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CodeDom生成类文件

仅供个人学习

需要先引入System.CodeDom nuget包

  1 using CodeGenerate.Entities;
  2 using System;
  3 using System.CodeDom;
  4 using System.CodeDom.Compiler;
  5 using System.Collections.Generic;
  6 using System.Reflection;
  7 using System.Text;
  8 
  9 namespace CodeGenerate
 10 {
 11     public class GenerateCS
 12     {
 13         /// <summary>
 14         /// 生成的类里面只有字段
 15         /// </summary>
 16         /// <param name="namespaceName"></param>
 17         /// <param name="className"></param>
 18         /// <param name="classType"></param>
 19         /// <param name=""></param>
 20         public static void FieldGenerate(string namespaceName, string className, TypeAttributes classType, string FileName, List<ClassFieldInfo> classInfos)
 21         {
 22             CodeCompileUnit unit = new CodeCompileUnit();
 23 
 24             //准备必要的命名空间（这个是指要生成的类的空间）
 25             CodeNamespace sampleNamespace = new CodeNamespace();
 26 
 27             //导入必要的命名空间
 28             //sampleNamespace.Imports.Add(new CodeNamespaceImport("System"));
 29 
 30             //设置命名空间的名称
 31             sampleNamespace.Name = namespaceName;
 32 
 33             //准备要生成的类的定义
 34             CodeTypeDeclaration Customerclass = new CodeTypeDeclaration(className);
 35 
 36             //指定这是一个Class
 37             Customerclass.IsClass = true;
 38             Customerclass.TypeAttributes = classType;
 39             //Customerclass.Attributes = MemberAttributes.Public | MemberAttributes.Const;
 40 
 41             //把这个类放在这个命名空间下
 42             sampleNamespace.Types.Add(Customerclass);
 43 
 44             //把该命名空间加入到编译器单元的命名空间集合中
 45             unit.Namespaces.Add(sampleNamespace);
 46 
 47             //这是输出文件名称
 48             string outputFile = FileName;
 49 
 50             //添加字段
 51             foreach (ClassFieldInfo item in classInfos)
 52             {
 53                 CodeMemberField field = new CodeMemberField(item.FieldType, item.FiledName);
 54                 field.Attributes = item.FiledMemberAttributes;
 55                 field.Comments.Add(new CodeCommentStatement(item.FieldComments));
 56                 //field.InitExpression = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression("System.Int64"), "12 * 1024 * 1024");
 57                 field.InitExpression = new CodeFieldReferenceExpression(null, item.FileValue);
 58                 Customerclass.Members.Add(field);
 59             }
 60 
 61             //生成代码
 62             CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");
 63             CodeGeneratorOptions options = new CodeGeneratorOptions();
 64             options.BracingStyle = "C";
 65             options.BlankLinesBetweenMembers = true;
 66             using (System.IO.StreamWriter sw = new System.IO.StreamWriter(outputFile))
 67             {
 68                 provider.GenerateCodeFromCompileUnit(unit, sw, options);
 69             }
 70         }
 71 
 72         public static void PropertiesGenerate(string namespaceName, string className, TypeAttributes classType, string FileName, List<ClassPropertyInfo> classInfos)
 73         {
 74             CodeCompileUnit unit = new CodeCompileUnit();
 75 
 76             //准备必要的命名空间（这个是指要生成的类的空间）
 77             CodeNamespace sampleNamespace = new CodeNamespace();
 78 
 79             //导入必要的命名空间
 80             //sampleNamespace.Imports.Add(new CodeNamespaceImport("System"));
 81 
 82             //设置命名空间的名称
 83             sampleNamespace.Name = namespaceName;
 84 
 85             //准备要生成的类的定义
 86             CodeTypeDeclaration Customerclass = new CodeTypeDeclaration(className);
 87 
 88             //指定这是一个Class
 89             Customerclass.IsClass = true;
 90             Customerclass.TypeAttributes = classType;
 91             //Customerclass.Attributes = MemberAttributes.Public | MemberAttributes.Const;
 92 
 93             //把这个类放在这个命名空间下
 94             sampleNamespace.Types.Add(Customerclass);
 95 
 96             //把该命名空间加入到编译器单元的命名空间集合中
 97             unit.Namespaces.Add(sampleNamespace);
 98 
 99             //这是输出文件名称
100             string outputFile = FileName;
101 
102             foreach(ClassPropertyInfo item in classInfos)
103             {
104                 CodeMemberProperty property = new CodeMemberProperty();
105                 property.Attributes = item.PropertyMemberAttributes;
106                 property.Name = item.PropertyName;
107                 property.HasGet = item.IsHaveGet;
108                 property.HasSet = item.IsHaveSet;
109                 property.Type = new CodeTypeReference(item.PropertyType);
110                 property.Comments.Add(new CodeCommentStatement(item.PropertyComments));
111                 //property.GetStatements.Add(new CodeMethodReturnStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), "_Id")));
112                 //property.SetStatements.Add(new CodeAssignStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), "_Id"), new CodePropertySetValueReferenceExpression()));
113                 Customerclass.Members.Add(property);
114             }
115 
116             //生成代码
117             CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");
118             CodeGeneratorOptions options = new CodeGeneratorOptions();
119             options.BracingStyle = "C";
120             options.BlankLinesBetweenMembers = true;
121             using (System.IO.StreamWriter sw = new System.IO.StreamWriter(outputFile))
122             {
123                 provider.GenerateCodeFromCompileUnit(unit, sw, options);
124             }
125         }
126     }
127 }

