From 3a11191fbf5248ff34a4b02f58091de7aa0b7a93 Mon Sep 17 00:00:00 2001
From: 5225225 <5225225@mailbox.org>
Date: Tue, 21 Sep 2021 23:10:42 +0100
Subject: [PATCH] Add fuzzer

---
 kalk/fuzz/.gitignore            |  4 ++++
 kalk/fuzz/Cargo.toml            | 26 ++++++++++++++++++++++++++
 kalk/fuzz/fuzz_targets/parse.rs | 10 ++++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 kalk/fuzz/.gitignore
 create mode 100644 kalk/fuzz/Cargo.toml
 create mode 100644 kalk/fuzz/fuzz_targets/parse.rs

diff --git a/kalk/fuzz/.gitignore b/kalk/fuzz/.gitignore
new file mode 100644
index 0000000..572e03b
--- /dev/null
+++ b/kalk/fuzz/.gitignore
@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts
diff --git a/kalk/fuzz/Cargo.toml b/kalk/fuzz/Cargo.toml
new file mode 100644
index 0000000..184a262
--- /dev/null
+++ b/kalk/fuzz/Cargo.toml
@@ -0,0 +1,26 @@
+
+[package]
+name = "kalk-fuzz"
+version = "0.0.0"
+authors = ["Automatically generated"]
+publish = false
+edition = "2018"
+
+[package.metadata]
+cargo-fuzz = true
+
+[dependencies]
+libfuzzer-sys = "0.4"
+
+[dependencies.kalk]
+path = ".."
+
+# Prevent this from interfering with workspaces
+[workspace]
+members = ["."]
+
+[[bin]]
+name = "parse"
+path = "fuzz_targets/parse.rs"
+test = false
+doc = false
diff --git a/kalk/fuzz/fuzz_targets/parse.rs b/kalk/fuzz/fuzz_targets/parse.rs
new file mode 100644
index 0000000..b829bff
--- /dev/null
+++ b/kalk/fuzz/fuzz_targets/parse.rs
@@ -0,0 +1,10 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+
+fuzz_target!(|data: &str| {
+    let mut ctx = kalk::parser::Context::new().set_timeout(Some(5));
+
+    // We don't care if it parses or not, we only care about if it panicked
+    // while parsing
+    let _ = kalk::parser::parse(&mut ctx, data);
+});