diff options
Diffstat (limited to 'src/test/ui/lint')
39 files changed, 559 insertions, 221 deletions
diff --git a/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.rs b/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.rs index e3935cf91..2003e1e29 100644 --- a/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.rs +++ b/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.rs @@ -7,7 +7,7 @@ struct Bar { b: usize, //~ ERROR field `b` is never read #[deny(dead_code)] c: usize, //~ ERROR fields `c` and `e` are never read - d: usize, //~ WARN fields `d`, `f` and `g` are never read + d: usize, //~ WARN fields `d`, `f`, and `g` are never read #[deny(dead_code)] e: usize, f: usize, diff --git a/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.stderr b/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.stderr index c0f1ed38f..0e5c78a71 100644 --- a/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.stderr +++ b/src/test/ui/lint/dead-code/multiple-dead-codes-in-the-same-struct.stderr @@ -1,4 +1,4 @@ -warning: fields `d`, `f` and `g` are never read +warning: fields `d`, `f`, and `g` are never read --> $DIR/multiple-dead-codes-in-the-same-struct.rs:10:5 | LL | struct Bar { diff --git a/src/test/ui/lint/dead-code/tuple-struct-field.rs b/src/test/ui/lint/dead-code/tuple-struct-field.rs index b15d70636..14fb30be9 100644 --- a/src/test/ui/lint/dead-code/tuple-struct-field.rs +++ b/src/test/ui/lint/dead-code/tuple-struct-field.rs @@ -11,7 +11,7 @@ struct SingleUnused(i32, [u8; LEN], String); //~| HELP: consider changing the field to be of unit type struct MultipleUnused(i32, f32, String, u8); -//~^ ERROR: fields `0`, `1`, `2` and `3` are never read +//~^ ERROR: fields `0`, `1`, `2`, and `3` are never read //~| NOTE: fields in this struct //~| HELP: consider changing the fields to be of unit type diff --git a/src/test/ui/lint/dead-code/tuple-struct-field.stderr b/src/test/ui/lint/dead-code/tuple-struct-field.stderr index ca0989f5b..b8ad5cbe4 100644 --- a/src/test/ui/lint/dead-code/tuple-struct-field.stderr +++ b/src/test/ui/lint/dead-code/tuple-struct-field.stderr @@ -16,7 +16,7 @@ help: consider changing the field to be of unit type to suppress this warning wh LL | struct SingleUnused(i32, (), String); | ~~ -error: fields `0`, `1`, `2` and `3` are never read +error: fields `0`, `1`, `2`, and `3` are never read --> $DIR/tuple-struct-field.rs:13:23 | LL | struct MultipleUnused(i32, f32, String, u8); diff --git a/src/test/ui/lint/fn_must_use.stderr b/src/test/ui/lint/fn_must_use.stderr index 2805720f0..657f23c60 100644 --- a/src/test/ui/lint/fn_must_use.stderr +++ b/src/test/ui/lint/fn_must_use.stderr @@ -2,7 +2,7 @@ warning: unused return value of `need_to_use_this_value` that must be used --> $DIR/fn_must_use.rs:55:5 | LL | need_to_use_this_value(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^ | = note: it's important note: the lint level is defined here @@ -15,13 +15,13 @@ warning: unused return value of `MyStruct::need_to_use_this_method_value` that m --> $DIR/fn_must_use.rs:60:5 | LL | m.need_to_use_this_method_value(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: unused return value of `EvenNature::is_even` that must be used --> $DIR/fn_must_use.rs:61:5 | LL | m.is_even(); // trait method! - | ^^^^^^^^^^^^ + | ^^^^^^^^^^^ | = note: no side effects @@ -29,19 +29,19 @@ warning: unused return value of `MyStruct::need_to_use_this_associated_function_ --> $DIR/fn_must_use.rs:64:5 | LL | MyStruct::need_to_use_this_associated_function_value(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: unused return value of `std::cmp::PartialEq::eq` that must be used --> $DIR/fn_must_use.rs:70:5 | LL | 2.eq(&3); - | ^^^^^^^^^ + | ^^^^^^^^ warning: unused return value of `std::cmp::PartialEq::eq` that must be used --> $DIR/fn_must_use.rs:71:5 | LL | m.eq(&n); - | ^^^^^^^^^ + | ^^^^^^^^ warning: unused comparison that must be used --> $DIR/fn_must_use.rs:74:5 diff --git a/src/test/ui/lint/invalid_value.stderr b/src/test/ui/lint/invalid_value.stderr index 76afb765f..5370660d6 100644 --- a/src/test/ui/lint/invalid_value.stderr +++ b/src/test/ui/lint/invalid_value.stderr @@ -34,7 +34,8 @@ LL | let _val: Wrap<&'static T> = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) + = note: `Wrap<&T>` must be non-null +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:17:18 | LL | struct Wrap<T> { wrapped: T } @@ -49,7 +50,8 @@ LL | let _val: Wrap<&'static T> = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) + = note: `Wrap<&T>` must be non-null +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:17:18 | LL | struct Wrap<T> { wrapped: T } @@ -97,7 +99,7 @@ LL | let _val: (i32, !) = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | - = note: integers must not be uninitialized + = note: integers must be initialized error: the type `Void` does not permit zero-initialization --> $DIR/invalid_value.rs:71:26 @@ -160,7 +162,8 @@ LL | let _val: Ref = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) + = note: `Ref` must be non-null +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:14:12 | LL | struct Ref(&'static i32); @@ -175,7 +178,8 @@ LL | let _val: Ref = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) + = note: `Ref` must