private NativeFormatRuntimeNamedTypeInfo(MetadataReader reader, TypeDefinitionHandle typeDefinitionHandle, RuntimeTypeHandle typeHandle) :
base(typeHandle)
{
_reader = reader;
_typeDefinitionHandle = typeDefinitionHandle;
_typeDefinition = _typeDefinitionHandle.GetTypeDefinition(reader);
}
public unsafe bool TryGetMetadataForNamedType(RuntimeTypeHandle runtimeTypeHandle, out MetadataReader metadataReader, out TypeDefinitionHandle typeDefHandle)
{
// Iterate over all modules, starting with the module that defines the EEType
foreach (IntPtr moduleHandle in ModuleList.Enumerate(RuntimeAugments.GetModuleFromTypeHandle(runtimeTypeHandle)))
{
MetadataTable mapTable = MetadataTable.CreateTypeMapTable(moduleHandle);
foreach (var ptrEntry in mapTable)
{
var pCurrentEntry = (TypeMapEntry*)ptrEntry;
RuntimeTypeHandle entryTypeHandle = RuntimeAugments.CreateRuntimeTypeHandle(pCurrentEntry->EEType);
Handle entryMetadataHandle = pCurrentEntry->TypeDefinitionHandle.AsHandle();
if (entryTypeHandle.Equals(runtimeTypeHandle) &&
entryMetadataHandle.HandleType == HandleType.TypeDefinition)
{
metadataReader = ModuleList.Instance.GetMetadataReaderForModule(moduleHandle);
typeDefHandle = entryMetadataHandle.ToTypeDefinitionHandle(metadataReader);
return true;
}
}
}
metadataReader = null;
typeDefHandle = default(TypeDefinitionHandle);
return false;
}
internal NativeFormatType(NativeFormatMetadataUnit metadataUnit, TypeDefinitionHandle handle)
{
_handle = handle;
_metadataUnit = metadataUnit;
_typeDefinition = metadataUnit.MetadataReader.GetTypeDefinition(handle);
_module = metadataUnit.GetModuleFromNamespaceDefinition(_typeDefinition.NamespaceDefinition);
_baseType = this; // Not yet initialized flag
#if DEBUG
// Initialize name eagerly in debug builds for convenience
this.ToString();
#endif
}
public unsafe bool TryGetNamedTypeForMetadata(MetadataReader metadataReader, TypeDefinitionHandle typeDefHandle, out RuntimeTypeHandle runtimeTypeHandle)
{
IntPtr moduleHandle = ModuleList.Instance.GetModuleForMetadataReader(metadataReader);
MetadataTable mapTable = MetadataTable.CreateTypeMapTable(moduleHandle);
foreach (var ptrEntry in mapTable)
{
TypeMapEntry* pCurrentEntry = (TypeMapEntry*)ptrEntry;
if (pCurrentEntry->TypeDefinitionHandle.AsHandle().Equals(typeDefHandle))
{
runtimeTypeHandle = RuntimeAugments.CreateRuntimeTypeHandle(pCurrentEntry->EEType);
return true;
}
}
runtimeTypeHandle = default(RuntimeTypeHandle);
return false;
}
public unsafe void TestDefinitionHashCodes()
{
var wr = new Writer.MetadataWriter();
wr.ScopeDefinitions.Add(BuildSimpleTestDefinitionData());
var ms = new MemoryStream();
wr.Write(ms);
fixed(byte *pBuffer = ms.ToArray())
{
var rd = new Reader.MetadataReader((IntPtr)pBuffer, (int)ms.Length);
Reader.ScopeDefinitionHandle scopeHandle = rd.ScopeDefinitions.Single();
Reader.ScopeDefinition systemRuntimeScope = scopeHandle.GetScopeDefinition(rd);
// Validate root type hash code
Reader.NamespaceDefinition rootNamespace = systemRuntimeScope.RootNamespaceDefinition.GetNamespaceDefinition(rd);
Reader.TypeDefinitionHandle moduleTypeHandle = rootNamespace.TypeDefinitions.Single();
Assert.Equal(TypeHashingAlgorithms.ComputeNameHashCode("<Module>"), MetadataTypeHashingAlgorithms.ComputeHashCode(moduleTypeHandle, rd));
// Validate namespace type hashcode
Reader.NamespaceDefinition systemNamespace = rootNamespace.NamespaceDefinitions.Single().GetNamespaceDefinition(rd);
Reader.TypeDefinitionHandle objectTypeHandle = systemNamespace.TypeDefinitions.Single();
int objectHashCode = TypeHashingAlgorithms.ComputeNameHashCode("System.Object");
Assert.Equal(objectHashCode, MetadataTypeHashingAlgorithms.ComputeHashCode(objectTypeHandle, rd));
// Validate nested type hashcode
Reader.TypeDefinitionHandle nestedTypeHandle = objectTypeHandle.GetTypeDefinition(rd).NestedTypes.Single();
