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#!/usr/bin/env python3
# Copyright 2025 Google LLC
# 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.
from typing import Any
class IndexRange():
def __init__(self, first: int, count: int) -> None:
self.first = first
self.count = count
if first < 0:
raise Exception("invalid arg: first {} must be non-negative".format(first))
if count < 0:
raise Exception("invalid arg: count {} must be non-negative".format(count))
def __eq__(self, other: Any) -> bool:
return isinstance(other, IndexRange) and self.first == other.first and self.count == other.count
def __hash__(self) -> int:
return hash("{} {}".format(self.first, self.count))
def __str__(self) -> str:
return "IR({}, {})".format(self.first, self.count)
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