feat: init benchmarks

.github/workflows/benchmark.yml

@@ -0,0 +1,32 @@
+name: codspeed-benchmarks
+
+on:
+  push:
+    branches:
+      - "main" # or "master"
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+
+jobs:
+  benchmarks:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup rust toolchain, cache and cargo-codspeed binary
+        uses: moonrepo/setup-rust@v0
+        with:
+          channel: stable
+          cache-target: release
+          bins: cargo-codspeed
+
+      - name: Build the benchmark target(s)
+        run: cargo codspeed build
+
+      - name: Run the benchmarks
+        uses: CodSpeedHQ/action@v2
+        with:
+          run: cargo codspeed run
+          token: ${{ secrets.CODSPEED_TOKEN }}

Cargo.toml

@@ -16,7 +16,9 @@ log = { version = "0.4.17" }
 serde = { version = "1.0.152", features = ["derive"] }
 miette = { version = "7.2.0", features = ["fancy"] }
 insta = { version = "1.38.0", features = ["filters", "glob"] }
+codspeed-criterion-compat = "2.6.0"
 thiserror = "1.0.48"
+criterion = "0.5.1"
 
 [profile.dev.package.insta]
 opt-level = 3

parser/Cargo.toml

@@ -21,4 +21,10 @@ thiserror = "1.0.40"
 is-macro = "0.3.5"
 
 [dev-dependencies]
+codspeed-criterion-compat = "2.6.0"
+criterion.workspace = true
 insta.workspace = true
+
+[[bench]]
+name = "parser_benchmark"
+harness = false

parser/benches/parser_benchmark.rs

@@ -0,0 +1,16 @@
+use codspeed_criterion_compat::{black_box, criterion_group, criterion_main, Criterion};
+
+fn fibonacci(n: u64) -> u64 {
+    match n {
+        0 => 1,
+        1 => 1,
+        n => fibonacci(n - 1) + fibonacci(n - 2),
+    }
+}
+
+pub fn criterion_benchmark(c: &mut Criterion) {
+    c.bench_function("fib 20", |b| b.iter(|| fibonacci(black_box(20))));
+}
+
+criterion_group!(benches, criterion_benchmark);
+criterion_main!(benches);