1 /*
2 * Copyright (c) 1997, 2015, 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 *
68 Klass* ArrayKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
69 // There are no fields in an array klass but look to the super class (Object)
70 assert(super(), "super klass must be present");
71 return super()->find_field(name, sig, fd);
72 }
73
74 Method* ArrayKlass::uncached_lookup_method(const Symbol* name,
75 const Symbol* signature,
76 OverpassLookupMode overpass_mode) const {
77 // There are no methods in an array klass but the super class (Object) has some
78 assert(super(), "super klass must be present");
79 // Always ignore overpass methods in superclasses, although technically the
80 // super klass of an array, (j.l.Object) should not have
81 // any overpass methods present.
82 return super()->uncached_lookup_method(name, signature, Klass::skip_overpass);
83 }
84
85 ArrayKlass::ArrayKlass(Symbol* name) :
86 _dimension(1),
87 _higher_dimension(NULL),
88 _lower_dimension(NULL),
89 // Arrays don't add any new methods, so their vtable is the same size as
90 // the vtable of klass Object.
91 _vtable_len(Universe::base_vtable_size()) {
92 set_name(name);
93 set_super(Universe::is_bootstrapping() ? (Klass*)NULL : SystemDictionary::Object_klass());
94 set_layout_helper(Klass::_lh_neutral_value);
95 set_is_cloneable(); // All arrays are considered to be cloneable (See JLS 20.1.5)
96 TRACE_INIT_ID(this);
97 }
98
99
100 // Initialization of vtables and mirror object is done separatly from base_create_array_klass,
101 // since a GC can happen. At this point all instance variables of the ArrayKlass must be setup.
102 void ArrayKlass::complete_create_array_klass(ArrayKlass* k, KlassHandle super_klass, TRAPS) {
103 ResourceMark rm(THREAD);
104 k->initialize_supers(super_klass(), CHECK);
105 k->vtable()->initialize_vtable(false, CHECK);
106 java_lang_Class::create_mirror(k, Handle(THREAD, k->class_loader()), Handle(NULL), CHECK);
107 }
108
109 GrowableArray<Klass*>* ArrayKlass::compute_secondary_supers(int num_extra_slots) {
110 // interfaces = { cloneable_klass, serializable_klass };
111 assert(num_extra_slots == 0, "sanity of primitive array type");
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1 /*
2 * Copyright (c) 1997, 2016, 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 *
68 Klass* ArrayKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
69 // There are no fields in an array klass but look to the super class (Object)
70 assert(super(), "super klass must be present");
71 return super()->find_field(name, sig, fd);
72 }
73
74 Method* ArrayKlass::uncached_lookup_method(const Symbol* name,
75 const Symbol* signature,
76 OverpassLookupMode overpass_mode) const {
77 // There are no methods in an array klass but the super class (Object) has some
78 assert(super(), "super klass must be present");
79 // Always ignore overpass methods in superclasses, although technically the
80 // super klass of an array, (j.l.Object) should not have
81 // any overpass methods present.
82 return super()->uncached_lookup_method(name, signature, Klass::skip_overpass);
83 }
84
85 ArrayKlass::ArrayKlass(Symbol* name) :
86 _dimension(1),
87 _higher_dimension(NULL),
88 _lower_dimension(NULL) {
89 // Arrays don't add any new methods, so their vtable is the same size as
90 // the vtable of klass Object.
91 set_vtable_length(Universe::base_vtable_size());
92 set_name(name);
93 set_super(Universe::is_bootstrapping() ? (Klass*)NULL : SystemDictionary::Object_klass());
94 set_layout_helper(Klass::_lh_neutral_value);
95 set_is_cloneable(); // All arrays are considered to be cloneable (See JLS 20.1.5)
96 TRACE_INIT_ID(this);
97 }
98
99
100 // Initialization of vtables and mirror object is done separatly from base_create_array_klass,
101 // since a GC can happen. At this point all instance variables of the ArrayKlass must be setup.
102 void ArrayKlass::complete_create_array_klass(ArrayKlass* k, KlassHandle super_klass, TRAPS) {
103 ResourceMark rm(THREAD);
104 k->initialize_supers(super_klass(), CHECK);
105 k->vtable()->initialize_vtable(false, CHECK);
106 java_lang_Class::create_mirror(k, Handle(THREAD, k->class_loader()), Handle(NULL), CHECK);
107 }
108
109 GrowableArray<Klass*>* ArrayKlass::compute_secondary_supers(int num_extra_slots) {
110 // interfaces = { cloneable_klass, serializable_klass };
111 assert(num_extra_slots == 0, "sanity of primitive array type");
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