be non-null +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:14:12 | LL | struct Ref(&'static i32); @@ -212,7 +216,8 @@ LL | let _val: Wrap<fn()> = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: function pointers must be non-null (in this struct field) + = note: `Wrap<fn()>` must be non-null +note: because function pointers must be non-null (in this struct field) --> $DIR/invalid_value.rs:17:18 | LL | struct Wrap<T> { wrapped: T } @@ -227,7 +232,8 @@ LL | let _val: Wrap<fn()> = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: function pointers must be non-null (in this struct field) + = note: `Wrap<fn()>` must be non-null +note: because function pointers must be non-null (in this struct field) --> $DIR/invalid_value.rs:17:18 | LL | struct Wrap<T> { wrapped: T } @@ -242,7 +248,8 @@ LL | let _val: WrapEnum<fn()> = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: function pointers must be non-null (in this field of the only potentially inhabited enum variant) + = note: `WrapEnum<fn()>` must be non-null +note: because function pointers must be non-null (in this field of the only potentially inhabited enum variant) --> $DIR/invalid_value.rs:18:28 | LL | enum WrapEnum<T> { Wrapped(T) } @@ -257,7 +264,8 @@ LL | let _val: WrapEnum<fn()> = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: function pointers must be non-null (in this field of the only potentially inhabited enum variant) + = note: `WrapEnum<fn()>` must be non-null +note: because function pointers must be non-null (in this field of the only potentially inhabited enum variant) --> $DIR/invalid_value.rs:18:28 | LL | enum WrapEnum<T> { Wrapped(T) } @@ -272,7 +280,12 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) +note: `RefPair` must be non-null (in this struct field) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:15:16 | LL | struct RefPair((&'static i32, i32)); @@ -287,7 +300,12 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: references must be non-null (in this struct field) +note: `RefPair` must be non-null (in this struct field) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ +note: because references must be non-null (in this struct field) --> $DIR/invalid_value.rs:15:16 | LL | struct RefPair((&'static i32, i32)); @@ -314,6 +332,7 @@ LL | let _val: NonNull<i32> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | = note: `std::ptr::NonNull<i32>` must be non-null + = note: raw pointers must be initialized error: the type `(NonZeroU32, i32)` does not permit zero-initialization --> $DIR/invalid_value.rs:95:39 @@ -336,6 +355,7 @@ LL | let _val: (NonZeroU32, i32) = mem::uninitialized(); | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | = note: `std::num::NonZeroU32` must be non-null + = note: integers must be initialized error: the type `*const dyn Send` does not permit zero-initialization --> $DIR/invalid_value.rs:98:37 @@ -420,7 +440,8 @@ LL | let _val: OneFruitNonZero = mem::zeroed(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: `std::num::NonZeroU32` must be non-null (in this field of the only potentially inhabited enum variant) + = note: `OneFruitNonZero` must be non-null +note: because `std::num::NonZeroU32` must be non-null (in this field of the only potentially inhabited enum variant) --> $DIR/invalid_value.rs:39:12 | LL | Banana(NonZeroU32), @@ -435,11 +456,13 @@ LL | let _val: OneFruitNonZero = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | -note: `std::num::NonZeroU32` must be non-null (in this field of the only potentially inhabited enum variant) + = note: `OneFruitNonZero` must be non-null +note: because `std::num::NonZeroU32` must be non-null (in this field of the only potentially inhabited enum variant) --> $DIR/invalid_value.rs:39:12 | LL | Banana(NonZeroU32), | ^^^^^^^^^^ + = note: integers must be initialized error: the type `bool` does not permit being left uninitialized --> $DIR/invalid_value.rs:112:26 @@ -461,6 +484,7 @@ LL | let _val: Wrap<char> = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | + = note: `Wrap<char>` must be initialized inside its custom valid range note: characters must be a valid Unicode codepoint (in this struct field) --> $DIR/invalid_value.rs:17:18 | @@ -477,6 +501,11 @@ LL | let _val: NonBig = mem::uninitialized(); | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | = note: `NonBig` must be initialized inside its custom valid range +note: integers must be initialized (in this struct field) + --> $DIR/invalid_value.rs:23:26 + | +LL | pub(crate) struct NonBig(u64); + | ^^^ error: the type `Fruit` does not permit being left uninitialized --> $DIR/invalid_value.rs:121:27 @@ -513,7 +542,7 @@ LL | let _val: i32 = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | - = note: integers must not be uninitialized + = note: integers must be initialized error: the type `f32` does not permit being left uninitialized --> $DIR/invalid_value.rs:130:25 @@ -524,7 +553,7 @@ LL | let _val: f32 = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | - = note: floats must not be uninitialized + = note: floats must be initialized error: the type `*const ()` does not permit being left uninitialized --> $DIR/invalid_value.rs:133:31 @@ -535,7 +564,7 @@ LL | let _val: *const () = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | - = note: raw pointers must not be uninitialized + = note: raw pointers must be initialized error: the type `*const [()]` does not permit being left uninitialized --> $DIR/invalid_value.rs:136:33 @@ -546,7 +575,7 @@ LL | let _val: *const [()] = mem::uninitialized(); | this code causes undefined behavior when executed | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | - = note: raw pointers must not be uninitialized + = note: raw pointers must be initialized error: the type `WrapAroundRange` does not permit being left uninitialized --> $DIR/invalid_value.rs:139:37 @@ -558,6 +587,11 @@ LL | let _val: WrapAroundRange = mem::uninitialized(); | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | = note: `WrapAroundRange` must be initialized inside its custom valid range +note: integers must be initialized (in this struct field) + --> $DIR/invalid_value.rs:49:35 + | +LL | pub(crate) struct WrapAroundRange(u8); + | ^^ error: the type `Result<i32, i32>` does not permit being left uninitialized --> $DIR/invalid_value.rs:144:38 @@ -628,6 +662,7 @@ LL | let _val: NonNull<i32> = MaybeUninit::uninit().assume_init(); | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done | = note: `std::ptr::NonNull<i32>` must be non-null + = note: raw pointers must be initialized error: the type `bool` does not permit being left uninitialized --> $DIR/invalid_value.rs:159:26 diff --git a/src/test/ui/lint/issue-103317.fixed b/src/test/ui/lint/issue-103317.fixed new file mode 100644 index 000000000..5a987423e --- /dev/null +++ b/src/test/ui/lint/issue-103317.fixed @@ -0,0 +1,14 @@ +// check-pass +// run-rustfix + +#[warn(unreachable_pub)] +mod inner { + #[allow(unused)] + pub(crate) enum T { + //~^ WARN unreachable `pub` item + A(u8), + X { a: f32, b: () }, + } +} + +fn main() {} diff --git a/src/test/ui/lint/issue-103317.rs b/src/test/ui/lint/issue-103317.rs new file mode 100644 index 000000000..c2ba939e1 --- /dev/null +++ b/src/test/ui/lint/issue-103317.rs @@ -0,0 +1,14 @@ +// check-pass +// run-rustfix + +#[warn(unreachable_pub)] +mod inner { + #[allow(unused)] + pub enum T { + //~^ WARN unreachable `pub` item + A(u8), + X { a: f32, b: () }, + } +} + +fn main() {} diff --git a/src/test/ui/lint/issue-103317.stderr b/src/test/ui/lint/issue-103317.stderr new file mode 100644 index 000000000..9c982ddc3 --- /dev/null +++ b/src/test/ui/lint/issue-103317.stderr @@ -0,0 +1,17 @@ +warning: unreachable `pub` item + --> $DIR/issue-103317.rs:7:5 + | +LL | pub enum T { + | ---^^^^^^^ + | | + | help: consider restricting its visibility: `pub(crate)` + | + = help: or consider exporting it for use by other crates +note: the lint level is defined here + --> $DIR/issue-103317.rs:4:8 + | +LL | #[warn(unreachable_pub)] + | ^^^^^^^^^^^^^^^ + +warning: 1 warning emitted + diff --git a/src/test/ui/lint/issue-103435-extra-parentheses.fixed b/src/test/ui/lint/issue-103435-extra-parentheses.fixed new file mode 100644 index 000000000..2b01b414b --- /dev/null +++ b/src/test/ui/lint/issue-103435-extra-parentheses.fixed @@ -0,0 +1,18 @@ +// run-rustfix +#![deny(unused_parens)] + +fn main() { + if let Some(_) = Some(1) {} + //~^ ERROR unnecessary parentheses around pattern + + for _x in 1..10 {} + //~^ ERROR unnecessary parentheses around pattern + + if 2 == 1 {} + //~^ ERROR unnecessary parentheses around `if` condition + + // reported by parser + for _x in 1..10 {} + //~^ ERROR expected one of + //~| ERROR unexpected parentheses surrounding +} diff --git a/src/test/ui/lint/issue-103435-extra-parentheses.rs b/src/test/ui/lint/issue-103435-extra-parentheses.rs new file mode 100644 index 000000000..8261610cf --- /dev/null +++ b/src/test/ui/lint/issue-103435-extra-parentheses.rs @@ -0,0 +1,18 @@ +// run-rustfix +#![deny(unused_parens)] + +fn main() { + if let(Some(_))= Some(1) {} + //~^ ERROR unnecessary parentheses around pattern + + for(_x)in 1..10 {} + //~^ ERROR unnecessary parentheses around pattern + + if(2 == 1){} + //~^ ERROR unnecessary parentheses around `if` condition + + // reported by parser + for(_x in 1..10){} + //~^ ERROR expected one of + //~| ERROR unexpected parentheses surrounding +} diff --git a/src/test/ui/lint/issue-103435-extra-parentheses.stderr b/src/test/ui/lint/issue-103435-extra-parentheses.stderr new file mode 100644 index 000000000..29c41c910 --- /dev/null +++ b/src/test/ui/lint/issue-103435-extra-parentheses.stderr @@ -0,0 +1,61 @@ +error: expected one of `)`, `,`, `@`, or `|`, found keyword `in` + --> $DIR/issue-103435-extra-parentheses.rs:15:12 + | +LL | for(_x in 1..10){} + | ^^ expected one of `)`, `,`, `@`, or `|` + +error: unexpected parentheses surrounding `for` loop head + --> $DIR/issue-103435-extra-parentheses.rs:15:8 + | +LL | for(_x in 1..10){} + | ^ ^ + | +help: remove parentheses in `for` loop + | +LL - for(_x in 1..10){} +LL + for _x in 1..10 {} + | + +error: unnecessary parentheses around pattern + --> $DIR/issue-103435-extra-parentheses.rs:5:11 + | +LL | if let(Some(_))= Some(1) {} + | ^ ^ + | +note: the lint level is defined here + --> $DIR/issue-103435-extra-parentheses.rs:2:9 + | +LL | #![deny(unused_parens)] + | ^^^^^^^^^^^^^ +help: remove these parentheses + | +LL - if let(Some(_))= Some(1) {} +LL + if let