def _check(self, value):
if len(value) != len(self._fields):
msg = "expected {} elements, got {}".format(len(self._fields), len(value))
raise ValidationFailed(msg, value=value)
for i, (t, el) in enumerate(zip(self._fields, value)):
with context.index(i):
run_check(t.check, el)
def _check(self, value):
if value is None:
raise ValidationFailed("expected Object")
reasons = []
for name, t in self._fields.items():
subvalue = value.get(name)
try:
with context.member(name):
run_check(t.check, subvalue)
except ValidationFailed as e:
if subvalue is None:
reasons.append(ValidationFailed("missing field '{}'".format(name)))
else:
reasons.append(e)
for name in value.__dict__:
if name not in self._fields:
reasons.append(ValidationFailed("unexpected field '{}'".format(name)))
if reasons:
if len(reasons) == 1:
raise reasons[0]
raise ValidationFailed(", ".join(r.format() for r in reasons))
def _check(self, value):
for i, el in enumerate(value):
with context.index(i):
run_check(self._t.check, el)
