source: azure_iot_hub_f767zi/trunk/asp_baseplatform/lwip/contrib-2.1.0/apps/LwipMibCompiler/CCodeGeneration/Switch.cs@ 457

/*
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 * Author: Martin Hentschel <info@cl-soft.de>
 *
 */

using System;
using System.Collections.Generic;

namespace CCodeGeneration
{
        public class SwitchCase : CodeContainerBase
        {
                public string Value { get; set; }

                public SwitchCase()
                {
                }

                public SwitchCase(string value)
                {
                        this.Value = value;
                }

                public bool IsDefault
                {
                        get { return (this.Value.ToLowerInvariant() == "default"); }
                }

                public static SwitchCase GenerateDefault()
                {
                        return new SwitchCase("default");
                }

                public override void GenerateCode(int level, CGenerator generator)
                {
                        if (!String.IsNullOrWhiteSpace(this.Value))
                        {
                                generator.IndentLine(level);
                                if (this.IsDefault)
                                {
                                        generator.OutputStream.Write("default:");
                                }
                                else
                                {
                                        generator.OutputStream.Write(String.Format("case {0}:", this.Value));
                                }
                                generator.WriteNewLine();
                                generator.IndentLine(level + 1);
                                generator.OutputStream.Write("{");
                                generator.WriteNewLine();

                                base.GenerateCode(level + 1, generator);

                                generator.IndentLine(level + 1);
                                generator.OutputStream.Write("}");
                                generator.WriteNewLine();

                                generator.IndentLine(level + 1);
                                generator.OutputStream.Write("break;");
                                generator.WriteNewLine();
                        }
                }
        }

        public class Switch: CodeElement
        {
                public string SwitchVar { get; set; }

                private List<SwitchCase> switches = new List<SwitchCase>();

                public Switch()
                {
                }

                public Switch(string switchVar)
                {
                        this.SwitchVar = switchVar;
                }

                public List<SwitchCase> Switches
                {
                        get { return this.switches; }
                }

                public override void GenerateCode(int level, CGenerator generator)
                {
                        if (!String.IsNullOrWhiteSpace(this.SwitchVar))
                        {
                                generator.IndentLine(level);
                                generator.OutputStream.Write(String.Format("switch ({0})", this.SwitchVar));
                                generator.WriteNewLine();
                                generator.IndentLine(level);
                                generator.OutputStream.Write("{");
                                generator.WriteNewLine();

                                SwitchCase defaultCase = null; // generate 'default' always as last case
                                foreach (SwitchCase switchCase in this.switches)
                                {
                                        if (switchCase.IsDefault)
                                        {
                                                defaultCase = switchCase;
                                        }
                                        else
                                        {
                                                switchCase.GenerateCode(level + 1, generator);
                                        }
                                }
                                if (defaultCase != null)
                                {
                                        defaultCase.GenerateCode(level + 1, generator);
                                }

                                generator.IndentLine(level);
                                generator.OutputStream.Write("}");
                                generator.WriteNewLine();
                        }
                }
        }
}