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

View File

@ -827,7 +827,7 @@ class Inferencer(algorithm.Visitor):
{"typeb": printer.name(typeb)},
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)
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
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):
"""