public InstantiatedMethodKey(MethodDesc methodDef, Instantiation instantiation)
{
_methodDef = methodDef;
_instantiation = instantiation;
_hashcode = TypeHashingAlgorithms.ComputeMethodHashCode(methodDef.OwningType.GetHashCode(),
instantiation.ComputeGenericInstanceHashCode(TypeHashingAlgorithms.ComputeNameHashCode(methodDef.Name)));
}
/// <summary>
/// Builds a native hashtable containing data about each manifest resource
/// </summary>
/// <returns></returns>
private byte[] GenerateIndexBlob(NodeFactory factory)
{
NativeWriter nativeWriter = new NativeWriter();
Section indexHashtableSection = nativeWriter.NewSection();
VertexHashtable indexHashtable = new VertexHashtable();
indexHashtableSection.Place(indexHashtable);
// Build a table with a tuple of Assembly Full Name, Resource Name, Offset within the resource data blob, Length
// for each resource.
// This generates a hashtable for the convenience of managed code since there's
// a reader for VertexHashtable, but not for VertexSequence.
foreach (ResourceIndexData indexData in _resourceDataNode.GetOrCreateIndexData(factory))
{
Vertex asmName = nativeWriter.GetStringConstant(indexData.AssemblyName);
Vertex resourceName = nativeWriter.GetStringConstant(indexData.ResourceName);
Vertex offsetVertex = nativeWriter.GetUnsignedConstant((uint)indexData.NativeOffset);
Vertex lengthVertex = nativeWriter.GetUnsignedConstant((uint)indexData.Length);
Vertex indexVertex = nativeWriter.GetTuple(asmName, resourceName);
indexVertex = nativeWriter.GetTuple(indexVertex, offsetVertex);
indexVertex = nativeWriter.GetTuple(indexVertex, lengthVertex);
int hashCode = TypeHashingAlgorithms.ComputeNameHashCode(indexData.AssemblyName);
indexHashtable.Append((uint)hashCode, indexHashtableSection.Place(indexVertex));
}
byte[] blob = nativeWriter.Save();
_endSymbol.SetSymbolOffset(blob.Length);
return(blob);
}
public override int GetHashCode()
{
// TODO: Determine what a the right hash function should be. Use stable hashcode based on the type name?
// For now, use the same hash as a SignatureVariable type.
GenericParameter parameter = _module.MetadataReader.GetGenericParameter(_handle);
return(TypeHashingAlgorithms.ComputeSignatureVariableHashCode(parameter.Index, parameter.Parent.Kind == HandleKind.MethodDefinition));
}
public override int GetHashCode()
{
if (!_hashCode.HasValue)
{
_hashCode = _declaringTypeHandle.GetHashCode() ^ TypeHashingAlgorithms.ComputeGenericInstanceHashCode(TypeHashingAlgorithms.ComputeNameHashCode(_methodNameAndSignature.Name), _genericMethodArgumentHandles);
}
return(_hashCode.Value);
}
public override int GetHashCode()
{
if (!_hashCode.HasValue)
{
_hashCode = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(_genericTypeDefinitionHandle.GetHashCode(), _genericTypeArgumentHandles);
}
return(_hashCode.Value);
}
public RuntimeMethodKey(bool unboxingStub, DefType owningType, MethodNameAndSignature nameAndSignature)
{
_unboxingStub = unboxingStub;
_owningType = owningType;
_methodNameAndSignature = nameAndSignature;
_hashCode = TypeHashingAlgorithms.ComputeMethodHashCode(owningType.GetHashCode(), TypeHashingAlgorithms.ComputeNameHashCode(nameAndSignature.Name));
}
public override int GetHashCode()
{
if (_hashcode == 0)
{
_hashcode = TypeHashingAlgorithms.ComputeNameHashCode(FullName);
}
return(_hashcode);
}
public void TestSingleDimensionalArrays()
{
DefType systemArrayType = _context.GetWellKnownType(WellKnownType.Array);
TypeDesc objectType = _context.GetWellKnownType(WellKnownType.Object);
ArrayType objectArray = _context.GetArrayType(objectType);
Assert.Equal(TypeHashingAlgorithms.ComputeArrayTypeHashCode(objectType.GetHashCode(), 1), objectArray.GetHashCode());
}
public RuntimeMethodHandleKey(RuntimeTypeHandle declaringType, string methodName, RuntimeSignature signature, RuntimeTypeHandle[] genericArgs)
{
Debug.Assert(genericArgs != null);
_declaringType = declaringType;
_methodName = methodName;
_signature = signature;
