public bool CompareMethodSignatures(RuntimeSignature signature1, RuntimeSignature signature2)
{
if (signature1.IsNativeLayoutSignature && signature2.IsNativeLayoutSignature)
{
if (signature1.StructuralEquals(signature2))
{
return(true);
}
NativeFormatModuleInfo module1 = ModuleList.GetModuleInfoByHandle(new TypeManagerHandle(signature1.ModuleHandle));
NativeReader reader1 = GetNativeLayoutInfoReader(signature1);
NativeParser parser1 = new NativeParser(reader1, signature1.NativeLayoutOffset);
NativeFormatModuleInfo module2 = ModuleList.GetModuleInfoByHandle(new TypeManagerHandle(signature2.ModuleHandle));
NativeReader reader2 = GetNativeLayoutInfoReader(signature2);
NativeParser parser2 = new NativeParser(reader2, signature2.NativeLayoutOffset);
return(CompareMethodSigs(parser1, module1, parser2, module2));
}
else if (signature1.IsNativeLayoutSignature)
{
int token = signature2.Token;
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(new TypeManagerHandle(signature2.ModuleHandle));
MethodSignatureComparer comparer = new MethodSignatureComparer(metadataReader, token.AsHandle().ToMethodHandle(metadataReader));
return(comparer.IsMatchingNativeLayoutMethodSignature(signature1));
}
else if (signature2.IsNativeLayoutSignature)
{
int token = signature1.Token;
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(new TypeManagerHandle(signature1.ModuleHandle));
MethodSignatureComparer comparer = new MethodSignatureComparer(metadataReader, token.AsHandle().ToMethodHandle(metadataReader));
return(comparer.IsMatchingNativeLayoutMethodSignature(signature2));
}
else
{
// For now, RuntimeSignatures are only used to compare for method signature equality (along with their Name)
// So we can implement this with the simple equals check
if (signature1.Token != signature2.Token)
{
return(false);
}
if (signature1.ModuleHandle != signature2.ModuleHandle)
{
return(false);
}
return(true);
}
}
public bool Equals(CallConversionInfo other)
{
if (_registrationKind != other._registrationKind)
{
return(false);
}
if (_thunkKind != other._thunkKind)
{
return(false);
}
if (_targetFunctionPointer != other._targetFunctionPointer)
{
return(false);
}
if (_instantiatingArg != other._instantiatingArg)
{
return(false);
}
switch (_registrationKind)
{
case CallConversionInfoRegistrationKind.UsesMethodSignatureAndGenericArgs:
{
return(_methodSignature.StructuralEquals(other._methodSignature) &&
ArraysAreEqual(_typeArgs, other._typeArgs) &&
ArraysAreEqual(_methodArgs, other._methodArgs));
}
case CallConversionInfoRegistrationKind.UsesArgIteratorData:
{
return(_argIteratorData.Equals(other._argIteratorData) &&
ArraysAreEqual(_paramsByRefForced, other._paramsByRefForced));
}
}
Debug.Fail("UNREACHABLE");
return(false);
}