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comparison graal/com.oracle.truffle.api/src/com/oracle/truffle/api/frame/FrameUtil.java @ 9258:07f8d136a05e

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Truffle API changes for the Frame API. Introduction of Assumptions class.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Tue, 23 Apr 2013 15:34:06 +0200
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children cd1a1d92b3e3
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9257:542712a4732a 9258:07f8d136a05e
1 /*
2 * Copyright (c) 2013, 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.truffle.api.frame;
24
25 public final class FrameUtil {
26
27 /**
28 * Write access to a local variable of type {@link Object}.
29 *
30 * Sets the frame slot type to {@link Object} if it isn't already.
31 *
32 * @param slot the slot of the local variable
33 * @param value the new value of the local variable
34 */
35 public static void setObjectSafe(Frame frame, FrameSlot slot, Object value) {
36 if (slot.getType() != Object.class) {
37 slot.setType(Object.class);
38 }
39 try {
40 frame.setObject(slot, value);
41 } catch (FrameSlotTypeException e) {
42 throw new IllegalStateException();
43 }
44 }
45
46 /**
47 * Write access to a local variable of type {@code boolean}.
48 *
49 * Sets the frame slot type to {@code boolean} if it isn't already.
50 *
51 * @param slot the slot of the local variable
52 * @param value the new value of the local variable
53 */
54 public static void setBooleanSafe(Frame frame, FrameSlot slot, boolean value) {
55 if (slot.getType() != boolean.class) {
56 slot.setType(boolean.class);
57 }
58 try {
59 frame.setBoolean(slot, value);
60 } catch (FrameSlotTypeException e) {
61 throw new IllegalStateException();
62 }
63 }
64
65 /**
66 * Write access to a local variable of type {@code int}.
67 *
68 * Sets the frame slot type to {@code int} if it isn't already.
69 *
70 * @param slot the slot of the local variable
71 * @param value the new value of the local variable
72 */
73 public static void setIntSafe(Frame frame, FrameSlot slot, int value) {
74 if (slot.getType() != int.class) {
75 slot.setType(int.class);
76 }
77 try {
78 frame.setInt(slot, value);
79 } catch (FrameSlotTypeException e) {
80 throw new IllegalStateException();
81 }
82 }
83
84 /**
85 * Write access to a local variable of type {@code long}.
86 *
87 * Sets the frame slot type to {@code long} if it isn't already.
88 *
89 * @param slot the slot of the local variable
90 * @param value the new value of the local variable
91 */
92 public static void setLongSafe(Frame frame, FrameSlot slot, long value) {
93 if (slot.getType() != long.class) {
94 slot.setType(long.class);
95 }
96 try {
97 frame.setLong(slot, value);
98 } catch (FrameSlotTypeException e) {
99 throw new IllegalStateException();
100 }
101 }
102
103 /**
104 * Write access to a local variable of type {@code float}.
105 *
106 * Sets the frame slot type to {@code float} if it isn't already.
107 *
108 * @param slot the slot of the local variable
109 * @param value the new value of the local variable
110 */
111 public static void setFloatSafe(Frame frame, FrameSlot slot, float value) {
112 if (slot.getType() != float.class) {
113 slot.setType(float.class);
114 }
115 try {
116 frame.setFloat(slot, value);
117 } catch (FrameSlotTypeException e) {
118 throw new IllegalStateException();
119 }
120 }
121
122 /**
123 * Write access to a local variable of type {@code double}.
124 *
125 * Sets the frame slot type to {@code double} if it isn't already.
126 *
127 * @param slot the slot of the local variable
128 * @param value the new value of the local variable
129 */
130 public static void setDoubleSafe(Frame frame, FrameSlot slot, double value) {
131 if (slot.getType() != double.class) {
132 slot.setType(double.class);
133 }
134 try {
135 frame.setDouble(slot, value);
136 } catch (FrameSlotTypeException e) {
137 throw new IllegalStateException();
138 }
139 }
140 }