diff options
Diffstat (limited to 'src/test/ui/lint/unused_parens_json_suggestion.rs')
-rw-r--r-- | src/test/ui/lint/unused_parens_json_suggestion.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused_parens_json_suggestion.rs b/src/test/ui/lint/unused_parens_json_suggestion.rs new file mode 100644 index 000000000..962c8bdd7 --- /dev/null +++ b/src/test/ui/lint/unused_parens_json_suggestion.rs @@ -0,0 +1,26 @@ +// compile-flags: --error-format json +// run-rustfix + +// The output for humans should just highlight the whole span without showing +// the suggested replacement, but we also want to test that suggested +// replacement only removes one set of parentheses, rather than naïvely +// stripping away any starting or ending parenthesis characters—hence this +// test of the JSON error format. + +#![deny(unused_parens)] +#![allow(unreachable_code)] + +fn main() { + // We want to suggest the properly-balanced expression `1 / (2 + 3)`, not + // the malformed `1 / (2 + 3` + let _a = (1 / (2 + 3)); //~ERROR unnecessary parentheses + f(); +} + +fn f() -> bool { + loop { + if (break { return true }) { + } + } + false +} |