01: /*
02: * Copyright 1994-2003 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any 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 class CaseStatement extends Statement {
38: Expression expr;
39:
40: /**
41: * Constructor
42: */
43: public CaseStatement(long where, Expression expr) {
44: super (CASE, where);
45: this .expr = expr;
46: }
47:
48: /**
49: * Check statement
50: */
51: Vset check(Environment env, Context ctx, Vset vset, Hashtable exp) {
52: if (expr != null) {
53: expr.checkValue(env, ctx, vset, exp);
54: expr = convert(env, ctx, Type.tInt, expr);
55: expr = expr.inlineValue(env, ctx);
56: }
57: return vset.clearDeadEnd();
58: }
59:
60: /**
61: * The cost of inlining this statement
62: */
63: public int costInline(int thresh, Environment env, Context ctx) {
64: return 6;
65: }
66:
67: /**
68: * Print
69: */
70: public void print(PrintStream out, int indent) {
71: super .print(out, indent);
72: if (expr == null) {
73: out.print("default");
74: } else {
75: out.print("case ");
76: expr.print(out);
77: }
78: out.print(":");
79: }
80: }
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