rocketmq-model 1.0.0

// Copyright 2026 The RocketMQ Rust Authors
//
// 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.

#[macro_export]
macro_rules! hashset {

    () => {
        {
            ::std::collections::HashSet::new()
        }
    };

    ($elem:expr $(, $tail:expr)*) => {
        {
            let mut set = ::std::collections::HashSet::new();
            set.insert($elem);
            $(
                set.insert($tail);
            )*
            set
        }
    };
}