micropython: add micropython component

components/language/micropython/tests/basics/class_new.py

@@ -0,0 +1,66 @@
+try:
+    # If we don't expose object.__new__ (small ports), there's
+    # nothing to test.
+    object.__new__
+except AttributeError:
+    print("SKIP")
+    raise SystemExit
+
+class A:
+    def __new__(cls):
+        print("A.__new__")
+        return super(cls, A).__new__(cls)
+
+    def __init__(self):
+        print("A.__init__")
+
+    def meth(self):
+        print('A.meth')
+
+#print(A.__new__)
+#print(A.__init__)
+
+a = A()
+a.meth()
+
+a = A.__new__(A)
+a.meth()
+
+#print(a.meth)
+#print(a.__init__)
+#print(a.__new__)
+
+# __new__ should automatically be a staticmethod, so this should work
+a = a.__new__(A)
+a.meth()
+
+# __new__ returns not an instance of the class (None here), __init__
+# should not be called
+
+class B:
+    def __new__(self, v1, v2):
+        print("B.__new__", v1, v2)
+
+    def __init__(self, v1, v2):
+        # Should not be called in this test
+        print("B.__init__", v1, v2)
+
+print("B inst:", B(1, 2))
+
+
+# Variation of the above, __new__ returns an instance of another class,
+# __init__ should not be called
+
+class Dummy: pass
+
+class C:
+    def __new__(cls):
+        print("C.__new__")
+        return Dummy()
+
+    def __init__(self):
+        # Should not be called in this test
+        print("C.__init__")
+
+c = C()
+print(isinstance(c, Dummy))