我有自己的.NET应用调试器,使用IMetaDataImport
interface
当我调用ResolveTypeRef
方法时,我总是得到NotImplementedException
。
ResolveTypeRef
的定义是这样的:
[ComImport]
[Guid("....")] //a valid GUID
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[CLSCompliant(false)]
public interface IMetaDataImport {
void ResolveTypeRef(
[ComAliasName("mdTypeRef")] mdToken tr,
[ComAliasName("REFIID")] ref Guid riid,
[ComAliasName("IUnknown**"), Out, MarshalAs(UnmanagedType.IUnknown)] out object ppIScope,
[ComAliasName("mdTypeDef*"), Out] out mdToken ptd
);
// ... other methods from IMetaDataImport
}
调用方法:
metadataImport.ResolveTypeRef(typeRefToken, ref metadataImportGuid, out metadataObject, out typeDefToken)
通常,该方法应解析System.Exception或System.SystemException类型。
当我将应用程序从.NET 3.5移动到.NET 4时出现问题。
感谢您的回答!
答案 0 :(得分:2)
Uff,我终于摆脱了这个......解决方案不是调用ResolveTypeRef,而是创建自己的方法来解析类型:
mdToken ptkResScope;
uint len;
metadataImport.GetTypeRefProps(typeRef, out ptkResScope, null, 0, out len);
StringBuilder sb = new StringBuilder((int)len);
metadataImport.GetTypeRefProps(typeRef, out ptkResScope, sb, len, out len);
string className = sb.ToString();
foreach (loadedModule ) { // this is quite tricky part ...
metadataImportForLoadedModule = GetMetaDataImportForModule(loadedModule);
metadataImportForLoadedModule.FindTypeDefByName(className, mdToken.Nil, out typeDef);
if ( typeDef.IsNonNil(CorTokenType.mdtTypeDef) ) {
return typeDef;
}
}
这个想法来自David Broman's CLR Profiling API Blog: Metadata Tokens, Run-Time IDs, and Type Loading(如果你对MetaDataImport感兴趣,那就非常好读。)