# -*- coding: utf-8 -*-
"""represents simple sequence-based variants
"""
from __future__ import absolute_import, division, print_function, unicode_literals
import attr
import re
import hgvs.variantmapper
from hgvs.enums import ValidationLevel
from hgvs.utils.validation import validate_type_ac_pair
[docs]@attr.s(slots=True, repr=False)
class SequenceVariant(object):
"""
represents a basic HGVS variant. The only requirement is that each
component can be stringified; for example, passing pos as either a string
or an hgvs.location.CDSInterval (for example) are both intended uses
"""
ac = attr.ib()
type = attr.ib()
posedit = attr.ib()
gene = attr.ib(default=None)
__str__ = format
def __repr__(self):
return "{0}({1})".format(
self.__class__.__name__, ", ".join(
(a.name + "=" + str(getattr(self, a.name))) for a in self.__attrs_attrs__))
[docs] def fill_ref(self, hdp):
# TODO: Refactor. SVs should not operate on themselves when
# external resources are required
hm = hgvs.variantmapper.VariantMapper(hdp)
type = None
if isinstance(self.posedit, hgvs.posedit.PosEdit) and isinstance(
self.posedit.edit, hgvs.edit.Edit):
type = self.posedit.edit.type
if type in ["del", "delins", "identity", "dup", "repeat"
] and self.posedit.edit.ref_s is None:
hm._replace_reference(self)
if type == "identity" and isinstance(self.posedit.edit, hgvs.edit.NARefAlt):
self.posedit.edit.alt = self.posedit.edit.ref
return self
[docs] def validate(self):
(res, msg) = (ValidationLevel.VALID, None)
if self.ac and self.type:
(res, msg) = validate_type_ac_pair(self.type, self.ac)
if res == ValidationLevel.ERROR:
return (res, msg)
if self.posedit is None:
return (res, msg)
(pe_res, pe_msg) = self.posedit.validate()
if pe_res == ValidationLevel.VALID:
return (res, msg)
return (pe_res, pe_msg)
# <LICENSE>
# Copyright 2018 HGVS Contributors (https://github.com/biocommons/hgvs)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# </LICENSE>