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comparison graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/local/SLWriteLocalVariableNode.java @ 13821:b16ec83edc73

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Documentation and more refactoring of Simple Language
author Christian Wimmer <christian.wimmer@oracle.com>
date Wed, 29 Jan 2014 20:45:43 -0800
parents graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/local/WriteLocalNode.java@7c418666c6c9
children 64c77f0577bb
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13820:20e7727588e8 13821:b16ec83edc73
1 /*
2 * Copyright (c) 2012, 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.truffle.sl.nodes.local;
24
25 import com.oracle.truffle.api.*;
26 import com.oracle.truffle.api.dsl.*;
27 import com.oracle.truffle.api.frame.*;
28 import com.oracle.truffle.sl.nodes.*;
29
30 @NodeChild(value = "valueNode")
31 @NodeField(name = "slot", type = FrameSlot.class)
32 public abstract class SLWriteLocalVariableNode extends SLExpressionNode {
33
34 protected abstract FrameSlot getSlot();
35
36 @Specialization(guards = "isLongKind")
37 protected long write(VirtualFrame frame, long value) {
38 frame.setLong(getSlot(), value);
39 return value;
40 }
41
42 @Specialization(guards = "isBooleanKind")
43 protected boolean write(VirtualFrame frame, boolean value) {
44 frame.setBoolean(getSlot(), value);
45 return value;
46 }
47
48 @Specialization
49 protected Object write(VirtualFrame frame, Object value) {
50 if (getSlot().getKind() != FrameSlotKind.Object) {
51 CompilerDirectives.transferToInterpreterAndInvalidate();
52 getSlot().setKind(FrameSlotKind.Object);
53 }
54 frame.setObject(getSlot(), value);
55 return value;
56 }
57
58 protected boolean isLongKind() {
59 return isKind(FrameSlotKind.Long);
60 }
61
62 protected boolean isBooleanKind() {
63 return isKind(FrameSlotKind.Boolean);
64 }
65
66 private boolean isKind(FrameSlotKind kind) {
67 if (getSlot().getKind() == kind) {
68 return true;
69 } else if (getSlot().getKind() == FrameSlotKind.Illegal) {
70 CompilerDirectives.transferToInterpreterAndInvalidate();
71 getSlot().setKind(kind);
72 return true;
73 } else {
74 return false;
75 }
76 }
77 }