GP-71: Prepping for source release.

Ghidra/Debug/Framework-AsyncComm/src/main/py/java/util.py

@@ -0,0 +1,55 @@
+'''
+Classes corresponding to common Java collection types
+
+These are not ports by any means of the corresponding Java types.
+Instead, they just populate the same name space so that exporting need
+not map things over. I also use them as convenient places to implement
+a common interface.
+'''
+
+from java.lang import Object
+
+
+class Collection(Object):
+
+    @classmethod
+    def validate(cls, val, **targs):
+        E = cls.resolve_targs(Collection, **targs)['E']
+        if not hasattr(val, '__iter__') or not hasattr(val, '__len__'):
+            raise ValueError(
+                "Value for %s must behave list a collection " +
+                "(__iter__ and __len__)")
+        for e in val:
+            E.validate(e)
+
+    @classmethod
+    def subst_targs(cls, E):
+        return {}
+
+
+class List(Collection):
+
+    @classmethod
+    def validate(cls, val, **targs):
+        E = cls.resolve_targs(List, **targs)['E']
+        if not hasattr(val, '__getitem__') or not hasattr(val, '__len__'):
+            raise ValueError(
+                "Value for %s must behave list a list " +
+                "(__getitem__ and __len__)")
+        for e in val:
+            E.validate(e)
+
+    @classmethod
+    def subst_targs(cls, E):
+        return dict(E=E)
+
+    @classmethod
+    def add_to(cls, l, item):
+        l.append(item)
+
+
+class ArrayList(List):
+
+    @classmethod
+    def new(cls):
+        return list()