diff options
Diffstat (limited to 'src/test/ui/lint/unused')
105 files changed, 0 insertions, 4951 deletions
diff --git a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate.rs b/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate.rs deleted file mode 100644 index b76b4321d..000000000 --- a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate.rs +++ /dev/null @@ -1 +0,0 @@ -pub fn foo() {} diff --git a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate2.rs b/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate2.rs deleted file mode 100644 index b76b4321d..000000000 --- a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate2.rs +++ /dev/null @@ -1 +0,0 @@ -pub fn foo() {} diff --git a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate3.rs b/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate3.rs deleted file mode 100644 index b76b4321d..000000000 --- a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate3.rs +++ /dev/null @@ -1 +0,0 @@ -pub fn foo() {} diff --git a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate4.rs b/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate4.rs deleted file mode 100644 index d11c69f81..000000000 --- a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate4.rs +++ /dev/null @@ -1 +0,0 @@ -// intentionally empty diff --git a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate5.rs b/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate5.rs deleted file mode 100644 index d11c69f81..000000000 --- a/src/test/ui/lint/unused/auxiliary/lint_unused_extern_crate5.rs +++ /dev/null @@ -1 +0,0 @@ -// intentionally empty diff --git a/src/test/ui/lint/unused/issue-104397.rs b/src/test/ui/lint/unused/issue-104397.rs deleted file mode 100644 index 94e15cd96..000000000 --- a/src/test/ui/lint/unused/issue-104397.rs +++ /dev/null @@ -1,18 +0,0 @@ -// check-pass - -#![warn(unused)] -#![deny(warnings)] - -struct Inv<'a>(&'a mut &'a ()); - -trait Trait {} -impl Trait for for<'a> fn(Inv<'a>) {} - -fn with_bound() -where - (for<'a> fn(Inv<'a>)): Trait, -{} - -fn main() { - with_bound(); -} diff --git a/src/test/ui/lint/unused/issue-30730.rs b/src/test/ui/lint/unused/issue-30730.rs deleted file mode 100644 index d6be90c81..000000000 --- a/src/test/ui/lint/unused/issue-30730.rs +++ /dev/null @@ -1,5 +0,0 @@ -#![warn(unused)] -#![deny(warnings)] -use std::thread; -//~^ ERROR: unused import -fn main() {} diff --git a/src/test/ui/lint/unused/issue-30730.stderr b/src/test/ui/lint/unused/issue-30730.stderr deleted file mode 100644 index b299e99a3..000000000 --- a/src/test/ui/lint/unused/issue-30730.stderr +++ /dev/null @@ -1,15 +0,0 @@ -error: unused import: `std::thread` - --> $DIR/issue-30730.rs:3:5 - | -LL | use std::thread; - | ^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/issue-30730.rs:2:9 - | -LL | #![deny(warnings)] - | ^^^^^^^^ - = note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]` - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/issue-46576.rs b/src/test/ui/lint/unused/issue-46576.rs deleted file mode 100644 index 15f458f38..000000000 --- a/src/test/ui/lint/unused/issue-46576.rs +++ /dev/null @@ -1,21 +0,0 @@ -#![allow(dead_code)] -#![deny(unused_imports)] - -use std::fs::File; -use std::io::{BufRead, BufReader, Read}; -//~^ ERROR unused import: `BufRead` - -pub fn read_from_file(path: &str) { - let file = File::open(&path).unwrap(); - let mut reader = BufReader::new(file); - let mut s = String::new(); - reader.read_to_string(&mut s).unwrap(); -} - -pub fn read_lines(s: &str) { - for _line in s.lines() { - - } -} - -fn main() {} diff --git a/src/test/ui/lint/unused/issue-46576.stderr b/src/test/ui/lint/unused/issue-46576.stderr deleted file mode 100644 index 6f4d97068..000000000 --- a/src/test/ui/lint/unused/issue-46576.stderr +++ /dev/null @@ -1,14 +0,0 @@ -error: unused import: `BufRead` - --> $DIR/issue-46576.rs:5:15 - | -LL | use std::io::{BufRead, BufReader, Read}; - | ^^^^^^^ - | -note: the lint level is defined here - --> $DIR/issue-46576.rs:2:9 - | -LL | #![deny(unused_imports)] - | ^^^^^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.rs b/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.rs deleted file mode 100644 index 4822a9b2c..000000000 --- a/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.rs +++ /dev/null @@ -1,88 +0,0 @@ -// check-pass - -#![feature(box_patterns)] - -#![warn(unused)] // UI tests pass `-A unused` (#43896) - -struct SoulHistory { - corridors_of_light: usize, - hours_are_suns: bool, - endless_and_singing: bool -} - -struct LovelyAmbition { - lips: usize, - fire: usize -} - -#[derive(Clone, Copy)] -enum Large { - Suit { case: () } -} - -struct Tuple(Large, ()); - -fn main() { - let i_think_continually = 2; //~ WARNING unused variable: `i_think_continually` - let who_from_the_womb_remembered = SoulHistory { - corridors_of_light: 5, - hours_are_suns: true, - endless_and_singing: true - }; - - let mut mut_unused_var = 1; - //~^ WARNING unused variable: `mut_unused_var` - //~| WARNING variable does not need to be mutable - - let (mut var, unused_var) = (1, 2); - //~^ WARNING unused variable: `var` - //~| WARNING unused variable: `unused_var` - //~| WARNING variable does not need to be mutable - // NOTE: `var` comes after `unused_var` lexicographically yet the warning - // for `var` will be emitted before the one for `unused_var`. We use an - // `IndexMap` to ensure this is the case instead of a `BTreeMap`. - - if let SoulHistory { corridors_of_light, //~ WARNING unused variable: `corridors_of_light` - mut hours_are_suns, //~ WARNING `hours_are_suns` is assigned to, but - endless_and_singing: true } = who_from_the_womb_remembered { - hours_are_suns = false; //~ WARNING unused_assignments - } - - let the_spirit = LovelyAmbition { lips: 1, fire: 2 }; - let LovelyAmbition { lips, fire } = the_spirit; //~ WARNING unused variable: `fire` - println!("{}", lips); - - let bag = Large::Suit { - case: () - }; - - // Plain struct - match bag { - Large::Suit { case } => {} //~ WARNING unused variable: `case` - }; - - // Referenced struct - match &bag { - &Large::Suit { case } => {} //~ WARNING unused variable: `case` - }; - - // Boxed struct - match Box::new(bag) { - box Large::Suit { case } => {} //~ WARNING unused variable: `case` - }; - - // Tuple with struct - match (bag,) { - (Large::Suit { case },) => {} //~ WARNING unused variable: `case` - }; - - // Slice with struct - match [bag] { - [Large::Suit { case }] => {} //~ WARNING unused variable: `case` - }; - - // Tuple struct with struct - match Tuple(bag, ()) { - Tuple(Large::Suit { case }, ()) => {} //~ WARNING unused variable: `case` - }; -} diff --git a/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.stderr b/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.stderr deleted file mode 100644 index fe2e3afc8..000000000 --- a/src/test/ui/lint/unused/issue-47390-unused-variable-in-struct-pattern.stderr +++ /dev/null @@ -1,116 +0,0 @@ -warning: unused variable: `i_think_continually` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:26:9 - | -LL | let i_think_continually = 2; - | ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_i_think_continually` - | -note: the lint level is defined here - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:5:9 - | -LL | #![warn(unused)] // UI tests pass `-A unused` (#43896) - | ^^^^^^ - = note: `#[warn(unused_variables)]` implied by `#[warn(unused)]` - -warning: unused variable: `mut_unused_var` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:33:13 - | -LL | let mut mut_unused_var = 1; - | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_mut_unused_var` - -warning: unused variable: `var` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:37:14 - | -LL | let (mut var, unused_var) = (1, 2); - | ^^^ help: if this is intentional, prefix it with an underscore: `_var` - -warning: unused variable: `unused_var` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:37:19 - | -LL | let (mut var, unused_var) = (1, 2); - | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unused_var` - -warning: unused variable: `corridors_of_light` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:45:26 - | -LL | if let SoulHistory { corridors_of_light, - | ^^^^^^^^^^^^^^^^^^ help: try ignoring the field: `corridors_of_light: _` - -warning: variable `hours_are_suns` is assigned to, but never used - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:46:30 - | -LL | mut hours_are_suns, - | ^^^^^^^^^^^^^^ - | - = note: consider using `_hours_are_suns` instead - -warning: value assigned to `hours_are_suns` is never read - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:48:9 - | -LL | hours_are_suns = false; - | ^^^^^^^^^^^^^^ - | - = help: maybe it is overwritten before being read? - = note: `#[warn(unused_assignments)]` implied by `#[warn(unused)]` - -warning: unused variable: `fire` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:52:32 - | -LL | let LovelyAmbition { lips, fire } = the_spirit; - | ^^^^ help: try ignoring the field: `fire: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:61:23 - | -LL | Large::Suit { case } => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:66:24 - | -LL | &Large::Suit { case } => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:71:27 - | -LL | box Large::Suit { case } => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:76:24 - | -LL | (Large::Suit { case },) => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:81:24 - | -LL | [Large::Suit { case }] => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: unused variable: `case` - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:86:29 - | -LL | Tuple(Large::Suit { case }, ()) => {} - | ^^^^ help: try ignoring the field: `case: _` - -warning: variable does not need to be mutable - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:33:9 - | -LL | let mut mut_unused_var = 1; - | ----^^^^^^^^^^^^^^ - | | - | help: remove this `mut` - | - = note: `#[warn(unused_mut)]` implied by `#[warn(unused)]` - -warning: variable does not need to be mutable - --> $DIR/issue-47390-unused-variable-in-struct-pattern.rs:37:10 - | -LL | let (mut var, unused_var) = (1, 2); - | ----^^^ - | | - | help: remove this `mut` - -warning: 16 warnings emitted - diff --git a/src/test/ui/lint/unused/issue-54180-unused-ref-field.fixed b/src/test/ui/lint/unused/issue-54180-unused-ref-field.fixed deleted file mode 100644 index 1350b7ca6..000000000 --- a/src/test/ui/lint/unused/issue-54180-unused-ref-field.fixed +++ /dev/null @@ -1,34 +0,0 @@ -// run-rustfix - -#![deny(unused)] - -pub struct S { - pub f1: i32, -} - -pub struct Point { - pub x: i32, - pub y: i32, -} - -pub enum E { - Variant { field: String } -} - -pub fn foo(arg: &E) { - match arg { - E::Variant { field: _ } => (), //~ ERROR unused variable - } -} - -fn main() { - let s = S { f1: 123 }; - let S { f1: _ } = s; //~ ERROR unused variable - - let points = vec![Point { x: 1, y: 2 }]; - let _: i32 = points.iter().map(|Point { x: _, y }| y).sum(); //~ ERROR unused variable - - match (Point { x: 1, y: 2 }) { - Point { y, x: _ } => y, //~ ERROR unused variable - }; -} diff --git a/src/test/ui/lint/unused/issue-54180-unused-ref-field.rs b/src/test/ui/lint/unused/issue-54180-unused-ref-field.rs deleted file mode 100644 index 7b3392b60..000000000 --- a/src/test/ui/lint/unused/issue-54180-unused-ref-field.rs +++ /dev/null @@ -1,34 +0,0 @@ -// run-rustfix - -#![deny(unused)] - -pub struct S { - pub f1: i32, -} - -pub struct Point { - pub x: i32, - pub y: i32, -} - -pub enum E { - Variant { field: String } -} - -pub fn foo(arg: &E) { - match arg { - E::Variant { ref field } => (), //~ ERROR unused variable - } -} - -fn main() { - let s = S { f1: 123 }; - let S { ref f1 } = s; //~ ERROR unused variable - - let points = vec![Point { x: 1, y: 2 }]; - let _: i32 = points.iter().map(|Point { x, y }| y).sum(); //~ ERROR unused variable - - match (Point { x: 1, y: 2 }) { - Point { y, ref mut x } => y, //~ ERROR unused variable - }; -} diff --git a/src/test/ui/lint/unused/issue-54180-unused-ref-field.stderr b/src/test/ui/lint/unused/issue-54180-unused-ref-field.stderr deleted file mode 100644 index f2e616899..000000000 --- a/src/test/ui/lint/unused/issue-54180-unused-ref-field.stderr +++ /dev/null @@ -1,33 +0,0 @@ -error: unused variable: `field` - --> $DIR/issue-54180-unused-ref-field.rs:20:22 - | -LL | E::Variant { ref field } => (), - | ^^^^^^^^^ help: try ignoring the field: `field: _` - | -note: the lint level is defined here - --> $DIR/issue-54180-unused-ref-field.rs:3:9 - | -LL | #![deny(unused)] - | ^^^^^^ - = note: `#[deny(unused_variables)]` implied by `#[deny(unused)]` - -error: unused variable: `f1` - --> $DIR/issue-54180-unused-ref-field.rs:26:13 - | -LL | let S { ref f1 } = s; - | ^^^^^^ help: try ignoring the field: `f1: _` - -error: unused variable: `x` - --> $DIR/issue-54180-unused-ref-field.rs:32:20 - | -LL | Point { y, ref mut x } => y, - | ^^^^^^^^^ help: try ignoring the field: `x: _` - -error: unused variable: `x` - --> $DIR/issue-54180-unused-ref-field.rs:29:45 - | -LL | let _: i32 = points.iter().map(|Point { x, y }| y).sum(); - | ^ help: try ignoring the field: `x: _` - -error: aborting due to 4 previous errors - diff --git a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.fixed b/src/test/ui/lint/unused/issue-54538-unused-parens-lint.fixed deleted file mode 100644 index 0b3fe9371..000000000 --- a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.fixed +++ /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 - &_ => {} - } -} 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 - &_ => {} - } -} diff --git a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.stderr b/src/test/ui/lint/unused/issue-54538-unused-parens-lint.stderr deleted file mode 100644 index c73884663..000000000 --- a/src/test/ui/lint/unused/issue-54538-unused-parens-lint.stderr +++ /dev/null @@ -1,295 +0,0 @@ -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:16:9 - | -LL | let (a) = 0; - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-54538-unused-parens-lint.rs:13:9 - | -LL | #![deny(unused_parens)] - | ^^^^^^^^^^^^^ -help: remove these parentheses - | -LL - let (a) = 0; -LL + let a = 0; - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:17:9 - | -LL | for (a) in 0..1 {} - | ^ ^ - | -help: remove these parentheses - | -LL - for (a) in 0..1 {} -LL + for a in 0..1 {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:18:12 - | -LL | if let (a) = 0 {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let (a) = 0 {} -LL + if let a = 0 {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:19:15 - | -LL | while let (a) = 0 {} - | ^ ^ - | -help: remove these parentheses - | -LL - while let (a) = 0 {} -LL + while let a = 0 {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:20:12 - | -LL | fn foo((a): u8) {} - | ^ ^ - | -help: remove these parentheses - | -LL - fn foo((a): u8) {} -LL + fn foo(a: u8) {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:21:14 - | -LL | let _ = |(a): u8| 0; - | ^ ^ - | -help: remove these parentheses - | -LL - let _ = |(a): u8| 0; -LL + let _ = |a: u8| 0; - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:49:12 - | -LL | if let (0 | 1) = 0 {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let (0 | 1) = 0 {} -LL + if let 0 | 1 = 0 {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:50:13 - | -LL | if let ((0 | 1),) = (0,) {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let ((0 | 1),) = (0,) {} -LL + if let (0 | 1,) = (0,) {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:51:13 - | -LL | if let [(0 | 1)] = [0] {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let [(0 | 1)] = [0] {} -LL + if let [0 | 1] = [0] {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:52:16 - | -LL | if let 0 | (1 | 2) = 0 {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let 0 | (1 | 2) = 0 {} -LL + if let 0 | 1 | 2 = 0 {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:54:15 - | -LL | if let TS((0 | 1)) = TS(0) {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let TS((0 | 1)) = TS(0) {} -LL + if let TS(0 | 1) = TS(0) {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:56:20 - | -LL | if let NS { f: (0 | 1) } = (NS { f: 0 }) {} - | ^ ^ - | -help: remove these parentheses - | -LL - if let NS { f: (0 | 1) } = (NS { f: 0 }) {} -LL + if let NS { f: 0 | 1 } = (NS { f: 0 }) {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:66:9 - | -LL | (_) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (_) => {} -LL + _ => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:67:9 - | -LL | (y) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (y) => {} -LL + y => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:68:9 - | -LL | (ref r) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (ref r) => {} -LL + ref r => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:69:9 - | -LL | (e @ 1...2) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (e @ 1...2) => {} -LL + e @ 1...2 => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:75:9 - | -LL | (e @ &(1...2)) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (e @ &(1...2)) => {} -LL + e @ &(1...2) => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:76:10 - | -LL | &(_) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - &(_) => {} -LL + &_ => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:87:9 - | -LL | (_) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (_) => {} -LL + _ => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:88:9 - | -LL | (y) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (y) => {} -LL + y => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:89:9 - | -LL | (ref r) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (ref r) => {} -LL + ref r => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:90:9 - | -LL | (e @ 1..