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comparison 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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21555:d12eaef9af72 21556:48c1ebd24120
1 /*
2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.jvmci.code.stack;
24
25 import com.oracle.jvmci.meta.ResolvedJavaMethod;
26
27 public interface InspectedFrame {
28
29 /**
30 * Returns the value of the local at the given index. Currently only works for object values.
31 * This value is a copy iff {@link #isVirtual(int)} is true.
32 */
33 Object getLocal(int index);
34
35 /**
36 * Returns whether the local at the given index is a virtual object, and therefore the object
37 * returned by {@link #getLocal(int)} is a copy.
38 */
39 boolean isVirtual(int index);
40
41 /**
42 * Returns true if the stack frame is a compiled stack frame and there are virtual objects
43 * anywhere in the current state of the compiled method. This can return true even if
44 * {@link #isVirtual(int)} return false for all locals.
45 */
46 boolean hasVirtualObjects();
47
48 /**
49 * This method will materialize all virtual objects, deoptimize the stack frame and make sure
50 * that subsequent execution of the deoptimized frame uses the materialized values.
51 */
52 void materializeVirtualObjects(boolean invalidateCode);
53
54 /**
55 * @return the current bytecode index
56 */
57 int getBytecodeIndex();
58
59 /**
60 * @return the current method
61 */
62 ResolvedJavaMethod getMethod();
63
64 /**
65 * Checks if the current method is equal to the given method. This is semantically equivalent to
66 * {@code method.equals(getMethod())}, but can be implemented more efficiently.
67 */
68 boolean isMethod(ResolvedJavaMethod method);
69 }