1 /*
   2  * Copyright (c) 1997, 2012, 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 com.sun.codemodel.internal;
  27 
  28 import java.util.ArrayList;
  29 import java.util.Iterator;
  30 import java.util.List;
  31 
  32 /**
  33  * Switch statement
  34  */
  35 public final class JSwitch implements JStatement {
  36 
  37     /**
  38      * Test part of switch statement.
  39      */
  40     private JExpression test;
  41 
  42     /**
  43      * vector of JCases.
  44      */
  45     private List<JCase> cases = new ArrayList<JCase>();
  46 
  47     /**
  48      * a single default case
  49      */
  50     private JCase defaultCase = null;
  51 
  52     /**
  53      * Construct a While statment
  54      */
  55     JSwitch(JExpression test) {
  56         this.test = test;
  57     }
  58 
  59     public JExpression test() { return test; }
  60 
  61     public Iterator<JCase> cases() { return cases.iterator(); }
  62 
  63     public JCase _case( JExpression label ) {
  64         JCase c = new JCase( label );
  65         cases.add(c);
  66         return c;
  67     }
  68 
  69     public JCase _default() {
  70         // what if (default != null) ???
  71 
  72         // default cases statements don't have a label
  73         defaultCase = new JCase(null, true);
  74         return defaultCase;
  75     }
  76 
  77     public void state(JFormatter f) {
  78         if (JOp.hasTopOp(test)) {
  79             f.p("switch ").g(test).p(" {").nl();
  80         } else {
  81             f.p("switch (").g(test).p(')').p(" {").nl();
  82         }
  83         for( JCase c : cases )
  84             f.s(c);
  85         if( defaultCase != null )
  86             f.s( defaultCase );
  87         f.p('}').nl();
  88     }
  89 
  90 }