=2) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (e @ 1..=2) => {} -LL + e @ 1..=2 => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:96:9 - | -LL | (e @ &(1..=2)) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - (e @ &(1..=2)) => {} -LL + e @ &(1..=2) => {} - | - -error: unnecessary parentheses around pattern - --> $DIR/issue-54538-unused-parens-lint.rs:97:10 - | -LL | &(_) => {} - | ^ ^ - | -help: remove these parentheses - | -LL - &(_) => {} -LL + &_ => {} - | - -error: aborting due to 24 previous errors - diff --git a/src/test/ui/lint/unused/issue-59896.rs b/src/test/ui/lint/unused/issue-59896.rs deleted file mode 100644 index ff9f19acf..000000000 --- a/src/test/ui/lint/unused/issue-59896.rs +++ /dev/null @@ -1,9 +0,0 @@ -#![deny(unused_imports)] - -struct S; - -fn main() { - use S; //~ ERROR the item `S` is imported redundantly - - let _s = S; -} diff --git a/src/test/ui/lint/unused/issue-59896.stderr b/src/test/ui/lint/unused/issue-59896.stderr deleted file mode 100644 index 95b7938ae..000000000 --- a/src/test/ui/lint/unused/issue-59896.stderr +++ /dev/null @@ -1,17 +0,0 @@ -error: the item `S` is imported redundantly - --> $DIR/issue-59896.rs:6:9 - | -LL | struct S; - | --------- the item `S` is already defined here -... -LL | use S; - | ^ - | -note: the lint level is defined here - --> $DIR/issue-59896.rs:1:9 - | -LL | #![deny(unused_imports)] - | ^^^^^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.rs b/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.rs deleted file mode 100644 index e3631d014..000000000 --- a/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.rs +++ /dev/null @@ -1,85 +0,0 @@ -// FIXME: should be run-rustfix, but rustfix doesn't currently support multipart suggestions, see -// #53934 - -#![deny(unused)] - -pub enum MyEnum { - A { i: i32, j: i32 }, - B { i: i32, j: i32 }, -} - -pub enum MixedEnum { - A { i: i32 }, - B(i32), -} - -pub fn no_ref(x: MyEnum) { - use MyEnum::*; - - match x { - A { i, j } | B { i, j } => { //~ ERROR unused variable - println!("{}", i); - } - } -} - -pub fn with_ref(x: MyEnum) { - use MyEnum::*; - - match x { - A { i, ref j } | B { i, ref j } => { //~ ERROR unused variable - println!("{}", i); - } - } -} - -pub fn inner_no_ref(x: Option<MyEnum>) { - use MyEnum::*; - - match x { - Some(A { i, j } | B { i, j }) => { //~ ERROR unused variable - println!("{}", i); - } - - _ => {} - } -} - -pub fn inner_with_ref(x: Option<MyEnum>) { - use MyEnum::*; - - match x { - Some(A { i, ref j } | B { i, ref j }) => { //~ ERROR unused variable - println!("{}", i); - } - - _ => {} - } -} - -pub fn mixed_no_ref(x: MixedEnum) { - match x { - MixedEnum::A { i } | MixedEnum::B(i) => { //~ ERROR unused variable - println!("match"); - } - } -} - -pub fn mixed_with_ref(x: MixedEnum) { - match x { - MixedEnum::A { ref i } | MixedEnum::B(ref i) => { //~ ERROR unused variable - println!("match"); - } - } -} - -pub fn main() { - no_ref(MyEnum::A { i: 1, j: 2 }); - with_ref(MyEnum::A { i: 1, j: 2 }); - - inner_no_ref(Some(MyEnum::A { i: 1, j: 2 })); - inner_with_ref(Some(MyEnum::A { i: 1, j: 2 })); - - mixed_no_ref(MixedEnum::B(5)); - mixed_with_ref(MixedEnum::B(5)); -} diff --git a/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.stderr b/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.stderr deleted file mode 100644 index 8fc2d1bc8..000000000 --- a/src/test/ui/lint/unused/issue-67691-unused-field-in-or-pattern.stderr +++ /dev/null @@ -1,74 +0,0 @@ -error: unused variable: `j` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:20:16 - | -LL | A { i, j } | B { i, j } => { - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:4:9 - | -LL | #![deny(unused)] - | ^^^^^^ - = note: `#[deny(unused_variables)]` implied by `#[deny(unused)]` -help: try ignoring the field - | -LL | A { i, j: _ } | B { i, j: _ } => { - | ~~~~ ~~~~ - -error: unused variable: `j` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:30:16 - | -LL | A { i, ref j } | B { i, ref j } => { - | ^^^^^ ^^^^^ - | -help: try ignoring the field - | -LL | A { i, j: _ } | B { i, j: _ } => { - | ~~~~ ~~~~ - -error: unused variable: `j` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:40:21 - | -LL | Some(A { i, j } | B { i, j }) => { - | ^ ^ - | -help: try ignoring the field - | -LL | Some(A { i, j: _ } | B { i, j: _ }) => { - | ~~~~ ~~~~ - -error: unused variable: `j` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:52:21 - | -LL | Some(A { i, ref j } | B { i, ref j }) => { - | ^^^^^ ^^^^^ - | -help: try ignoring the field - | -LL | Some(A { i, j: _ } | B { i, j: _ }) => { - | ~~~~ ~~~~ - -error: unused variable: `i` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:62:24 - | -LL | MixedEnum::A { i } | MixedEnum::B(i) => { - | ^ ^ - | -help: try ignoring the field - | -LL | MixedEnum::A { i: _ } | MixedEnum::B(_) => { - | ~~~~ ~ - -error: unused variable: `i` - --> $DIR/issue-67691-unused-field-in-or-pattern.rs:70:24 - | -LL | MixedEnum::A { ref i } | MixedEnum::B(ref i) => { - | ^^^^^ ^^^^^ - | -help: try ignoring the field - | -LL | MixedEnum::A { i: _ } | MixedEnum::B(_) => { - | ~~~~ ~ - -error: aborting due to 6 previous errors - diff --git a/src/test/ui/lint/unused/issue-70041.rs b/src/test/ui/lint/unused/issue-70041.rs deleted file mode 100644 index 22e42295e..000000000 --- a/src/test/ui/lint/unused/issue-70041.rs +++ /dev/null @@ -1,13 +0,0 @@ -// compile-flags: --edition=2018 -// run-pass - -macro_rules! regex { - //~^ WARN unused macro definition - () => {}; -} - -#[allow(dead_code)] -use regex; -//~^ WARN unused import - -fn main() {} diff --git a/src/test/ui/lint/unused/issue-70041.stderr b/src/test/ui/lint/unused/issue-70041.stderr deleted file mode 100644 index b2e6d1aeb..000000000 --- a/src/test/ui/lint/unused/issue-70041.stderr +++ /dev/null @@ -1,18 +0,0 @@ -warning: unused macro definition: `regex` - --> $DIR/issue-70041.rs:4:14 - | -LL | macro_rules! regex { - | ^^^^^ - | - = note: `#[warn(unused_macros)]` on by default - -warning: unused import: `regex` - --> $DIR/issue-70041.rs:10:5 - | -LL | use regex; - | ^^^^^ - | - = note: `#[warn(unused_imports)]` on by default - -warning: 2 warnings emitted - diff --git a/src/test/ui/lint/unused/issue-71290-unused-paren-binop.rs b/src/test/ui/lint/unused/issue-71290-unused-paren-binop.rs deleted file mode 100644 index 24d77e36d..000000000 --- a/src/test/ui/lint/unused/issue-71290-unused-paren-binop.rs +++ /dev/null @@ -1,23 +0,0 @@ -// check-pass -// Make sure unused parens lint doesn't emit a false positive. -// See https://github.com/rust-lang/rust/issues/71290 for details. -#![deny(unused_parens)] - -fn x() -> u8 { - ({ 0 }) + 1 -} - -fn y() -> u8 { - ({ 0 } + 1) -} - -pub fn foo(a: bool, b: bool) -> u8 { - (if a { 1 } else { 0 } + if b { 1 } else { 0 }) -} - -pub fn bar() -> u8 { - // Make sure nested expressions are handled correctly as well - ({ 0 } + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9) -} - -fn main() {} diff --git a/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs b/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs deleted file mode 100644 index 8064c3a88..000000000 --- a/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.rs +++ /dev/null @@ -1,26 +0,0 @@ -#![feature(generator_trait)] -#![feature(generators)] -#![deny(unused_braces, unused_parens)] - -use std::ops::Generator; -use std::pin::Pin; - -fn main() { - let mut x = |_| { - while let Some(_) = (yield) {} - while let Some(_) = {yield} {} - - // Only warn these cases - while let Some(_) = ({yield}) {} //~ ERROR: unnecessary parentheses - while let Some(_) = ((yield)) {} //~ ERROR: unnecessary parentheses - {{yield}}; //~ ERROR: unnecessary braces - {( yield )}; //~ ERROR: unnecessary parentheses - while let Some(_) = {(yield)} {} //~ ERROR: unnecessary parentheses - while let Some(_) = {{yield}} {} //~ ERROR: unnecessary braces - - // FIXME: It'd be great if we could also warn them. - ((yield)); - ({ yield }); - }; - let _ = Pin::new(&mut x).resume(Some(5)); -} diff --git a/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.stderr b/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.stderr deleted file mode 100644 index 3f1fee332..000000000 --- a/src/test/ui/lint/unused/issue-74883-unused-paren-baren-yield.stderr +++ /dev/null @@ -1,84 +0,0 @@ -error: unnecessary parentheses around `let` scrutinee expression - --> $DIR/issue-74883-unused-paren-baren-yield.rs:14:29 - | -LL | while let Some(_) = ({yield}) {} - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-74883-unused-paren-baren-yield.rs:3:24 - | -LL | #![deny(unused_braces, unused_parens)] - | ^^^^^^^^^^^^^ -help: remove these parentheses - | -LL - while let Some(_) = ({yield}) {} -LL + while let Some(_) = {yield} {} - | - -error: unnecessary parentheses around `let` scrutinee expression - --> $DIR/issue-74883-unused-paren-baren-yield.rs:15:29 - | -LL | while let Some(_) = ((yield)) {} - | ^ ^ - | -help: remove these parentheses - | -LL - while let Some(_) = ((yield)) {} -LL + while let Some(_) = (yield) {} - | - -error: unnecessary braces around block return value - --> $DIR/issue-74883-unused-paren-baren-yield.rs:16:10 - | -LL | {{yield}}; - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-74883-unused-paren-baren-yield.rs:3:9 - | -LL | #![deny(unused_braces, unused_parens)] - | ^^^^^^^^^^^^^ -help: remove these braces - | -LL - {{yield}}; -LL + {yield}; - | - -error: unnecessary parentheses around block return value - --> $DIR/issue-74883-unused-paren-baren-yield.rs:17:10 - | -LL | {( yield )}; - | ^^ ^^ - | -help: remove these parentheses - | -LL - {( yield )}; -LL + {yield}; - | - -error: unnecessary parentheses around block return value - --> $DIR/issue-74883-unused-paren-baren-yield.rs:18:30 - | -LL | while let Some(_) = {(yield)} {} - | ^ ^ - | -help: remove these parentheses - | -LL - while let Some(_) = {(yield)} {} -LL + while let Some(_) = {yield} {} - | - -error: unnecessary braces around block return value - --> $DIR/issue-74883-unused-paren-baren-yield.rs:19:30 - | -LL | while let Some(_) = {{yield}} {} - | ^ ^ - | -help: remove these braces - | -LL - while let Some(_) = {{yield}} {} -LL + while let Some(_) = {yield} {} - | - -error: aborting due to 6 previous errors - diff --git a/src/test/ui/lint/unused/issue-81314-unused-span-ident.fixed b/src/test/ui/lint/unused/issue-81314-unused-span-ident.fixed deleted file mode 100644 index aac918f2b..000000000 --- a/src/test/ui/lint/unused/issue-81314-unused-span-ident.fixed +++ /dev/null @@ -1,12 +0,0 @@ -// run-rustfix -// Regression test for #81314: Unused variable lint should -// span only the identifier and not the rest of the pattern - -#![deny(unused)] - -fn main() { - let [_rest @ ..] = [1, 2, 3]; //~ ERROR unused variable -} - -pub fn foo([_rest @ ..]: &[i32]) { //~ ERROR unused variable -} diff --git a/src/test/ui/lint/unused/issue-81314-unused-span-ident.rs b/src/test/ui/lint/unused/issue-81314-unused-span-ident.rs deleted file mode 100644 index 78296f425..000000000 --- a/src/test/ui/lint/unused/issue-81314-unused-span-ident.rs +++ /dev/null @@ -1,12 +0,0 @@ -// run-rustfix -// Regression test for #81314: Unused variable lint should -// span only the identifier and not the rest of the pattern - -#![deny(unused)] - -fn main() { - let [rest @ ..] = [1, 2, 3]; //~ ERROR unused variable -} - -pub fn foo([rest @ ..]: &[i32]) { //~ ERROR unused variable -} diff --git a/src/test/ui/lint/unused/issue-81314-unused-span-ident.stderr b/src/test/ui/lint/unused/issue-81314-unused-span-ident.stderr deleted file mode 100644 index 519c71e94..000000000 --- a/src/test/ui/lint/unused/issue-81314-unused-span-ident.stderr +++ /dev/null @@ -1,21 +0,0 @@ -error: unused variable: `rest` - --> $DIR/issue-81314-unused-span-ident.rs:8:10 - | -LL | let [rest @ ..] = [1, 2, 3]; - | ^^^^ help: if this is intentional, prefix it with an underscore: `_rest` - | -note: the lint level is defined here - --> $DIR/issue-81314-unused-span-ident.rs:5:9 - | -LL | #![deny(unused)] - | ^^^^^^ - = note: `#[deny(unused_variables)]` implied by `#[deny(unused)]` - -error: unused variable: `rest` - --> $DIR/issue-81314-unused-span-ident.rs:11:13 - | -LL | pub fn foo([rest @ ..]: &[i32]) { - | ^^^^ help: if this is intentional, prefix it with an underscore: `_rest` - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/issue-85913.rs b/src/test/ui/lint/unused/issue-85913.rs deleted file mode 100644 index 7f3817b6e..000000000 --- a/src/test/ui/lint/unused/issue-85913.rs +++ /dev/null @@ -1,13 +0,0 @@ -#![deny(unused_must_use)] - -pub fn fun() -> i32 { - function() && return 1; - //~^ ERROR: unused logical operation that must be used - return 0; -} - -fn function() -> bool { - true -} - -fn main() {} diff --git a/src/test/ui/lint/unused/issue-85913.stderr b/src/test/ui/lint/unused/issue-85913.stderr deleted file mode 100644 index 8234ed3b1..000000000 --- a/src/test/ui/lint/unused/issue-85913.stderr +++ /dev/null @@ -1,18 +0,0 @@ -error: unused logical operation that must be used - --> $DIR/issue-85913.rs:4:5 - | -LL | function() && return 1; - | ^^^^^^^^^^^^^^^^^^^^^^ the logical operation produces a value - | -note: the lint level is defined here - --> $DIR/issue-85913.