// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you 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_use]
extern crate criterion;
use criterion::Criterion;

extern crate arrow;

use arrow::array::*;
use arrow::buffer::Buffer;
use arrow::datatypes::*;

fn array_from_vec(n: usize) {
    let mut v: Vec<u8> = Vec::with_capacity(n);
    for i in 0..n {
        v.push((i & 0xffff) as u8);
    }
    let arr_data = ArrayDataBuilder::new(DataType::Int32)
        .add_buffer(Buffer::from(v))
        .build();
    criterion::black_box(Int32Array::from(arr_data));
}

fn criterion_benchmark(c: &mut Criterion) {
    c.bench_function("array_from_vec 128", |b| b.iter(|| array_from_vec(128)));
    c.bench_function("array_from_vec 256", |b| b.iter(|| array_from_vec(256)));
    c.bench_function("array_from_vec 512", |b| b.iter(|| array_from_vec(512)));
}

criterion_group!(benches, criterion_benchmark);
criterion_main!(benches);