Mercurial > hg > graal-compiler
comparison src/share/vm/oops/objArrayKlass.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | ba764ed4b6f2 |
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1 /* | |
2 * Copyright 1997-2007 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 // objArrayKlass is the klass for objArrays | |
26 | |
27 class objArrayKlass : public arrayKlass { | |
28 friend class VMStructs; | |
29 private: | |
30 klassOop _element_klass; // The klass of the elements of this array type | |
31 klassOop _bottom_klass; // The one-dimensional type (instanceKlass or typeArrayKlass) | |
32 public: | |
33 // Instance variables | |
34 klassOop element_klass() const { return _element_klass; } | |
35 void set_element_klass(klassOop k) { oop_store_without_check((oop*) &_element_klass, (oop) k); } | |
36 oop* element_klass_addr() { return (oop*)&_element_klass; } | |
37 | |
38 klassOop bottom_klass() const { return _bottom_klass; } | |
39 void set_bottom_klass(klassOop k) { oop_store_without_check((oop*) &_bottom_klass, (oop) k); } | |
40 oop* bottom_klass_addr() { return (oop*)&_bottom_klass; } | |
41 | |
42 // Compiler/Interpreter offset | |
43 static int element_klass_offset_in_bytes() { return offset_of(objArrayKlass, _element_klass); } | |
44 | |
45 // Dispatched operation | |
46 bool can_be_primary_super_slow() const; | |
47 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS); | |
48 bool compute_is_subtype_of(klassOop k); | |
49 bool oop_is_objArray_slow() const { return true; } | |
50 int oop_size(oop obj) const; | |
51 int klass_oop_size() const { return object_size(); } | |
52 | |
53 // Allocation | |
54 DEFINE_ALLOCATE_PERMANENT(objArrayKlass); | |
55 objArrayOop allocate(int length, TRAPS); | |
56 oop multi_allocate(int rank, jint* sizes, TRAPS); | |
57 | |
58 // Copying | |
59 void copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS); | |
60 | |
61 // Compute protection domain | |
62 oop protection_domain() { return Klass::cast(bottom_klass())->protection_domain(); } | |
63 // Compute class loader | |
64 oop class_loader() const { return Klass::cast(bottom_klass())->class_loader(); } | |
65 | |
66 protected: | |
67 // Returns the objArrayKlass for n'th dimension. | |
68 virtual klassOop array_klass_impl(bool or_null, int n, TRAPS); | |
69 | |
70 // Returns the array class with this class as element type. | |
71 virtual klassOop array_klass_impl(bool or_null, TRAPS); | |
72 | |
73 public: | |
74 // Casting from klassOop | |
75 static objArrayKlass* cast(klassOop k) { | |
76 assert(k->klass_part()->oop_is_objArray_slow(), "cast to objArrayKlass"); | |
77 return (objArrayKlass*) k->klass_part(); | |
78 } | |
79 | |
80 // Sizing | |
81 static int header_size() { return oopDesc::header_size() + sizeof(objArrayKlass)/HeapWordSize; } | |
82 int object_size() const { return arrayKlass::object_size(header_size()); } | |
83 | |
84 // Initialization (virtual from Klass) | |
85 void initialize(TRAPS); | |
86 | |
87 // Garbage collection | |
88 void oop_follow_contents(oop obj); | |
89 int oop_adjust_pointers(oop obj); | |
90 | |
91 // Parallel Scavenge and Parallel Old | |
92 PARALLEL_GC_DECLS | |
93 | |
94 // Iterators | |
95 int oop_oop_iterate(oop obj, OopClosure* blk) { | |
96 return oop_oop_iterate_v(obj, blk); | |
97 } | |
98 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
99 return oop_oop_iterate_v_m(obj, blk, mr); | |
100 } | |
101 #define ObjArrayKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ | |
102 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ | |
103 int oop_oop_iterate##nv_suffix##_m(oop obj, OopClosureType* blk, \ | |
104 MemRegion mr); | |
105 | |
106 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DECL) | |
107 ALL_OOP_OOP_ITERATE_CLOSURES_3(ObjArrayKlass_OOP_OOP_ITERATE_DECL) | |
108 | |
109 // JVM support | |
110 jint compute_modifier_flags(TRAPS) const; | |
111 | |
112 private: | |
113 static klassOop array_klass_impl (objArrayKlassHandle this_oop, bool or_null, int n, TRAPS); | |
114 | |
115 #ifndef PRODUCT | |
116 public: | |
117 // Printing | |
118 void oop_print_on (oop obj, outputStream* st); | |
119 void oop_print_value_on(oop obj, outputStream* st); | |
120 #endif | |
121 | |
122 public: | |
123 // Verification | |
124 const char* internal_name() const; | |
125 void oop_verify_on(oop obj, outputStream* st); | |
126 void oop_verify_old_oop(oop obj, oop* p, bool allow_dirty); | |
127 | |
128 }; |