Some(_) = Some(1) {} + | + +error: unnecessary parentheses around pattern + --> $DIR/issue-103435-extra-parentheses.rs:8:8 + | +LL | for(_x)in 1..10 {} + | ^ ^ + | +help: remove these parentheses + | +LL - for(_x)in 1..10 {} +LL + for _x in 1..10 {} + | + +error: unnecessary parentheses around `if` condition + --> $DIR/issue-103435-extra-parentheses.rs:11:7 + | +LL | if(2 == 1){} + | ^ ^ + | +help: remove these parentheses + | +LL - if(2 == 1){} +LL + if 2 == 1 {} + | + +error: aborting due to 5 previous errors + diff --git a/src/test/ui/lint/issue-104392.rs b/src/test/ui/lint/issue-104392.rs new file mode 100644 index 000000000..d5608edb4 --- /dev/null +++ b/src/test/ui/lint/issue-104392.rs @@ -0,0 +1,11 @@ +fn main() { + { unsafe 92 } //~ ERROR expected `{`, found `92` +} + +fn foo() { + { mod 92 } //~ ERROR expected identifier, found `92` +} + +fn bar() { + { trait 92 } //~ ERROR expected identifier, found `92` +} diff --git a/src/test/ui/lint/issue-104392.stderr b/src/test/ui/lint/issue-104392.stderr new file mode 100644 index 000000000..8e466439a --- /dev/null +++ b/src/test/ui/lint/issue-104392.stderr @@ -0,0 +1,27 @@ +error: expected `{`, found `92` + --> $DIR/issue-104392.rs:2:14 + | +LL | { unsafe 92 } + | ------ ^^ expected `{` + | | + | while parsing this `unsafe` expression + | +help: try placing this code inside a block + | +LL | { unsafe { 92 } } + | + + + +error: expected identifier, found `92` + --> $DIR/issue-104392.rs:6:11 + | +LL | { mod 92 } + | ^^ expected identifier + +error: expected identifier, found `92` + --> $DIR/issue-104392.rs:10:13 + | +LL | { trait 92 } + | ^^ expected identifier + +error: aborting due to 3 previous errors + diff --git a/src/test/ui/lint/issue-104897.rs b/src/test/ui/lint/issue-104897.rs new file mode 100644 index 000000000..5fbc658f1 --- /dev/null +++ b/src/test/ui/lint/issue-104897.rs @@ -0,0 +1,6 @@ +// error-pattern: this file contains an unclosed delimiter +// error-pattern: this file contains an unclosed delimiter +// error-pattern: this file contains an unclosed delimiter +// error-pattern: format argument must be a string literal + +fn f(){(print!(รก diff --git a/src/test/ui/lint/issue-104897.stderr b/src/test/ui/lint/issue-104897.stderr new file mode 100644 index 000000000..817a93c2f --- /dev/null +++ b/src/test/ui/lint/issue-104897.stderr @@ -0,0 +1,43 @@ +error: this file contains an unclosed delimiter + --> $DIR/issue-104897.rs:6:18 + | +LL | fn f(){(print!(รก + | -- - ^ + | || | + | || unclosed delimiter + | |unclosed delimiter + | unclosed delimiter + +error: this file contains an unclosed delimiter + --> $DIR/issue-104897.rs:6:18 + | +LL | fn f(){(print!(รก + | -- - ^ + | || | + | || unclosed delimiter + | |unclosed delimiter + | unclosed delimiter + +error: this file contains an unclosed delimiter + --> $DIR/issue-104897.rs:6:18 + | +LL | fn f(){(print!(รก + | -- - ^ + | || | + | || unclosed delimiter + | |unclosed delimiter + | unclosed delimiter + +error: format argument must be a string literal + --> $DIR/issue-104897.rs:6:16 + | +LL | fn f(){(print!(รก + | ^ + | +help: you might be missing a string literal to format with + | +LL | fn f(){(print!("{}", รก + | +++++ + +error: aborting due to 4 previous errors + diff --git a/src/test/ui/lint/issue-97094.nointerleaved.stderr b/src/test/ui/lint/issue-97094.nointerleaved.stderr deleted file mode 100644 index a25816589..000000000 --- a/src/test/ui/lint/issue-97094.nointerleaved.stderr +++ /dev/null @@ -1,53 +0,0 @@ -error: unknown lint: `nonex_lint_top_level` - --> $DIR/issue-97094.rs:14:26 - | -LL | #![cfg_attr(all(), allow(nonex_lint_top_level))] - | ^^^^^^^^^^^^^^^^^^^^ - | -note: the lint level is defined here - --> $DIR/issue-97094.rs:10:9 - | -LL | #![deny(warnings)] - | ^^^^^^^^ - = note: `#[deny(unknown_lints)]` implied by `#[deny(warnings)]` - -error: lint `bare_trait_object` has been renamed to `bare_trait_objects` - --> $DIR/issue-97094.rs:16:26 - | -LL | #![cfg_attr(all(), allow(bare_trait_object))] - | ^^^^^^^^^^^^^^^^^ help: use the new name: `bare_trait_objects` - | - = note: `#[deny(renamed_and_removed_lints)]` implied by `#[deny(warnings)]` - -error: unknown lint: `nonex_lint_mod` - --> $DIR/issue-97094.rs:19:25 - | -LL | #[cfg_attr(all(), allow(nonex_lint_mod))] - | ^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_mod_inner` - --> $DIR/issue-97094.rs:22:30 - | -LL | #![cfg_attr(all(), allow(nonex_lint_mod_inner))] - | ^^^^^^^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:26:25 - | -LL | #[cfg_attr(all(), allow(nonex_lint_fn))] - | ^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_in_macro` - --> $DIR/issue-97094.rs:37:29 - | -LL | #[cfg_attr(all(), allow(nonex_lint_in_macro))] - | ^^^^^^^^^^^^^^^^^^^ - -error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:56:13 - | -LL | #[allow(nonex_lint_fn)] - | ^^^^^^^^^^^^^ - -error: aborting due to 7 previous errors - diff --git a/src/test/ui/lint/issue-97094.rs b/src/test/ui/lint/issue-97094.rs index aeaead1bd..22525ca11 100644 --- a/src/test/ui/lint/issue-97094.rs +++ b/src/test/ui/lint/issue-97094.rs @@ -1,12 +1,3 @@ -// revisions: interleaved nointerleaved -// [nointerleaved]compile-flags: -Z no-interleave-lints - -// This test has two revisions because the logic