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Refactor errors

pull/335/head
A. R. Shajii 2023-03-23 22:39:00 -04:00
parent fbd0105958
commit e573f6daae
1 changed files with 17 additions and 14 deletions
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31
stdlib/internal/python.codon
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@ -1130,7 +1130,7 @@ class pyobj:
def __iter__(self) -> Generator[pyobj]:
it = PyObject_GetIter(self.p)
if not it:
raise ValueError("Python object is not iterable")
raise TypeError("Python object is not iterable")
try:
while i := PyIter_Next(it):
yield pyobj(pyobj.exc_wrap(i), steal=True)
@ -1467,18 +1467,20 @@ class _PyWrapError(Static[PyError]):
class _PyWrap:
def _dispatch_error(F: Static[str]):
raise TypeError("could not find callable method '" + F + "' for given arguments")
def _wrap(args, T: type, F: Static[str], map):
for fn in _S.fn_overloads(T, F):
a = _PyWrap._args_from_py(fn, args)
if a is None:
continue
if _S.fn_can_call(fn, *a):
try:
return map(fn, a)
except PyError as e:
pass
raise TypeError("cannot dispatch " + F)
_PyWrap._dispatch_error(F)
def _wrap_unary(obj: cobj, T: type, F: Static[str]) -> cobj:
return _PyWrap._wrap(
@ -1762,21 +1764,21 @@ class _PyWrap:
)
def wrap_magic_init(obj: cobj, args: cobj, kwargs: cobj, T: type) -> i32:
for fn in _S.fn_overloads(T, "__init__"):
F: Static[str] = "__init__"
for fn in _S.fn_overloads(T, F):
a = _PyWrap._reorder_args(fn, obj, args, kwargs, M=1)
if a is not None and _S.fn_can_call(fn, *a):
fn(*a)
return i32(0)
raise TypeError("could not dispatch __init__ call for given arguments")
_PyWrap._dispatch_error(F)
def wrap_magic_call(obj: cobj, args: cobj, kwargs: cobj, T: type) -> cobj:
for fn in _S.fn_overloads(T, "__call__"):
F: Static[str] = "__call__"
for fn in _S.fn_overloads(T, F):
a = _PyWrap._reorder_args(fn, obj, args, kwargs, M=1)
if a is not None and _S.fn_can_call(fn, *a):
return fn(*a).__to_py__()
raise TypeError("could not dispatch __call__ call for given arguments")
_PyWrap._dispatch_error(F)
def _wrap_cmp(obj: cobj, other: cobj, T: type, F: Static[str]) -> cobj:
return _PyWrap._wrap(
@ -1821,12 +1823,13 @@ class _PyWrap:
def wrap_magic_setitem(obj: cobj, idx: cobj, val: cobj, T: type) -> i32:
if val == cobj():
if hasattr(T, "__delitem__"):
F: Static[str] = "__delitem__"
if hasattr(T, F):
return _PyWrap._wrap(
(obj, idx), T=T, F="__delitem__",
(obj, idx), T=T, F=F,
map=lambda f, a: i32(0)
)
raise TypeError("type " + T.__name__ + " has no attribute __delitem__")
_PyWrap._dispatch_error(F)
else:
return _PyWrap._wrap(
(obj, idx, val), T=T, F="__setitem__",
@ -1882,7 +1885,7 @@ class _PyWrap:
if a is not None and _S.fn_can_call(fn, *a):
return fn(*a).__to_py__()
raise TypeError("cannot dispatch " + F)
_PyWrap._dispatch_error(F)
def wrap_get(obj: cobj, closure: cobj, T: type, S: Static[str]):
return getattr(T.__from_py__(obj), S).__to_py__()
@ -1910,5 +1913,5 @@ class _PyWrap:
obj = Ptr[PyWrapper[T]](o)[0]
pytype = _PyWrap.py_type(T)
if obj.head.pytype != pytype:
raise PyError("Python object has incompatible type")
_conversion_error(T.__name__)
return obj.data