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = function() && return 1; - | +++++++ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/issue-88519-unused-paren.rs b/src/test/ui/lint/unused/issue-88519-unused-paren.rs deleted file mode 100644 index ce3d15ac1..000000000 --- a/src/test/ui/lint/unused/issue-88519-unused-paren.rs +++ /dev/null @@ -1,85 +0,0 @@ -// check-pass -// Make sure unused parens lint doesn't emit a false positive. -// See https://github.com/rust-lang/rust/issues/88519 -#![deny(unused_parens)] -#![feature(type_ascription)] - -// binary ops are tested in issue-71290-unused-paren-binop.rs - -mod call { - fn noop() -> u8 { 0 } - fn outside() -> u8 { - ({ noop })() - } - fn inside() -> u8 { - ({ noop }()) - } - fn outside_match() -> u8 { - (match noop { x => x })() - } - fn inside_match() -> u8 { - (match noop { x => x }()) - } - fn outside_if() -> u8 { - (if false { noop } else { noop })() - } - fn inside_if() -> u8 { - (if false { noop } else { noop }()) - } -} - -mod casts { - fn outside() -> u8 { - ({ 0 }) as u8 - } - fn inside() -> u8 { - ({ 0 } as u8) - } - fn outside_match() -> u8 { - (match 0 { x => x }) as u8 - } - fn inside_match() -> u8 { - (match 0 { x => x } as u8) - } - fn outside_if() -> u8 { - (if false { 0 } else { 0 }) as u8 - } - fn inside_if() -> u8 { - (if false { 0 } else { 0 } as u8) - } -} - -mod typeascription { - fn outside() -> u8 { - type_ascribe!(({ 0 }), u8) - } - fn outside_match() -> u8 { - type_ascribe!((match 0 { x => x }), u8) - } - fn outside_if() -> u8 { - type_ascribe!((if false { 0 } else { 0 }), u8) - } -} - -mod index { - fn outside(x: &[u8]) -> u8 { - ({ x })[0] - } - fn inside(x: &[u8]) -> u8 { - ({ x }[0]) - } - fn outside_match(x: &[u8]) -> u8 { - (match x { x => x })[0] - } - fn inside_match(x: &[u8]) -> u8 { - (match x { x => x }[0]) - } - fn outside_if(x: &[u8]) -> u8 { - (if false { x } else { x })[0] - } - fn inside_if(x: &[u8]) -> u8 { - (if false { x } else { x }[0]) - } -} - -fn main() {} diff --git a/src/test/ui/lint/unused/issue-90807-unused-paren-error.rs b/src/test/ui/lint/unused/issue-90807-unused-paren-error.rs deleted file mode 100644 index 2fca2e262..000000000 --- a/src/test/ui/lint/unused/issue-90807-unused-paren-error.rs +++ /dev/null @@ -1,9 +0,0 @@ -// Make sure unused parens lint emit is emitted for loop and match. -// See https://github.com/rust-lang/rust/issues/90807 -// and https://github.com/rust-lang/rust/pull/91956#discussion_r771647953 -#![deny(unused_parens)] - -fn main() { - for _ in (1..loop { break 2 }) {} //~ERROR - for _ in (1..match () { () => 2 }) {} //~ERROR -} diff --git a/src/test/ui/lint/unused/issue-90807-unused-paren-error.stderr b/src/test/ui/lint/unused/issue-90807-unused-paren-error.stderr deleted file mode 100644 index b3b809d5f..000000000 --- a/src/test/ui/lint/unused/issue-90807-unused-paren-error.stderr +++ /dev/null @@ -1,31 +0,0 @@ -error: unnecessary parentheses around `for` iterator expression - --> $DIR/issue-90807-unused-paren-error.rs:7:14 - | -LL | for _ in (1..loop { break 2 }) {} - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-90807-unused-paren-error.rs:4:9 - | -LL | #![deny(unused_parens)] - | ^^^^^^^^^^^^^ -help: remove these parentheses - | -LL - for _ in (1..loop { break 2 }) {} -LL + for _ in 1..loop { break 2 } {} - | - -error: unnecessary parentheses around `for` iterator expression - --> $DIR/issue-90807-unused-paren-error.rs:8:14 - | -LL | for _ in (1..match () { () => 2 }) {} - | ^ ^ - | -help: remove these parentheses - | -LL - for _ in (1..match () { () => 2 }) {} -LL + for _ in 1..match () { () => 2 } {} - | - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/issue-90807-unused-paren.rs b/src/test/ui/lint/unused/issue-90807-unused-paren.rs deleted file mode 100644 index 4c0930f96..000000000 --- a/src/test/ui/lint/unused/issue-90807-unused-paren.rs +++ /dev/null @@ -1,8 +0,0 @@ -// check-pass -// Make sure unused parens lint doesn't emit a false positive. -// See https://github.com/rust-lang/rust/issues/90807 -#![deny(unused_parens)] - -fn main() { - for _ in (1..{ 2 }) {} -} diff --git a/src/test/ui/lint/unused/issue-92751.rs b/src/test/ui/lint/unused/issue-92751.rs deleted file mode 100644 index 2fb292736..000000000 --- a/src/test/ui/lint/unused/issue-92751.rs +++ /dev/null @@ -1,9 +0,0 @@ -#[deny(unused)] -pub fn broken(x: Option<()>) -> i32 { - match x { - Some(()) => (1), //~ ERROR unnecessary parentheses around match arm expression - None => (2), //~ ERROR unnecessary parentheses around match arm expression - } -} - -fn main() { } diff --git a/src/test/ui/lint/unused/issue-92751.stderr b/src/test/ui/lint/unused/issue-92751.stderr deleted file mode 100644 index 0a8d8e672..000000000 --- a/src/test/ui/lint/unused/issue-92751.stderr +++ /dev/null @@ -1,32 +0,0 @@ -error: unnecessary parentheses around match arm expression - --> $DIR/issue-92751.rs:4:21 - | -LL | Some(()) => (1), - | ^ ^ - | -note: the lint level is defined here - --> $DIR/issue-92751.rs:1:8 - | -LL | #[deny(unused)] - | ^^^^^^ - = note: `#[deny(unused_parens)]` implied by `#[deny(unused)]` -help: remove these parentheses - | -LL - Some(()) => (1), -LL + Some(()) => 1, - | - -error: unnecessary parentheses around match arm expression - --> $DIR/issue-92751.rs:5:17 - | -LL | None => (2), - | ^ ^ - | -help: remove these parentheses - | -LL - None => (2), -LL + None => 2, - | - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/lint-unused-extern-crate.rs b/src/test/ui/lint/unused/lint-unused-extern-crate.rs deleted file mode 100644 index d5e4da526..000000000 --- a/src/test/ui/lint/unused/lint-unused-extern-crate.rs +++ /dev/null @@ -1,35 +0,0 @@ -// aux-build:lint_unused_extern_crate.rs -// aux-build:lint_unused_extern_crate2.rs -// aux-build:lint_unused_extern_crate3.rs -// aux-build:lint_unused_extern_crate4.rs -// aux-build:lint_unused_extern_crate5.rs - -#![deny(unused_extern_crates)] -#![allow(unused_variables)] -#![allow(deprecated)] - -extern crate lint_unused_extern_crate5; //~ ERROR: unused extern crate - -pub extern crate lint_unused_extern_crate4; // no error, it is re-exported - -extern crate lint_unused_extern_crate3; // no error, it is used - -extern crate lint_unused_extern_crate2; // no error, the use marks it as used - // even if imported objects aren't used - -extern crate lint_unused_extern_crate as other; // no error, the use * marks it as used - -#[allow(unused_imports)] -use lint_unused_extern_crate2::foo as bar; - -use other::*; - -mod foo { - // Test that this is unused even though an earlier `extern crate` is used. - extern crate lint_unused_extern_crate2; //~ ERROR unused extern crate -} - -fn main() { - lint_unused_extern_crate3::foo(); - let y = foo(); -} diff --git a/src/test/ui/lint/unused/lint-unused-extern-crate.stderr b/src/test/ui/lint/unused/lint-unused-extern-crate.stderr deleted file mode 100644 index 46d8f3bee..000000000 --- a/src/test/ui/lint/unused/lint-unused-extern-crate.stderr +++ /dev/null @@ -1,20 +0,0 @@ -error: unused extern crate - --> $DIR/lint-unused-extern-crate.rs:11:1 - | -LL | extern crate lint_unused_extern_crate5; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it - | -note: the lint level is defined here - --> $DIR/lint-unused-extern-crate.rs:7:9 - | -LL | #![deny(unused_extern_crates)] - | ^^^^^^^^^^^^^^^^^^^^ - -error: unused extern crate - --> $DIR/lint-unused-extern-crate.rs:29:5 - | -LL | extern crate lint_unused_extern_crate2; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/lint-unused-imports.rs b/src/test/ui/lint/unused/lint-unused-imports.rs deleted file mode 100644 index 4754d8880..000000000 --- a/src/test/ui/lint/unused/lint-unused-imports.rs +++ /dev/null @@ -1,90 +0,0 @@ -#![deny(unused_imports)] -#![allow(dead_code)] - -use bar::c::cc as cal; - -use std::mem::*; // shouldn't get errors for not using - // everything imported -use std::fmt::{}; -//~^ ERROR unused import: `std::fmt::{}` - -// Should get errors for both 'Some' and 'None' -use std::option::Option::{Some, None}; -//~^ ERROR unused imports: `None`, `Some` - -use test::A; //~ ERROR unused import: `test::A` -// Be sure that if we just bring some methods into scope that they're also -// counted as being used. -use test::B; -// But only when actually used: do not get confused by the method with the same name. -use test::B2; //~ ERROR unused import: `test::B2` - -// Make sure this import is warned about when at least one of its imported names -// is unused -use test2::{foo, bar}; //~ ERROR unused import: `bar` - -mod test2 { - pub fn foo() {} - pub fn bar() {} -} - -mod test { - pub trait A { fn a(&self) {} } - pub trait B { fn b(&self) {} } - pub trait B2 { fn b(&self) {} } - pub struct C; - impl A for C {} - impl B for C {} -} - -mod foo { - pub struct Point{pub x: isize, pub y: isize} - pub struct Square{pub p: Point, pub h: usize, pub w: usize} -} - -mod bar { - // Don't ignore on 'pub use' because we're not sure if it's used or not - pub use std::cmp::PartialEq; - pub struct Square; - - pub mod c { - use foo::Point; - use foo::Square; //~ ERROR unused import: `foo::Square` - pub fn cc(_p: Point) -> super::Square { - fn f() -> super::Square { - super::Square - } - f() - } - } - - #[allow(unused_imports)] - mod foo { - use std::cmp::PartialEq; - } -} - -fn g() { - use self::g; //~ ERROR unused import: `self::g` - //~^ ERROR the item `g` is imported redundantly - fn f() { - self::g(); - } -} - -// cf. issue #35135. -#[allow(unused_variables)] -fn h() { - use test2::foo; //~ ERROR unused import: `test2::foo` - //~^ ERROR the item `foo` is imported redundantly - let foo = 0; -} - -fn main() { - cal(foo::Point{x:3, y:9}); - let mut a = 3; - let mut b = 4; - swap(&mut a, &mut b); - test::C.b(); - let _a = foo(); -} diff --git a/src/test/ui/lint/unused/lint-unused-imports.stderr b/src/test/ui/lint/unused/lint-unused-imports.stderr deleted file mode 100644 index 0574ca456..000000000 --- a/src/test/ui/lint/unused/lint-unused-imports.stderr +++ /dev/null @@ -1,78 +0,0 @@ -error: unused import: `std::fmt::{}` - --> $DIR/lint-unused-imports.rs:8:5 - | -LL | use std::fmt::{}; - | ^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/lint-unused-imports.rs:1:9 - | -LL | #![deny(unused_imports)] - | ^^^^^^^^^^^^^^ - -error: unused imports: `None`, `Some` - --> $DIR/lint-unused-imports.rs:12:27 - | -LL | use std::option::Option::{Some, None}; - | ^^^^ ^^^^ - -error: unused import: `test::A` - --> $DIR/lint-unused-imports.rs:15:5 - | -LL | use test::A; - | ^^^^^^^ - -error: unused import: `bar` - --> $DIR/lint-unused-imports.rs:24:18 - | -LL | use test2::{foo, bar}; - | ^^^ - -error: unused import: `foo::Square` - --> $DIR/lint-unused-imports.rs:52:13 - | -LL | use foo::Square; - | ^^^^^^^^^^^ - -error: the item `g` is imported redundantly - --> $DIR/lint-unused-imports.rs:68:9 - | -LL | / fn g() { -LL | | use self::g; - | | ^^^^^^^ -LL | | -LL | | fn f() { -LL | | self::g(); -LL | | } -LL | | } - | |_- the item `g` is already defined here - -error: unused import: `self::g` - --> $DIR/lint-unused-imports.rs:68:9 - | -LL | use self::g; - | ^^^^^^^ - -error: the item `foo` is imported redundantly - --> $DIR/lint-unused-imports.rs:78:9 - | -LL | use test2::{foo, bar}; - | --- the item `foo` is already imported here -... -LL | use test2::foo; - | ^^^^^^^^^^ - -error: unused import: `test2::foo` - --> $DIR/lint-unused-imports.rs:78:9 - | -LL | use test2::foo; - | ^^^^^^^^^^ - -error: unused import: `test::B2` - --> $DIR/lint-unused-imports.rs:20:5 - | -LL | use test::B2; - | ^^^^^^^^ - -error: aborting due to 10 previous errors - diff --git a/src/test/ui/lint/unused/lint-unused-mut-self.fixed b/src/test/ui/lint/unused/lint-unused-mut-self.fixed deleted file mode 100644 index 92ce10358..000000000 --- a/src/test/ui/lint/unused/lint-unused-mut-self.fixed +++ /dev/null @@ -1,14 +0,0 @@ -// run-rustfix - -#![allow(unused_assignments)] -#![allow(unused_variables)] -#![allow(dead_code)] -#![deny(unused_mut)] - -struct Foo; -impl Foo { - fn foo(self) {} //~ ERROR: variable does not need to be mutable - fn bar(self: Box<Foo>) {} //~ ERROR: variable does not need to be mutable -} - -fn main() {} diff --git a/src/test/ui/lint/unused/lint-unused-mut-self.rs b/src/test/ui/lint/unused/lint-unused-mut-self.rs deleted file mode 100644 index 70736ce21..000000000 --- a/src/test/ui/lint/unused/lint-unused-mut-self.rs +++ /dev/null @@ -1,14 +0,0 @@ -// run-rustfix - -#![allow(unused_assignments)] -#![allow(unused_variables)] -#![allow(dead_code)] -#![deny(unused_mut)] - -struct Foo; -impl Foo { - fn foo(mut self) {} //~ ERROR: variable does not need to be mutable - fn bar(mut self: Box<Foo>) {} //~ ERROR: variable does not need to be mutable -} - -fn main() {} diff --git a/src/test/ui/lint/unused/lint-unused-mut-self.stderr b/src/test/ui/lint/unused/lint-unused-mut-self.stderr deleted file mode 100644 index 01a524bd3..000000000 --- a/src/test/ui/lint/unused/lint-unused-mut-self.stderr +++ /dev/null @@ -1,24 +0,0 @@ -error: variable does not need to be mutable - --> $DIR/lint-unused-mut-self.rs:10:12 - | -LL | fn foo(mut self) {} - | ----^^^^ - | | - | help: remove this `mut` - | -note: the lint level is defined here - --> $DIR/lint-unused-mut-self.rs:6:9 - | -LL | #![deny(unused_mut)] - | ^^^^^^^^^^ - -error: variable does not need to be mutable - --> $DIR/lint-unused-mut-self.rs:11:12 - | -LL | fn bar(mut self: Box<Foo>) {} - | ----^^^^ - | | - | help: remove this `mut` - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/lint-unused-mut-variables.rs b/src/test/ui/lint/unused/lint-unused-mut-variables.rs deleted file mode 100644 index 67ec7facf..000000000 --- a/src/test/ui/lint/unused/lint-unused-mut-variables.rs +++ /dev/null @@ -1,207 +0,0 @@ -// edition:2018 - -// Exercise the unused_mut attribute in some positive and negative cases - -#![warn(unused_mut)] -#![feature(async_closure, raw_ref_op)] - -async fn baz_async( - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, -) {} -fn baz( - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - #[allow(unused_mut)] (mut c, d): (i32, i32) -) {} - -struct RefStruct {} -impl RefStruct { - async fn baz_async( - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - ) {} - fn baz( - &self, - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - #[allow(unused_mut)] (mut c, d): (i32, i32) - ) {} -} - -trait RefTrait { - fn baz( - &self, - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - #[allow(unused_mut)] (mut c, d): (i32, i32) - ) {} -} -impl RefTrait for () { - fn baz( - &self, - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - #[allow(unused_mut)] (mut c, d): (i32, i32) - ) {} -} - -fn main() { - let _ = async move | - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - | {}; - let _ = | - mut a: i32, - //~^ WARN: variable does not need to be mutable - #[allow(unused_mut)] mut b: i32, - #[allow(unused_mut)] (mut c, d): (i32, i32) - | {}; - - // negative cases - let mut a = 3; //~ WARN: variable does not need to be mutable - - let mut a = 2; //~ WARN: variable does not need to be mutable - - let mut b = 3; //~ WARN: variable does not need to be mutable - - let mut a = vec![3]; //~ WARN: variable does not need to be mutable - - let (mut a, b) = (1, 2); //~ WARN: variable does not need to be mutable - - let mut a; //~ WARN: variable does not need to be mutable - - a = 3; - - let mut b; //~ WARN: variable does not need to be mutable - - if true { - b = 3; - } else { - b = 4; - } - - match 30 { - mut x => {} //~ WARN: variable does not need to be mutable - - } - - match (30, 2) { - // FIXME: Here's a false positive, - // shouldn't