CodeDomHelper类初稿

mac2022-06-30 82

1 using System; 2 using System.CodeDom; 3 using System.CodeDom.Compiler; 4 using Microsoft.CSharp; 5 using System.IO; 6 7 namespace CodeDomFacade 8 { 9 /**//// <summary> 10 /// 该类封装了CodeCom相关操作，方便外部使用 11 /// </summary> 12 public class CodeDomHelper 13 { 14 15 protected CodeCompileUnit _CodeRoot; 16 protected CodeNamespace _cn; 17 protected CodeDomProvider _provider; 18 protected string _strFileName; 19 protected CodeTypeDeclaration _ctdClass; 20 21 public CodeDomHelper() 22 { 23 _CodeRoot=new CodeCompileUnit(); 24 _ctdClass=new CodeTypeDeclaration(); 25 } 26 27 /**//// <summary> 28 /// 生成代码输出到文件 29 /// </summary> 30 public void GenerateCode() 31 { 32 try 33 { 34 // Obtain an ICodeGenerator from a CodeDomProvider class. 35 ICodeGenerator gen = _provider.CreateGenerator(); 36 // Create a TextWriter to a StreamWriter to an output file. 37 IndentedTextWriter tw = new IndentedTextWriter(new StreamWriter(_strFileName, false), " "); 38 // Generate source code using the code generator. 39 gen.GenerateCodeFromCompileUnit(_CodeRoot, tw, new CodeGeneratorOptions()); 40 // Close the output file. 41 tw.Close(); 42 } 43 catch(System.Exception e) 44 { 45 throw e; 46 } 47 } 48 49 /**//// <summary> 50 /// 生成C#代码 51 /// </summary> 52 public void GenerateCSharpCode() 53 { 54 _provider=new CSharpCodeProvider();//设定生成代码为C#代码 55 GenerateCode();//生成代码，写入指定文件 56 } 57 /**//// <summary> 58 /// 设置代码命名空间 59 /// </summary> 60 /// <param name="name">命名空间名字</param> 61 public void DefineNameSpace(string name) 62 { 63 try 64 { 65 _cn=new CodeNamespace(name); 66 _CodeRoot.Namespaces.Add(_cn); 67 } 68 catch(System.Exception e) 69 { 70 throw e; 71 } 72 } 73 74 /**//// <summary> 75 /// 添加引用命名空间 76 /// </summary> 77 /// <param name="name">被引用命名空间名字</param> 78 public void AddImportNameSpace(string name) 79 { 80 try 81 { 82 _cn.Imports.Add(new CodeNamespaceImport(name)); 83 } 84 catch(System.Exception e) 85 { 86 throw e; 87 } 88 } 89 90 /**//// <summary> 91 /// 添加一个类 92 /// </summary> 93 /// <param name="classname">类名</param> 94 public void AddClass(string classname) 95 { 96 try 97 { 98 _ctdClass.Name=classname; 99 _cn.Types.Add(_ctdClass);100 }101 catch(System.Exception e)102 {103 throw e;104 }105 }106107 /**//// <summary>108 /// 添加一个方法到类109 /// </summary>110 /// <param name="methodname">方法名</param>111 /// <param name="returntype">返回值类型，如"System.Int32"</param>112 /// <param name="visit">访问控制类型"public" or "private"</param>113 public CodeMemberMethod AddMethod(string methodname,string returntype,string visit)114 {115 CodeMemberMethod cmm=new CodeMemberMethod();116 try117 {118 cmm.Name=methodname;119 cmm.ReturnType =new CodeTypeReference(returntype);120 switch(visit)121 {122 case "public":123 cmm.Attributes=MemberAttributes.Public|MemberAttributes.Final; 124 break;125 case "private":126 cmm.Attributes=MemberAttributes.Private|MemberAttributes.Final; 127 break;128 default:129 cmm.Attributes=MemberAttributes.Private|MemberAttributes.Final; 130 break;131 }132 133 _ctdClass.Members.Add(cmm);134 }135 catch(System.Exception e)136 {137 throw e;138 }139 return cmm;140 }141142 /**//// <summary>143 /// 添加带有普通的get/set操作属性144 /// </summary>145 /// <param name="pname">属性名</param>146 /// <param name="returntype">返回值类型</param>147 /// <param name="visit">访问控制类型</param>148 /// <param name="fieldname">访问字段名</param>149 /// <returns>返回添加的属性，待以后操作，如添加原代码段</returns>150 public CodeMemberProperty AddProperty(string pname,string returntype,string visit,string fieldname)151 { 152 