1 /*
2 * Copyright (c) 1997, 2020, 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.
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23 */
24
25 #ifndef SHARE_MEMORY_OOPFACTORY_HPP
26 #define SHARE_MEMORY_OOPFACTORY_HPP
27
28 #include "memory/referenceType.hpp"
29 #include "oops/oopsHierarchy.hpp"
30 #include "runtime/handles.hpp"
31 #include "utilities/exceptions.hpp"
32
33 // oopFactory is a class used for creating new objects.
34
35 class oopFactory: AllStatic {
36 public:
37 // Basic type leaf array allocation
38 static typeArrayOop new_boolArray (int length, TRAPS);
39 static typeArrayOop new_charArray (int length, TRAPS);
40 static typeArrayOop new_floatArray (int length, TRAPS);
41 static typeArrayOop new_doubleArray(int length, TRAPS);
42 static typeArrayOop new_byteArray (int length, TRAPS);
43 static typeArrayOop new_shortArray (int length, TRAPS);
44 static typeArrayOop new_intArray (int length, TRAPS);
45 static typeArrayOop new_longArray (int length, TRAPS);
46
47 // create java.lang.Object[]
48 static objArrayOop new_objectArray(int length, TRAPS);
49
50 static typeArrayOop new_charArray(const char* utf8_str, TRAPS);
51
52 static typeArrayOop new_typeArray(BasicType type, int length, TRAPS);
53 static typeArrayOop new_typeArray_nozero(BasicType type, int length, TRAPS);
54 static typeArrayOop new_symbolArray(int length, TRAPS);
55
56 // Regular object arrays
57 static objArrayOop new_objArray(Klass* klass, int length, TRAPS);
58
59 // Value arrays...
60 // LWorld:
61 // - Q-type signature allocation should use this path.
62 // - L-type signature allocation should use new_objArray
63 //
64 // Method specifically null free and possibly flat if possible
65 // i.e. flatArrayOop if flattening can be done, else "null free" objArrayOop
66 static arrayOop new_valueArray(Klass* klass, int length, TRAPS);
67
68 // Helper conversions from value to obj array...
69 static objArrayHandle copy_flatArray_to_objArray(flatArrayHandle array, TRAPS);
70 static objArrayHandle ensure_objArray(oop array, TRAPS); // copy into new objArray if not already an objArray
71
72 // Helper that returns a Handle
73 static objArrayHandle new_objArray_handle(Klass* klass, int length, TRAPS);
74 };
75
76 #endif // SHARE_MEMORY_OOPFACTORY_HPP