_genericArgs = genericArgs;
_hashcode = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(declaringType.GetHashCode(), genericArgs) ^ methodName.GetHashCode() ^ signature.GetHashCode();
}
void TestGenericTypes()
{
MetadataType ilistType = (MetadataType)_testModule.GetType("System.Collections.Generic", "IList`1");
DefType systemArrayType = _context.GetWellKnownType(WellKnownType.Array);
DefType ilistOfSystemArray = ilistType.MakeInstantiatedType(systemArrayType);
int expectedIListOfTHashcode = TypeHashingAlgorithms.ComputeNameHashCode("System.Collections.Generic.IList`1");
int expectedSystemArrayHashcode = TypeHashingAlgorithms.ComputeNameHashCode("System.Array");
Assert.Equal(expectedIListOfTHashcode, ilistType.GetHashCode());
Assert.Equal(TypeHashingAlgorithms.ComputeGenericInstanceHashCode(expectedIListOfTHashcode, new int[] { expectedSystemArrayHashcode }), ilistOfSystemArray.GetHashCode());
}
public void TestNonGenericTypes()
{
DefType systemArrayType = _context.GetWellKnownType(WellKnownType.Array);
MetadataType nonNestedType = (MetadataType)_testModule.GetType("Hashcode", "NonNestedType");
TypeDesc nestedType = nonNestedType.GetNestedType("NestedType");
int expectedNonNestedTypeHashcode = TypeHashingAlgorithms.ComputeNameHashCode("Hashcode.NonNestedType");
int expectedNestedTypeNameHashcode = TypeHashingAlgorithms.ComputeNameHashCode("NestedType");
int expectedNestedTypeHashcode = TypeHashingAlgorithms.ComputeNestedTypeHashCode(expectedNonNestedTypeHashcode, expectedNestedTypeNameHashcode);
Assert.Equal(expectedNonNestedTypeHashcode, nonNestedType.GetHashCode());
Assert.Equal(expectedNestedTypeHashcode, nestedType.GetHashCode());
}
public void TestMultidimensionalArrays()
{
DefType systemArrayType = _context.GetWellKnownType(WellKnownType.Array);
TypeDesc objectType = _context.GetWellKnownType(WellKnownType.Object);
ArrayType objectMDArrayRank1 = _context.GetArrayType(objectType, 1);
ArrayType objectMDArrayRank2 = _context.GetArrayType(objectType, 2);
ArrayType objectMDArrayRank3 = _context.GetArrayType(objectType, 3);
Assert.Equal(TypeHashingAlgorithms.ComputeArrayTypeHashCode(objectType.GetHashCode(), 1), objectMDArrayRank1.GetHashCode());
Assert.Equal(TypeHashingAlgorithms.ComputeArrayTypeHashCode(objectType.GetHashCode(), 2), objectMDArrayRank2.GetHashCode());
Assert.Equal(TypeHashingAlgorithms.ComputeArrayTypeHashCode(objectType.GetHashCode(), 3), objectMDArrayRank3.GetHashCode());
}
public void TestByRefTypes()
{
DefType intType = _context.GetWellKnownType(WellKnownType.Int32);
int expHashInt = TypeHashingAlgorithms.ComputeNameHashCode("System.Int32");
Assert.Equal(expHashInt, intType.GetHashCode());
int expHashIntByRef = TypeHashingAlgorithms.ComputeByrefTypeHashCode(expHashInt);
TypeDesc intByRefType = _context.GetByRefType(intType);
Assert.Equal(expHashIntByRef, intByRefType.GetHashCode());
}
public string Lookup(string s)
{
int hashCode = TypeHashingAlgorithms.ComputeNameHashCode(s);
string existing = Find(hashCode, s);
if (existing != null)
{
return(existing);
}
return(Add(hashCode, s));
}
public void TestFunctionPointerTypes()
{
DefType intType = _context.GetWellKnownType(WellKnownType.Int32);
DefType objectType = _context.GetWellKnownType(WellKnownType.Object);
int expHashInt = TypeHashingAlgorithms.ComputeNameHashCode("System.Int32");
int expHashObject = TypeHashingAlgorithms.ComputeNameHashCode("System.Object");
int expHashFnPtr = TypeHashingAlgorithms.ComputeMethodSignatureHashCode(expHashInt, new[] { expHashObject });
MethodSignature fnPtrSig = new MethodSignature(MethodSignatureFlags.None, 0, intType, new TypeDesc[] { objectType });
var fnPtrType = _context.GetFunctionPointerType(fnPtrSig);
Assert.Equal(expHashFnPtr, fnPtrType.GetHashCode());
}
public override unsafe string GetString(byte *bytes, int byteCount)
{
bool isAscii;
int hashCode = TypeHashingAlgorithms.ComputeASCIINameHashCode(bytes, byteCount, out isAscii);
if (isAscii)
{
string existing = FindASCII(hashCode, bytes, byteCount);
