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.tree;
27
28import sun.tools.java.*;
29import java.io.PrintStream;
30
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 */
36public
37class NaryExpression extends UnaryExpression {
38    Expression args[];
39
40    /**
41     * Constructor
42     */
43    NaryExpression(int op, long where, Type type, Expression right, Expression args[]) {
44        super(op, where, type, right);
45        this.args = args;
46    }
47
48    /**
49     * Create a copy of the expression for method inlining
50     */
51    public Expression copyInline(Context ctx) {
52        NaryExpression e = (NaryExpression)clone();
53        if (right != null) {
54            e.right = right.copyInline(ctx);
55        }
56        e.args = new Expression[args.length];
57        for (int i = 0 ; i < args.length ; i++) {
58            if (args[i] != null) {
59                e.args[i] = args[i].copyInline(ctx);
60            }
61        }
62        return e;
63    }
64
65    /**
66     * The cost of inlining this expression
67     */
68    public int costInline(int thresh, Environment env, Context ctx) {
69        int cost = 3;
70        if (right != null)
71            cost += right.costInline(thresh, env, ctx);
72        for (int i = 0 ; (i < args.length) && (cost < thresh) ; i++) {
73            if (args[i] != null) {
74                cost += args[i].costInline(thresh, env, ctx);
75            }
76        }
77        return cost;
78    }
79
80    /**
81     * Print
82     */
83    public void print(PrintStream out) {
84        out.print("(" + opNames[op] + "#" + hashCode());
85        if (right != null) {
86            out.print(" ");
87            right.print(out);
88        }
89        for (int i = 0 ; i < args.length ; i++) {
90            out.print(" ");
91            if (args[i] != null) {
92                args[i].print(out);
93            } else {
94                out.print("<null>");
95            }
96        }
97        out.print(")");
98    }
99}
100