be removed `mut` not to be bound with a different way. - (mut x, 1) | //~ WARN: variable does not need to be mutable - - (mut x, 2) | - (mut x, 3) => { - } - _ => {} - } - - let x = |mut y: isize| 10; //~ WARN: variable does not need to be mutable - - fn what(mut foo: isize) {} //~ WARN: variable does not need to be mutable - - - let mut a = &mut 5; //~ WARN: variable does not need to be mutable - - *a = 4; - - let mut a = 5; - let mut b = (&mut a,); //~ WARN: variable does not need to be mutable - *b.0 = 4; - - let mut x = &mut 1; //~ WARN: variable does not need to be mutable - - let mut f = || { - *x += 1; - }; - f(); - - fn mut_ref_arg(mut arg : &mut [u8]) -> &mut [u8] { - &mut arg[..] //~^ WARN: variable does not need to be mutable - - } - - let mut v : &mut Vec<()> = &mut vec![]; //~ WARN: variable does not need to be mutable - - v.push(()); - - // positive cases - let mut a = 2; - a = 3; - let mut a = Vec::new(); - a.push(3); - let mut a = Vec::new(); - callback(|| { - a.push(3); - }); - let mut a = Vec::new(); - callback(|| { - callback(|| { - a.push(3); - }); - }); - let (mut a, b) = (1, 2); - a = 34; - - match 30 { - mut x => { - x = 21; - } - } - - match (30, 2) { - (mut x, 1) | - (mut x, 2) | - (mut x, 3) => { - x = 21 - } - _ => {} - } - - // Attribute should be respected on match arms - match 0 { - #[allow(unused_mut)] - mut x => { - let mut y = 1; - }, - } - - let x = |mut y: isize| y = 32; - fn nothing(mut foo: isize) { foo = 37; } - - // leading underscore should avoid the warning, just like the - // unused variable lint. - let mut _allowed = 1; - - let mut raw_address_of_mut = 1; // OK - let mut_ptr = &raw mut raw_address_of_mut; - - let mut raw_address_of_const = 1; //~ WARN: variable does not need to be mutable - let const_ptr = &raw const raw_address_of_const; -} - -fn callback<F>(f: F) where F: FnOnce() {} - -// make sure the lint attribute can be turned off -#[allow(unused_mut)] -fn foo(mut a: isize) { - let mut a = 3; - let mut b = vec![2]; -} - -// make sure the lint attribute can be turned off on let statements -#[deny(unused_mut)] -fn bar() { - #[allow(unused_mut)] - let mut a = 3; - let mut b = vec![2]; //~ ERROR: variable does not need to be mutable - -} diff --git a/src/test/ui/lint/unused/lint-unused-mut-variables.stderr b/src/test/ui/lint/unused/lint-unused-mut-variables.stderr deleted file mode 100644 index 805ed2b40..000000000 --- a/src/test/ui/lint/unused/lint-unused-mut-variables.stderr +++ /dev/null @@ -1,222 +0,0 @@ -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:9:5 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - | -note: the lint level is defined here - --> $DIR/lint-unused-mut-variables.rs:5:9 - | -LL | #![warn(unused_mut)] - | ^^^^^^^^^^ - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:23:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:14:5 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:29:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:39:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:48:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:57:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:62:9 - | -LL | mut a: i32, - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:107:14 - | -LL | let x = |mut y: isize| 10; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:69:9 - | -LL | let mut a = 3; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:71:9 - | -LL | let mut a = 2; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:73:9 - | -LL | let mut b = 3; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:75:9 - | -LL | let mut a = vec![3]; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:77:10 - | -LL | let (mut a, b) = (1, 2); - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:79:9 - | -LL | let mut a; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:83:9 - | -LL | let mut b; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:92:9 - | -LL | mut x => {} - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:99:10 - | -LL | (mut x, 1) | - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:112:9 - | -LL | let mut a = &mut 5; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:117:9 - | -LL | let mut b = (&mut a,); - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:120:9 - | -LL | let mut x = &mut 1; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:132:9 - | -LL | let mut v : &mut Vec<()> = &mut vec![]; - | ----^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:187:9 - | -LL | let mut raw_address_of_const = 1; - | ----^^^^^^^^^^^^^^^^^^^^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:109:13 - | -LL | fn what(mut foo: isize) {} - | ----^^^ - | | - | help: remove this `mut` - -warning: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:127:20 - | -LL | fn mut_ref_arg(mut arg : &mut [u8]) -> &mut [u8] { - | ----^^^ - | | - | help: remove this `mut` - -error: variable does not need to be mutable - --> $DIR/lint-unused-mut-variables.rs:205:9 - | -LL | let mut b = vec![2]; - | ----^ - | | - | help: remove this `mut` - | -note: the lint level is defined here - --> $DIR/lint-unused-mut-variables.rs:201:8 - | -LL | #[deny(unused_mut)] - | ^^^^^^^^^^ - -error: aborting due to previous error; 25 warnings emitted - diff --git a/src/test/ui/lint/unused/lint-unused-variables.rs b/src/test/ui/lint/unused/lint-unused-variables.rs deleted file mode 100644 index 6850e9992..000000000 --- a/src/test/ui/lint/unused/lint-unused-variables.rs +++ /dev/null @@ -1,79 +0,0 @@ -// compile-flags: --cfg something -// edition:2018 - -#![feature(async_closure)] -#![deny(unused_variables)] - -async fn foo_async( - a: i32, - //~^ ERROR unused variable: `a` - #[allow(unused_variables)] b: i32, -) {} -fn foo( - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` -) {} - -struct RefStruct {} -impl RefStruct { - async fn bar_async( - &self, - a: i32, - //~^ ERROR unused variable: `a` - #[allow(unused_variables)] b: i32, - ) {} - fn bar( - &self, - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} - fn issue_64682_associated_fn( - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} -} -trait RefTrait { - fn bar( - &self, - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} - fn issue_64682_associated_fn( - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} -} -impl RefTrait for RefStruct { - fn bar( - &self, - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} - fn issue_64682_associated_fn( - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - ) {} -} - -fn main() { - let _: fn(_, _) = foo; - let a = async move | - a: i32, - //~^ ERROR unused variable: `a` - #[allow(unused_variables)] b: i32, - | {}; - let b = | - #[allow(unused_variables)] a: i32, - b: i32, - //~^ ERROR unused variable: `b` - | {}; - let _ = a(1, 2); - let _ = b(1, 2); -} diff --git a/src/test/ui/lint/unused/lint-unused-variables.stderr b/src/test/ui/lint/unused/lint-unused-variables.stderr deleted file mode 100644 index fd9a5bcbf..000000000 --- a/src/test/ui/lint/unused/lint-unused-variables.stderr +++ /dev/null @@ -1,74 +0,0 @@ -error: unused variable: `a` - --> $DIR/lint-unused-variables.rs:8:5 - | -LL | a: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_a` - | -note: the lint level is defined here - --> $DIR/lint-unused-variables.rs:5:9 - | -LL | #![deny(unused_variables)] - | ^^^^^^^^^^^^^^^^ - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:14:5 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `a` - --> $DIR/lint-unused-variables.rs:22:9 - | -LL | a: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_a` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:29:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:34:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:42:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:47:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:55:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:60:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: unused variable: `a` - --> $DIR/lint-unused-variables.rs:68:9 - | -LL | a: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_a` - -error: unused variable: `b` - --> $DIR/lint-unused-variables.rs:74:9 - | -LL | b: i32, - | ^ help: if this is intentional, prefix it with an underscore: `_b` - -error: aborting due to 11 previous errors - diff --git a/src/test/ui/lint/unused/must-use-box-from-raw.rs b/src/test/ui/lint/unused/must-use-box-from-raw.rs deleted file mode 100644 index 9ea772689..000000000 --- a/src/test/ui/lint/unused/must-use-box-from-raw.rs +++ /dev/null @@ -1,11 +0,0 @@ -// #99269 - -// check-pass - -#![warn(unused_must_use)] - -unsafe fn free<T>(ptr: *mut T) { - Box::from_raw(ptr); //~ WARNING unused return value -} - -fn main() {} diff --git a/src/test/ui/lint/unused/must-use-box-from-raw.stderr b/src/test/ui/lint/unused/must-use-box-from-raw.stderr deleted file mode 100644 index 721182757..000000000 --- a/src/test/ui/lint/unused/must-use-box-from-raw.stderr +++ /dev/null @@ -1,15 +0,0 @@ -warning: unused return value of `Box::<T>::from_raw` that must be used - --> $DIR/must-use-box-from-raw.rs:8:5 - | -LL | Box::from_raw(ptr); - | ^^^^^^^^^^^^^^^^^^ - | - = note: call `drop(from_raw(ptr))` if you intend to drop the `Box` -note: the lint level is defined here - --> $DIR/must-use-box-from-raw.rs:5:9 - | -LL | #![warn(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -warning: 1 warning emitted - diff --git a/src/test/ui/lint/unused/must-use-ops.rs b/src/test/ui/lint/unused/must-use-ops.rs deleted file mode 100644 index 60f877aa8..000000000 --- a/src/test/ui/lint/unused/must-use-ops.rs +++ /dev/null @@ -1,51 +0,0 @@ -// Issue #50124 - Test warning for unused operator expressions - -// check-pass - -#![warn(unused_must_use)] -#![feature(never_type)] - -fn deref_never(x: &!) { - // Don't lint for uninhabited typess - *x; -} - -fn main() { - let val = 1; - let val_pointer = &val; - - // Comparison Operators - val == 1; //~ WARNING unused comparison - val < 1; //~ WARNING unused comparison - val <= 1; //~ WARNING unused comparison - val != 1; //~ WARNING unused comparison - val >= 1; //~ WARNING unused comparison - val > 1; //~ WARNING unused comparison - - // Arithmetic Operators - val + 2; //~ WARNING unused arithmetic operation - val - 2; //~ WARNING unused arithmetic operation - val / 2; //~ WARNING unused arithmetic operation - val * 2; //~ WARNING unused arithmetic operation - val % 2; //~ WARNING unused arithmetic operation - - // Logical Operators - true && true; //~ WARNING unused logical operation - false || true; //~ WARNING unused logical operation - - // Bitwise Operators - 5 ^ val; //~ WARNING unused bitwise operation - 5 & val; //~ WARNING unused bitwise operation - 5 | val; //~ WARNING unused bitwise operation - 5 << val; //~ WARNING unused bitwise operation - 5 >> val; //~ WARNING unused bitwise operation - - // Unary Operators - !val; //~ WARNING unused unary operation - -val; //~ WARNING unused unary operation - *val_pointer; //~ WARNING unused unary operation - - if false { - deref_never(&panic!()); - } -} diff --git a/src/test/ui/lint/unused/must-use-ops.stderr b/src/test/ui/lint/unused/must-use-ops.stderr deleted file mode 100644 index 79a53d39c..000000000 --- a/src/test/ui/lint/unused/must-use-ops.stderr +++ /dev/null @@ -1,238 +0,0 @@ -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:18:5 - | -LL | val == 1; - | ^^^^^^^^ the comparison produces a value - | -note: the lint level is defined here - --> $DIR/must-use-ops.rs:5:9 - | -LL | #![warn(unused_must_use)] - | ^^^^^^^^^^^^^^^ -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val == 1; - | +++++++ - -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:19:5 - | -LL | val < 1; - | ^^^^^^^ the comparison produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val < 1; - | +++++++ - -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:20:5 - | -LL | val <= 1; - | ^^^^^^^^ the comparison produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val <= 1; - | +++++++ - -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:21:5 - | -LL | val != 1; - | ^^^^^^^^ the comparison produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val != 1; - | +++++++ - -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:22:5 - | -LL | val >= 1; - | ^^^^^^^^ the comparison produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val >= 1; - | +++++++ - -warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:23:5 - | -LL | val > 1; - | ^^^^^^^ the comparison produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val > 1; - | +++++++ - -warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:26:5 - | -LL | val + 2; - | ^^^^^^^ the arithmetic operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val + 2; - | +++++++ - -warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:27:5 - | -LL | val - 2; - | ^^^^^^^ the arithmetic operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val - 2; - | +++++++ - -warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:28:5 - | -LL | val / 2; - | ^^^^^^^ the arithmetic operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val / 2; - | +++++++ - -warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:29:5 - | -LL | val * 2; - | ^^^^^^^ the arithmetic operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val * 2; - | +++++++ - -warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:30:5 - | -LL | val % 2; - | ^^^^^^^ the arithmetic operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = val % 2; - | +++++++ - -warning: unused logical operation that must be used - --> $DIR/must-use-ops.rs:33:5 - | -LL | true && true; - | ^^^^^^^^^^^^ the logical operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = true && true; - | +++++++ - -warning: unused logical operation that must be used - --> $DIR/must-use-ops.rs:34:5 - | -LL | false || true; - | ^^^^^^^^^^^^^ the logical operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = false || true; - | +++++++ - -warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:37:5 - | -LL | 5 ^ val; - | ^^^^^^^ the bitwise operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = 5 ^ val; - | +++++++ - -warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:38:5 - | -LL | 5 & val; - | ^^^^^^^ the bitwise operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = 5 & val; - | +++++++ - -warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:39:5 - | -LL | 5 | val; - | ^^^^^^^ the bitwise operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = 5 | val; - | +++++++ - -warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:40:5 - | -LL | 5 << val; - | ^^^^^^^^ the bitwise operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = 5 << val; - | +++++++ - -warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:41:5 - | -LL | 5 >> val; - | ^^^^^^^^ the bitwise operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = 5 >> val; - | +++++++ - -warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:44:5 - | -LL | !val; - | ^^^^ the unary operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = !val; - | +++++++ - -warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:45:5 - | -LL | -val; - | ^^^^ the unary operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = -val; - | +++++++ - -warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:46:5 - | -LL | *val_pointer; - | ^^^^^^^^^^^^ the unary operation produces a value - | -help: use `let _ = ...