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comparison src/share/vm/ci/ciArrayKlass.cpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1999-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 #include "incls/_precompiled.incl"
26 #include "incls/_ciArrayKlass.cpp.incl"
27
28 // ciArrayKlass
29 //
30 // This class represents a klassOop in the HotSpot virtual machine
31 // whose Klass part in an arrayKlass.
32
33 // ------------------------------------------------------------------
34 // ciArrayKlass::ciArrayKlass
35 //
36 // Loaded array klass.
37 ciArrayKlass::ciArrayKlass(KlassHandle h_k) : ciKlass(h_k) {
38 assert(get_Klass()->oop_is_array(), "wrong type");
39 _dimension = get_arrayKlass()->dimension();
40 }
41
42 // ------------------------------------------------------------------
43 // ciArrayKlass::ciArrayKlass
44 //
45 // Unloaded array klass.
46 ciArrayKlass::ciArrayKlass(ciSymbol* name, int dimension, ciKlass* klass)
47 : ciKlass(name, klass) {
48 _dimension = dimension;
49 }
50
51 // ------------------------------------------------------------------
52 // ciArrayKlass::element_type
53 //
54 // What type is obtained when this array is indexed once?
55 ciType* ciArrayKlass::element_type() {
56 if (is_type_array_klass()) {
57 return ciType::make(as_type_array_klass()->element_type());
58 } else {
59 return as_obj_array_klass()->element_klass()->as_klass();
60 }
61 }
62
63
64 // ------------------------------------------------------------------
65 // ciArrayKlass::base_element_type
66 //
67 // What type is obtained when this array is indexed as many times as possible?
68 ciType* ciArrayKlass::base_element_type() {
69 if (is_type_array_klass()) {
70 return ciType::make(as_type_array_klass()->element_type());
71 } else {
72 ciKlass* ek = as_obj_array_klass()->base_element_klass();
73 if (ek->is_type_array_klass()) {
74 return ciType::make(ek->as_type_array_klass()->element_type());
75 }
76 return ek;
77 }
78 }
79
80
81 // ------------------------------------------------------------------
82 // ciArrayKlass::is_leaf_type
83 bool ciArrayKlass::is_leaf_type() {
84 if (is_type_array_klass()) {
85 return true;
86 } else {
87 return as_obj_array_klass()->base_element_klass()->is_leaf_type();
88 }
89 }
90
91
92 // ------------------------------------------------------------------
93 // ciArrayKlass::base_element_type
94 //
95 // What type is obtained when this array is indexed as many times as possible?
96 ciArrayKlass* ciArrayKlass::make(ciType* element_type) {
97 if (element_type->is_primitive_type()) {
98 return ciTypeArrayKlass::make(element_type->basic_type());
99 } else {
100 return ciObjArrayKlass::make(element_type->as_klass());
101 }
102 }