roc/crates/compiler/test_syntax/fuzz/fuzz_targets/fuzz_module.rs
Joshua Warner ed62bcc15a
Fix a bunch of parser/formatter bugs found in fuzzing
Notably:
* Unified how parens are formatted between (1) when we have a ParensAround, and (2) when we've decided an Apply needs to have parens
* Made unary minus require the be indented to the same level as any other expression continuation. (it used to accidentally have rules meant for binary operators applied)
* Don't apply extra indent to the backpassing continuation in the case that the call does itself require indentation
* Make `try@foo` correctly parse as `try @foo`, so that formatting doesn't change the tree when it adds that space
* Detect more cases where we need to outdent trailing e.g. {} blocks in applies
* Approximately a bagillion other things, 90% of which I added tests for, and none of which affected the formatting of examples or builtins
2024-11-29 16:25:59 -08:00

14 lines
369 B
Rust

#![no_main]
use bumpalo::Bump;
use libfuzzer_sys::fuzz_target;
use test_syntax::test_helpers::Input;
fuzz_target!(|data: &[u8]| {
if let Ok(input) = std::str::from_utf8(data) {
let input = Input::Full(input);
let arena = Bump::new();
if input.parse_in(&arena).is_ok() {
input.check_invariants(|_| (), true);
}
}
});