Optimize a lot and deprecate to_u8 methods (#7)

.github/workflows/ci.yml

@@ -39,6 +39,9 @@ jobs:
           - ubuntu-latest
           - windows-latest
           - macos-latest
+        features:
+          - []
+          - [tracing]
     steps:
       - uses: actions/checkout@v4
       - name: Setup Rust
@@ -52,6 +55,10 @@ jobs:
             target
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.rust-toolchain }}
       - name: Run
+        if: matrix.features[0] != null
+        run: cargo test -p svg-path-cst --features ${{ join(matrix.features, ',') }}
+      - name: Run
+        if: matrix.features[0] == null
         run: cargo test -p svg-path-cst
 
   test-release-crate:

.gitignore

@@ -1,3 +1,6 @@
 target/
 Cargo.lock
 .prettier-cache
+*.svg
+*.data
+*.data.old

.pre-commit-config.yaml

@@ -50,3 +50,7 @@ repos:
             -D,
             clippy::semicolon_if_nothing_returned,
           ]
+  - repo: https://github.com/mondeja/rust-pc-hooks
+    rev: v1.2.0
+    hooks:
+      - id: cargo-machete

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "svg-path-cst"
-version = "0.1.1"
+version = "0.1.2"
 edition = "2021"
 readme = "README.md"
 description = "CST SVG path parser."
@@ -12,12 +12,21 @@ repository = "https://github.com/mondeja/svg-path-cst"
 name = "svg_path_cst"
 path = "src/lib.rs"
 
+[[bin]]
+name = "svg-path-cst"
+path = "src/main.rs"
+
+[features]
+tracing = ["dep:tracing"]
+
 [dependencies]
-snafu = { version = "0.8.0", default_features = false }
-tracing = { version = "0.1", optional = true }
+snafu = { version = "0.8", default-features = false }
+tracing = { version = "0.1", optional = true, default-features = false, features = ["attributes"]}
 
 [dev-dependencies]
 doc-comment = "0.3.3"
+criterion = { version = "0.5", features = ["html_reports"] }
 
-[features]
-tracing = ["dep:tracing"]
+[[bench]]
+name = "performance"
+harness = false

README.md

@@ -100,6 +100,6 @@ This crate is compatible with SVG v1.1 paths, as defined in the [W3C SVG 1.1](ht
 
 ## Features
 
-- **Tracing support**: `tracing` (see [`tracing`])
+- **`tracing`**: Adds [`tracing`] support.
 
 [`tracing`]: https://docs.rs/tracing/latest/tracing

benches/performance.rs

@@ -0,0 +1,23 @@
+use criterion::{criterion_group, criterion_main, Criterion};
+use std::hint::black_box;
+use svg_path_cst::{svg_path_cst, SVGPathCSTNode, SyntaxError};
+
+fn parse(data: &[u8]) -> Result<Vec<SVGPathCSTNode>, SyntaxError> {
+    svg_path_cst(data)
+}
+
+fn performance(c: &mut Criterion) {
+    let data = b"M 10 10 L 20 20";
+    c.bench_function("basic", |b| b.iter(|| parse(black_box(data))));
+
+    let simpleicons_data = include_bytes!("../fuzz/corpus/simpleicons.txt");
+    c.bench_function("simpleicons", |b| {
+        b.iter(|| parse(black_box(simpleicons_data)))
+    });
+
+    let elsevier_data = include_bytes!("../fuzz/corpus/elsevier.txt");
+    c.bench_function("elsevier", |b| b.iter(|| parse(black_box(elsevier_data))));
+}
+
+criterion_group!(benches, performance);
+criterion_main!(benches);

fuzz/corpus/simpleicons.txt

@@ -0,0 +1 @@
+M12 0C8.688 0 6 2.688 6 6s2.688 6 6 6c4.64-.001 7.526 5.039 5.176 9.04h1.68A7.507 7.507 0 0 0 12 10.5 4.502 4.502 0 0 1 7.5 6c0-2.484 2.016-4.5 4.5-4.5s4.5 2.016 4.5 4.5H18c0-3.312-2.688-6-6-6Zm0 3a3 3 0 0 0 0 6c4 0 4-6 0-6Zm0 1.5A1.5 1.5 0 0 1 13.5 6v.002c-.002 1.336-1.617 2.003-2.561 1.058C9.995 6.115 10.664 4.5 12 4.5ZM7.5 15v1.5H9v6H4.5V24h15v-1.5H15v-6h1.5V15Zm3 1.5h3v6h-3zm-6 1.47c0 1.09.216 2.109.644 3.069h1.684A5.957 5.957 0 0 1 6 17.97Z