if (existing != null)
{
return(existing);
}
return(Add(hashCode, Encoding.GetString(bytes, byteCount)));
}
return(Lookup(Encoding.GetString(bytes, byteCount)));
}
public override int GetHashCode()
{
if (_hashcode != 0)
{
return(_hashcode);
}
int nameHash = TypeHashingAlgorithms.ComputeNameHashCode(this.GetFullName());
TypeDesc containingType = ContainingType;
if (containingType == null)
{
_hashcode = nameHash;
}
else
{
_hashcode = TypeHashingAlgorithms.ComputeNestedTypeHashCode(containingType.GetHashCode(), nameHash);
}
return(_hashcode);
}
private int InitializeHashCode()
{
TypeDesc containingType = ContainingType;
if (containingType == null)
{
string ns = Namespace;
var hashCodeBuilder = new TypeHashingAlgorithms.HashCodeBuilder(ns);
if (ns.Length > 0)
hashCodeBuilder.Append(".");
hashCodeBuilder.Append(Name);
_hashcode = hashCodeBuilder.ToHashCode();
}
else
{
_hashcode = TypeHashingAlgorithms.ComputeNestedTypeHashCode(
containingType.GetHashCode(), TypeHashingAlgorithms.ComputeNameHashCode(Name));
}
return _hashcode;
}
public override int GetHashCode()
{
if (!_hashCode.HasValue)
{
int hashCode = 79 + 971 * (int)_thunkKind + 83 * (_targetFunctionPointer.GetHashCode() >> 7) + 13 * (_instantiatingArg.GetHashCode() >> 3);
switch (_registrationKind)
{
case CallConversionInfoRegistrationKind.UsesMethodSignatureAndGenericArgs:
hashCode ^= _methodSignature.GetHashCode();
hashCode = _typeArgs == null ? hashCode : TypeHashingAlgorithms.ComputeGenericInstanceHashCode(hashCode, _typeArgs);
hashCode = _methodArgs == null ? hashCode : TypeHashingAlgorithms.ComputeGenericInstanceHashCode(hashCode, _methodArgs);
break;
case CallConversionInfoRegistrationKind.UsesArgIteratorData:
hashCode ^= _argIteratorData.GetHashCode();
break;
}
_hashCode = hashCode;
}
return(_hashCode.Value);
}
public RuntimeMethodHandleKey(RuntimeTypeHandle declaringType, string methodName, RuntimeSignature signature, RuntimeTypeHandle[] genericArgs)
{
// genericArgs will be null if this is a (typical or not) method definition
// genericArgs are non-null only for instantiated generic methods.
Debug.Assert(genericArgs == null || genericArgs.Length > 0);
_declaringType = declaringType;
_methodName = methodName;
_signature = signature;
_genericArgs = genericArgs;
int methodNameHashCode = methodName == null ? 0 : methodName.GetHashCode();
_hashcode = methodNameHashCode ^ signature.GetHashCode();
if (genericArgs != null)
{
_hashcode ^= TypeHashingAlgorithms.ComputeGenericInstanceHashCode(declaringType.GetHashCode(), genericArgs);
}
else
{
_hashcode ^= declaringType.GetHashCode();
}
}
public void TestInstantiatedMethods()
{
MetadataType nonNestedType = (MetadataType)_testModule.GetType("Hashcode", "NonNestedType");
MetadataType genericType = (MetadataType)_testModule.GetType("Hashcode", "GenericType`2");
DefType intType = _context.GetWellKnownType(WellKnownType.Int32);
DefType stringType = _context.GetWellKnownType(WellKnownType.String);
MetadataType genericTypeOfIntString = genericType.MakeInstantiatedType(intType, stringType);
MetadataType genericTypeOfStringInt = genericType.MakeInstantiatedType(stringType, intType);
// build up expected hash codes for the above
int expHashNonNestedType = TypeHashingAlgorithms.ComputeNameHashCode("Hashcode.NonNestedType");
Assert.Equal(expHashNonNestedType, nonNestedType.GetHashCode());
int expHashGenType = TypeHashingAlgorithms.ComputeNameHashCode("Hashcode.GenericType`2");
Assert.Equal(expHashGenType, genericType.GetHashCode());
int expHashInt = TypeHashingAlgorithms.ComputeNameHashCode("System.Int32");
Assert.Equal(expHashInt, intType.GetHashCode());
int expHashString = TypeHashingAlgorithms.ComputeNameHashCode("System.String");
Assert.Equal(expHashString, stringType.GetHashCode());
int expHashGenTypeOfIS = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(expHashGenType, new int[] { expHashInt, expHashString });
Assert.Equal(expHashGenTypeOfIS, genericTypeOfIntString.GetHashCode());
