1/*
2 * Copyright (c) 1994, 2003, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.tools.java;
27
28/**
29 * This class represents an Java method type.
30 * It overrides the relevant methods in class Type.
31 *
32 * WARNING: The contents of this source file are not part of any
33 * supported API.  Code that depends on them does so at its own risk:
34 * they are subject to change or removal without notice.
35 *
36 * @author      Arthur van Hoff
37 */
38public final
39class MethodType extends Type {
40    /**
41     * The return type.
42     */
43    Type returnType;
44
45    /**
46     * The argument types.
47     */
48    Type argTypes[];
49
50    /**
51     * Construct a method type. Use Type.tMethod to create
52     * a new method type.
53     * @see Type.tMethod
54     */
55    MethodType(String typeSig, Type returnType, Type argTypes[]) {
56        super(TC_METHOD, typeSig);
57        this.returnType = returnType;
58        this.argTypes = argTypes;
59    }
60
61    public Type getReturnType() {
62        return returnType;
63    }
64
65    public Type getArgumentTypes()[] {
66        return argTypes;
67    }
68
69    public boolean equalArguments(Type t) {
70        if (t.typeCode != TC_METHOD) {
71            return false;
72        }
73        MethodType m = (MethodType)t;
74        if (argTypes.length != m.argTypes.length) {
75            return false;
76        }
77        for (int i = argTypes.length - 1 ; i >= 0 ; i--) {
78            if (argTypes[i] != m.argTypes[i]) {
79                return false;
80            }
81        }
82        return true;
83    }
84
85    public int stackSize() {
86        int n = 0;
87        for (int i = 0 ; i < argTypes.length ; i++) {
88            n += argTypes[i].stackSize();
89        }
90        return n;
91    }
92
93    public String typeString(String id, boolean abbrev, boolean ret) {
94        StringBuilder sb = new StringBuilder();
95        sb.append(id);
96        sb.append('(');
97        for (int i = 0 ; i < argTypes.length ; i++) {
98            if (i > 0) {
99                sb.append(", ");
100            }
101            sb.append(argTypes[i].typeString("", abbrev, ret));
102        }
103        sb.append(')');
104
105        return ret ? getReturnType().typeString(sb.toString(), abbrev, ret) : sb.toString();
106    }
107}
108