1 /* 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Martin Hentschel <info@cl-soft.de> 30 * 31 */ 32 33 using System; 34 using System.Collections.Generic; 35 36 namespace CCodeGeneration 37 { 38 public class SwitchCase : CodeContainerBase 39 { 40 public string Value { get; set; } 41 SwitchCase()42 public SwitchCase() 43 { 44 } 45 SwitchCase(string value)46 public SwitchCase(string value) 47 { 48 this.Value = value; 49 } 50 51 public bool IsDefault 52 { 53 get { return (this.Value.ToLowerInvariant() == "default"); } 54 } 55 GenerateDefault()56 public static SwitchCase GenerateDefault() 57 { 58 return new SwitchCase("default"); 59 } 60 GenerateCode(int level, CGenerator generator)61 public override void GenerateCode(int level, CGenerator generator) 62 { 63 if (!String.IsNullOrWhiteSpace(this.Value)) 64 { 65 generator.IndentLine(level); 66 if (this.IsDefault) 67 { 68 generator.OutputStream.Write("default:"); 69 } 70 else 71 { 72 generator.OutputStream.Write(String.Format("case {0}:", this.Value)); 73 } 74 generator.WriteNewLine(); 75 generator.IndentLine(level + 1); 76 generator.OutputStream.Write("{"); 77 generator.WriteNewLine(); 78 79 base.GenerateCode(level + 1, generator); 80 81 generator.IndentLine(level + 1); 82 generator.OutputStream.Write("}"); 83 generator.WriteNewLine(); 84 85 generator.IndentLine(level + 1); 86 generator.OutputStream.Write("break;"); 87 generator.WriteNewLine(); 88 } 89 } 90 } 91 92 public class Switch: CodeElement 93 { 94 public string SwitchVar { get; set; } 95 96 private List<SwitchCase> switches = new List<SwitchCase>(); 97 Switch()98 public Switch() 99 { 100 } 101 Switch(string switchVar)102 public Switch(string switchVar) 103 { 104 this.SwitchVar = switchVar; 105 } 106 107 public List<SwitchCase> Switches 108 { 109 get { return this.switches; } 110 } 111 GenerateCode(int level, CGenerator generator)112 public override void GenerateCode(int level, CGenerator generator) 113 { 114 if (!String.IsNullOrWhiteSpace(this.SwitchVar)) 115 { 116 generator.IndentLine(level); 117 generator.OutputStream.Write(String.Format("switch ({0})", this.SwitchVar)); 118 generator.WriteNewLine(); 119 generator.IndentLine(level); 120 generator.OutputStream.Write("{"); 121 generator.WriteNewLine(); 122 123 SwitchCase defaultCase = null; // generate 'default' always as last case 124 foreach (SwitchCase switchCase in this.switches) 125 { 126 if (switchCase.IsDefault) 127 { 128 defaultCase = switchCase; 129 } 130 else 131 { 132 switchCase.GenerateCode(level + 1, generator); 133 } 134 } 135 if (defaultCase != null) 136 { 137 defaultCase.GenerateCode(level + 1, generator); 138 } 139 140 generator.IndentLine(level); 141 generator.OutputStream.Write("}"); 142 generator.WriteNewLine(); 143 } 144 } 145 } 146 } 147