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
21 * questions.
22 *
23 */
24
25#ifndef SHARE_CI_CISIGNATURE_HPP
26#define SHARE_CI_CISIGNATURE_HPP
27
28#include "ci/ciClassList.hpp"
29#include "ci/ciSymbol.hpp"
30#include "interpreter/bytecodes.hpp"
31#include "utilities/globalDefinitions.hpp"
32#include "utilities/growableArray.hpp"
33
34// ciSignature
35//
36// This class represents the signature of a method.
37class ciSignature : public ResourceObj {
38private:
39 ciSymbol* _symbol;
40 ciKlass* _accessing_klass;
41
42 GrowableArray<ciType*>* _types;
43 int _size; // number of stack slots required for arguments
44 int _count; // number of parameter types in the signature
45
46 friend class ciMethod;
47 friend class ciBytecodeStream;
48 friend class ciObjectFactory;
49
50 ciSignature(ciKlass* accessing_klass, const constantPoolHandle& cpool, ciSymbol* signature);
51 ciSignature(ciKlass* accessing_klass, ciSymbol* signature, ciMethodType* method_type);
52
53 void get_all_klasses();
54
55 Symbol* get_symbol() const { return _symbol->get_symbol(); }
56
57public:
58 ciSymbol* as_symbol() const { return _symbol; }
59 ciKlass* accessing_klass() const { return _accessing_klass; }
60
61 ciType* return_type() const;
62 ciType* type_at(int index) const;
63
64 int size() const { return _size; }
65 int count() const { return _count; }
66
67 int arg_size_for_bc(Bytecodes::Code bc) { return size() + (Bytecodes::has_receiver(bc) ? 1 : 0); }
68
69 bool equals(ciSignature* that);
70
71 void print_signature();
72 void print();
73};
74
75#endif // SHARE_CI_CISIGNATURE_HPP
76