` to ignore the resulting value - | -LL | let _ = *val_pointer; - | +++++++ - -warning: 21 warnings emitted - diff --git a/src/test/ui/lint/unused/must_use-array.rs b/src/test/ui/lint/unused/must_use-array.rs deleted file mode 100644 index b7bae4b0a..000000000 --- a/src/test/ui/lint/unused/must_use-array.rs +++ /dev/null @@ -1,54 +0,0 @@ -#![deny(unused_must_use)] - -#[must_use] -#[derive(Clone, Copy)] -struct S; - -struct A; - -#[must_use] -trait T {} - -impl T for A {} - -fn empty() -> [S; 0] { - [] -} - -fn singleton() -> [S; 1] { - [S] -} - -fn many() -> [S; 4] { - [S, S, S, S] -} - -fn array_of_impl_trait() -> [impl T; 2] { - [A, A] -} - -fn impl_array() -> [(u8, Box<dyn T>); 2] { - [(0, Box::new(A)), (0, Box::new(A))] -} - -fn array_of_arrays_of_arrays() -> [[[S; 1]; 2]; 1] { - [[[S], [S]]] -} - -fn usize_max() -> [S; usize::MAX] { - [S; usize::MAX] -} - -fn main() { - empty(); // ok - singleton(); //~ ERROR unused array of `S` that must be used - many(); //~ ERROR unused array of `S` that must be used - ([S], 0, ()); //~ ERROR unused array of `S` in tuple element 0 that must be used - array_of_impl_trait(); //~ ERROR unused array of implementers of `T` that must be used - impl_array(); - //~^ ERROR unused array of boxed `T` trait objects in tuple element 1 that must be used - array_of_arrays_of_arrays(); - //~^ ERROR unused array of arrays of arrays of `S` that must be used - usize_max(); - //~^ ERROR unused array of `S` that must be used -} diff --git a/src/test/ui/lint/unused/must_use-array.stderr b/src/test/ui/lint/unused/must_use-array.stderr deleted file mode 100644 index 61ef2088d..000000000 --- a/src/test/ui/lint/unused/must_use-array.stderr +++ /dev/null @@ -1,50 +0,0 @@ -error: unused array of `S` that must be used - --> $DIR/must_use-array.rs:44:5 - | -LL | singleton(); - | ^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/must_use-array.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused array of `S` that must be used - --> $DIR/must_use-array.rs:45:5 - | -LL | many(); - | ^^^^^^ - -error: unused array of `S` in tuple element 0 that must be used - --> $DIR/must_use-array.rs:46:6 - | -LL | ([S], 0, ()); - | ^^^ - -error: unused array of implementers of `T` that must be used - --> $DIR/must_use-array.rs:47:5 - | -LL | array_of_impl_trait(); - | ^^^^^^^^^^^^^^^^^^^^^ - -error: unused array of boxed `T` trait objects in tuple element 1 that must be used - --> $DIR/must_use-array.rs:48:5 - | -LL | impl_array(); - | ^^^^^^^^^^^^ - -error: unused array of arrays of arrays of `S` that must be used - --> $DIR/must_use-array.rs:50:5 - | -LL | array_of_arrays_of_arrays(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: unused array of `S` that must be used - --> $DIR/must_use-array.rs:52:5 - | -LL | usize_max(); - | ^^^^^^^^^^^ - -error: aborting due to 7 previous errors - diff --git a/src/test/ui/lint/unused/must_use-in-stdlib-traits.rs b/src/test/ui/lint/unused/must_use-in-stdlib-traits.rs deleted file mode 100644 index 70dddf61f..000000000 --- a/src/test/ui/lint/unused/must_use-in-stdlib-traits.rs +++ /dev/null @@ -1,47 +0,0 @@ -#![deny(unused_must_use)] -#![feature(arbitrary_self_types)] - -use std::iter::Iterator; -use std::future::Future; - -use std::task::{Context, Poll}; -use std::pin::Pin; -use std::unimplemented; - -struct MyFuture; - -impl Future for MyFuture { - type Output = u32; - - fn poll(self: Pin<&mut Self>, _: &mut Context<'_>) -> Poll<u32> { - Poll::Pending - } -} - -fn iterator() -> impl Iterator { - std::iter::empty::<u32>() -} - -fn future() -> impl Future { - MyFuture -} - -fn square_fn_once() -> impl FnOnce(u32) -> u32 { - |x| x * x -} - -fn square_fn_mut() -> impl FnMut(u32) -> u32 { - |x| x * x -} - -fn square_fn() -> impl Fn(u32) -> u32 { - |x| x * x -} - -fn main() { - iterator(); //~ ERROR unused implementer of `Iterator` that must be used - future(); //~ ERROR unused implementer of `Future` that must be used - square_fn_once(); //~ ERROR unused implementer of `FnOnce` that must be used - square_fn_mut(); //~ ERROR unused implementer of `FnMut` that must be used - square_fn(); //~ ERROR unused implementer of `Fn` that must be used -} diff --git a/src/test/ui/lint/unused/must_use-in-stdlib-traits.stderr b/src/test/ui/lint/unused/must_use-in-stdlib-traits.stderr deleted file mode 100644 index ef738708d..000000000 --- a/src/test/ui/lint/unused/must_use-in-stdlib-traits.stderr +++ /dev/null @@ -1,47 +0,0 @@ -error: unused implementer of `Iterator` that must be used - --> $DIR/must_use-in-stdlib-traits.rs:42:4 - | -LL | iterator(); - | ^^^^^^^^^^ - | - = note: iterators are lazy and do nothing unless consumed -note: the lint level is defined here - --> $DIR/must_use-in-stdlib-traits.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused implementer of `Future` that must be used - --> $DIR/must_use-in-stdlib-traits.rs:43:4 - | -LL | future(); - | ^^^^^^^^ - | - = note: futures do nothing unless you `.await` or poll them - -error: unused implementer of `FnOnce` that must be used - --> $DIR/must_use-in-stdlib-traits.rs:44:4 - | -LL | square_fn_once(); - | ^^^^^^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused implementer of `FnMut` that must be used - --> $DIR/must_use-in-stdlib-traits.rs:45:4 - | -LL | square_fn_mut(); - | ^^^^^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused implementer of `Fn` that must be used - --> $DIR/must_use-in-stdlib-traits.rs:46:4 - | -LL | square_fn(); - | ^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: aborting due to 5 previous errors - diff --git a/src/test/ui/lint/unused/must_use-trait.rs b/src/test/ui/lint/unused/must_use-trait.rs deleted file mode 100644 index 0aa751443..000000000 --- a/src/test/ui/lint/unused/must_use-trait.rs +++ /dev/null @@ -1,39 +0,0 @@ -#![deny(unused_must_use)] - -#[must_use] -trait Critical {} - -trait NotSoCritical {} - -trait DecidedlyUnimportant {} - -struct Anon; - -impl Critical for Anon {} -impl NotSoCritical for Anon {} -impl DecidedlyUnimportant for Anon {} - -fn get_critical() -> impl NotSoCritical + Critical + DecidedlyUnimportant { - Anon {} -} - -fn get_boxed_critical() -> Box<dyn Critical> { - Box::new(Anon {}) -} - -fn get_nested_boxed_critical() -> Box<Box<dyn Critical>> { - Box::new(Box::new(Anon {})) -} - -fn get_critical_tuple() -> (u32, Box<dyn Critical>, impl Critical, ()) { - (0, get_boxed_critical(), get_critical(), ()) -} - -fn main() { - get_critical(); //~ ERROR unused implementer of `Critical` that must be used - get_boxed_critical(); //~ ERROR unused boxed `Critical` trait object that must be used - get_nested_boxed_critical(); - //~^ ERROR unused boxed boxed `Critical` trait object that must be used - get_critical_tuple(); //~ ERROR unused boxed `Critical` trait object in tuple element 1 - //~^ ERROR unused implementer of `Critical` in tuple element 2 -} diff --git a/src/test/ui/lint/unused/must_use-trait.stderr b/src/test/ui/lint/unused/must_use-trait.stderr deleted file mode 100644 index 2f5496484..000000000 --- a/src/test/ui/lint/unused/must_use-trait.stderr +++ /dev/null @@ -1,38 +0,0 @@ -error: unused implementer of `Critical` that must be used - --> $DIR/must_use-trait.rs:33:5 - | -LL | get_critical(); - | ^^^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/must_use-trait.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused boxed `Critical` trait object that must be used - --> $DIR/must_use-trait.rs:34:5 - | -LL | get_boxed_critical(); - | ^^^^^^^^^^^^^^^^^^^^ - -error: unused boxed boxed `Critical` trait object that must be used - --> $DIR/must_use-trait.rs:35:5 - | -LL | get_nested_boxed_critical(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: unused boxed `Critical` trait object in tuple element 1 that must be used - --> $DIR/must_use-trait.rs:37:5 - | -LL | get_critical_tuple(); - | ^^^^^^^^^^^^^^^^^^^^ - -error: unused implementer of `Critical` in tuple element 2 that must be used - --> $DIR/must_use-trait.rs:37:5 - | -LL | get_critical_tuple(); - | ^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 5 previous errors - diff --git a/src/test/ui/lint/unused/must_use-tuple.rs b/src/test/ui/lint/unused/must_use-tuple.rs deleted file mode 100644 index 0f0aa2025..000000000 --- a/src/test/ui/lint/unused/must_use-tuple.rs +++ /dev/null @@ -1,17 +0,0 @@ -#![deny(unused_must_use)] - -fn foo() -> (Result<(), ()>, ()) { - (Ok::<(), ()>(()), ()) -} - -fn main() { - (Ok::<(), ()>(()),); //~ ERROR unused `Result` - - (Ok::<(), ()>(()), 0, Ok::<(), ()>(()), 5); - //~^ ERROR unused `Result` - //~^^ ERROR unused `Result` - - foo(); //~ ERROR unused `Result` - - ((Err::<(), ()>(()), ()), ()); //~ ERROR unused `Result` -} diff --git a/src/test/ui/lint/unused/must_use-tuple.stderr b/src/test/ui/lint/unused/must_use-tuple.stderr deleted file mode 100644 index 63e0318fb..000000000 --- a/src/test/ui/lint/unused/must_use-tuple.stderr +++ /dev/null @@ -1,47 +0,0 @@ -error: unused `Result` in tuple element 0 that must be used - --> $DIR/must_use-tuple.rs:8:6 - | -LL | (Ok::<(), ()>(()),); - | ^^^^^^^^^^^^^^^^ - | - = note: this `Result` may be an `Err` variant, which should be handled -note: the lint level is defined here - --> $DIR/must_use-tuple.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused `Result` in tuple element 0 that must be used - --> $DIR/must_use-tuple.rs:10:6 - | -LL | (Ok::<(), ()>(()), 0, Ok::<(), ()>(()), 5); - | ^^^^^^^^^^^^^^^^ - | - = note: this `Result` may be an `Err` variant, which should be handled - -error: unused `Result` in tuple element 2 that must be used - --> $DIR/must_use-tuple.rs:10:27 - | -LL | (Ok::<(), ()>(()), 0, Ok::<(), ()>(()), 5); - | ^^^^^^^^^^^^^^^^ - | - = note: this `Result` may be an `Err` variant, which should be handled - -error: unused `Result` in tuple element 0 that must be used - --> $DIR/must_use-tuple.rs:14:5 - | -LL | foo(); - | ^^^^^ - | - = note: this `Result` may be an `Err` variant, which should be handled - -error: unused `Result` in tuple element 0 that must be used - --> $DIR/must_use-tuple.rs:16:7 - | -LL | ((Err::<(), ()>(()), ()), ()); - | ^^^^^^^^^^^^^^^^^ - | - = note: this `Result` may be an `Err` variant, which should be handled - -error: aborting due to 5 previous errors - diff --git a/src/test/ui/lint/unused/must_use-unit.rs b/src/test/ui/lint/unused/must_use-unit.rs deleted file mode 100644 index 4dd4798ab..000000000 --- a/src/test/ui/lint/unused/must_use-unit.rs +++ /dev/null @@ -1,16 +0,0 @@ -#![feature(never_type)] -#![deny(unused_must_use)] - -#[must_use] -fn foo() {} - -#[must_use] -fn bar() -> ! { - unimplemented!() -} - -fn main() { - foo(); //~ unused return value of `foo` - - bar(); //~ unused return value of `bar` -} diff --git a/src/test/ui/lint/unused/must_use-unit.stderr b/src/test/ui/lint/unused/must_use-unit.stderr deleted file mode 100644 index 9fcbc5074..000000000 --- a/src/test/ui/lint/unused/must_use-unit.stderr +++ /dev/null @@ -1,20 +0,0 @@ -error: unused return value of `foo` that must be used - --> $DIR/must_use-unit.rs:13:5 - | -LL | foo(); - | ^^^^^ - | -note: the lint level is defined here - --> $DIR/must_use-unit.rs:2:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused return value of `bar` that must be used - --> $DIR/must_use-unit.rs:15:5 - | -LL | bar(); - | ^^^^^ - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/no-unused-parens-return-block.rs b/src/test/ui/lint/unused/no-unused-parens-return-block.rs deleted file mode 100644 index 37dc519a2..000000000 --- a/src/test/ui/lint/unused/no-unused-parens-return-block.rs +++ /dev/null @@ -1,9 +0,0 @@ -// run-pass - -#![deny(unused_parens)] -#![allow(unreachable_code)] - -fn main() { - match (return) {} // ok - if (return) {} // ok -} diff --git a/src/test/ui/lint/unused/unused-async.rs b/src/test/ui/lint/unused/unused-async.rs deleted file mode 100644 index 4be93aa15..000000000 --- a/src/test/ui/lint/unused/unused-async.rs +++ /dev/null @@ -1,62 +0,0 @@ -// edition:2018 -#![deny(unused_must_use)] - - -#[must_use] -async fn foo() -> i32 { - 1 -} - -#[must_use] -fn bar() -> impl std::future::Future<Output=i32> { - async { - 42 - } -} - -async fn baz() -> i32 { - 0 -} - -struct Wowee {} - -impl Wowee { - #[must_use] - async fn test_method() -> i32 { - 1 - } -} - -async fn test() { - foo(); //~ ERROR unused return value of `foo` that must be used - //~^ ERROR unused implementer of `Future` that must be used - foo().await; //~ ERROR unused output of future returned by `foo` that must be used - bar(); //~ ERROR unused return value of `bar` that must be used - //~^ ERROR unused implementer of `Future` that must be used - bar().await; //~ ERROR unused output of future returned by `bar` that must be used - baz(); //~ ERROR unused implementer of `Future` that must be used - baz().await; // ok -} - -/* FIXME(guswynn) update this test when async-fn-in-traits works -trait Doer { - #[must_use] - async fn test_trait_method() -> i32; - WARNING must_use - async fn test_other_trait() -> i32; -} - -impl Doer for Wowee { - async fn test_trait_method() -> i32 { - 1 - } - #[must_use] - async fn test_other_trait() -> i32 { - WARNING must_use - 1 - } -} -*/ - -fn main() { -} diff --git a/src/test/ui/lint/unused/unused-async.stderr b/src/test/ui/lint/unused/unused-async.stderr deleted file mode 100644 index 4bcb26dc1..000000000 --- a/src/test/ui/lint/unused/unused-async.stderr +++ /dev/null @@ -1,55 +0,0 @@ -error: unused implementer of `Future` that must be used - --> $DIR/unused-async.rs:31:5 - | -LL | foo(); - | ^^^^^ - | - = note: futures do nothing unless you `.await` or poll them -note: the lint level is defined here - --> $DIR/unused-async.rs:2:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused return value of `foo` that must be used - --> $DIR/unused-async.rs:31:5 - | -LL | foo(); - | ^^^^^ - -error: unused output of future returned by `foo` that must be used - --> $DIR/unused-async.rs:33:5 - | -LL | foo().await; - | ^^^^^^^^^^^ - -error: unused implementer of `Future` that must be used - --> $DIR/unused-async.rs:34:5 - | -LL | bar(); - | ^^^^^ - | - = note: futures do nothing unless you `.await` or poll them - -error: unused return value of `bar` that must be used - --> $DIR/unused-async.rs:34:5 - | -LL | bar(); - | ^^^^^ - -error: unused output of future returned by `bar` that must be used - --> $DIR/unused-async.rs:36:5 - | -LL | bar().await; - | ^^^^^^^^^^^ - -error: unused implementer of `Future` that must be used - --> $DIR/unused-async.rs:37:5 - | -LL | baz(); - | ^^^^^ - | - = note: futures do nothing unless you `.await` or poll them - -error: aborting due to 7 previous errors - diff --git a/src/test/ui/lint/unused/unused-attr-duplicate.rs b/src/test/ui/lint/unused/unused-attr-duplicate.rs deleted file mode 100644 index 692617eac..000000000 --- a/src/test/ui/lint/unused/unused-attr-duplicate.rs +++ /dev/null @@ -1,105 +0,0 @@ -// Tests for repeating attribute warnings. -// aux-build:lint_unused_extern_crate.rs -// compile-flags:--test -// Not tested due to extra requirements: -// - panic_handler: needs extra setup -// - target_feature: platform-specific -// - link_section: platform-specific -// - proc_macro, proc_macro_derive, proc_macro_attribute: needs to be a -// proc-macro, and have special handling for mixing. -// - unstable attributes (not going to bother) -// - no_main: extra setup -#![deny(unused_attributes)] -#![crate_name = "unused_attr_duplicate"] -#![crate_name = "unused_attr_duplicate2"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#![recursion_limit = "128"] -#![recursion_limit = "256"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#![type_length_limit = "1048576"] -#![type_length_limit = "1"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#![no_std] -#![no_std] //~ ERROR unused attribute -#![no_implicit_prelude] -#![no_implicit_prelude] //~ ERROR unused attribute -#![windows_subsystem = "console"] -#![windows_subsystem = "windows"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#![no_builtins] -#![no_builtins] //~ ERROR unused attribute - -#[no_link] -#[no_link] //~ ERROR unused attribute -extern crate lint_unused_extern_crate; - -#[macro_use] -#[macro_use] //~ ERROR unused attribute -pub mod m { - #[macro_export] - #[macro_export] //~ ERROR unused attribute - macro_rules! foo { - () => {}; - } -} - -#[path = "auxiliary/lint_unused_extern_crate.rs"] -#[path = "bar.rs"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -pub mod from_path; - -#[test] -#[ignore] -#[ignore = "some text"] //~ ERROR unused attribute -#[should_panic] -#[should_panic(expected = "values don't match")] //~ ERROR unused attribute -//~^ WARN this was previously accepted -fn t1() {} - -#[must_use] -#[must_use = "some message"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -// No warnings for #[repr], would require more logic. -#[repr(C)] -#[repr(C)] -#[non_exhaustive] -#[non_exhaustive] //~ ERROR unused attribute -pub struct X; - -#[automatically_derived] -#[automatically_derived] //~ ERROR unused attribute -impl X {} - -#[inline(always)] -#[inline(never)] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#[cold] -#[cold] //~ ERROR unused attribute -#[track_caller] -#[track_caller] //~ ERROR unused attribute -pub fn xyz() {} - -// No warnings for #[link], would require more logic. -#[link(name = "rust_test_helpers", kind = "static")] -#[link(name = "rust_test_helpers", kind = "static")] -extern "C" { - #[link_name = "this_does_not_exist"] //~ ERROR unused attribute - //~^ WARN this was previously accepted - #[link_name = "rust_dbg_extern_identity_u32"] - pub fn name_in_rust(v: u32) -> u32; -} - -#[export_name = "exported_symbol_name"] //~ ERROR unused attribute -//~^ WARN this was previously accepted -#[export_name = "exported_symbol_name2"] -pub fn export_test() {} - -#[no_mangle] -#[no_mangle] //~ ERROR unused attribute -pub fn no_mangle_test() {} - -#[used] -#[used] //~ ERROR unused attribute -static FOO: u32 = 0; - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-attr-duplicate.stderr b/src/test/ui/lint/unused/unused-attr-duplicate.stderr deleted file mode 100644 index 769b17487..000000000 --- a/src/test/ui/lint/unused/unused-attr-duplicate.stderr +++ /dev/null @@ -1,293 +0,0 @@ -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:33:1 - | -LL | #[no_link] - | ^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:32:1 - | -LL | #[no_link] - | ^^^^^^^^^^ -note: the lint level is defined here - --> $DIR/unused-attr-duplicate.rs:12:9 - | -LL | #![deny(unused_attributes)] - | ^^^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:37:1 - | -LL | #[macro_use] - | ^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:36:1 - | -LL | #[macro_use] - | ^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:47:1 - | -LL | #[path = "bar.rs"] - | ^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:46:1 - | -LL | #[path = "auxiliary/lint_unused_extern_crate.rs"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:53:1 - | -LL | #[ignore = "some text"] - | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:52:1 - | -LL | #[ignore] - | ^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:55:1 - | -LL | #[should_panic(expected = "values don't match")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:54:1 - | -LL | #[should_panic] - | ^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:60:1 - | -LL | #[must_use = "some message"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:59:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:66:1 - | -LL | #[non_exhaustive] - | ^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:65:1 - | -LL | #[non_exhaustive] - | ^^^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:70:1 - | -LL | #[automatically_derived] - | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:69:1 - | -LL | #[automatically_derived] - | ^^^^^^^^^^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:74:1 - | -LL | #[inline(never)] - | ^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:73:1 - | -LL | #[inline(always)] - | ^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:77:1 - | -LL | #[cold] - | ^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:76:1 - | -LL | #[cold] - | ^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:79:1 - | -LL | #[track_caller] - | ^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:78:1 - | -LL | #[track_caller] - | ^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:92:1 - | -LL | #[export_name = "exported_symbol_name"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:94:1 - | -LL | #[export_name = "exported_symbol_name2"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:98:1 - | -LL | #[no_mangle] - | ^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:97:1 - | -LL | #[no_mangle] - | ^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:102:1 - | -LL | #[used] - | ^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:101:1 - | -LL | #[used] - | ^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:86:5 - | -LL | #[link_name = "this_does_not_exist"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:88:5 - | -LL | #[link_name = "rust_dbg_extern_identity_u32"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:14:1 - | -LL | #![crate_name = "unused_attr_duplicate2"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:13:1 - | -LL | #![crate_name = "unused_attr_duplicate"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:17:1 - | -LL | #![recursion_limit = "256"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:16:1 - | -LL | #![recursion_limit = "128"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:20:1 - | -LL | #![type_length_limit = "1"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:19:1 - | -LL | #![type_length_limit = "1048576"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:23:1 - | -LL | #![no_std] - | ^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:22:1 - | -LL | #![no_std] - | ^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:25:1 - | -LL | #![no_implicit_prelude] - | ^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:24:1 - | -LL | #![no_implicit_prelude] - | ^^^^^^^^^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:27:1 - | -LL | #![windows_subsystem = "windows"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:26:1 - | -LL | #![windows_subsystem = "console"] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:30:1 - | -LL | #![no_builtins] - | ^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:29:1 - | -LL | #![no_builtins] - | ^^^^^^^^^^^^^^^ - -error: unused attribute - --> $DIR/unused-attr-duplicate.rs:40:5 - | -LL | #[macro_export] - | ^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/unused-attr-duplicate.rs:39:5 - | -LL | #[macro_export] - | ^^^^^^^^^^^^^^^ - -error: aborting due to 23 previous errors - diff --git a/src/test/ui/lint/unused/unused-attr-macro-rules.rs b/src/test/ui/lint/unused/unused-attr-macro-rules.rs deleted file mode 100644 index c0fc280ab..000000000 --- a/src/test/ui/lint/unused/unused-attr-macro-rules.rs +++ /dev/null @@ -1,33 +0,0 @@ -#![deny(unused_attributes)] -// Unused attributes on macro_rules requires special handling since the -// macro_rules definition does not survive towards HIR. - -// A sample of various built-in attributes. -#[macro_export] -#[macro_use] //~ ERROR `#[macro_use]` only has an effect -#[path="foo"] //~ ERROR #[path]` only has an effect -#[recursion_limit="1"] //~ ERROR crate-level attribute should be an inner attribute -macro_rules! foo { - () => {}; -} - -// The following should not warn about unused attributes. -#[allow(unused)] -macro_rules! foo2 { - () => {}; -} - -#[cfg(FALSE)] -macro_rules! foo { - () => {}; -} - -/// Some docs -#[deprecated] -#[doc = "more docs"] -#[macro_export] -macro_rules! bar { - () => {}; -} - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-attr-macro-rules.stderr b/src/test/ui/lint/unused/unused-attr-macro-rules.stderr deleted file mode 100644 index e3ca90d9a..000000000 --- a/src/test/ui/lint/unused/unused-attr-macro-rules.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: `#[macro_use]` only has an effect on `extern crate` and modules - --> $DIR/unused-attr-macro-rules.rs:7:1 - | -LL | #[macro_use] - | ^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-attr-macro-rules.rs:1:9 - | -LL | #![deny(unused_attributes)] - | ^^^^^^^^^^^^^^^^^ - -error: `#[path]` only has an effect on modules - --> $DIR/unused-attr-macro-rules.rs:8:1 - | -LL | #[path="foo"] - | ^^^^^^^^^^^^^ - -error: crate-level attribute should be an inner attribute: add an exclamation mark: `#![foo]` - --> $DIR/unused-attr-macro-rules.rs:9:1 - | -LL | #[recursion_limit="1"] - | ^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-closure.rs b/src/test/ui/lint/unused/unused-closure.rs deleted file mode 100644 index c96c90731..000000000 --- a/src/test/ui/lint/unused/unused-closure.rs +++ /dev/null @@ -1,35 +0,0 @@ -// Test that closures and generators are "must use" types. -// edition:2018 - -#![feature(async_closure)] -#![feature(generators)] -#![deny(unused_must_use)] - -fn unused() { - || { //~ ERROR unused closure that must be used - println!("Hello!"); - }; - - async {}; //~ ERROR unused implementer of `Future` that must be used - || async {}; //~ ERROR unused closure that must be used - async || {}; //~ ERROR unused closure that must be used - - - [Box::new([|| {}; 10]); 1]; //~ ERROR unused array of boxed arrays of closures that must be used - - vec![|| "a"].pop().unwrap(); //~ ERROR unused closure that must be used - - let b = false; - || true; //~ ERROR unused closure that must be used - println!("{}", b); -} - -fn ignored() { - let _ = || {}; - let _ = || yield 42; -} - -fn main() { - unused(); - ignored(); -} diff --git a/src/test/ui/lint/unused/unused-closure.stderr b/src/test/ui/lint/unused/unused-closure.stderr deleted file mode 100644 index c3a82402e..000000000 --- a/src/test/ui/lint/unused/unused-closure.stderr +++ /dev/null @@ -1,65 +0,0 @@ -error: unused closure that must be used - --> $DIR/unused-closure.rs:9:5 - | -LL | / || { -LL | | println!("Hello!"); -LL | | }; - | |_____^ - | - = note: closures are lazy and do nothing unless called -note: the lint level is defined here - --> $DIR/unused-closure.rs:6:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused implementer of `Future` that must be used - --> $DIR/unused-closure.rs:13:5 - | -LL | async {}; - | ^^^^^^^^ - | - = note: futures do nothing unless you `.await` or poll them - -error: unused closure that must be used - --> $DIR/unused-closure.rs:14:5 - | -LL | || async {}; - | ^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused closure that must be used - --> $DIR/unused-closure.rs:15:5 - | -LL | async || {}; - | ^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused array of boxed arrays of closures that must be used - --> $DIR/unused-closure.rs:18:5 - | -LL | [Box::new([|| {}; 10]); 1]; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused closure that must be used - --> $DIR/unused-closure.rs:20:5 - | -LL | vec![|| "a"].pop().unwrap(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: unused closure that must be used - --> $DIR/unused-closure.rs:23:9 - | -LL | || true; - | ^^^^^^^ - | - = note: closures are lazy and do nothing unless called - -error: aborting due to 7 previous errors - diff --git a/src/test/ui/lint/unused/unused-doc-comments-edge-cases.rs b/src/test/ui/lint/unused/unused-doc-comments-edge-cases.rs deleted file mode 100644 index 54d86c31f..000000000 --- a/src/test/ui/lint/unused/unused-doc-comments-edge-cases.rs +++ /dev/null @@ -1,46 +0,0 @@ -#![deny(unused_doc_comments)] - -fn doc_comment_on_match_arms(num: u8) -> bool { - match num { - 3 => true, - /// useless doc comment - //~^ ERROR: unused doc comment - _ => false, - } -} - -fn doc_comment_between_if_else(num: u8) -> bool { - if num == 3 { - true //~ ERROR: mismatched types - } - /// useless doc comment - else { //~ ERROR: expected expression, found keyword `else` - false - } -} - -fn doc_comment_on_expr(num: u8) -> bool { - /// useless doc comment - //~^ ERROR: attributes on expressions are experimental - //~| ERROR: unused doc comment - num == 3 -} - -fn doc_comment_on_generic<#[doc = "x"] T>(val: T) {} -//~^ ERROR: unused doc comment - -fn doc_comment_on_block() { - /// unused doc comment - //~^ ERROR: unused doc comment - { - let x = 12; - } -} - -/// unused doc comment -//~^ ERROR: unused doc comment -extern "C" { - fn foo(); -} - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-doc-comments-edge-cases.stderr b/src/test/ui/lint/unused/unused-doc-comments-edge-cases.stderr deleted file mode 100644 index 078b780d8..000000000 --- a/src/test/ui/lint/unused/unused-doc-comments-edge-cases.stderr +++ /dev/null @@ -1,95 +0,0 @@ -error: expected expression, found keyword `else` - --> $DIR/unused-doc-comments-edge-cases.rs:17:5 - | -LL | else { - | ^^^^ expected expression - -error[E0658]: attributes on expressions are experimental - --> $DIR/unused-doc-comments-edge-cases.rs:23:5 - | -LL | /// useless doc comment - | ^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: see issue #15701 <https://github.com/rust-lang/rust/issues/15701> for more information - = help: add `#![feature(stmt_expr_attributes)]` to the crate attributes to enable - = help: `///` is for documentation comments. For a plain comment, use `//`. - -error: unused doc comment - --> $DIR/unused-doc-comments-edge-cases.rs:6:9 - | -LL | /// useless doc comment - | ^^^^^^^^^^^^^^^^^^^^^^^ -LL | -LL | _ => false, - | ---------- rustdoc does not generate documentation for match arms - | - = help: use `//` for a plain comment -note: the lint level is defined here - --> $DIR/unused-doc-comments-edge-cases.rs:1:9 - | -LL | #![deny(unused_doc_comments)] - | ^^^^^^^^^^^^^^^^^^^ - -error: unused doc comment - --> $DIR/unused-doc-comments-edge-cases.rs:23:5 - | -LL | /// useless doc comment - | ^^^^^^^^^^^^^^^^^^^^^^^ -... -LL | num == 3 - | --- rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/unused-doc-comments-edge-cases.rs:29:27 - | -LL | fn doc_comment_on_generic<#[doc = "x"] T>(val: T) {} - | ^^^^^^^^^^^^ - rustdoc does not generate documentation for generic parameters - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/unused-doc-comments-edge-cases.rs:33:5 - | -LL | /// unused doc comment - | ^^^^^^^^^^^^^^^^^^^^^^ -LL | -LL | / { -LL | | let x = 12; -LL | | } - | |_____- rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/unused-doc-comments-edge-cases.rs:40:1 - | -LL | /// unused doc comment - | ^^^^^^^^^^^^^^^^^^^^^^ -LL | -LL | / extern "C" { -LL | | fn foo(); -LL | | } - | |_- rustdoc does not generate documentation for extern blocks - | - = help: use `//` for a plain comment - -error[E0308]: mismatched types - --> $DIR/unused-doc-comments-edge-cases.rs:14:9 - | -LL | / if num == 3 { -LL | | true - | | ^^^^ expected `()`, found `bool` -LL | | } - | |_____- expected this to be `()` - | -help: you might have meant to return this value - | -LL | return true; - | ++++++ + - -error: aborting due to 8 previous errors - -Some errors have detailed explanations: E0308, E0658. -For more information about an error, try `rustc --explain E0308`. diff --git a/src/test/ui/lint/unused/unused-doc-comments-for-macros.rs b/src/test/ui/lint/unused/unused-doc-comments-for-macros.rs deleted file mode 100644 index 05828ebb2..000000000 --- a/src/test/ui/lint/unused/unused-doc-comments-for-macros.rs +++ /dev/null @@ -1,17 +0,0 @@ -#![deny(unused_doc_comments)] -#![feature(rustc_attrs)] - -macro_rules! foo { () => {}; } - -fn main() { - /// line1 //~ ERROR: unused doc comment - /// line2 - /// line3 - foo!