1 /*
 2  * Copyright (c) 1999, 2019, 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
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24 
25 #ifndef SHARE_CI_CIOBJARRAYKLASS_HPP
26 #define SHARE_CI_CIOBJARRAYKLASS_HPP
27 
28 #include "ci/ciArrayKlass.hpp"
29 
30 // ciObjArrayKlass
31 //
32 // This class represents a Klass* in the HotSpot virtual machine
33 // whose Klass part is an ObjArrayKlass.
34 class ciObjArrayKlass : public ciArrayKlass {
35   CI_PACKAGE_ACCESS
36   friend class ciEnv;
37 
38 private:
39   ciKlass* _element_klass;
40   ciKlass* _base_element_klass;
41   bool     _null_free;
42 
43 protected:
44   ciObjArrayKlass(Klass* k);
45   ciObjArrayKlass(ciSymbol* array_name,
46                   ciKlass* base_element_klass,
47                   int dimension);
48 
49   ObjArrayKlass* get_ObjArrayKlass() {
50     return (ObjArrayKlass*)get_Klass();
51   }
52 
53   static ciObjArrayKlass* make_impl(ciKlass* element_klass);
54   static ciSymbol* construct_array_name(ciSymbol* element_name,
55                                         int       dimension);
56 
57   const char* type_string() { return "ciObjArrayKlass"; }
58 
59   oop     loader()        { return _base_element_klass->loader(); }
60   jobject loader_handle() { return _base_element_klass->loader_handle(); }
61 
62   oop     protection_domain()        { return _base_element_klass->protection_domain(); }
63   jobject protection_domain_handle() { return _base_element_klass->protection_domain_handle(); }
64 
65 
66 public:
67   // The one-level type of the array elements.
68   ciKlass* element_klass();
69 
70   // The innermost type of the array elements.
71   ciKlass* base_element_klass() { return _base_element_klass; }
72 
73   // What kind of ciObject is this?
74   bool is_obj_array_klass() const { return true; }
75 
76   static ciObjArrayKlass* make(ciKlass* element_klass);
77 
78   virtual ciKlass* exact_klass();
79 
80   virtual bool can_be_inline_array_klass() {
81     return element_klass()->can_be_inline_klass();
82   }
83 
84   virtual bool is_elem_null_free() const { return _null_free; }
85 };
86 
87 #endif // SHARE_CI_CIOBJARRAYKLASS_HPP