There are currently at least two bugs when trying to use template classes in attributes:
(1) They cannot be used directly as an attribute type
(2) When using a non-template base class as attribute type, typedef's of templated derived classes are not available in the list of classes that can be set
Description
Description
Details
Details
- Severity
- Minor
- Resolution
- Open
- Reproducibility
- Always
- Operating System
- Windows 11 x64
- Category
- General
Steps To Reproduce
(1a) Compile the script below:
//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class MyConfigEntryT<Class T> : Managed {}
//------------------------------------------------------------------------------------------------
[BaseContainerProps(configRoot: true)]
class MyConfig
{
[Attribute()]
ref MyConfigEntryT<int> m_pEntry;
}(1b) Create a config of type MyConfig
(1c) Open the config, instantiate Entry, by clicking on set class, then save and close it.
(1d) Trying to open the config again will throw the message below and the class for Entry is unset.
RESOURCES : LoadGenericConfig @"{AD2A0EE4B7FFC33C}Configs/Systems/MyConfig.conf"
RESOURCES (E): Unknown class 'MyConfigEntryT' at offset 61(0x3d)
DEFAULT (E): Can't load 'Configs/Systems/MyConfig.conf' because class 'MyConfigEntryT' is unknown(2a) Compile the script below:
//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class MyBaseConfigEntry {} // Available
//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class MyDerivedConfigEntry : MyBaseConfigEntry {} // Available
//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class MyDerivedConfigEntryT<Class T> : MyBaseConfigEntry {}
//------------------------------------------------------------------------------------------------
typedef MyDerivedConfigEntryT<int> TIntMyDerivedConfigEntry; // Unavailable
//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class MyDerivedConfigEntryInt : MyDerivedConfigEntryT<int> {} // Unavailable
//------------------------------------------------------------------------------------------------
[BaseContainerProps(configRoot: true)]
class MyConfig
{
[Attribute()]
ref MyBaseConfigEntry m_pEntry;
}(2b) Open the config and try to instantiate Entry, by clicking on set class
(2c) Notice that both MyDerivedConfigEntryInt and MyDerivedConfigEntryT<int> are not available for selection