change -// needed to make this test pass had to be adjusted -// for no-interleave-lints. Should the debug option -// be removed one day, please don't remove this -// test entirely, just remove the revision from it. - #![deny(warnings)] // Ensure that unknown lints inside cfg-attr's are linted for diff --git a/src/test/ui/lint/issue-97094.interleaved.stderr b/src/test/ui/lint/issue-97094.stderr index a25816589..1a0a3eaf2 100644 --- a/src/test/ui/lint/issue-97094.interleaved.stderr +++ b/src/test/ui/lint/issue-97094.stderr @@ -1,18 +1,18 @@ error: unknown lint: `nonex_lint_top_level` - --> $DIR/issue-97094.rs:14:26 + --> $DIR/issue-97094.rs:5:26 | LL | #![cfg_attr(all(), allow(nonex_lint_top_level))] | ^^^^^^^^^^^^^^^^^^^^ | note: the lint level is defined here - --> $DIR/issue-97094.rs:10:9 + --> $DIR/issue-97094.rs:1:9 | LL | #![deny(warnings)] | ^^^^^^^^ = note: `#[deny(unknown_lints)]` implied by `#[deny(warnings)]` error: lint `bare_trait_object` has been renamed to `bare_trait_objects` - --> $DIR/issue-97094.rs:16:26 + --> $DIR/issue-97094.rs:7:26 | LL | #![cfg_attr(all(), allow(bare_trait_object))] | ^^^^^^^^^^^^^^^^^ help: use the new name: `bare_trait_objects` @@ -20,31 +20,31 @@ LL | #![cfg_attr(all(), allow(bare_trait_object))] = note: `#[deny(renamed_and_removed_lints)]` implied by `#[deny(warnings)]` error: unknown lint: `nonex_lint_mod` - --> $DIR/issue-97094.rs:19:25 + --> $DIR/issue-97094.rs:10:25 | LL | #[cfg_attr(all(), allow(nonex_lint_mod))] | ^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_mod_inner` - --> $DIR/issue-97094.rs:22:30 + --> $DIR/issue-97094.rs:13:30 | LL | #![cfg_attr(all(), allow(nonex_lint_mod_inner))] | ^^^^^^^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:26:25 + --> $DIR/issue-97094.rs:17:25 | LL | #[cfg_attr(all(), allow(nonex_lint_fn))] | ^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_in_macro` - --> $DIR/issue-97094.rs:37:29 + --> $DIR/issue-97094.rs:28:29 | LL | #[cfg_attr(all(), allow(nonex_lint_in_macro))] | ^^^^^^^^^^^^^^^^^^^ error: unknown lint: `nonex_lint_fn` - --> $DIR/issue-97094.rs:56:13 + --> $DIR/issue-97094.rs:47:13 | LL | #[allow(nonex_lint_fn)] | ^^^^^^^^^^^^^ diff --git a/src/test/ui/lint/lint-incoherent-auto-trait-objects.stderr b/src/test/ui/lint/lint-incoherent-auto-trait-objects.stderr index 2cc4d382d..553ab3869 100644 --- a/src/test/ui/lint/lint-incoherent-auto-trait-objects.stderr +++ b/src/test/ui/lint/lint-incoherent-auto-trait-objects.stderr @@ -1,36 +1,36 @@ -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:5:1 | LL | impl Foo for dyn Send {} | --------------------- first implementation here LL | LL | impl Foo for dyn Send + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> = note: `#[deny(order_dependent_trait_objects)]` on by default -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + Sync + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:11:1 | LL | impl Foo for dyn Send + Sync {} | ---------------------------- first implementation here LL | LL | impl Foo for dyn Sync + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + Sync + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + Sync + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:15:1 | LL | impl Foo for dyn Sync + Send {} | ---------------------------- first implementation here ... LL | impl Foo for dyn Send + Sync + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + Sync + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> @@ -38,42 +38,42 @@ LL | impl Foo for dyn Send + Sync + Send {} error: aborting due to 3 previous errors Future incompatibility report: Future breakage diagnostic: -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:5:1 | LL | impl Foo for dyn Send {} | --------------------- first implementation here LL | LL | impl Foo for dyn Send + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> = note: `#[deny(order_dependent_trait_objects)]` on by default Future breakage diagnostic: -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + Sync + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:11:1 | LL | impl Foo for dyn Send + Sync {} | ---------------------------- first implementation here LL | LL | impl Foo for dyn Sync + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + Sync + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> = note: `#[deny(order_dependent_trait_objects)]` on by default Future breakage diagnostic: -error: conflicting implementations of trait `Foo` for type `(dyn std::marker::Send + std::marker::Sync + 'static)`: (E0119) +error: conflicting implementations of trait `Foo` for type `(dyn Send + Sync + 'static)`: (E0119) --> $DIR/lint-incoherent-auto-trait-objects.rs:15:1 | LL | impl Foo for dyn Sync + Send {} | ---------------------------- first implementation here ... LL | impl Foo for dyn Send + Sync + Send {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn std::marker::Send + std::marker::Sync + 'static)` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Send + Sync + 'static)` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #56484 <https://github.com/rust-lang/rust/issues/56484> diff --git a/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.rs b/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.rs new