chore(oxc_parser): setup fuzzer

closes #155
2026-05-21 05:08:45 +00:00 · 2023-03-12 00:44:42 +08:00 · 2023-03-12 00:44:42 +08:00 · 1b93d83ff7
commit 1b93d83ff7
parent d2f42c20cd
6 changed files with 423 additions and 0 deletions
--- a/.github/workflows/fuzz.yaml
+++ b/.github/workflows/fuzz.yaml
@ -0,0 +1,27 @@
+name: Cargo Fuzz
+
+on:
+  workflow_dispatch:
+
+env:
+  CARGO_TERM_QUIET: true
+
+jobs:
+  fuzz:
+    name: Cargo Fuzz
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install cargo-fuzz
+        run: cargo install cargo-fuzz
+
+      - name: Run
+        run: |
+          cd crates/oxc_parser/fuzz
+          cargo fuzz run --release parser -- -only_ascii=1 -max_total_time=900
+
--- a/crates/oxc_parser/fuzz/.gitignore
+++ b/crates/oxc_parser/fuzz/.gitignore
@ -0,0 +1,3 @@
+target
+corpus
+artifacts
--- a/crates/oxc_parser/fuzz/Cargo.lock
+++ b/crates/oxc_parser/fuzz/Cargo.lock
@ -0,0 +1,338 @@
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+ "compact_str",
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+ "ordered-float",
+ "oxc_allocator",
+ "ryu-js",
+ "serde",
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+]
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+]
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+name = "oxc_fuzzer"
+version = "0.0.0"
+dependencies = [
+ "libfuzzer-sys",
+ "oxc_allocator",
+ "oxc_ast",
+ "oxc_parser",
+]
+
+[[package]]
+name = "oxc_parser"
+version = "0.0.0"
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+ "bitflags",
+ "num-bigint",
+ "oxc_allocator",
+ "oxc_ast",
+ "oxc_diagnostics",
+ "rustc-hash",
+ "unicode-id-start",
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--- a/crates/oxc_parser/fuzz/Cargo.toml
+++ b/crates/oxc_parser/fuzz/Cargo.toml
@ -0,0 +1,26 @@
+[package]
+name = "oxc_fuzzer"
+version = "0.0.0"
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+oxc_ast = { path = "../../oxc_ast" }
+oxc_allocator = { path = "../../oxc_allocator" }
+libfuzzer-sys = "0.4"
+
+[dependencies.oxc_parser]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "parser"
+path = "fuzz_targets/parser.rs"
+test = false
+doc = false
--- a/crates/oxc_parser/fuzz/REAME.md
+++ b/crates/oxc_parser/fuzz/REAME.md
@ -0,0 +1,14 @@
+# Fuzzer
+
+# Installation
+
+```bash
+cargo install cargo-fuzz
+```
+
+Run fuzzer for the parser, for 15mins.
+
+```bash
+cd crates/oxc_parser/fuzz
+cargo fuzz run parser -- -only_ascii=1 -max_total_time=900
+```
--- a/crates/oxc_parser/fuzz/fuzz_targets/parser.rs
+++ b/crates/oxc_parser/fuzz/fuzz_targets/parser.rs
@ -0,0 +1,15 @@
+#![no_main]
+
+use oxc_allocator::Allocator;
+use oxc_ast::SourceType;
+use oxc_parser::Parser;
+
+libfuzzer_sys::fuzz_target!(|data: &[u8]| {
+    if let Ok(s) = std::str::from_utf8(data) {
+        if s.chars().all(|s| !s.is_control()) {
+            let allocator = Allocator::default();
+            let source_type = *SourceType::default().with_typescript(true).with_jsx(true);
+            let _ = Parser::new(&allocator, &s, source_type).parse();
+        }
+    }
+});