puroro 0.14.0

A Rust implementation of Google Protocol Buffer.
Documentation 
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// Copyright 2021 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.

use ::std::ops::Index;

pub trait RepeatedFieldView<'a>:
    Index<usize, Output = <Self as RepeatedFieldView<'a>>::Item>
    + IntoIterator<Item = &'a <Self as RepeatedFieldView<'a>>::Item>
{
    type Item: 'a + ?Sized;

    fn is_empty(&self) -> bool {
        self.len() == 0
    }
    fn len(&self) -> usize;
}