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Make iteasy to inherit from exported Java classes. #13

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Make iteasy to inherit from exported Java classes. #13

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16 changes: 13 additions & 3 deletions jnius/jnius_export_class.pxi
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,7 @@ cdef dict jclass_register = {}

class MetaJavaClass(type):
def __new__(meta, classname, bases, classDict):
meta.resolve_class(classDict)
meta.resolve_class(classDict, bases)
tp = type.__new__(meta, classname, bases, classDict)
jclass_register[classDict['__javaclass__']] = tp
return tp
Expand All @@ -38,10 +38,20 @@ class MetaJavaClass(type):
return jclass_register.get(name)

@classmethod
def resolve_class(meta, classDict):
def resolve_class(meta, classDict, bases):
def find_javaclass(bases):
import inspect
for b in bases:
if hasattr(b, '__javaclass__'):
return b.__javaclass__

# search the Java class, and bind to our object
if not '__javaclass__' in classDict:
raise JavaException('__javaclass__ definition missing')
# try base classes. This allows inheriting from Java classes.
cls = find_javaclass(bases)
if cls is None:
raise JavaException('__javaclass__ definition missing')
classDict['__javaclass__'] = cls

cdef JavaClassStorage jcs = JavaClassStorage()
cdef bytes __javaclass__ = <bytes>classDict['__javaclass__']
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