int nestedHashCode = TypeHashingAlgorithms.ComputeNestedTypeHashCode(objectHashCode, TypeHashingAlgorithms.ComputeNameHashCode("Nested"));
Assert.Equal(nestedHashCode, MetadataTypeHashingAlgorithms.ComputeHashCode(nestedTypeHandle, rd));
// Validate really nested type hashcode
Reader.TypeDefinitionHandle reallyNestedTypeHandle = nestedTypeHandle.GetTypeDefinition(rd).NestedTypes.Single();
int reallyNestedHashCode = TypeHashingAlgorithms.ComputeNestedTypeHashCode(nestedHashCode, TypeHashingAlgorithms.ComputeNameHashCode("ReallyNested"));
Assert.Equal(reallyNestedHashCode, MetadataTypeHashingAlgorithms.ComputeHashCode(reallyNestedTypeHandle, rd));
}
}
public unsafe bool TryGetMetadataForNamedType(RuntimeTypeHandle runtimeTypeHandle, out MetadataReader metadataReader, out TypeDefinitionHandle typeDefHandle)
{
// Iterate over all modules, starting with the module that defines the EEType
foreach (IntPtr moduleHandle in ModuleList.Enumerate(RuntimeAugments.GetModuleFromTypeHandle(runtimeTypeHandle)))
{
NativeReader typeMapReader;
if (TryGetNativeReaderForBlob(moduleHandle, ReflectionMapBlob.TypeMap, out typeMapReader))
{
NativeParser typeMapParser = new NativeParser(typeMapReader, 0);
NativeHashtable typeHashtable = new NativeHashtable(typeMapParser);
ExternalReferencesTable externalReferences = default(ExternalReferencesTable);
externalReferences.InitializeCommonFixupsTable(moduleHandle);
var lookup = typeHashtable.Lookup(runtimeTypeHandle.GetHashCode());
NativeParser entryParser;
while (!(entryParser = lookup.GetNext()).IsNull)
{
RuntimeTypeHandle foundType = externalReferences.GetRuntimeTypeHandleFromIndex(entryParser.GetUnsigned());
if (foundType.Equals(runtimeTypeHandle))
{
Handle entryMetadataHandle = entryParser.GetUnsigned().AsHandle();
if (entryMetadataHandle.HandleType == HandleType.TypeDefinition)
{
metadataReader = ModuleList.Instance.GetMetadataReaderForModule(moduleHandle);
typeDefHandle = entryMetadataHandle.ToTypeDefinitionHandle(metadataReader);
return true;
}
}
}
}
}
metadataReader = null;
typeDefHandle = default(TypeDefinitionHandle);
return false;
}
public abstract bool TryGetNamedTypeForMetadata(MetadataReader metadataReader, TypeDefinitionHandle typeDefHandle, out RuntimeTypeHandle runtimeTypeHandle);
//============================================================================================== // Reflection Mapping Tables //============================================================================================== public abstract bool TryGetMetadataForNamedType(RuntimeTypeHandle runtimeTypeHandle, out MetadataReader metadataReader, out TypeDefinitionHandle typeDefHandle);
} // IsNull
internal bool IsNull(TypeDefinitionHandle handle)
{
return (handle._value & 0x00FFFFFF) == 0;
} // IsNull
} // ToHandle
internal Handle ToHandle(TypeDefinitionHandle handle)
{
return new Handle(handle._value);
} // ToHandle
} // GetScopeReference
public TypeDefinition GetTypeDefinition(TypeDefinitionHandle handle)
{
var record = new TypeDefinition() { _reader = this, _handle = handle };
var offset = (uint)handle.Offset;
offset = _streamReader.Read(offset, out record._flags);
offset = _streamReader.Read(offset, out record._baseType);
offset = _streamReader.Read(offset, out record._namespaceDefinition);
offset = _streamReader.Read(offset, out record._name);
offset = _streamReader.Read(offset, out record._size);
offset = _streamReader.Read(offset, out record._packingSize);
offset = _streamReader.Read(offset, out record._enclosingType);
offset = _streamReader.Read(offset, out record._nestedTypes);
offset = _streamReader.Read(offset, out record._methods);
offset = _streamReader.Read(offset, out record._fields);
offset = _streamReader.Read(offset, out record._properties);
offset = _streamReader.Read(offset, out record._events);