(); - - // Ensure we still detect another doc-comment block. - /// line1 //~ ERROR: unused doc comment - /// line2 - /// line3 - foo!(); -} diff --git a/src/test/ui/lint/unused/unused-doc-comments-for-macros.stderr b/src/test/ui/lint/unused/unused-doc-comments-for-macros.stderr deleted file mode 100644 index 26b1c2b05..000000000 --- a/src/test/ui/lint/unused/unused-doc-comments-for-macros.stderr +++ /dev/null @@ -1,31 +0,0 @@ -error: unused doc comment - --> $DIR/unused-doc-comments-for-macros.rs:7:5 - | -LL | / /// line1 -LL | | /// line2 -LL | | /// line3 - | |_____--------^ - | | - | rustdoc does not generate documentation for macro invocations - | - = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion -note: the lint level is defined here - --> $DIR/unused-doc-comments-for-macros.rs:1:9 - | -LL | #![deny(unused_doc_comments)] - | ^^^^^^^^^^^^^^^^^^^ - -error: unused doc comment - --> $DIR/unused-doc-comments-for-macros.rs:13:5 - | -LL | / /// line1 -LL | | /// line2 -LL | | /// line3 - | |_____--------^ - | | - | rustdoc does not generate documentation for macro invocations - | - = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion - -error: aborting due to 2 previous errors - diff --git a/src/test/ui/lint/unused/unused-macro-rules-compile-error.rs b/src/test/ui/lint/unused/unused-macro-rules-compile-error.rs deleted file mode 100644 index 4d51db89b..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-compile-error.rs +++ /dev/null @@ -1,27 +0,0 @@ -#![deny(unused_macro_rules)] -// To make sure we are not hitting this -#![deny(unused_macros)] - -macro_rules! num { - (one) => { 1 }; - // Most simple (and common) case - (two) => { compile_error!("foo"); }; - // Some nested use - (two_) => { foo(compile_error!("foo")); }; - (three) => { 3 }; - (four) => { 4 }; //~ ERROR: rule of macro -} -const _NUM: u8 = num!(one) + num!(three); - -// compile_error not used as a macro invocation -macro_rules! num2 { - (one) => { 1 }; - // Only identifier present - (two) => { fn compile_error() {} }; //~ ERROR: rule of macro - // Only identifier and bang present - (two_) => { compile_error! }; //~ ERROR: rule of macro - (three) => { 3 }; -} -const _NUM2: u8 = num2!(one) + num2!(three); - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-macro-rules-compile-error.stderr b/src/test/ui/lint/unused/unused-macro-rules-compile-error.stderr deleted file mode 100644 index 76af8c967..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-compile-error.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: 5th rule of macro `num` is never used - --> $DIR/unused-macro-rules-compile-error.rs:12:5 - | -LL | (four) => { 4 }; - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macro-rules-compile-error.rs:1:9 - | -LL | #![deny(unused_macro_rules)] - | ^^^^^^^^^^^^^^^^^^ - -error: 3rd rule of macro `num2` is never used - --> $DIR/unused-macro-rules-compile-error.rs:22:5 - | -LL | (two_) => { compile_error! }; - | ^^^^^^ - -error: 2nd rule of macro `num2` is never used - --> $DIR/unused-macro-rules-compile-error.rs:20:5 - | -LL | (two) => { fn compile_error() {} }; - | ^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-macro-rules-decl.rs b/src/test/ui/lint/unused/unused-macro-rules-decl.rs deleted file mode 100644 index 537c84940..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-decl.rs +++ /dev/null @@ -1,49 +0,0 @@ -#![feature(decl_macro)] -#![deny(unused_macro_rules)] -// To make sure we are not hitting this -#![deny(unused_macros)] - -// Most simple case -macro num { - (one) => { 1 }, - (two) => { 2 }, //~ ERROR: 2nd rule of macro - (three) => { 3 }, - (four) => { 4 }, //~ ERROR: 4th rule of macro -} -const _NUM: u8 = num!(one) + num!(three); - -// Check that allowing the lint works -#[allow(unused_macro_rules)] -macro num_allowed { - (one) => { 1 }, - (two) => { 2 }, - (three) => { 3 }, - (four) => { 4 }, -} -const _NUM_ALLOWED: u8 = num_allowed!(one) + num_allowed!(three); - -// Check that macro calls inside the macro trigger as usage -macro num_rec { - (one) => { 1 }, - (two) => { - num_rec!(one) + num_rec!(one) - }, - (three) => { //~ ERROR: 3rd rule of macro - num_rec!(one) + num_rec!(two) - }, - (four) => { - num_rec!(two) + num_rec!(two) - }, -} -const _NUM_RECURSIVE: u8 = num_rec!(four); - -// No error if the macro is public -pub macro num_public { - (one) => { 1 }, - (two) => { 2 }, - (three) => { 3 }, - (four) => { 4 }, -} -const _NUM_PUBLIC: u8 = num_public!(one) + num_public!(three); - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-macro-rules-decl.stderr b/src/test/ui/lint/unused/unused-macro-rules-decl.stderr deleted file mode 100644 index 4d9b22fed..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-decl.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: 4th rule of macro `num` is never used - --> $DIR/unused-macro-rules-decl.rs:11:5 - | -LL | (four) => { 4 }, - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macro-rules-decl.rs:2:9 - | -LL | #![deny(unused_macro_rules)] - | ^^^^^^^^^^^^^^^^^^ - -error: 2nd rule of macro `num` is never used - --> $DIR/unused-macro-rules-decl.rs:9:5 - | -LL | (two) => { 2 }, - | ^^^^^ - -error: 3rd rule of macro `num_rec` is never used - --> $DIR/unused-macro-rules-decl.rs:31:5 - | -LL | (three) => { - | ^^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.rs b/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.rs deleted file mode 100644 index a826026ec..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.rs +++ /dev/null @@ -1,11 +0,0 @@ -#![deny(unused_macro_rules)] - -macro_rules! foo { - (v) => {}; - (w) => {}; - () => 0; //~ ERROR: macro rhs must be delimited -} - -fn main() { - foo!(v); -} diff --git a/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.stderr b/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.stderr deleted file mode 100644 index 797c86710..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules-malformed-rule.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: macro rhs must be delimited - --> $DIR/unused-macro-rules-malformed-rule.rs:6:11 - | -LL | () => 0; - | ^ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/unused-macro-rules.rs b/src/test/ui/lint/unused/unused-macro-rules.rs deleted file mode 100644 index eeaf4d1b0..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules.rs +++ /dev/null @@ -1,47 +0,0 @@ -#![deny(unused_macro_rules)] -// To make sure we are not hitting this -#![deny(unused_macros)] - -// Most simple case -macro_rules! num { - (one) => { 1 }; - (two) => { 2 }; //~ ERROR: 2nd rule of macro - (three) => { 3 }; - (four) => { 4 }; //~ ERROR: 4th rule of macro -} -const _NUM: u8 = num!(one) + num!(three); - -// Check that allowing the lint works -#[allow(unused_macro_rules)] -macro_rules! num_allowed { - (one) => { 1 }; - (two) => { 2 }; - (three) => { 3 }; - (four) => { 4 }; -} -const _NUM_ALLOWED: u8 = num_allowed!(one) + num_allowed!(three); - -// Check that macro calls inside the macro trigger as usage -macro_rules! num_rec { - (one) => { 1 }; - (two) => { - num_rec!(one) + num_rec!(one) - }; - (three) => { //~ ERROR: 3rd rule of macro - num_rec!(one) + num_rec!(two) - }; - (four) => { num_rec!(two) + num_rec!(two) }; -} -const _NUM_RECURSIVE: u8 = num_rec!(four); - -// No error if the macro is being exported -#[macro_export] -macro_rules! num_exported { - (one) => { 1 }; - (two) => { 2 }; - (three) => { 3 }; - (four) => { 4 }; -} -const _NUM_EXPORTED: u8 = num_exported!(one) + num_exported!(three); - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-macro-rules.stderr b/src/test/ui/lint/unused/unused-macro-rules.stderr deleted file mode 100644 index 2b3098a51..000000000 --- a/src/test/ui/lint/unused/unused-macro-rules.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: 4th rule of macro `num` is never used - --> $DIR/unused-macro-rules.rs:10:5 - | -LL | (four) => { 4 }; - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macro-rules.rs:1:9 - | -LL | #![deny(unused_macro_rules)] - | ^^^^^^^^^^^^^^^^^^ - -error: 2nd rule of macro `num` is never used - --> $DIR/unused-macro-rules.rs:8:5 - | -LL | (two) => { 2 }; - | ^^^^^ - -error: 3rd rule of macro `num_rec` is never used - --> $DIR/unused-macro-rules.rs:30:5 - | -LL | (three) => { - | ^^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.rs b/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.rs deleted file mode 100644 index ce187047b..000000000 --- a/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.rs +++ /dev/null @@ -1,9 +0,0 @@ -#![allow(unused_macros)] - -// Issue #21370 - -macro_rules! test { - ($wrong:t_ty) => () //~ ERROR invalid fragment specifier `t_ty` -} - -fn main() { } diff --git a/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.stderr b/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.stderr deleted file mode 100644 index 6edf0a2cf..000000000 --- a/src/test/ui/lint/unused/unused-macro-with-bad-frag-spec.stderr +++ /dev/null @@ -1,10 +0,0 @@ -error: invalid fragment specifier `t_ty` - --> $DIR/unused-macro-with-bad-frag-spec.rs:6:6 - | -LL | ($wrong:t_ty) => () - | ^^^^^^^^^^^ - | - = help: valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis` - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/unused-macro-with-follow-violation.rs b/src/test/ui/lint/unused/unused-macro-with-follow-violation.rs deleted file mode 100644 index 1666dae69..000000000 --- a/src/test/ui/lint/unused/unused-macro-with-follow-violation.rs +++ /dev/null @@ -1,7 +0,0 @@ -#![allow(unused_macros)] - -macro_rules! test { - ($e:expr +) => () //~ ERROR not allowed for `expr` fragments -} - -fn main() { } diff --git a/src/test/ui/lint/unused/unused-macro-with-follow-violation.stderr b/src/test/ui/lint/unused/unused-macro-with-follow-violation.stderr deleted file mode 100644 index 5eced4f06..000000000 --- a/src/test/ui/lint/unused/unused-macro-with-follow-violation.stderr +++ /dev/null @@ -1,10 +0,0 @@ -error: `$e:expr` is followed by `+`, which is not allowed for `expr` fragments - --> $DIR/unused-macro-with-follow-violation.rs:4:14 - | -LL | ($e:expr +) => () - | ^ not allowed after `expr` fragments - | - = note: allowed there are: `=>`, `,` or `;` - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/unused-macros-decl.rs b/src/test/ui/lint/unused/unused-macros-decl.rs deleted file mode 100644 index 21f6108b1..000000000 --- a/src/test/ui/lint/unused/unused-macros-decl.rs +++ /dev/null @@ -1,28 +0,0 @@ -#![feature(decl_macro)] -#![deny(unused_macros)] -// To make sure we are not hitting this -#![deny(unused_macro_rules)] - -// Most simple case -macro unused { //~ ERROR: unused macro definition - () => {} -} - -#[allow(unused_macros)] -mod bar { - // Test that putting the #[deny] close to the macro's definition - // works. - - #[deny(unused_macros)] - macro unused { //~ ERROR: unused macro definition - () => {} - } -} - -mod boo { - pub(crate) macro unused { //~ ERROR: unused macro definition - () => {} - } -} - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-macros-decl.stderr b/src/test/ui/lint/unused/unused-macros-decl.stderr deleted file mode 100644 index 1f426b9d9..000000000 --- a/src/test/ui/lint/unused/unused-macros-decl.stderr +++ /dev/null @@ -1,32 +0,0 @@ -error: unused macro definition: `unused` - --> $DIR/unused-macros-decl.rs:7:7 - | -LL | macro unused { - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macros-decl.rs:2:9 - | -LL | #![deny(unused_macros)] - | ^^^^^^^^^^^^^ - -error: unused macro definition: `unused` - --> $DIR/unused-macros-decl.rs:17:11 - | -LL | macro unused { - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macros-decl.rs:16:12 - | -LL | #[deny(unused_macros)] - | ^^^^^^^^^^^^^ - -error: unused macro definition: `unused` - --> $DIR/unused-macros-decl.rs:23:22 - | -LL | pub(crate) macro unused { - | ^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-macros-malformed-rule.rs b/src/test/ui/lint/unused/unused-macros-malformed-rule.rs deleted file mode 100644 index d4c35fad9..000000000 --- a/src/test/ui/lint/unused/unused-macros-malformed-rule.rs +++ /dev/null @@ -1,15 +0,0 @@ -#![deny(unused_macros)] - -macro_rules! foo { //~ ERROR: unused macro definition - (v) => {}; - () => 0; //~ ERROR: macro rhs must be delimited -} - -macro_rules! bar { - (v) => {}; - () => 0; //~ ERROR: macro rhs must be delimited -} - -fn main() { - bar!(v); -} diff --git a/src/test/ui/lint/unused/unused-macros-malformed-rule.stderr b/src/test/ui/lint/unused/unused-macros-malformed-rule.stderr deleted file mode 100644 index 9a880dccf..000000000 --- a/src/test/ui/lint/unused/unused-macros-malformed-rule.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: macro rhs must be delimited - --> $DIR/unused-macros-malformed-rule.rs:5:11 - | -LL | () => 0; - | ^ - -error: macro rhs must be delimited - --> $DIR/unused-macros-malformed-rule.rs:10:11 - | -LL | () => 0; - | ^ - -error: unused macro definition: `foo` - --> $DIR/unused-macros-malformed-rule.rs:3:14 - | -LL | macro_rules! foo { - | ^^^ - | -note: the lint level is defined here - --> $DIR/unused-macros-malformed-rule.rs:1:9 - | -LL | #![deny(unused_macros)] - | ^^^^^^^^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-macros.rs b/src/test/ui/lint/unused/unused-macros.rs deleted file mode 100644 index 70b50b208..000000000 --- a/src/test/ui/lint/unused/unused-macros.rs +++ /dev/null @@ -1,31 +0,0 @@ -#![deny(unused_macros)] -// To make sure we are not hitting this -#![deny(unused_macro_rules)] - -// Most simple case -macro_rules! unused { //~ ERROR: unused macro definition - () => {}; -} - -// Test macros created by macros -macro_rules! create_macro { - () => { - macro_rules! m { //~ ERROR: unused macro definition - () => {}; - } - }; -} -create_macro!(); - -#[allow(unused_macros)] -mod bar { - // Test that putting the #[deny] close to the macro's definition - // works. - - #[deny(unused_macros)] - macro_rules! unused { //~ ERROR: unused macro definition - () => {}; - } -} - -fn main() {} diff --git a/src/test/ui/lint/unused/unused-macros.stderr b/src/test/ui/lint/unused/unused-macros.stderr deleted file mode 100644 index d0baf5bec..000000000 --- a/src/test/ui/lint/unused/unused-macros.stderr +++ /dev/null @@ -1,32 +0,0 @@ -error: unused macro definition: `unused` - --> $DIR/unused-macros.rs:6:14 - | -LL | macro_rules! unused { - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macros.rs:1:9 - | -LL | #![deny(unused_macros)] - | ^^^^^^^^^^^^^ - -error: unused macro definition: `m` - --> $DIR/unused-macros.rs:13:22 - | -LL | macro_rules! m { - | ^ - -error: unused macro definition: `unused` - --> $DIR/unused-macros.rs:26:18 - | -LL | macro_rules! unused { - | ^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-macros.rs:25:12 - | -LL | #[deny(unused_macros)] - | ^^^^^^^^^^^^^ - -error: aborting due to 3 previous errors - diff --git a/src/test/ui/lint/unused/unused-mut-warning-captured-var.fixed b/src/test/ui/lint/unused/unused-mut-warning-captured-var.fixed deleted file mode 100644 index c21f18015..000000000 --- a/src/test/ui/lint/unused/unused-mut-warning-captured-var.fixed +++ /dev/null @@ -1,9 +0,0 @@ -// run-rustfix - -#![forbid(unused_mut)] - -fn main() { - let x = 1; - //~^ ERROR: variable does not need to be mutable - (move|| { println!