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# test syntax and type errors specific to viper code generation
def test(code):
try:
exec(code)
except (SyntaxError, ViperTypeError, NotImplementedError) as e:
print(repr(e))
# viper: annotations must be identifiers
test("@micropython.viper\ndef f(a:1): pass")
test("@micropython.viper\ndef f() -> 1: pass")
# unknown type
test("@micropython.viper\ndef f(x:unknown_type): pass")
# local used before type known
test(
"""
@micropython.viper
def f():
print(x)
x = 1
"""
)
# type mismatch storing to local
test(
"""
@micropython.viper
def f():
x = 1
y = []
x = y
"""
)
# can't implicitly convert type to bool
test(
"""
@micropython.viper
def f():
x = ptr(0)
if x:
pass
"""
)
# incorrect return type
test("@micropython.viper\ndef f() -> int: return []")
# can't do unary op of incompatible type
test("@micropython.viper\ndef f(x:ptr): -x")
# can't do binary op between incompatible types
test("@micropython.viper\ndef f(): 1 + []")
test("@micropython.viper\ndef f(x:int, y:uint): x < y")
# can't load
test("@micropython.viper\ndef f(): 1[0]")
test("@micropython.viper\ndef f(): 1[x]")
# can't store
test("@micropython.viper\ndef f(): 1[0] = 1")
test("@micropython.viper\ndef f(): 1[x] = 1")
test("@micropython.viper\ndef f(x:int): x[0] = x")
test("@micropython.viper\ndef f(x:ptr32): x[0] = None")
test("@micropython.viper\ndef f(x:ptr32): x[x] = None")
# must raise an object
test("@micropython.viper\ndef f(): raise 1")
# unary ops not implemented
test("@micropython.viper\ndef f(x:int): not x")
# binary op not implemented
test("@micropython.viper\ndef f(x:uint, y:uint): res = x // y")
test("@micropython.viper\ndef f(x:uint, y:uint): res = x % y")
test("@micropython.viper\ndef f(x:int): res = x in x")
# yield (from) not implemented
test("@micropython.viper\ndef f(): yield")
test("@micropython.viper\ndef f(): yield from f")
# passing a ptr to a Python function not implemented
test("@micropython.viper\ndef f(): print(ptr(1))")
# cast of a casting identifier not implemented
test("@micropython.viper\ndef f(): int(int)")
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