"""Unwrap parentheses from an expression node."""
if isinstance(e, ParenExpr):
return self.unwrap(((ParenExpr)e).expr)
else:
return e
Node[] unwrap_list(self, Node[] a):
"""Unwrap parentheses from an expression node."""
Node[] r = []
for n in a:
r.append(self.unwrap(n))
return r
Typ erase(self, Typ type):
"""Replace type variable types in type with any."""
return erasetype.erase_type(type, self.chk.basic_types())
bool is_valid_argc(int nargs, bool is_var_arg, Callable callable):
"""Return a boolean indicating whether a call expression has a
(potentially) compatible number of arguments for calling a function.
Varargs at caller are not checked.
"""
if is_var_arg:
if callable.is_var_arg:
return True
else:
return nargs - 1 <= callable.max_fixed_args()
elif callable.is_var_arg:
return nargs >= callable.min_args
else:
def assert_erase(self, orig, result):
assert_equal(str(erase_type(orig, self.fx.basic)), str(result))
def erase(self, type):
"""Replace type variable types in type with any."""
return erasetype.erase_type(type, self.chk.basic_types())