CodeMemberProperty cmp=new CodeMemberProperty();153 try154 {155 cmp.Name=pname;156 cmp.Type=new CodeTypeReference(returntype);157 switch(visit)158 {159 case "public":160 cmp.Attributes=MemberAttributes.Public|MemberAttributes.Final; 161 break;162 case "private":163 cmp.Attributes=MemberAttributes.Private|MemberAttributes.Final; 164 break;165 default:166 cmp.Attributes=MemberAttributes.Private|MemberAttributes.Final; 167 break;168 }169 //添加get操作代码170 cmp.GetStatements.Add(new CodeMethodReturnStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(),fieldname)));171 //添加set操作代码172 cmp.SetStatements.Add(new CodeAssignStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(),fieldname),new CodePropertySetValueReferenceExpression()));173 _ctdClass.Members.Add(cmp);174 }175 catch(System.Exception e)176 {177 throw e;178 }179 return cmp;180 }181182 /**//// <summary>183 /// 添加字段184 /// </summary>185 /// <param name="name">字段名</param>186 /// <param name="type">字段类型</param>187 /// <param name="visit">访问控制类型</param>188 /// <param name="IsCreateProperty">是否生成对应属性</param>189 public void AddField(string name,string type,string visit,bool IsCreateProperty)190 {191 CodeMemberField cmf=new CodeMemberField(type,name);192 try193 {194 switch(visit)195 {196 case "public":197 cmf.Attributes=MemberAttributes.Public|MemberAttributes.Final; 198 break;199 case "private":200 cmf.Attributes=MemberAttributes.Private|MemberAttributes.Final; 201 break;202 default:203 cmf.Attributes=MemberAttributes.Private|MemberAttributes.Final; 204 break;205 }206 _ctdClass.Members.Add(cmf);207 if(IsCreateProperty)208 {209 if(name.IndexOf("_")>0)210 AddProperty(name.Replace("_",""),type,"public",name);211 else212 AddProperty("p" + name,type,"public",name);213 }214 }215 catch(System.Exception e)216 {217 throw e;218 }219 }220221 /**//// <summary>222 /// 从指定文件获取代码223 /// </summary>224 /// <param name="filename">文件路径（包含名称）</param>225 /// <returns></returns>226 public string GetCodeFormFile(string filename)227 {228 try229 {230 StreamReader sr = new StreamReader(filename);231 string result = sr.ReadToEnd();//读取文件内容到文本框232 sr.Close();233 return result;234 }235 catch(System.Exception e)236 {237 throw e;238 return "读取文件出错";239 }240 }241242 /**//// <summary>243 /// 添加原代码片断244 /// </summary>245 /// <param name="cmm">要添加的地方，如方法，入口点，结构等</param>246 /// <param name="strCode">具体代码</param>247 public void AddCodeSnippet(CodeMemberMethod cmm,string strCode)248 {249 try250 {251 CodeSnippetStatement codebody = null;252 codebody = new CodeSnippetStatement(strCode);253 cmm.Statements.Add(codebody);254 }255 catch(System.Exception e)256 {257 throw e;258 }259 }260 相关属性#region 相关属性261 /**//// <summary>262 /// 代码提供容器263 /// </summary>264 public CodeCompileUnit CodeRoot265 {266 get267 {268 return _CodeRoot;269 }270 set271 {272 _CodeRoot=value;273 }274 }275276 /**//// <summary>277 /// 代码名字空间278 /// </summary>279 public CodeNamespace cn280 {281 get282 {283 return _cn;284 }285 set286 {287 _cn=value;288 }289 }290291 /**//// <summary>292 /// 代码类型提供者293 /// </summary>294 public CodeDomProvider provider295 {296 get297 {298 return _provider;299 }300 set301 {302 _provider=value;303 }304 }305306 /**//// <summary>307 /// 生成代码文件名308 /// </summary>309 public string strFileName310 {311 get312 {313 return _strFileName;314 }315 set316 {317 _strFileName=value;318 }319 }320 #endregion 321 }322} 323 最近在看CodeDom，发现其类层次很多，而且很复杂，所以写了一个Farade模式的类，希望在以后的开发中简化使用CodeDom，但由于时间有限，所以功能不够完善，也许要在以后使用中不断完善。

转载于:https://www.cnblogs.com/spgoal/archive/2005/10/31/265845.html