private static ValueSerializer GetUsingAttribute(ModuleDefinition module, TypeDefinition holder, ICustomAttributeProvider attributeProvider, TypeReference fieldType, string fieldName, ValueSerializer valueSerializer)
{
if (attributeProvider.HasCustomAttribute <BitCountAttribute>())
{
valueSerializer = BitCountFinder.GetSerializer(attributeProvider, fieldType);
}
if (attributeProvider.HasCustomAttribute <VarIntAttribute>())
{
if (HasIntAttribute(valueSerializer))
{
throw new VarIntException($"[VarInt] can't be used with [BitCount], [VarIntBlocks] or [BitCountFromRange]");
}
valueSerializer = new VarIntFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <VarIntBlocksAttribute>())
{
if (HasIntAttribute(valueSerializer))
{
throw new VarIntBlocksException($"[VarIntBlocks] can't be used with [BitCount], [VarInt] or [BitCountFromRange]");
}
valueSerializer = VarIntBlocksFinder.GetSerializer(attributeProvider, fieldType);
}
if (attributeProvider.HasCustomAttribute <BitCountFromRangeAttribute>())
{
if (HasIntAttribute(valueSerializer))
{
throw new BitCountFromRangeException($"[BitCountFromRange] can't be used with [BitCount], [VarInt] or [VarIntBlocks]");
}
valueSerializer = BitCountFromRangeFinder.GetSerializer(attributeProvider, fieldType);
}
ZigZagFinder.CheckZigZag(attributeProvider, fieldType, ref valueSerializer);
if (attributeProvider.HasCustomAttribute <FloatPackAttribute>())
{
valueSerializer = new FloatPackFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <Vector2PackAttribute>())
{
valueSerializer = new Vector2Finder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <Vector3PackAttribute>())
{
valueSerializer = new Vector3Finder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <QuaternionPackAttribute>())
{
valueSerializer = new QuaternionFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
return(valueSerializer);
}
/// <summary>
///
/// </summary>
/// <param name="module">dll being weaved</param>
/// <param name="holder">class that will old any packer functions</param>
/// <param name="attributeProvider">a field or param that might have attribute</param>
/// <param name="fieldType">type of the field or param with the attribute</param>
/// <param name="fieldName">name that will be used for packer field</param>
/// <param name="writers"></param>
/// <param name="readers"></param>
/// <returns></returns>
/// <exception cref="ValueSerializerException">Throws when attribute is used incorrectly</exception>
/// <exception cref="SerializeFunctionException">Throws when can not generate read or write function</exception>
/// <exception cref="InvalidOperationException">Throws when <paramref name="holder"/> is not in <paramref name="module"/></exception>
public static ValueSerializer GetSerializer(ModuleDefinition module, TypeDefinition holder, ICustomAttributeProvider attributeProvider, TypeReference fieldType, string fieldName, Writers writers, Readers readers)
{
if (holder.Module != module)
{
throw new InvalidOperationException($"{holder.Name} was not in the weaving module, holderModule: {holder.Module}, weaver Module: {module}");
}
// Store result in variable but DONT return early
// We need to check if other attributes are also used
// if user adds 2 attributes that dont work together weaver should then throw error
ValueSerializer valueSerializer = null;
bool HasIntAttribute() => valueSerializer != null && valueSerializer.IsIntType;
if (attributeProvider.HasCustomAttribute <BitCountAttribute>())
{
valueSerializer = BitCountFinder.GetSerializer(attributeProvider, fieldType);
}
if (attributeProvider.HasCustomAttribute <VarIntAttribute>())
{
if (HasIntAttribute())
{
throw new VarIntException($"[VarInt] can't be used with [BitCount], [VarIntBlocks] or [BitCountFromRange]");
}
valueSerializer = new VarIntFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <VarIntBlocksAttribute>())
{
if (HasIntAttribute())
{
throw new VarIntBlocksException($"[VarIntBlocks] can't be used with [BitCount], [VarInt] or [BitCountFromRange]");
}
valueSerializer = VarIntBlocksFinder.GetSerializer(attributeProvider, fieldType);
}
if (attributeProvider.HasCustomAttribute <BitCountFromRangeAttribute>())
{
if (HasIntAttribute())
{
throw new BitCountFromRangeException($"[BitCountFromRange] can't be used with [BitCount], [VarInt] or [VarIntBlocks]");
}
valueSerializer = BitCountFromRangeFinder.GetSerializer(attributeProvider, fieldType);
}
ZigZagFinder.CheckZigZag(attributeProvider, fieldType, ref valueSerializer);
if (attributeProvider.HasCustomAttribute <FloatPackAttribute>())
{
valueSerializer = new FloatPackFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <Vector2PackAttribute>())
{
valueSerializer = new Vector2Finder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <Vector3PackAttribute>())
{
valueSerializer = new Vector3Finder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (attributeProvider.HasCustomAttribute <QuaternionPackAttribute>())
{
valueSerializer = new QuaternionFinder().GetSerializer(module, holder, attributeProvider, fieldType, fieldName);
}
if (valueSerializer == null)
{
valueSerializer = FindSerializeFunctions(writers, readers, fieldType);
}
return(valueSerializer);
}