static void Generate(Dictionary<string, string> dic)
        {
            CodeCompileUnit unit = new CodeCompileUnit();

            //准备必要的命名空间（这个是指要生成的类的空间）
            CodeNamespace sampleNamespace = new CodeNamespace();

            //导入必要的命名空间
            //sampleNamespace.Imports.Add(new CodeNamespaceImport("System"));

            //设置命名空间的名称
            sampleNamespace.Name = "FiiiChain.Consensus";

            //准备要生成的类的定义
            CodeTypeDeclaration Customerclass = new CodeTypeDeclaration("BlockSetting");
            
            //指定这是一个Class
            Customerclass.IsClass = true;
            Customerclass.TypeAttributes = TypeAttributes.Public;
            //Customerclass.Attributes = MemberAttributes.Public | MemberAttributes.Const;

            //把这个类放在这个命名空间下
            sampleNamespace.Types.Add(Customerclass);

            //把该命名空间加入到编译器单元的命名空间集合中
            unit.Namespaces.Add(sampleNamespace);

            //这是输出文件
            string outputFile = "BlockSetting.cs";

            //添加字段
            foreach (KeyValuePair<string, string> item in dic)
            {
                CodeMemberField field = new CodeMemberField(typeof(long), item.Key);
                field.Attributes = MemberAttributes.Public | MemberAttributes.Const;
                //field.Comments.Add(new CodeCommentStatement("Max block size is 12 MB"));
                //field.InitExpression = new CodeFieldReferenceExpression(new CodeTypeReferenceExpression("System.Int64"), "12 * 1024 * 1024");
                field.InitExpression = new CodeFieldReferenceExpression(null, item.Value);
                Customerclass.Members.Add(field);
            }
            //添加属性
            
            CodeMemberProperty property = new CodeMemberProperty();
            property.Attributes = MemberAttributes.Public | MemberAttributes.Final;
            property.Name = "Id";
            property.HasGet = true;
            property.HasSet = true;
            property.Type = new CodeTypeReference(typeof(System.String));
            property.Comments.Add(new CodeCommentStatement("这是Id属性"));
            //property.GetStatements.Add(new CodeMethodReturnStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), "_Id1")));
            //property.SetStatements.Add(new CodeAssignStatement(new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), "_Id2"), new CodePropertySetValueReferenceExpression()));
            Customerclass.Members.Add(property);
            
            //添加方法（使用CodeMemberMethod)--此处略

            //添加构造器(使用CodeConstructor) --此处略

            //添加程序入口点（使用CodeEntryPointMethod） --此处略

            //添加事件（使用CodeMemberEvent) --此处略

            //添加特征(使用 CodeAttributeDeclaration)
            Customerclass.CustomAttributes.Add(new CodeAttributeDeclaration(new CodeTypeReference(typeof(SerializableAttribute))));

            //生成代码
            CodeDomProvider provider = CodeDomProvider.CreateProvider("CSharp");
            CodeGeneratorOptions options = new CodeGeneratorOptions();
            options.BracingStyle = "C";
            options.BlankLinesBetweenMembers = true;
            using (System.IO.StreamWriter sw = new System.IO.StreamWriter(outputFile))
            {
                provider.GenerateCodeFromCompileUnit(unit, sw, options);
            }
        }

参考文章：http://www.cnblogs.com/xszjk/articles/6414099.html

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原文地址：https://www.cnblogs.com/wangyulong/p/10762397.html