internal static bool IsOrleansShallowCopyable(WellKnownTypes wellKnownTypes, ITypeSymbol type, HashSet <ITypeSymbol> examining)
{
switch (type.SpecialType)
{
case SpecialType.System_Boolean:
case SpecialType.System_Char:
case SpecialType.System_SByte:
case SpecialType.System_Byte:
case SpecialType.System_Int16:
case SpecialType.System_UInt16:
case SpecialType.System_Int32:
case SpecialType.System_UInt32:
case SpecialType.System_Int64:
case SpecialType.System_UInt64:
case SpecialType.System_Decimal:
case SpecialType.System_Single:
case SpecialType.System_Double:
case SpecialType.System_String:
case SpecialType.System_DateTime:
return(true);
}
if (wellKnownTypes.TimeSpan.Equals(type) ||
wellKnownTypes.IPAddress.Equals(type) ||
wellKnownTypes.IPEndPoint.Equals(type) ||
wellKnownTypes.SiloAddress.Equals(type) ||
wellKnownTypes.GrainId.Equals(type) ||
wellKnownTypes.ActivationId.Equals(type) ||
wellKnownTypes.ActivationAddress.Equals(type) ||
wellKnownTypes.CorrelationId is WellKnownTypes.Some correlationIdType && correlationIdType.Value.Equals(type) ||
wellKnownTypes.CancellationToken.Equals(type))
{
return(true);
}
if (ShallowCopyableTypes.TryGetValue(type, out var result))
{
return(result);
}
if (type.HasAttribute(wellKnownTypes.ImmutableAttribute))
{
return(ShallowCopyableTypes[type] = true);
}
if (type.HasBaseType(wellKnownTypes.Exception))
{
return(ShallowCopyableTypes[type] = true);
}
if (!(type is INamedTypeSymbol namedType))
{
return(ShallowCopyableTypes[type] = false);
}
if (namedType.IsGenericType && wellKnownTypes.Immutable_1.Equals(namedType.ConstructedFrom))
{
return(ShallowCopyableTypes[type] = true);
}
if (type.TypeKind == TypeKind.Struct && !namedType.IsGenericType && !namedType.IsUnboundGenericType)
{
return(ShallowCopyableTypes[type] = IsValueTypeFieldsShallowCopyable(wellKnownTypes, type, examining));
}
return(ShallowCopyableTypes[type] = false);
}
internal bool IsOrleansShallowCopyable(ITypeSymbol type)
{
switch (type.SpecialType)
{
case SpecialType.System_Boolean:
case SpecialType.System_Char:
case SpecialType.System_SByte:
case SpecialType.System_Byte:
case SpecialType.System_Int16:
case SpecialType.System_UInt16:
case SpecialType.System_Int32:
case SpecialType.System_UInt32:
case SpecialType.System_Int64:
case SpecialType.System_UInt64:
case SpecialType.System_Decimal:
case SpecialType.System_Single:
case SpecialType.System_Double:
case SpecialType.System_String:
case SpecialType.System_DateTime:
return(true);
}
if (SymbolEqualityComparer.Default.Equals(wellKnownTypes.TimeSpan, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.IPAddress, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.IPEndPoint, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.SiloAddress, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.GrainId, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.ActivationId, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.ActivationAddress, type) ||
wellKnownTypes.CorrelationId is WellKnownTypes.Some correlationIdType && SymbolEqualityComparer.Default.Equals(correlationIdType.Value, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.CancellationToken, type) ||
SymbolEqualityComparer.Default.Equals(wellKnownTypes.Type, type))
{
return(true);
}
if (ShallowCopyableTypes.TryGetValue(type, out var result))
{
return(result);
}
if (type.HasAttribute(wellKnownTypes.ImmutableAttribute))
{
return(ShallowCopyableTypes[type] = true);
}
if (type.HasBaseType(wellKnownTypes.Exception))
{
return(ShallowCopyableTypes[type] = true);
}
if (!(type is INamedTypeSymbol namedType))
{
return(ShallowCopyableTypes[type] = false);
}
if (namedType.IsTupleType)
{
return(ShallowCopyableTypes[type] = namedType.TupleElements.All(f => IsOrleansShallowCopyable(f.Type)));
}
else if (namedType.IsGenericType)
{
var def = namedType.ConstructedFrom;
if (def.SpecialType == SpecialType.System_Nullable_T)
{
return(ShallowCopyableTypes[type] = IsOrleansShallowCopyable(namedType.TypeArguments.Single()));
}
if (SymbolEqualityComparer.Default.Equals(wellKnownTypes.Immutable_1, def))
{
return(ShallowCopyableTypes[type] = true);
}
if (wellKnownTypes.TupleTypes.Any(t => SymbolEqualityComparer.Default.Equals(t, def)))
{
return(ShallowCopyableTypes[type] = namedType.TypeArguments.All(IsOrleansShallowCopyable));
}
}
else
{
if (type.TypeKind == TypeKind.Enum)
{
return(ShallowCopyableTypes[type] = true);
}
if (type.TypeKind == TypeKind.Struct && !namedType.IsUnboundGenericType)
{
return(ShallowCopyableTypes[type] = IsValueTypeFieldsShallowCopyable(type));
}
}
return(ShallowCopyableTypes[type] = false);
}