offset = _streamReader.Read(offset, out record._genericParameters);
offset = _streamReader.Read(offset, out record._interfaces);
offset = _streamReader.Read(offset, out record._methodImpls);
offset = _streamReader.Read(offset, out record._customAttributes);
return record;
} // GetTypeDefinition
} // Read
public static uint Read(this NativeReader reader, uint offset, out TypeDefinitionHandle handle)
{
uint value;
offset = reader.DecodeUnsigned(offset, out value);
handle = new TypeDefinitionHandle((int)value);
handle._Validate();
return offset;
} // Read
public unsafe bool TryGetOrCreateNamedTypeForMetadata(
MetadataReader metadataReader,
TypeDefinitionHandle typeDefHandle,
out RuntimeTypeHandle runtimeTypeHandle)
{
if (TryGetNamedTypeForMetadata(metadataReader, typeDefHandle, out runtimeTypeHandle))
{
return true;
}
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
IntPtr moduleHandle = ModuleList.Instance.GetModuleForMetadataReader(metadataReader);
IntPtr runtimeTypeHandleAsIntPtr;
if (TryResolveSingleMetadataFixup(
moduleHandle,
typeDefHandle.ToHandle(metadataReader).ToInt(),
MetadataFixupKind.TypeHandle,
out runtimeTypeHandleAsIntPtr))
{
runtimeTypeHandle = *(RuntimeTypeHandle*)&runtimeTypeHandleAsIntPtr;
return true;
}
#endif
return false;
}
public abstract IEnumerable<CustomAttributeData> GetPseudoCustomAttributes(MetadataReader reader, PropertyHandle propertyHandle, TypeDefinitionHandle declaringTypeHandle);
} // Read
public static uint Read(this NativeReader reader, uint offset, out TypeDefinitionHandle[] values)
{
uint count;
offset = reader.DecodeUnsigned(offset, out count);
#if !NETFX_45
if (count == 0)
{
values = Array.Empty<TypeDefinitionHandle>();
}
else
#endif
{
values = new TypeDefinitionHandle[count];
for (uint i = 0; i < count; ++i)
{
TypeDefinitionHandle tmp;
offset = reader.Read(offset, out tmp);
values[i] = tmp;
}
}
return offset;
} // Read
public abstract IEnumerable<CustomAttributeData> GetPsuedoCustomAttributes(MetadataReader reader, TypeDefinitionHandle typeDefinitionHandle);
public abstract IEnumerable<CustomAttributeData> GetPsuedoCustomAttributes(MetadataReader reader, EventHandle eventHandle, TypeDefinitionHandle declaringTypeHandle);
public unsafe bool TryGetNamedTypeForMetadata(MetadataReader metadataReader, TypeDefinitionHandle typeDefHandle, out RuntimeTypeHandle runtimeTypeHandle)
{
int hashCode = typeDefHandle.ComputeHashCode(metadataReader);
IntPtr moduleHandle = ModuleList.Instance.GetModuleForMetadataReader(metadataReader);
NativeReader typeMapReader;
if (TryGetNativeReaderForBlob(moduleHandle, ReflectionMapBlob.TypeMap, out typeMapReader))
{
NativeParser typeMapParser = new NativeParser(typeMapReader, 0);
NativeHashtable typeHashtable = new NativeHashtable(typeMapParser);
ExternalReferencesTable externalReferences = default(ExternalReferencesTable);
externalReferences.InitializeCommonFixupsTable(moduleHandle);
var lookup = typeHashtable.Lookup(hashCode);
NativeParser entryParser;
while (!(entryParser = lookup.GetNext()).IsNull)
{
var foundTypeIndex = entryParser.GetUnsigned();
if (entryParser.GetUnsigned().AsHandle().Equals(typeDefHandle))
{
runtimeTypeHandle = externalReferences.GetRuntimeTypeHandleFromIndex(foundTypeIndex);
return true;
}
}
}
runtimeTypeHandle = default(RuntimeTypeHandle);
return false;
}
} // Read
public static uint Read(this NativeReader reader, uint offset, out TypeDefinitionHandle[] values)
{
uint count;
offset = reader.DecodeUnsigned(offset, out count);
if (count == 0)
{
values = s_emptyTypeDefinitionHandleArray;
}
else
{
values = new TypeDefinitionHandle[count];
for (uint i = 0; i < count; ++i)
{
TypeDefinitionHandle tmp;
offset = reader.Read(offset, out tmp);
values[i] = tmp;
}
}
return offset;
} // Read
} // Equals
public bool Equals(TypeDefinitionHandle handle)
{
return _value == handle._value;
} // Equals
