Changes between Version 140 and Version 141 of j2p

Timestamp:

10/08/24 16:33:10 (6 months ago)

Author:

wouter

Comment:

--

j2p

@@ -130 +130 @@
 ===== Workaround
 If some particular inner classes, particularly constants, are used in very specific translators, these translators may opt to attempt to recognise these and process them separately (thus avoiding calling the translator for them). One example is the JsonDeserializer (jackson-t package) that recognises use of "com.fasterxml.jackson.databind.JsonDeserializer.None". 
+
+==== Enum
+Enum classes are translated to normal Python classes. For instance if you have a class MyEnum and it has items P and Q, we assume on the python side that a class MyEnum is there with static public fields P and Q. As usual the translator initializes P and Q in the {{{_static_init}} method. This approach matches with the traditional way python supported enumerations, for example {{{math.pi}}} directly delivers the value of pi, not some placeholder.
+
+This approach ignores the more recent Python Enum class. This new approach is incompatible with the traditional approach, it gives an extra layer of indirection, it does not allow the custom constructors that we need, it is very complex, and all this complicates our translation job. 
 
 === Auto Boxing