file mode 100644 index 000000000..c83bca4a4 --- /dev/null +++ b/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.rs @@ -0,0 +1,41 @@ +#![feature(type_alias_impl_trait)] +#![allow(unused)] +#![deny(improper_ctypes)] + +pub trait TraitA { + type Assoc; +} + +impl TraitA for u32 { + type Assoc = u32; +} + +pub trait TraitB { + type Assoc; +} + +impl<T> TraitB for T +where + T: TraitA, +{ + type Assoc = <T as TraitA>::Assoc; +} + +type AliasA = impl TraitA<Assoc = u32>; + +type AliasB = impl TraitB; + +fn use_of_a() -> AliasA { + 3 +} + +fn use_of_b() -> AliasB { + 3 +} + +extern "C" { + fn lint_me() -> <AliasB as TraitB>::Assoc; + //~^ ERROR `extern` block uses type `AliasB`, which is not FFI-safe +} + +fn main() {} diff --git a/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.stderr b/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.stderr new file mode 100644 index 000000000..e8d696477 --- /dev/null +++ b/src/test/ui/lint/opaque-ty-ffi-normalization-cycle.stderr @@ -0,0 +1,15 @@ +error: `extern` block uses type `AliasB`, which is not FFI-safe + --> $DIR/opaque-ty-ffi-normalization-cycle.rs:37:21 + | +LL | fn lint_me() -> <AliasB as TraitB>::Assoc; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe + | + = note: opaque types have no C equivalent +note: the lint level is defined here + --> $DIR/opaque-ty-ffi-normalization-cycle.rs:3:9 + | +LL | #![deny(improper_ctypes)] + | ^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/lint/suggestions.stderr b/src/test/ui/lint/suggestions.stderr index f4c0e2141..4caee777a 100644 --- a/src/test/ui/lint/suggestions.stderr +++ b/src/test/ui/lint/suggestions.stderr @@ -41,12 +41,12 @@ warning: variable does not need to be mutable --> $DIR/suggestions.rs:54:13 | LL | let mut - | _____________^ - | |_____________| + | ______________^ + | | _____________| | || LL | || b = 1; | ||____________-^ - | |____________| + | |_____________| | help: remove this `mut` error: const items should never be `#[no_mangle]` diff --git a/src/test/ui/lint/unused/issue-104397.rs b/src/test/ui/lint/unused/issue-104397.rs new file mode 100644 index 000000000..94e15cd96 --- /dev/null +++ b/src/test/ui/lint/unused/issue-104397.rs @@ -0,0 +1,18 @@ +// 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-88519-unused-paren.rs b/src/test/ui/lint/unused/issue-88519-unused-paren.rs index be02fcd3f..ce3d15ac1 100644 --- a/src/test/ui/lint/unused/issue-88519-unused-paren.rs +++ b/src/test/ui/lint/unused/issue-88519-unused-paren.rs @@ -51,22 +51,13 @@ mod casts { mod typeascription { fn outside() -> u8 { - ({ 0 }): u8 - } - fn inside() -> u8 { - ({ 0 }: u8) + type_ascribe!(({ 0 }), u8) } fn outside_match() -> u8 { - (match 0 { x => x }): u8 - } - fn inside_match() -> u8 { - (match 0 { x => x }: u8) + type_ascribe!((match 0 { x => x }), u8) } fn outside_if() -> u8 { - (if false { 0 } else { 0 }): u8 - } - fn inside_if() -> u8 { - (if false { 0 } else { 0 }: u8) + type_ascribe!((if false { 0 } else { 0 }), u8) } } 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 index 011acc3bf..721182757 100644 --- a/src/test/ui/lint/unused/must-use-box-from-raw.stderr +++ b/src/test/ui/lint/unused/must-use-box-from-raw.stderr @@ -2,7 +2,7 @@ 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 diff --git a/src/test/ui/lint/unused/must-use-ops.rs b/src/test/ui/lint/unused/must-use-ops.rs index 3e425727e..60f877aa8 100644 --- a/src/test/ui/lint/unused/must-use-ops.rs +++ b/src/test/ui/lint/unused/must-use-ops.rs @@ -3,12 +3,18 @@ // 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 + // Comparison Operators val == 1; //~ WARNING unused comparison val < 1; //~ WARNING unused comparison val <= 1; //~ WARNING unused comparison @@ -16,26 +22,30 @@ fn main() { val >= 1; //~ WARNING unused comparison val > 1; //~ WARNING unused comparison -// Arithmetic Operators + // 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 + // Logical Operators true && true; //~ WARNING unused logical operation false || true; //~ WARNING unused logical operation -// Bitwise Operators + // 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 + // 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 index b248dd0fe..79a53d39c 100644 --- a/src/test/ui/lint/unused/must-use-ops.stderr +++ b/src/test/ui/lint/unused/must-use-ops.stderr @@ -1,5 +1,5 @@ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:12:5 + --> $DIR/must-use-ops.rs:18:5 | LL | val == 1; | ^^^^^^^^ the comparison produces a value @@ -15,7 +15,7 @@ LL | let _ = val == 1; | +++++++ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:13:5 + --> $DIR/must-use-ops.rs:19:5 | LL | val < 1; | ^^^^^^^ the comparison produces a value @@ -26,7 +26,7 @@ LL | let _ = val < 1; | +++++++ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:14:5 + --> $DIR/must-use-ops.rs:20:5 | LL | val <= 1; | ^^^^^^^^ the comparison produces a value @@ -37,7 +37,7 @@ LL | let _ = val <= 1; | +++++++ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:15:5 + --> $DIR/must-use-ops.rs:21:5 | LL | val != 1; | ^^^^^^^^ the comparison produces a value @@ -48,7 +48,7 @@ LL | let _ = val != 1; | +++++++ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:16:5 + --> $DIR/must-use-ops.rs:22:5 | LL | val >= 1; | ^^^^^^^^ the comparison