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Add builtins.is_exception.

This commit is contained in:
whitequark 2015-07-17 16:05:02 +03:00
parent 3b661b2b65
commit f28549a11a
3 changed files with 7 additions and 7 deletions

View File

@ -71,11 +71,11 @@ class TException(types.TMono):
def __init__(self, name="Exception"): def __init__(self, name="Exception"):
super().__init__(name) super().__init__(name)
class TIndexError(types.TMono): class TIndexError(TException):
def __init__(self): def __init__(self):
super().__init__("IndexError") super().__init__("IndexError")
class TValueError(types.TMono): class TValueError(TException):
def __init__(self): def __init__(self):
super().__init__("ValueError") super().__init__("ValueError")
@ -150,6 +150,9 @@ def is_range(typ, elt=None):
else: else:
return types.is_mono(typ, "range") return types.is_mono(typ, "range")
def is_exception(typ):
return isinstance(typ.find(), TException)
def is_iterable(typ): def is_iterable(typ):
typ = typ.find() typ = typ.find()
return isinstance(typ, types.TMono) and \ return isinstance(typ, types.TMono) and \
@ -157,7 +160,7 @@ def is_iterable(typ):
def get_iterable_elt(typ): def get_iterable_elt(typ):
if is_iterable(typ): if is_iterable(typ):
return typ.find()["elt"] return typ.find()["elt"].find()
def is_collection(typ): def is_collection(typ):
typ = typ.find() typ = typ.find()

View File

@ -827,7 +827,7 @@ class Inferencer(algorithm.Visitor):
{"typeb": printer.name(typeb)}, {"typeb": printer.name(typeb)},
locb) locb)
] ]
self._unify(node.name_type, node.filter.type.to_exception_type(), self._unify(node.name_type, builtins.TException(node.filter.type.name),
node.name_loc, node.filter.loc, makenotes) node.name_loc, node.filter.loc, makenotes)
def _type_from_arguments(self, node, ret): def _type_from_arguments(self, node, ret):

View File

@ -268,9 +268,6 @@ class TExceptionConstructor(TBuiltin):
Note that this is not the same as the type of an instance of Note that this is not the same as the type of an instance of
the class, which is ``TMono("Exception", ...)``. the class, which is ``TMono("Exception", ...)``.
""" """
def to_exception_type(self):
# Exceptions currently can't have type parameters
return TMono(self.name, {})
class TValue(Type): class TValue(Type):
""" """