1
|
1 |
/*
|
|
2 |
* Copyright 2000-2002 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/_ciType.cpp.incl"
|
|
27 |
|
|
28 |
ciType* ciType::_basic_types[T_CONFLICT+1];
|
|
29 |
|
|
30 |
// ciType
|
|
31 |
//
|
|
32 |
// This class represents either a class (T_OBJECT), array (T_ARRAY),
|
|
33 |
// or one of the primitive types such as T_INT.
|
|
34 |
|
|
35 |
// ------------------------------------------------------------------
|
|
36 |
// ciType::ciType
|
|
37 |
//
|
|
38 |
ciType::ciType(BasicType basic_type) : ciObject() {
|
|
39 |
assert(basic_type >= T_BOOLEAN && basic_type <= T_CONFLICT, "range check");
|
|
40 |
assert(basic_type != T_OBJECT && basic_type != T_ARRAY, "not a reference type");
|
|
41 |
_basic_type = basic_type;
|
|
42 |
}
|
|
43 |
|
|
44 |
ciType::ciType(KlassHandle k) : ciObject(k) {
|
|
45 |
_basic_type = Klass::cast(k())->oop_is_array() ? T_ARRAY : T_OBJECT;
|
|
46 |
}
|
|
47 |
|
|
48 |
ciType::ciType(ciKlass* klass) : ciObject(klass) {
|
|
49 |
_basic_type = klass->is_array_klass_klass() ? T_ARRAY : T_OBJECT;
|
|
50 |
}
|
|
51 |
|
|
52 |
|
|
53 |
// ------------------------------------------------------------------
|
|
54 |
// ciType::is_subtype_of
|
|
55 |
//
|
|
56 |
bool ciType::is_subtype_of(ciType* type) {
|
|
57 |
if (this == type) return true;
|
|
58 |
if (is_klass() && type->is_klass())
|
|
59 |
return this->as_klass()->is_subtype_of(type->as_klass());
|
|
60 |
return false;
|
|
61 |
}
|
|
62 |
|
|
63 |
// ------------------------------------------------------------------
|
|
64 |
// ciType::print_impl
|
|
65 |
//
|
|
66 |
// Implementation of the print method.
|
|
67 |
void ciType::print_impl(outputStream* st) {
|
|
68 |
st->print(" type=");
|
|
69 |
print_name_on(st);
|
|
70 |
}
|
|
71 |
|
|
72 |
// ------------------------------------------------------------------
|
|
73 |
// ciType::print_name
|
|
74 |
//
|
|
75 |
// Print the name of this type
|
|
76 |
void ciType::print_name_on(outputStream* st) {
|
|
77 |
st->print(type2name(basic_type()));
|
|
78 |
}
|
|
79 |
|
|
80 |
|
|
81 |
|
|
82 |
// ------------------------------------------------------------------
|
|
83 |
// ciType::java_mirror
|
|
84 |
//
|
|
85 |
ciInstance* ciType::java_mirror() {
|
|
86 |
VM_ENTRY_MARK;
|
|
87 |
return CURRENT_THREAD_ENV->get_object(Universe::java_mirror(basic_type()))->as_instance();
|
|
88 |
}
|
|
89 |
|
|
90 |
// ------------------------------------------------------------------
|
|
91 |
// ciType::box_klass
|
|
92 |
//
|
|
93 |
ciKlass* ciType::box_klass() {
|
|
94 |
if (!is_primitive_type()) return this->as_klass(); // reference types are "self boxing"
|
|
95 |
|
|
96 |
// Void is "boxed" with a null.
|
|
97 |
if (basic_type() == T_VOID) return NULL;
|
|
98 |
|
|
99 |
VM_ENTRY_MARK;
|
|
100 |
return CURRENT_THREAD_ENV->get_object(SystemDictionary::box_klass(basic_type()))->as_instance_klass();
|
|
101 |
}
|
|
102 |
|
|
103 |
|
|
104 |
// ------------------------------------------------------------------
|
|
105 |
// ciType::make
|
|
106 |
//
|
|
107 |
// Produce the ciType for a given primitive BasicType.
|
|
108 |
// As a bonus, produce the right reference type for T_OBJECT.
|
|
109 |
// Does not work on T_ARRAY.
|
|
110 |
ciType* ciType::make(BasicType t) {
|
|
111 |
// short, etc.
|
|
112 |
// Note: Bare T_ADDRESS means a raw pointer type, not a return_address.
|
|
113 |
assert((uint)t < T_CONFLICT+1, "range check");
|
4571
|
114 |
if (t == T_OBJECT) return ciEnv::_Object_klass; // java/lang/Object
|
1
|
115 |
assert(_basic_types[t] != NULL, "domain check");
|
|
116 |
return _basic_types[t];
|
|
117 |
}
|
|
118 |
|
|
119 |
// ciReturnAddress
|
|
120 |
//
|
|
121 |
// This class represents the type of a specific return address in the
|
|
122 |
// bytecodes.
|
|
123 |
|
|
124 |
// ------------------------------------------------------------------
|
|
125 |
// ciReturnAddress::ciReturnAddress
|
|
126 |
//
|
|
127 |
ciReturnAddress::ciReturnAddress(int bci) : ciType(T_ADDRESS) {
|
|
128 |
assert(0 <= bci, "bci cannot be negative");
|
|
129 |
_bci = bci;
|
|
130 |
}
|
|
131 |
|
|
132 |
// ------------------------------------------------------------------
|
|
133 |
// ciReturnAddress::print_impl
|
|
134 |
//
|
|
135 |
// Implementation of the print method.
|
|
136 |
void ciReturnAddress::print_impl(outputStream* st) {
|
|
137 |
st->print(" bci=%d", _bci);
|
|
138 |
}
|
|
139 |
|
|
140 |
// ------------------------------------------------------------------
|
|
141 |
// ciReturnAddress::make
|
|
142 |
ciReturnAddress* ciReturnAddress::make(int bci) {
|
|
143 |
GUARDED_VM_ENTRY(return CURRENT_ENV->get_return_address(bci);)
|
|
144 |
}
|