micropython: add micropython component

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

@@ -0,0 +1,68 @@
+# Test various loop types, some may be implemented/optimized differently
+while True:
+    try:
+        break
+    finally:
+        print('finally 1')
+
+
+for i in [1, 5, 10]:
+    try:
+        continue
+    finally:
+        print('finally 2')
+
+for i in range(3):
+    try:
+        continue
+    finally:
+        print('finally 3')
+
+# Multi-level
+for i in range(4):
+    print(i)
+    try:
+        while True:
+            try:
+                try:
+                    break
+                finally:
+                    print('finally 1')
+            finally:
+                print('finally 2')
+        print('here')
+    finally:
+        print('finnaly 3')
+
+# break from within try-finally, within for-loop
+for i in [1]:
+    try:
+        print(i)
+        break
+    finally:
+        print('finally 4')
+
+# Test unwind-jump where there is nothing in the body of the try or finally.
+# This checks that the bytecode emitter allocates enough stack for the unwind.
+for i in [1]:
+    try:
+        break
+    finally:
+        pass
+
+# The following test checks that the globals dict is valid after a call to a
+# function that has an unwind jump.
+# There was a bug where an unwind jump would trash the globals dict upon return
+# from a function, because it used the Python-stack incorrectly.
+def f():
+    for i in [1]:
+        try:
+            break
+        finally:
+            pass
+def g():
+    global global_var
+    f()
+    print(global_var)
+global_var = 'global'
+g()