diff options
Diffstat (limited to 'src/test/ui/lint/unused/issue-54538-unused-parens-lint.rs')
-rw-r--r-- | src/test/ui/lint/unused/issue-54538-unused-parens-lint.rs | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.rs b/src/test/ui/lint/unused/issue-54538-unused-parens-lint.rs deleted file mode 100644 index 1e78ec5f7..000000000 --- a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.rs +++ /dev/null @@ -1,106 +0,0 @@ -// run-rustfix - -#![feature(box_patterns, stmt_expr_attributes)] - -#![allow( - dead_code, - ellipsis_inclusive_range_patterns, - irrefutable_let_patterns, - unreachable_patterns, - unused_mut, - unused_variables -)] -#![deny(unused_parens)] - -fn lint_on_top_level() { - let (a) = 0; //~ ERROR unnecessary parentheses around pattern - for (a) in 0..1 {} //~ ERROR unnecessary parentheses around pattern - if let (a) = 0 {} //~ ERROR unnecessary parentheses around pattern - while let (a) = 0 {} //~ ERROR unnecessary parentheses around pattern - fn foo((a): u8) {} //~ ERROR unnecessary parentheses around pattern - let _ = |(a): u8| 0; //~ ERROR unnecessary parentheses around pattern -} - -fn _no_lint_attr() { - let _x = #[allow(dead_code)] (1 + 2); -} - -// Don't lint in these cases (#64106). -fn or_patterns_no_lint() { - match Box::new(0) { - box (0 | 1) => {} // Should not lint as `box 0 | 1` binds as `(box 0) | 1`. - _ => {} - } - - match 0 { - x @ (0 | 1) => {} // Should not lint as `x @ 0 | 1` binds as `(x @ 0) | 1`. - _ => {} - } - - if let &(0 | 1) = &0 {} // Should also not lint. - if let &mut (0 | 1) = &mut 0 {} // Same. - - fn foo((Ok(a) | Err(a)): Result<u8, u8>) {} // Doesn't parse if we remove parens for now. - - let _ = |(Ok(a) | Err(a)): Result<u8, u8>| 1; // `|Ok(a) | Err(a)| 1` parses as bit-or. -} - -fn or_patterns_will_lint() { - if let (0 | 1) = 0 {} //~ ERROR unnecessary parentheses around pattern - if let ((0 | 1),) = (0,) {} //~ ERROR unnecessary parentheses around pattern - if let [(0 | 1)] = [0] {} //~ ERROR unnecessary parentheses around pattern - if let 0 | (1 | 2) = 0 {} //~ ERROR unnecessary parentheses around pattern - struct TS(u8); - if let TS((0 | 1)) = TS(0) {} //~ ERROR unnecessary parentheses around pattern - struct NS { f: u8 } - if let NS { f: (0 | 1) } = (NS { f: 0 }) {} //~ ERROR unnecessary parentheses around pattern -} - -// Don't lint on `&(mut x)` because `&mut x` means something else (#55342). -fn deref_mut_binding_no_lint() { - let &(mut x) = &0; -} - -fn main() { - match 1 { - (_) => {} //~ ERROR unnecessary parentheses around pattern - (y) => {} //~ ERROR unnecessary parentheses around pattern - (ref r) => {} //~ ERROR unnecessary parentheses around pattern - (e @ 1...2) => {} //~ ERROR unnecessary parentheses around pattern - (1...2) => {} // Non ambiguous range pattern should not warn - e @ (3...4) => {} // Non ambiguous range pattern should not warn - } - - match &1 { - (e @ &(1...2)) => {} //~ ERROR unnecessary parentheses around pattern - &(_) => {} //~ ERROR unnecessary parentheses around pattern - e @ &(1...2) => {} // Ambiguous range pattern should not warn - &(1...2) => {} // Ambiguous range pattern should not warn - } - - match &1 { - e @ &(1...2) | e @ &(3...4) => {} // Complex ambiguous pattern should not warn - &_ => {} - } - - match 1 { - (_) => {} //~ ERROR unnecessary parentheses around pattern - (y) => {} //~ ERROR unnecessary parentheses around pattern - (ref r) => {} //~ ERROR unnecessary parentheses around pattern - (e @ 1..=2) => {} //~ ERROR unnecessary parentheses around pattern - (1..=2) => {} // Non ambiguous range pattern should not warn - e @ (3..=4) => {} // Non ambiguous range pattern should not warn - } - - match &1 { - (e @ &(1..=2)) => {} //~ ERROR unnecessary parentheses around pattern - &(_) => {} //~ ERROR unnecessary parentheses around pattern - e @ &(1..=2) => {} // Ambiguous range pattern should not warn - &(1..=2) => {} // Ambiguous range pattern should not warn - } - - match &1 { - e @ &(1..=2) | e @ &(3..=4) => {} // Complex ambiguous pattern should not warn - &_ => {} - } -} |