// Benchmarks for fusabi-vm
// Run with: cargo bench -p fusabi-vm

use criterion::{criterion_group, criterion_main, Criterion};
use std::hint::black_box;

// Placeholder benchmark - will be replaced with real benchmarks
fn placeholder_benchmark(c: &mut Criterion) {
    c.bench_function("placeholder", |b| b.iter(|| black_box(2 + 2)));
}

// TODO: Add VM execution benchmarks once VM is implemented
// fn vm_arithmetic_benchmark(c: &mut Criterion) {
//     use fusabi_vm::{VM, Chunk, OpCode};
//
//     let mut chunk = Chunk::new();
//     // Build bytecode for: 1 + 2 + 3 + ... + 100
//     for i in 1..=100 {
//         chunk.write_op(OpCode::Constant, i);
//         chunk.add_constant(i);
//         if i > 1 {
//             chunk.write_op(OpCode::Add, i);
//         }
//     }
//
//     c.bench_function("vm_arithmetic_100_adds", |b| {
//         b.iter(|| {
//             let mut vm = VM::new();
//             vm.run(&chunk).unwrap();
//         })
//     });
// }

// TODO: Add function call benchmarks
// fn vm_function_calls_benchmark(c: &mut Criterion) {
//     use fusabi_vm::{VM, Chunk, OpCode};
//
//     c.bench_function("vm_function_calls", |b| {
//         b.iter(|| {
//             // Benchmark recursive fibonacci or similar
//         })
//     });
// }

// TODO: Add memory allocation benchmarks
// fn vm_allocation_benchmark(c: &mut Criterion) {
//     use fusabi_vm::{VM, GC};
//
//     c.bench_function("vm_gc_allocation", |b| {
//         b.iter(|| {
//             let mut gc = GC::new();
//             for _ in 0..1000 {
//                 gc.allocate(vec![1, 2, 3, 4, 5]);
//             }
//         })
//     });
// }

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