public Type[] CreateDuckTypes(Type interfaceType, Type[] duckedTypes)
{
const string TYPE_PREFIX = "Duck";
String namespaceName = this.GetType().Namespace + "." + interfaceType.Name;
CodeCompileUnit codeCU = new CodeCompileUnit();
CodeNamespace codeNsp = new CodeNamespace(namespaceName);
codeCU.Namespaces.Add(codeNsp);
//CodeTypeReference codeTRInterface = new CodeTypeReference(interfaceType);
CodeTypeReference codeTRInterface = new CodeTypeReference(TypeX.Create(interfaceType).FullName);
ReferenceList references = new ReferenceList();
// 遍历处理每一个需要代理的类
for (int i = 0; i < duckedTypes.Length; i++)
{
Type objectType = duckedTypes[i];
//CodeTypeReference codeTRObject = new CodeTypeReference(objectType);
CodeTypeReference codeTRObject = new CodeTypeReference(TypeX.Create(objectType).FullName);
references.AddReference(objectType);
CodeTypeDeclaration codeType = new CodeTypeDeclaration(TYPE_PREFIX + i);
codeNsp.Types.Add(codeType);
codeType.TypeAttributes = TypeAttributes.Public;
codeType.BaseTypes.Add(codeTRInterface);
// 声明一个字段
CodeMemberField codeFldObj = new CodeMemberField(codeTRObject, "_obj");
codeType.Members.Add(codeFldObj);
CodeFieldReferenceExpression codeFldRef = new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), codeFldObj.Name);
// 创建一个构造函数
CodeConstructor codeCtor = new CodeConstructor();
codeType.Members.Add(codeCtor);
codeCtor.Attributes = MemberAttributes.Public;
codeCtor.Parameters.Add(new CodeParameterDeclarationExpression(codeTRObject, "obj"));
codeCtor.Statements.Add(
new CodeAssignStatement(
codeFldRef,
new CodeArgumentReferenceExpression("obj")
)
);
// 创建成员
CreateMember(interfaceType, objectType, codeType, references, codeFldRef);
}
#region 编译
CSharpCodeProvider codeprov = new CSharpCodeProvider();
#if DEBUG
{
StringWriter sw = new StringWriter();
codeprov.GenerateCodeFromCompileUnit(codeCU, sw, new CodeGeneratorOptions());
string code = sw.ToString();
Console.WriteLine(code);
}
#endif
CompilerParameters compilerParams = new CompilerParameters();
compilerParams.GenerateInMemory = true;
compilerParams.ReferencedAssemblies.Add(interfaceType.Assembly.Location);
references.SetToCompilerParameters(compilerParams);
CompilerResults cres = codeprov.CompileAssemblyFromDom(compilerParams, codeCU);
if (cres.Errors.Count > 0)
{
StringWriter sw = new StringWriter();
foreach (CompilerError err in cres.Errors)
{
sw.WriteLine(err.ErrorText);
}
throw new InvalidOperationException("编译错误: \n\n" + sw.ToString());
}
Assembly assembly = cres.CompiledAssembly;
Type[] res = new Type[duckedTypes.Length];
for (int i = 0; i < duckedTypes.Length; i++)
{
res[i] = assembly.GetType(namespaceName + "." + TYPE_PREFIX + i);
}
return(res);
#endregion
}
public Type[] CreateDuckTypes(Type interfaceType, Type[] duckedTypes)
{
const string TYPE_PREFIX = "Duck";
String namespaceName = this.GetType().Namespace + "." + interfaceType.Name;
CodeCompileUnit codeCU = new CodeCompileUnit();
CodeNamespace codeNsp = new CodeNamespace(namespaceName);
codeCU.Namespaces.Add(codeNsp);
//CodeTypeReference codeTRInterface = new CodeTypeReference(interfaceType);
CodeTypeReference codeTRInterface = new CodeTypeReference(TypeX.Create(interfaceType).FullName);
ReferenceList references = new ReferenceList();
// 遍历处理每一个需要代理的类
for (int i = 0; i < duckedTypes.Length; i++)
{
Type objectType = duckedTypes[i];
//CodeTypeReference codeTRObject = new CodeTypeReference(objectType);
CodeTypeReference codeTRObject = new CodeTypeReference(TypeX.Create(objectType).FullName);
references.AddReference(objectType);
CodeTypeDeclaration codeType = new CodeTypeDeclaration(TYPE_PREFIX + i);
codeNsp.Types.Add(codeType);
codeType.TypeAttributes = TypeAttributes.Public;
codeType.BaseTypes.Add(codeTRInterface);
// 声明一个字段
CodeMemberField codeFldObj = new CodeMemberField(codeTRObject, "_obj");
codeType.Members.Add(codeFldObj);
CodeFieldReferenceExpression codeFldRef = new CodeFieldReferenceExpression(new CodeThisReferenceExpression(), codeFldObj.Name);
// 创建一个构造函数
CodeConstructor codeCtor = new CodeConstructor();
codeType.Members.Add(codeCtor);
codeCtor.Attributes = MemberAttributes.Public;
codeCtor.Parameters.Add(new CodeParameterDeclarationExpression(codeTRObject, "obj"));
codeCtor.Statements.Add(
new CodeAssignStatement(
codeFldRef,
new CodeArgumentReferenceExpression("obj")
)
);
// 创建成员
CreateMember(interfaceType, objectType, codeType, references, codeFldRef);
}
#region 编译
CSharpCodeProvider codeprov = new CSharpCodeProvider();
#if DEBUG
{
StringWriter sw = new StringWriter();
codeprov.GenerateCodeFromCompileUnit(codeCU, sw, new CodeGeneratorOptions());
string code = sw.ToString();
Console.WriteLine(code);
}
#endif
CompilerParameters compilerParams = new CompilerParameters();
compilerParams.GenerateInMemory = true;
compilerParams.ReferencedAssemblies.Add(interfaceType.Assembly.Location);
references.SetToCompilerParameters(compilerParams);
CompilerResults cres = codeprov.CompileAssemblyFromDom(compilerParams, codeCU);
if (cres.Errors.Count > 0)
{
StringWriter sw = new StringWriter();
foreach (CompilerError err in cres.Errors)
sw.WriteLine(err.ErrorText);
throw new InvalidOperationException("编译错误: \n\n" + sw.ToString());
}
Assembly assembly = cres.CompiledAssembly;
Type[] res = new Type[duckedTypes.Length];
for (int i = 0; i < duckedTypes.Length; i++)
{
res[i] = assembly.GetType(namespaceName + "." + TYPE_PREFIX + i);
}
return res;
#endregion
}