int expHashGenTypeOfSI = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(expHashGenType, new int[] { expHashString, expHashInt });
Assert.Equal(expHashGenTypeOfSI, genericTypeOfStringInt.GetHashCode());
// Test that instantiated method's have the right hashes
int genMethodNameHash = TypeHashingAlgorithms.ComputeNameHashCode("GenericMethod");
int genMethodNameAndIHash = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(genMethodNameHash, new int[] { expHashInt });
int genMethodNameAndSHash = TypeHashingAlgorithms.ComputeGenericInstanceHashCode(genMethodNameHash, new int[] { expHashString });
Action <MetadataType, int> testSequence = (MetadataType typeWithGenericMethod, int expectedTypeHash) =>
{
// Uninstantiated Generic method
MethodDesc genMethod = typeWithGenericMethod.GetMethod("GenericMethod", null);
Assert.Equal(TypeHashingAlgorithms.ComputeMethodHashCode(expectedTypeHash, genMethodNameHash), genMethod.GetHashCode());
// Instantiated over int
MethodDesc genMethodI = genMethod.MakeInstantiatedMethod(intType);
Assert.Equal(TypeHashingAlgorithms.ComputeMethodHashCode(expectedTypeHash, genMethodNameAndIHash), genMethodI.GetHashCode());
// Instantiated over string
MethodDesc genMethodS = genMethod.MakeInstantiatedMethod(stringType);
Assert.Equal(TypeHashingAlgorithms.ComputeMethodHashCode(expectedTypeHash, genMethodNameAndSHash), genMethodS.GetHashCode());
// Assert they aren't the same as the other hashes
Assert.NotEqual(genMethodI.GetHashCode(), genMethodS.GetHashCode());
Assert.NotEqual(genMethodI.GetHashCode(), genMethod.GetHashCode());
Assert.NotEqual(genMethodS.GetHashCode(), genMethod.GetHashCode());
};
// Test cases on non-generic type
testSequence(nonNestedType, expHashNonNestedType);
// Test cases on generic type
testSequence(genericType, expHashGenType);
// Test cases on instantiated generic type
testSequence(genericTypeOfIntString, expHashGenTypeOfIS);
testSequence(genericTypeOfStringInt, expHashGenTypeOfSI);
}
public MethodForInstantiatedTypeKey(MethodDesc typicalMethodDef, InstantiatedType instantiatedType)
{
_typicalMethodDef = typicalMethodDef;
_instantiatedType = instantiatedType;
_hashcode = TypeHashingAlgorithms.ComputeMethodHashCode(instantiatedType.GetHashCode(), TypeHashingAlgorithms.ComputeNameHashCode(typicalMethodDef.Name));
}
internal override int LookupHashCode()
{
return(_typeToLookup != null?_typeToLookup.GetHashCode() : TypeHashingAlgorithms.ComputeGenericInstanceHashCode(_genericTypeDefinitionHandle.GetHashCode(), _genericTypeArgumentHandles));
}
protected override int GetValueHashCode(ArrayType value)
{
return(TypeHashingAlgorithms.ComputeArrayTypeHashCode(value.ElementType, value.IsSzArray ? -1 : value.Rank));
}
protected override int GetKeyHashCode(ArrayTypeKey key)
{
return(TypeHashingAlgorithms.ComputeArrayTypeHashCode(key._elementType, key._rank));
}
/// <summary>
/// Compute HashCode. Should only be overriden by a MethodDesc that represents an instantiated method.
/// </summary>
protected virtual int ComputeHashCode()
{
return(TypeHashingAlgorithms.ComputeMethodHashCode(OwningType.GetHashCode(), TypeHashingAlgorithms.ComputeNameHashCode(Name)));
}
public override int GetHashCode()
{
return(TypeHashingAlgorithms.ComputeMethodSignatureHashCode(_returnType.GetHashCode(), _parameters));
}
internal override int LookupHashCode()
{
// Todo: Signatures in the hash code.
return(_methodToLookup != null?_methodToLookup.GetHashCode() : (_declaringType.GetHashCode() ^ TypeHashingAlgorithms.ComputeGenericInstanceHashCode(TypeHashingAlgorithms.ComputeNameHashCode(_nameAndSignature.Name), _genericMethodArgumentHandles)));
}
protected override int ComputeHashCode()
{
return(TypeHashingAlgorithms.ComputeMethodHashCode(OwningType.GetHashCode(), Instantiation.ComputeGenericInstanceHashCode(TypeHashingAlgorithms.ComputeNameHashCode(Name))));
}
public override int GetHashCode()
{
return(TypeHashingAlgorithms.ComputeSignatureVariableHashCode(Index, true));
}