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 
26 package sun.tools.tree;
27 
28 import sun.tools.java.*;
29 import java.io.PrintStream;
30 import java.util.Hashtable;
31 
32 /**
33  * WARNING: The contents of this source file are not part of any
34  * supported API.  Code that depends on them does so at its own risk:
35  * they are subject to change or removal without notice.
36  */
37 public
38 class CaseStatement extends Statement {
39     Expression expr;
40 
41     /**
42      * Constructor
43      */
CaseStatement(long where, Expression expr)44     public CaseStatement(long where, Expression expr) {
45         super(CASE, where);
46         this.expr = expr;
47     }
48 
49     /**
50      * Check statement
51      */
check(Environment env, Context ctx, Vset vset, Hashtable<Object, Object> exp)52     Vset check(Environment env, Context ctx, Vset vset, Hashtable<Object, Object> exp) {
53         if (expr != null) {
54             expr.checkValue(env, ctx, vset, exp);
55             expr = convert(env, ctx, Type.tInt, expr);
56             expr = expr.inlineValue(env, ctx);
57         }
58         return vset.clearDeadEnd();
59     }
60 
61     /**
62      * The cost of inlining this statement
63      */
costInline(int thresh, Environment env, Context ctx)64     public int costInline(int thresh, Environment env, Context ctx) {
65         return 6;
66     }
67 
68     /**
69      * Print
70      */
print(PrintStream out, int indent)71     public void print(PrintStream out, int indent) {
72         super.print(out, indent);
73         if (expr == null) {
74             out.print("default");
75         } else {
76             out.print("case ");
77             expr.print(out);
78         }
79         out.print(":");
80     }
81 }
82