micropython: add micropython component

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

@@ -0,0 +1,66 @@
+# to test keyword-only arguments
+
+# simplest case
+def f(*, a):
+    print(a)
+
+f(a=1)
+
+# with 2 keyword-only args
+def f(*, a, b):
+    print(a, b)
+
+f(a=1, b=2)
+f(b=1, a=2)
+
+# positional followed by bare star
+def f(a, *, b, c):
+    print(a, b, c)
+
+f(1, b=3, c=4)
+f(1, c=3, b=4)
+f(1, **{'b':'3', 'c':4})
+
+try:
+    f(1)
+except TypeError:
+    print("TypeError")
+
+try:
+    f(1, b=2)
+except TypeError:
+    print("TypeError")
+
+try:
+    f(1, c=2)
+except TypeError:
+    print("TypeError")
+
+# with **kw
+def f(a, *, b, **kw):
+    print(a, b, kw)
+
+f(1, b=2)
+f(1, b=2, c=3)
+
+# with named star
+def f(*a, b, c):
+    print(a, b, c)
+
+f(b=1, c=2)
+f(c=1, b=2)
+
+# with positional and named star
+def f(a, *b, c):
+    print(a, b, c)
+
+f(1, c=2)
+f(1, 2, c=3)
+f(a=1, c=3)
+
+# lambda as kw-only arg (exposes nested behaviour in compiler)
+def f(*, x=lambda:1):
+    return x()
+print(f())
+print(f(x=f))
+print(f(x=lambda:2))