produces a value @@ -59,7 +59,7 @@ LL | let _ = val >= 1; | +++++++ warning: unused comparison that must be used - --> $DIR/must-use-ops.rs:17:5 + --> $DIR/must-use-ops.rs:23:5 | LL | val > 1; | ^^^^^^^ the comparison produces a value @@ -70,7 +70,7 @@ LL | let _ = val > 1; | +++++++ warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:20:5 + --> $DIR/must-use-ops.rs:26:5 | LL | val + 2; | ^^^^^^^ the arithmetic operation produces a value @@ -81,7 +81,7 @@ LL | let _ = val + 2; | +++++++ warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:21:5 + --> $DIR/must-use-ops.rs:27:5 | LL | val - 2; | ^^^^^^^ the arithmetic operation produces a value @@ -92,7 +92,7 @@ LL | let _ = val - 2; | +++++++ warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:22:5 + --> $DIR/must-use-ops.rs:28:5 | LL | val / 2; | ^^^^^^^ the arithmetic operation produces a value @@ -103,7 +103,7 @@ LL | let _ = val / 2; | +++++++ warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:23:5 + --> $DIR/must-use-ops.rs:29:5 | LL | val * 2; | ^^^^^^^ the arithmetic operation produces a value @@ -114,7 +114,7 @@ LL | let _ = val * 2; | +++++++ warning: unused arithmetic operation that must be used - --> $DIR/must-use-ops.rs:24:5 + --> $DIR/must-use-ops.rs:30:5 | LL | val % 2; | ^^^^^^^ the arithmetic operation produces a value @@ -125,7 +125,7 @@ LL | let _ = val % 2; | +++++++ warning: unused logical operation that must be used - --> $DIR/must-use-ops.rs:27:5 + --> $DIR/must-use-ops.rs:33:5 | LL | true && true; | ^^^^^^^^^^^^ the logical operation produces a value @@ -136,7 +136,7 @@ LL | let _ = true && true; | +++++++ warning: unused logical operation that must be used - --> $DIR/must-use-ops.rs:28:5 + --> $DIR/must-use-ops.rs:34:5 | LL | false || true; | ^^^^^^^^^^^^^ the logical operation produces a value @@ -147,7 +147,7 @@ LL | let _ = false || true; | +++++++ warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:31:5 + --> $DIR/must-use-ops.rs:37:5 | LL | 5 ^ val; | ^^^^^^^ the bitwise operation produces a value @@ -158,7 +158,7 @@ LL | let _ = 5 ^ val; | +++++++ warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:32:5 + --> $DIR/must-use-ops.rs:38:5 | LL | 5 & val; | ^^^^^^^ the bitwise operation produces a value @@ -169,7 +169,7 @@ LL | let _ = 5 & val; | +++++++ warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:33:5 + --> $DIR/must-use-ops.rs:39:5 | LL | 5 | val; | ^^^^^^^ the bitwise operation produces a value @@ -180,7 +180,7 @@ LL | let _ = 5 | val; | +++++++ warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:34:5 + --> $DIR/must-use-ops.rs:40:5 | LL | 5 << val; | ^^^^^^^^ the bitwise operation produces a value @@ -191,7 +191,7 @@ LL | let _ = 5 << val; | +++++++ warning: unused bitwise operation that must be used - --> $DIR/must-use-ops.rs:35:5 + --> $DIR/must-use-ops.rs:41:5 | LL | 5 >> val; | ^^^^^^^^ the bitwise operation produces a value @@ -202,7 +202,7 @@ LL | let _ = 5 >> val; | +++++++ warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:38:5 + --> $DIR/must-use-ops.rs:44:5 | LL | !val; | ^^^^ the unary operation produces a value @@ -213,7 +213,7 @@ LL | let _ = !val; | +++++++ warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:39:5 + --> $DIR/must-use-ops.rs:45:5 | LL | -val; | ^^^^ the unary operation produces a value @@ -224,7 +224,7 @@ LL | let _ = -val; | +++++++ warning: unused unary operation that must be used - --> $DIR/must-use-ops.rs:40:5 + --> $DIR/must-use-ops.rs:46:5 | LL | *val_pointer; | ^^^^^^^^^^^^ the unary operation produces a value diff --git a/src/test/ui/lint/unused/must_use-array.rs b/src/test/ui/lint/unused/must_use-array.rs index 97825dd2f..b7bae4b0a 100644 --- a/src/test/ui/lint/unused/must_use-array.rs +++ b/src/test/ui/lint/unused/must_use-array.rs @@ -1,6 +1,7 @@ #![deny(unused_must_use)] #[must_use] +#[derive(Clone, Copy)] struct S; struct A; @@ -34,6 +35,10 @@ 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 @@ -44,4 +49,6 @@ fn main() { //~^ 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 index 45a5317fc..61ef2088d 100644 --- a/src/test/ui/lint/unused/must_use-array.stderr +++ b/src/test/ui/lint/unused/must_use-array.stderr @@ -1,8 +1,8 @@ error: unused array of `S` that must be used - --> $DIR/must_use-array.rs:39:5 + --> $DIR/must_use-array.rs:44:5 | LL | singleton(); - | ^^^^^^^^^^^^ + | ^^^^^^^^^^^ | note: the lint level is defined here --> $DIR/must_use-array.rs:1:9 @@ -11,34 +11,40 @@ LL | #![deny(unused_must_use)] | ^^^^^^^^^^^^^^^ error: unused array of `S` that must be used - --> $DIR/must_use-array.rs:40:5 + --> $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:41:6 + --> $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:42:5 + --> $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:43:5 + --> $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:45:5 + --> $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 6 previous errors +error: aborting due to 7 previous errors 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 index f5199f43c..ef738708d 100644 --- a/src/test/ui/lint/unused/must_use-in-stdlib-traits.stderr +++ b/src/test/ui/lint/unused/must_use-in-stdlib-traits.stderr @@ -2,7 +2,7 @@ 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 @@ -15,7 +15,7 @@ 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 @@ -23,7 +23,7 @@ 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 @@ -31,7 +31,7 @@ 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 @@ -39,7 +39,7 @@ 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 diff --git a/src/test/ui/lint/unused/must_use-trait.stderr b/src/test/ui/lint/unused/must_use-trait.stderr index a42eb8841..2f5496484 100644 --- a/src/test/ui/lint/unused/must_use-trait.stderr +++ b/src/test/ui/lint/unused/must_use-trait.stderr @@ -2,7 +2,7 @@ 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 @@ -14,13 +14,13 @@ 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 diff --git a/src/test/ui/lint/unused/must_use-unit.stderr b/src/test/ui/lint/unused/must_use-unit.stderr index 7f25a1935..9fcbc5074 100644 --- a/src/test/ui/lint/unused/must_use-unit.stderr +++ b/src/test/ui/lint/unused/must_use-unit.stderr @@ -2,7 +2,7 @@ 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 @@ -14,7 +14,7 @@ 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/unused-async.rs b/src/test/ui/lint/unused/unused-async.rs index 7d17af115..4be93aa15 100644 --- a/src/test/ui/lint/unused/unused-async.rs +++ b/src/test/ui/lint/unused/unused-async.rs @@ -1,24 +1,43 @@ // edition:2018 -// run-pass -#![allow(dead_code)] +#![deny(unused_must_use)] + #[must_use] -//~^ WARNING `must_use` -async fn test() -> i32 { +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] - //~^ WARNING `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] diff --git a/src/test/ui/lint/unused/unused-async.stderr b/src/test/ui/lint/unused/unused-async.stderr index 6bbc9e2bf..4bcb26dc1 100644 --- a/src/test/ui/lint/unused/unused-async.stderr +++ b/src/test/ui/lint/unused/unused-async.stderr @@ -1,26 +1,55 @@ -warning: `must_use` attribute on `async` functions applies to the anonymous `Future` returned by the function, not the value within - --> $DIR/unused-async.rs:5:1 - | -LL | #[must_use] - | ^^^^^^^^^^^ -LL | -LL | / async fn test() -> i32 { -LL | | 1 -LL | | } - | |_- this attribute does nothing, the `Future`s returned by async functions are already `must_use` - | - = note: `#[warn(unused_attributes)]` on by default - -warning: `must_use` attribute on `async` functions applies to the anonymous `Future` returned by the function, not the value within - --> $DIR/unused-async.rs:15:5 - | -LL | #[must_use] - | ^^^^^^^^^^^ -LL | -LL | / async fn test_method() -> i32 { -LL | | 1 -LL | | } - | |_____- this attribute does nothing, the `Future`s returned by async functions are already `must_use` - -warning: 2 warnings emitted +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-closure.stderr b/src/test/ui/lint/unused/unused-closure.stderr index 4362abd20..c3a82402e 100644 --- a/src/test/ui/lint/unused/unused-closure.stderr +++ b/src/test/ui/lint/unused/unused-closure.stderr @@ -4,7 +4,7 @@ error: unused closure that must be used LL | / || { LL | | println!("Hello!"); LL | | }; - | |______^ + | |_____^ | = note: closures are lazy and do nothing unless called note: the lint level is defined here @@ -17,7 +17,7 @@ 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 @@ -25,7 +25,7 @@ error: unused closure that must be used --> $DIR/unused-closure.rs:14:5 | LL | || async {}; - | ^^^^^^^^^^^^ + | ^^^^^^^^^^^ | = note: closures are lazy and do nothing unless called @@ -33,7 +33,7 @@ error: unused closure that must be used --> $DIR/unused-closure.rs:15:5 | LL | async || {}; - | ^^^^^^^^^^^^ + | ^^^^^^^^^^^ | = note: closures are lazy and do nothing unless called @@ -41,7 +41,7 @@ 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 @@ -49,7 +49,7 @@ 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 @@ -57,7 +57,7 @@ error: unused closure that must be used --> $DIR/unused-closure.rs:23:9 | LL | || true; - | ^^^^^^^^ + | ^^^^^^^ | = note: closures are lazy and do nothing unless called diff --git a/src/test/ui/lint/unused/unused-result.stderr b/src/test/ui/lint/unused/unused-result.stderr index 087e06341..4e1ba1fd9 100644 --- a/src/test/ui/lint/unused/unused-result.stderr +++ b/src/test/ui/lint/unused/unused-result.stderr @@ -2,7 +2,7 @@ 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 @@ -14,7 +14,7 @@ error: unused `MustUseMsg` that must be used --> $DIR/unused-result.rs:22:5 | LL | foo::<MustUseMsg>(); - | ^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ | = note: some message @@ -34,13 +34,13 @@ 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 diff --git a/src/test/ui/lint/unused/unused-supertrait.stderr b/src/test/ui/lint/unused/unused-supertrait.stderr index d2f8c0078..cb45add9c 100644 --- a/src/test/ui/lint/unused/unused-supertrait.stderr +++ b/src/test/ui/lint/unused/unused-supertrait.stderr @@ -2,7 +2,7 @@ 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 diff --git a/src/test/ui/lint/unused/unused_attributes-must_use.stderr b/src/test/ui/lint/unused/unused_attributes-must_use.stderr index ce959ddbc..0f699429e 100644 --- a/src/test/ui/lint/unused/unused_attributes-must_use.stderr +++ b/src/test/ui/lint/unused/unused_attributes-must_use.stderr @@ -139,7 +139,7 @@ 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 @@ -151,37 +151,37 @@ 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 |