def test_callable_type_with_default_args(self):
c = Callable([self.x, self.y], [ARG_POS, ARG_OPT], [None, None],
Any(), False)
assert_equal(str(c), 'def (X?, Y?=) -> any')
c2 = Callable([self.x, self.y], [ARG_OPT, ARG_OPT], [None, None],
Any(), False)
assert_equal(str(c2), 'def (X?=, Y?=) -> any')
def test_callable_type(self):
c = Callable([self.x, self.y],
[ARG_POS, ARG_POS],
[None, None],
Any(), False)
assert_equal(str(c), 'def (X?, Y?) -> any')
c2 = Callable([], [], [], Void(None), False)
assert_equal(str(c2), 'def ()')
def assert_expand(self, orig, map_items, result):
lower_bounds = {}
for id, t in map_items:
lower_bounds[id] = t
exp = expand_type(orig, lower_bounds)
# Remove erased tags (asterisks).
assert_equal(str(exp).replace('*', ''), str(result))
def assert_vararg_map(self, caller_kinds, callee_kinds, expected,
vararg_type):
result = map_actuals_to_formals(
caller_kinds,
[],
callee_kinds,
[],
lambda i: vararg_type)
assert_equal(result, expected)
def assert_solve(self, vars, constraints, results):
res = []
for r in results:
if isinstance(r, tuple):
res.append(r[0])
else:
res.append(r)
actual = solve_constraints(vars, constraints, self.fx.basic)
assert_equal(str(actual), str(res))
def assert_map(self, caller_kinds, callee_kinds, expected):
caller_kinds, caller_names = expand_caller_kinds(caller_kinds)
callee_kinds, callee_names = expand_callee_kinds(callee_kinds)
result = map_actuals_to_formals(
caller_kinds,
caller_names,
callee_kinds,
callee_names,
lambda i: Any())
assert_equal(result, expected)
def test_generic_function_type(self):
c = Callable([self.x, self.y], [ARG_POS, ARG_POS], [None, None],
self.y, False, None,
TypeVars([TypeVarDef('X', -1)]))
assert_equal(str(c), 'def <X> (X?, Y?) -> Y?')
v = TypeVars([TypeVarDef('Y', -1, UnboundType('X')),
TypeVarDef('X', -2)])
c2 = Callable([], [], [], Void(None), False, None, v)
assert_equal(str(c2), 'def <Y is X?, X> ()')
def assert_simple_join(self, s, t, join):
result = join_types(s, t, self.fx.basic)
actual = str(result)
expected = str(join)
assert_equal(actual, expected,
'join({}, {}) == {{}} ({{}} expected)'.format(s, t))
if not isinstance(s, ErrorType) and not isinstance(result, ErrorType):
assert_true(is_subtype(s, result),
'{} not subtype of {}'.format(s, result))
if not isinstance(t, ErrorType) and not isinstance(result, ErrorType):
assert_true(is_subtype(t, result),
'{} not subtype of {}'.format(t, result))
def assert_simple_meet(self, s, t, meet):
result = meet_types(s, t, self.fx.basic)
actual = str(result)
expected = str(meet)
assert_equal(actual, expected,
'meet({}, {}) == {{}} ({{}} expected)'.format(s, t))
if not isinstance(s, ErrorType) and not isinstance(result, ErrorType):
assert_true(is_subtype(result, s),
'{} not subtype of {}'.format(result, s))
if not isinstance(t, ErrorType) and not isinstance(result, ErrorType):
assert_true(is_subtype(result, t),
'{} not subtype of {}'.format(result, t))
def assert_line(self, s, a):
s = s.replace('\\n', '\n')
s = s.replace('\\r', '\r')
tt = lex(s)
r = []
for t in tt:
r.append(t.line)
if len(r) == len(a) + 2:
a = a[:]
a.append(a[-1])
a.append(a[-1])
assert_equal(r, a)
def assert_lex(self, src, lexed):
src = src.replace('\\n', '\n')
src = src.replace('\\r', '\r')
if lexed.endswith(' ...'):
lexed = lexed[:-3] + 'Break() Eof()'
l = lex(src)
r = []
for t in l:
r.append(str(t))
act = ' '.join(r)
if act != lexed:
print('Actual: ', act)
print('Expected:', lexed)
assert_equal(act, lexed)
def test_callable_type_with_var_args(self):
c = Callable([self.x], [ARG_STAR], [None], Any(), False)
assert_equal(str(c), 'def (*X?) -> any')
c2 = Callable([self.x, self.y], [ARG_POS, ARG_STAR],
[None, None], Any(), False)
assert_equal(str(c2), 'def (X?, *Y?) -> any')
c3 = Callable([self.x, self.y], [ARG_OPT, ARG_STAR], [None, None],
Any(), False)
assert_equal(str(c3), 'def (X?=, *Y?) -> any')
def test_generic_unbound_type(self):
u = UnboundType('Foo', [UnboundType('T'), Any()])
assert_equal(str(u), 'Foo?<T?, any>')
def test_type_variable_binding(self):
assert_equal(str(TypeVarDef('X', 1)), 'X')
assert_equal(str(TypeVarDef('X', 1, UnboundType('Y'))), 'X is Y?')
def test_tuple_type(self):
assert_equal(str(TupleType([])), 'tuple<>')
assert_equal(str(TupleType([self.x])), 'tuple<X?>')
assert_equal(str(TupleType([self.x, Any()])), 'tuple<X?, any>')
def assert_replace(self, orig, result):
assert_equal(str(replace_type_vars(orig)), str(result))
def assert_erase(self, orig, result):
assert_equal(str(erase_type(orig, self.fx.basic)), str(result))
def test_any(self):
assert_equal(str(Any()), 'any')
def test_simple_unbound_type(self):
u = UnboundType('Foo')
assert_equal(str(u), 'Foo?')
def test_void_type(self):
assert_equal(str(Void(None)), 'void')