fn add_benchmark()

in arrow/benches/cast_kernels.rs [124:240]
111 lines of code
29 McCabe index (conditional complexity)

fn add_benchmark(c: &mut Criterion) {
    let i32_array = build_array::<Int32Type>(512);
    let i64_array = build_array::<Int64Type>(512);
    let f32_array = build_array::<Float32Type>(512);
    let f32_utf8_array = cast(&build_array::<Float32Type>(512), &DataType::Utf8).unwrap();

    let f64_array = build_array::<Float64Type>(512);
    let date64_array = build_array::<Date64Type>(512);
    let date32_array = build_array::<Date32Type>(512);
    let time32s_array = build_array::<Time32SecondType>(512);
    let time64ns_array = build_array::<Time64NanosecondType>(512);
    let time_ns_array = build_array::<TimestampNanosecondType>(512);
    let time_ms_array = build_array::<TimestampMillisecondType>(512);
    let utf8_date_array = build_utf8_date_array(512, true);
    let utf8_date_time_array = build_utf8_date_time_array(512, true);

    let decimal128_array = build_decimal128_array(512, 10, 3);
    let decimal256_array = build_decimal256_array(512, 50, 3);

    c.bench_function("cast int32 to int32 512", |b| {
        b.iter(|| cast_array(&i32_array, DataType::Int32))
    });
    c.bench_function("cast int32 to uint32 512", |b| {
        b.iter(|| cast_array(&i32_array, DataType::UInt32))
    });
    c.bench_function("cast int32 to float32 512", |b| {
        b.iter(|| cast_array(&i32_array, DataType::Float32))
    });
    c.bench_function("cast int32 to float64 512", |b| {
        b.iter(|| cast_array(&i32_array, DataType::Float64))
    });
    c.bench_function("cast int32 to int64 512", |b| {
        b.iter(|| cast_array(&i32_array, DataType::Int64))
    });
    c.bench_function("cast float32 to int32 512", |b| {
        b.iter(|| cast_array(&f32_array, DataType::Int32))
    });
    c.bench_function("cast float64 to float32 512", |b| {
        b.iter(|| cast_array(&f64_array, DataType::Float32))
    });
    c.bench_function("cast float64 to uint64 512", |b| {
        b.iter(|| cast_array(&f64_array, DataType::UInt64))
    });
    c.bench_function("cast int64 to int32 512", |b| {
        b.iter(|| cast_array(&i64_array, DataType::Int32))
    });
    c.bench_function("cast date64 to date32 512", |b| {
        b.iter(|| cast_array(&date64_array, DataType::Date32))
    });
    c.bench_function("cast date32 to date64 512", |b| {
        b.iter(|| cast_array(&date32_array, DataType::Date64))
    });
    c.bench_function("cast time32s to time32ms 512", |b| {
        b.iter(|| cast_array(&time32s_array, DataType::Time32(TimeUnit::Millisecond)))
    });
    c.bench_function("cast time32s to time64us 512", |b| {
        b.iter(|| cast_array(&time32s_array, DataType::Time64(TimeUnit::Microsecond)))
    });
    c.bench_function("cast time64ns to time32s 512", |b| {
        b.iter(|| cast_array(&time64ns_array, DataType::Time32(TimeUnit::Second)))
    });
    c.bench_function("cast timestamp_ns to timestamp_s 512", |b| {
        b.iter(|| {
            cast_array(
                &time_ns_array,
                DataType::Timestamp(TimeUnit::Nanosecond, None),
            )
        })
    });
    c.bench_function("cast timestamp_ms to timestamp_ns 512", |b| {
        b.iter(|| {
            cast_array(
                &time_ms_array,
                DataType::Timestamp(TimeUnit::Nanosecond, None),
            )
        })
    });
    c.bench_function("cast utf8 to f32", |b| {
        b.iter(|| cast_array(&f32_utf8_array, DataType::Float32))
    });
    c.bench_function("cast i64 to string 512", |b| {
        b.iter(|| cast_array(&i64_array, DataType::Utf8))
    });
    c.bench_function("cast f32 to string 512", |b| {
        b.iter(|| cast_array(&f32_array, DataType::Utf8))
    });

    c.bench_function("cast timestamp_ms to i64 512", |b| {
        b.iter(|| cast_array(&time_ms_array, DataType::Int64))
    });
    c.bench_function("cast utf8 to date32 512", |b| {
        b.iter(|| cast_array(&utf8_date_array, DataType::Date32))
    });
    c.bench_function("cast utf8 to date64 512", |b| {
        b.iter(|| cast_array(&utf8_date_time_array, DataType::Date64))
    });

    c.bench_function("cast decimal128 to decimal128 512", |b| {
        b.iter(|| cast_array(&decimal128_array, DataType::Decimal128(30, 5)))
    });
    c.bench_function("cast decimal128 to decimal256 512", |b| {
        b.iter(|| cast_array(&decimal128_array, DataType::Decimal256(50, 5)))
    });
    c.bench_function("cast decimal256 to decimal128 512", |b| {
        b.iter(|| cast_array(&decimal256_array, DataType::Decimal128(38, 2)))
    });
    c.bench_function("cast decimal256 to decimal256 512", |b| {
        b.iter(|| cast_array(&decimal256_array, DataType::Decimal256(50, 5)))
    });

    c.bench_function("cast decimal128 to decimal128 512 with same scale", |b| {
        b.iter(|| cast_array(&decimal128_array, DataType::Decimal128(30, 3)))
    });
    c.bench_function("cast decimal256 to decimal256 512 with same scale", |b| {
        b.iter(|| cast_array(&decimal256_array, DataType::Decimal256(60, 3)))
    });
}