micropython: add micropython component

components/language/micropython/tests/basics/gen_yield_from_throw3.py

@@ -0,0 +1,57 @@
+# yield-from a user-defined generator with a throw() method
+
+class Iter:
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        return 1
+
+    def throw(self, x):
+        print('throw', x)
+        return 456
+
+def gen():
+    yield from Iter()
+
+# calling close() should not call throw()
+g = gen()
+print(next(g))
+g.close()
+
+# can throw a non-exception object
+g = gen()
+print(next(g))
+print(g.throw(123))
+
+# throwing an exception class just injects that class
+g = gen()
+print(next(g))
+print(g.throw(ZeroDivisionError))
+
+# this user-defined generator doesn't have a throw() method
+class Iter2:
+    def __iter__(self):
+        return self
+
+    def __next__(self):
+        return 1
+
+def gen2():
+    yield from Iter2()
+
+# the thrown ValueError is not intercepted by the user class
+g = gen2()
+print(next(g))
+try:
+    g.throw(ValueError)
+except:
+    print('ValueError')
+
+# the thrown 123 is not an exception so raises a TypeError
+g = gen2()
+print(next(g))
+try:
+    g.throw(123)
+except TypeError:
+    print('TypeError')