Annotations

Annotations

ClassTransform has two types of annotations:

• Annotations that are used to give information about the injection (e.g. CInject)
• Annotations that are used to give hints to ClassTransform (e.g. CTarget)

Injection annotations

Annotation	Description
CASM	Manually inject into a class/method using direct ASM
CInject	Inject a method call into a method
CModifyConstant	Modify a constant value in a method (e.g. int, String, float, ...)
COverride	Override a method in a class
CRecordComponent	Add a new field to a record class
CRedirect	Redirect a method call/field access
CWrapCatch	Wrap a try-catch around a method/method call
CWrapCondition	Wrap an if statement around a method call/field put

Hint annotations

Annotation	Description
CInline	Mark a method to be inlined by ClassTransform
CLocalVariable	Capture a local variable in a method and pass it to the transformer method (also allows modifying the value)
CShadow	Shadow a field/method in a transformer to make it accessible
CShared	Share a field between multiple transformer methods inside the same target method
CSlice	Specify a slice of a method for easier targeting of method calls and field accesses
CTarget	Specify a target for an injection annotation
CTransformer	Specify a target class for a transformer
CUpgrade	Upgrade a class to a newer version (Only sets the version number, no actual upgrading)