circuitpython/tests/micropython/native_closure.py
David Lechner 3dc324d3f1 tests: Format all Python code with black, except tests in basics subdir.
This adds the Python files in the tests/ directory to be formatted with
./tools/codeformat.py.  The basics/ subdirectory is excluded for now so we
aren't changing too much at once.

In a few places `# fmt: off`/`# fmt: on` was used where the code had
special formatting for readability or where the test was actually testing
the specific formatting.
2020-03-30 13:21:58 +11:00

44 lines
558 B
Python

# test native emitter can handle closures correctly
# basic closure
@micropython.native
def f():
x = 1
@micropython.native
def g():
nonlocal x
return x
return g
print(f()())
# closing over an argument
@micropython.native
def f(x):
@micropython.native
def g():
nonlocal x
return x
return g
print(f(2)())
# closing over an argument and a normal local
@micropython.native
def f(x):
y = 2 * x
@micropython.native
def g(z):
return x + y + z
return g
print(f(2)(3))