arrow-cast/benches/parse_decimal.rs

// 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.

use arrow_array::types::Decimal256Type;
use arrow_cast::parse::parse_decimal;
use criterion::*;

fn criterion_benchmark(c: &mut Criterion) {
    let decimals = [
        "123.123",
        "123.1234",
        "123.1",
        "123",
        "-123.123",
        "-123.1234",
        "-123.1",
        "-123",
        "0.0000123",
        "12.",
        "-12.",
        "00.1",
        "-00.1",
        "12345678912345678.1234",
        "-12345678912345678.1234",
        "99999999999999999.999",
        "-99999999999999999.999",
        ".123",
        "-.123",
        "123.",
        "-123.",
    ];

    for decimal in decimals {
        let d = black_box(decimal);
        c.bench_function(d, |b| {
            b.iter(|| parse_decimal::<Decimal256Type>(d, 20, 3).unwrap());
        });
    }
}

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