializeVirtualObjects(boolean invalidateCode);
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53
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54 /**
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55 * @return the current bytecode index
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56 */
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57 int getBytecodeIndex();
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58
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59 /**
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60 * @return the current method
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61 */
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62 ResolvedJavaMethod getMethod();
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63
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64 /**
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65 * Checks if the current method is equal to the given method. This is semantically equivalent to
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66 * {@code method.equals(getMethod())}, but can be implemented more efficiently.
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67 */
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68 boolean isMethod(ResolvedJavaMethod method);
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69 }