public unsafe bool Patch(ModuleDef module, out RawModuleBytes newModuleData)
{
var moduleData = this.moduleData;
// NOTE: We can't remove the type from the corlib (eg. mscorlib) because the compiler
// (Roslyn) won't recognize it as the corlib if it has any AssemblyRefs.
// A possible fix is to add a new netmodule to the corlib assembly.
bool fixTypeDefRefs = !(nonNestedEditedType is null) &&
MDPatcherUtils.ExistsInMetadata(nonNestedEditedType) &&
MDPatcherUtils.ReferencesModule(module, nonNestedEditedType?.Module) &&
!module.Assembly.IsCorLib();
bool addIVT = module == editedModule || MDPatcherUtils.HasModuleInternalAccess(module, editedModule);
if (fixTypeDefRefs || addIVT)
{
DnSpyEventSource.Log.EditCodePatchModuleStart(module.Location);
using (var md = MDPatcherUtils.TryCreateMetadata(moduleData, isFileLayout)) {
if (md is null)
{
throw new InvalidOperationException("Couldn't create metadata");
}
var mdEditor = new MetadataEditor(moduleData, md);
var options = MDEditorPatcherOptions.None;
if (fixTypeDefRefs)
{
options |= MDEditorPatcherOptions.UpdateTypeReferences;
}
if (addIVT)
{
options |= MDEditorPatcherOptions.AllowInternalAccess;
}
var patcher = new MDEditorPatcher(moduleData, mdEditor, tempAssembly, nonNestedEditedType, options);
patcher.Patch(module);
if (mdEditor.MustRewriteMetadata())
{
var stream = new MDWriterMemoryStream();
new MDWriter(moduleData, mdEditor, stream).Write();
NativeMemoryRawModuleBytes?newRawData = null;
try {
newRawData = new NativeMemoryRawModuleBytes((int)stream.Length, isFileLayout: true);
stream.CopyTo((IntPtr)newRawData.Pointer, newRawData.Size);
moduleData = newRawData;
}
catch {
newRawData?.Dispose();
throw;
}
}
}
DnSpyEventSource.Log.EditCodePatchModuleStop(module.Location);
}
newModuleData = moduleData;
return(true);
}
public unsafe bool Patch(ModuleDef module, out RawModuleBytes newModuleData)
{
var moduleData = this.moduleData;
// NOTE: We can't remove the type from the corlib (eg. mscorlib) because the compiler
// (Roslyn) won't recognize it as the corlib if it has any AssemblyRefs.
// A possible fix is to add a new netmodule to the corlib assembly.
bool fixTypeDefRefs = nonNestedEditedTypeOrNull != null &&
MDPatcherUtils.ExistsInMetadata(nonNestedEditedTypeOrNull) &&
MDPatcherUtils.ReferencesModule(module, nonNestedEditedTypeOrNull?.Module) &&
!module.Assembly.IsCorLib();
if (makeEverythingPublic || fixTypeDefRefs)
{
using (var md = MDPatcherUtils.TryCreateMetadata(moduleData, isFileLayout)) {
if (makeEverythingPublic)
{
new MetadataFixer(moduleData, md).MakePublic();
}
if (fixTypeDefRefs)
{
var mdEditor = new MetadataEditor(moduleData, md);
var patcher = new MDEditorPatcher(moduleData, mdEditor, tempAssembly, nonNestedEditedTypeOrNull);
patcher.Patch(module);
if (mdEditor.MustRewriteMetadata())
{
var stream = new MDWriterMemoryStream();
new MDWriter(moduleData, mdEditor, stream).Write();
NativeMemoryRawModuleBytes newRawData = null;
try {
newRawData = new NativeMemoryRawModuleBytes((int)stream.Length);
stream.CopyTo((IntPtr)newRawData.Pointer, newRawData.Size);
moduleData = newRawData;
}
catch {
newRawData?.Dispose();
throw;
}
}
}
}
}
newModuleData = moduleData;
return(true);
}