("{}", x); })(); -} diff --git a/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs b/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs deleted file mode 100644 index 3119d83a0..000000000 --- a/src/test/ui/lint/unused/unused-mut-warning-captured-var.rs +++ /dev/null @@ -1,9 +0,0 @@ -// run-rustfix - -#![forbid(unused_mut)] - -fn main() { - let mut x = 1; - //~^ ERROR: variable does not need to be mutable - (move|| { println!("{}", x); })(); -} diff --git a/src/test/ui/lint/unused/unused-mut-warning-captured-var.stderr b/src/test/ui/lint/unused/unused-mut-warning-captured-var.stderr deleted file mode 100644 index 20aeedcc2..000000000 --- a/src/test/ui/lint/unused/unused-mut-warning-captured-var.stderr +++ /dev/null @@ -1,16 +0,0 @@ -error: variable does not need to be mutable - --> $DIR/unused-mut-warning-captured-var.rs:6:9 - | -LL | let mut x = 1; - | ----^ - | | - | help: remove this `mut` - | -note: the lint level is defined here - --> $DIR/unused-mut-warning-captured-var.rs:3:11 - | -LL | #![forbid(unused_mut)] - | ^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/unused-result.rs b/src/test/ui/lint/unused/unused-result.rs deleted file mode 100644 index e283eaa88..000000000 --- a/src/test/ui/lint/unused/unused-result.rs +++ /dev/null @@ -1,42 +0,0 @@ -#![allow(dead_code)] -#![deny(unused_results, unused_must_use)] -//~^ NOTE: the lint level is defined here -//~| NOTE: the lint level is defined here - -#[must_use] -enum MustUse { Test } - -#[must_use = "some message"] -enum MustUseMsg { Test2 } - -fn foo<T>() -> T { panic!() } - -fn bar() -> isize { return foo::<isize>(); } -fn baz() -> MustUse { return foo::<MustUse>(); } -fn qux() -> MustUseMsg { return foo::<MustUseMsg>(); } - -#[allow(unused_results)] -fn test() { - foo::<isize>(); - foo::<MustUse>(); //~ ERROR: unused `MustUse` that must be used - foo::<MustUseMsg>(); //~ ERROR: unused `MustUseMsg` that must be used - //~^ NOTE: some message -} - -#[allow(unused_results, unused_must_use)] -fn test2() { - foo::<isize>(); - foo::<MustUse>(); - foo::<MustUseMsg>(); -} - -fn main() { - foo::<isize>(); //~ ERROR: unused result of type `isize` - foo::<MustUse>(); //~ ERROR: unused `MustUse` that must be used - foo::<MustUseMsg>(); //~ ERROR: unused `MustUseMsg` that must be used - //~^ NOTE: some message - - let _ = foo::<isize>(); - let _ = foo::<MustUse>(); - let _ = foo::<MustUseMsg>(); -} diff --git a/src/test/ui/lint/unused/unused-result.stderr b/src/test/ui/lint/unused/unused-result.stderr deleted file mode 100644 index 4e1ba1fd9..000000000 --- a/src/test/ui/lint/unused/unused-result.stderr +++ /dev/null @@ -1,48 +0,0 @@ -error: unused `MustUse` that must be used - --> $DIR/unused-result.rs:21:5 - | -LL | foo::<MustUse>(); - | ^^^^^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-result.rs:2:25 - | -LL | #![deny(unused_results, unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused `MustUseMsg` that must be used - --> $DIR/unused-result.rs:22:5 - | -LL | foo::<MustUseMsg>(); - | ^^^^^^^^^^^^^^^^^^^ - | - = note: some message - -error: unused result of type `isize` - --> $DIR/unused-result.rs:34:5 - | -LL | foo::<isize>(); - | ^^^^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/unused-result.rs:2:9 - | -LL | #![deny(unused_results, unused_must_use)] - | ^^^^^^^^^^^^^^ - -error: unused `MustUse` that must be used - --> $DIR/unused-result.rs:35:5 - | -LL | foo::<MustUse>(); - | ^^^^^^^^^^^^^^^^ - -error: unused `MustUseMsg` that must be used - --> $DIR/unused-result.rs:36:5 - | -LL | foo::<MustUseMsg>(); - | ^^^^^^^^^^^^^^^^^^^ - | - = note: some message - -error: aborting due to 5 previous errors - diff --git a/src/test/ui/lint/unused/unused-supertrait.rs b/src/test/ui/lint/unused/unused-supertrait.rs deleted file mode 100644 index 64a8e5204..000000000 --- a/src/test/ui/lint/unused/unused-supertrait.rs +++ /dev/null @@ -1,11 +0,0 @@ -#![deny(unused_must_use)] - -fn it() -> impl ExactSizeIterator<Item = ()> { - let x: Box<dyn ExactSizeIterator<Item = ()>> = todo!(); - x -} - -fn main() { - it(); - //~^ ERROR unused implementer of `Iterator` that must be used -} diff --git a/src/test/ui/lint/unused/unused-supertrait.stderr b/src/test/ui/lint/unused/unused-supertrait.stderr deleted file mode 100644 index cb45add9c..000000000 --- a/src/test/ui/lint/unused/unused-supertrait.stderr +++ /dev/null @@ -1,15 +0,0 @@ -error: unused implementer of `Iterator` that must be used - --> $DIR/unused-supertrait.rs:9:5 - | -LL | it(); - | ^^^^ - | - = note: iterators are lazy and do nothing unless consumed -note: the lint level is defined here - --> $DIR/unused-supertrait.rs:1:9 - | -LL | #![deny(unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: aborting due to previous error - diff --git a/src/test/ui/lint/unused/unused_attributes-must_use.rs b/src/test/ui/lint/unused/unused_attributes-must_use.rs deleted file mode 100644 index 51f868706..000000000 --- a/src/test/ui/lint/unused/unused_attributes-must_use.rs +++ /dev/null @@ -1,131 +0,0 @@ -#![allow(dead_code, path_statements)] -#![deny(unused_attributes, unused_must_use)] -#![feature(asm_experimental_arch, stmt_expr_attributes, trait_alias)] - -#[must_use] //~ ERROR `#[must_use]` has no effect -extern crate std as std2; - -#[must_use] //~ ERROR `#[must_use]` has no effect -mod test_mod {} - -#[must_use] //~ ERROR `#[must_use]` has no effect -use std::arch::global_asm; - -#[must_use] //~ ERROR `#[must_use]` has no effect -const CONST: usize = 4; -#[must_use] //~ ERROR `#[must_use]` has no effect -#[no_mangle] -static STATIC: usize = 4; - -#[must_use] -struct X; - -#[must_use] -enum Y { - Z, -} - -#[must_use] -union U { - unit: (), -} - -#[must_use] //~ ERROR `#[must_use]` has no effect -impl U { - #[must_use] - fn method() -> i32 { - 4 - } -} - -#[must_use] -#[no_mangle] -fn foo() -> i64 { - 4 -} - -#[must_use] //~ ERROR `#[must_use]` has no effect -extern "Rust" { - #[link_name = "STATIC"] - #[must_use] //~ ERROR `#[must_use]` has no effect - static FOREIGN_STATIC: usize; - - #[link_name = "foo"] - #[must_use] - fn foreign_foo() -> i64; -} - -#[must_use] //~ ERROR unused attribute -global_asm!(""); - -#[must_use] //~ ERROR `#[must_use]` has no effect -type UseMe = (); - -fn qux<#[must_use] T>(_: T) {} //~ ERROR `#[must_use]` has no effect - -#[must_use] -trait Use { - #[must_use] //~ ERROR `#[must_use]` has no effect - const ASSOC_CONST: usize = 4; - #[must_use] //~ ERROR `#[must_use]` has no effect - type AssocTy; - - #[must_use] - fn get_four(&self) -> usize { - 4 - } -} - -#[must_use] //~ ERROR `#[must_use]` has no effect -impl Use for () { - type AssocTy = (); -} - -#[must_use] //~ ERROR `#[must_use]` has no effect -trait Alias = Use; - -#[must_use] //~ ERROR `#[must_use]` has no effect -macro_rules! cool_macro { - () => { - 4 - }; -} - -fn main() { - #[must_use] //~ ERROR `#[must_use]` has no effect - let x = || {}; - x(); - - let x = #[must_use] //~ ERROR `#[must_use]` has no effect - || {}; - x(); - - X; //~ ERROR that must be used - Y::Z; //~ ERROR that must be used - U { unit: () }; //~ ERROR that must be used - U::method(); //~ ERROR that must be used - foo(); //~ ERROR that must be used - - unsafe { - foreign_foo(); //~ ERROR that must be used - }; - - CONST; - STATIC; - unsafe { FOREIGN_STATIC }; - cool_macro!(); - qux(4); - ().get_four(); //~ ERROR that must be used - - match Some(4) { - #[must_use] //~ ERROR `#[must_use]` has no effect - Some(res) => res, - None => 0, - }; - - struct PatternField { - foo: i32, - } - let s = PatternField { #[must_use] foo: 123 }; //~ ERROR `#[must_use]` has no effect - let PatternField { #[must_use] foo } = s; //~ ERROR `#[must_use]` has no effect -} diff --git a/src/test/ui/lint/unused/unused_attributes-must_use.stderr b/src/test/ui/lint/unused/unused_attributes-must_use.stderr deleted file mode 100644 index 0f699429e..000000000 --- a/src/test/ui/lint/unused/unused_attributes-must_use.stderr +++ /dev/null @@ -1,187 +0,0 @@ -error: unused attribute `must_use` - --> $DIR/unused_attributes-must_use.rs:58:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - | -note: the built-in attribute `must_use` will be ignored, since it's applied to the macro invocation `global_asm` - --> $DIR/unused_attributes-must_use.rs:59:1 - | -LL | global_asm!(""); - | ^^^^^^^^^^ -note: the lint level is defined here - --> $DIR/unused_attributes-must_use.rs:2:9 - | -LL | #![deny(unused_attributes, unused_must_use)] - | ^^^^^^^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an extern crate - --> $DIR/unused_attributes-must_use.rs:5:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a module - --> $DIR/unused_attributes-must_use.rs:8:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a use - --> $DIR/unused_attributes-must_use.rs:11:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a constant item - --> $DIR/unused_attributes-must_use.rs:14:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a static item - --> $DIR/unused_attributes-must_use.rs:16:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an implementation block - --> $DIR/unused_attributes-must_use.rs:33:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a foreign module - --> $DIR/unused_attributes-must_use.rs:47:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a type alias - --> $DIR/unused_attributes-must_use.rs:61:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a type parameter - --> $DIR/unused_attributes-must_use.rs:64:8 - | -LL | fn qux<#[must_use] T>(_: T) {} - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an implementation block - --> $DIR/unused_attributes-must_use.rs:79:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a trait alias - --> $DIR/unused_attributes-must_use.rs:84:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a macro def - --> $DIR/unused_attributes-must_use.rs:87:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a statement - --> $DIR/unused_attributes-must_use.rs:95:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a closure - --> $DIR/unused_attributes-must_use.rs:99:13 - | -LL | let x = #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an match arm - --> $DIR/unused_attributes-must_use.rs:121:9 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a struct field - --> $DIR/unused_attributes-must_use.rs:129:28 - | -LL | let s = PatternField { #[must_use] foo: 123 }; - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a pattern field - --> $DIR/unused_attributes-must_use.rs:130:24 - | -LL | let PatternField { #[must_use] foo } = s; - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an associated const - --> $DIR/unused_attributes-must_use.rs:68:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to an associated type - --> $DIR/unused_attributes-must_use.rs:70:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: `#[must_use]` has no effect when applied to a foreign static item - --> $DIR/unused_attributes-must_use.rs:50:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ - -error: unused `X` that must be used - --> $DIR/unused_attributes-must_use.rs:103:5 - | -LL | X; - | ^ - | -note: the lint level is defined here - --> $DIR/unused_attributes-must_use.rs:2:28 - | -LL | #![deny(unused_attributes, unused_must_use)] - | ^^^^^^^^^^^^^^^ - -error: unused `Y` that must be used - --> $DIR/unused_attributes-must_use.rs:104:5 - | -LL | Y::Z; - | ^^^^ - -error: unused `U` that must be used - --> $DIR/unused_attributes-must_use.rs:105:5 - | -LL | U { unit: () }; - | ^^^^^^^^^^^^^^ - -error: unused return value of `U::method` that must be used - --> $DIR/unused_attributes-must_use.rs:106:5 - | -LL | U::method(); - | ^^^^^^^^^^^ - -error: unused return value of `foo` that must be used - --> $DIR/unused_attributes-must_use.rs:107:5 - | -LL | foo(); - | ^^^^^ - -error: unused return value of `foreign_foo` that must be used - --> $DIR/unused_attributes-must_use.rs:110:9 - | -LL | foreign_foo(); - | ^^^^^^^^^^^^^ - -error: unused return value of `Use::get_four` that must be used - --> $DIR/unused_attributes-must_use.rs:118:5 - | -LL | ().get_four(); - | ^^^^^^^^^^^^^ - -error: aborting due to 28 previous errors - diff --git a/src/test/ui/lint/unused/useless-comment.rs b/src/test/ui/lint/unused/useless-comment.rs deleted file mode 100644 index 7d2e5ab6f..000000000 --- a/src/test/ui/lint/unused/useless-comment.rs +++ /dev/null @@ -1,45 +0,0 @@ -#![feature(stmt_expr_attributes)] - -#![deny(unused_doc_comments)] - -macro_rules! mac { - () => {} -} - -/// foo //~ ERROR unused doc comment -mac!(); - -fn foo() { - /// a //~ ERROR unused doc comment - let x = 12; - - /// multi-line //~ unused doc comment - /// doc comment - /// that is unused - match x { - /// c //~ ERROR unused doc comment - 1 => {}, - _ => {} - } - - /// foo //~ ERROR unused doc comment - unsafe {} - - #[doc = "foo"] //~ ERROR unused doc comment - #[doc = "bar"] //~ ERROR unused doc comment - 3; - - /// bar //~ ERROR unused doc comment - mac!(); - - let x = /** comment */ 47; //~ ERROR unused doc comment - - /// dox //~ ERROR unused doc comment - { - - } -} - -fn main() { - foo(); -} diff --git a/src/test/ui/lint/unused/useless-comment.stderr b/src/test/ui/lint/unused/useless-comment.stderr deleted file mode 100644 index 8bb5bdaeb..000000000 --- a/src/test/ui/lint/unused/useless-comment.stderr +++ /dev/null @@ -1,110 +0,0 @@ -error: unused doc comment - --> $DIR/useless-comment.rs:9:1 - | -LL | /// foo - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations - | - = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion -note: the lint level is defined here - --> $DIR/useless-comment.rs:3:9 - | -LL | #![deny(unused_doc_comments)] - | ^^^^^^^^^^^^^^^^^^^ - -error: unused doc comment - --> $DIR/useless-comment.rs:32:5 - | -LL | /// bar - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations - | - = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion - -error: unused doc comment - --> $DIR/useless-comment.rs:13:5 - | -LL | /// a - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | let x = 12; - | ----------- rustdoc does not generate documentation for statements - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:16:5 - | -LL | / /// multi-line -LL | | /// doc comment -LL | | /// that is unused - | |______________________^ -LL | / match x { -LL | | /// c -LL | | 1 => {}, -LL | | _ => {} -LL | | } - | |_____- rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:20:9 - | -LL | /// c - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | 1 => {}, - | ------- rustdoc does not generate documentation for match arms - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:25:5 - | -LL | /// foo - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | unsafe {} - | --------- rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:28:5 - | -LL | #[doc = "foo"] - | ^^^^^^^^^^^^^^ -LL | #[doc = "bar"] -LL | 3; - | - rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:29:5 - | -LL | #[doc = "bar"] - | ^^^^^^^^^^^^^^ -LL | 3; - | - rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:35:13 - | -LL | let x = /** comment */ 47; - | ^^^^^^^^^^^^^^ -- rustdoc does not generate documentation for expressions - | - = help: use `/* */` for a plain comment - -error: unused doc comment - --> $DIR/useless-comment.rs:37:5 - | -LL | /// dox - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | / { -LL | | -LL | | } - | |_____- rustdoc does not generate documentation for expressions - | - = help: use `//` for a plain comment - -error: aborting due to 10 previous errors - |