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Diffstat (limited to '')
| -rw-r--r-- | src/test/ui/lint/invalid_value.stderr | 644 |
1 files changed, 644 insertions, 0 deletions
diff --git a/src/test/ui/lint/invalid_value.stderr b/src/test/ui/lint/invalid_value.stderr new file mode 100644 index 000000000..76afb765f --- /dev/null +++ b/src/test/ui/lint/invalid_value.stderr @@ -0,0 +1,644 @@ +error: the type `&T` does not permit zero-initialization + --> $DIR/invalid_value.rs:54:32 + | +LL | let _val: &'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 +note: the lint level is defined here + --> $DIR/invalid_value.rs:6:9 + | +LL | #![deny(invalid_value)] + | ^^^^^^^^^^^^^ + +error: the type `&T` does not permit being left uninitialized + --> $DIR/invalid_value.rs:55:32 + | +LL | let _val: &'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 + +error: the type `Wrap<&T>` does not permit zero-initialization + --> $DIR/invalid_value.rs:57:38 + | +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) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `Wrap<&T>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:58:38 + | +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) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `!` does not permit zero-initialization + --> $DIR/invalid_value.rs:65:23 + | +LL | let _val: ! = mem::zeroed(); + | ^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: the `!` type has no valid value + +error: the type `!` does not permit being left uninitialized + --> $DIR/invalid_value.rs:66:23 + | +LL | let _val: ! = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: the `!` type has no valid value + +error: the type `(i32, !)` does not permit zero-initialization + --> $DIR/invalid_value.rs:68:30 + | +LL | let _val: (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: the `!` type has no valid value + +error: the type `(i32, !)` does not permit being left uninitialized + --> $DIR/invalid_value.rs:69:30 + | +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 + +error: the type `Void` does not permit zero-initialization + --> $DIR/invalid_value.rs:71:26 + | +LL | let _val: Void = mem::zeroed(); + | ^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | +note: enums with no inhabited variants have no valid value + --> $DIR/invalid_value.rs:12:1 + | +LL | enum Void {} + | ^^^^^^^^^ + +error: the type `Void` does not permit being left uninitialized + --> $DIR/invalid_value.rs:72:26 + | +LL | let _val: Void = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | +note: enums with no inhabited variants have no valid value + --> $DIR/invalid_value.rs:12:1 + | +LL | enum Void {} + | ^^^^^^^^^ + +error: the type `&i32` does not permit zero-initialization + --> $DIR/invalid_value.rs:74:34 + | +LL | let _val: &'static 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 + +error: the type `&i32` does not permit being left uninitialized + --> $DIR/invalid_value.rs:75:34 + | +LL | let _val: &'static 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 + +error: the type `Ref` does not permit zero-initialization + --> $DIR/invalid_value.rs:77:25 + | +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) + --> $DIR/invalid_value.rs:14:12 + | +LL | struct Ref(&'static i32); + | ^^^^^^^^^^^^ + +error: the type `Ref` does not permit being left uninitialized + --> $DIR/invalid_value.rs:78:25 + | +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) + --> $DIR/invalid_value.rs:14:12 + | +LL | struct Ref(&'static i32); + | ^^^^^^^^^^^^ + +error: the type `fn()` does not permit zero-initialization + --> $DIR/invalid_value.rs:80:26 + | +LL | let _val: 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 + +error: the type `fn()` does not permit being left uninitialized + --> $DIR/invalid_value.rs:81:26 + | +LL | let _val: 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 + +error: the type `Wrap<fn()>` does not permit zero-initialization + --> $DIR/invalid_value.rs:83:32 + | +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) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `Wrap<fn()>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:84:32 + | +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) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `WrapEnum<fn()>` does not permit zero-initialization + --> $DIR/invalid_value.rs:86:36 + | +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) + --> $DIR/invalid_value.rs:18:28 + | +LL | enum WrapEnum<T> { Wrapped(T) } + | ^ + +error: the type `WrapEnum<fn()>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:87:36 + | +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) + --> $DIR/invalid_value.rs:18:28 + | +LL | enum WrapEnum<T> { Wrapped(T) } + | ^ + +error: the type `Wrap<(RefPair, i32)>` does not permit zero-initialization + --> $DIR/invalid_value.rs:89:42 + | +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) + --> $DIR/invalid_value.rs:15:16 + | +LL | struct RefPair((&'static i32, i32)); + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `Wrap<(RefPair, i32)>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:90:42 + | +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) + --> $DIR/invalid_value.rs:15:16 + | +LL | struct RefPair((&'static i32, i32)); + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `NonNull<i32>` does not permit zero-initialization + --> $DIR/invalid_value.rs:92:34 + | +LL | let _val: NonNull<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: `std::ptr::NonNull<i32>` must be non-null + +error: the type `NonNull<i32>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:93:34 + | +LL | let _val: NonNull<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: `std::ptr::NonNull<i32>` must be non-null + +error: the type `(NonZeroU32, i32)` does not permit zero-initialization + --> $DIR/invalid_value.rs:95:39 + | +LL | let _val: (NonZeroU32, 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: `std::num::NonZeroU32` must be non-null + +error: the type `(NonZeroU32, i32)` does not permit being left uninitialized + --> $DIR/invalid_value.rs:96:39 + | +LL | let _val: (NonZeroU32, 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: `std::num::NonZeroU32` must be non-null + +error: the type `*const dyn Send` does not permit zero-initialization + --> $DIR/invalid_value.rs:98:37 + | +LL | let _val: *const dyn Send = mem::zeroed(); + | ^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: the vtable of a wide raw pointer must be non-null + +error: the type `*const dyn Send` does not permit being left uninitialized + --> $DIR/invalid_value.rs:99:37 + | +LL | let _val: *const dyn Send = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: the vtable of a wide raw pointer must be non-null + +error: the type `[fn(); 2]` does not permit zero-initialization + --> $DIR/invalid_value.rs:101:31 + | +LL | let _val: [fn(); 2] = 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 + +error: the type `[fn(); 2]` does not permit being left uninitialized + --> $DIR/invalid_value.rs:102:31 + | +LL | let _val: [fn(); 2] = 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 + +error: the type `TwoUninhabited` does not permit zero-initialization + --> $DIR/invalid_value.rs:104:36 + | +LL | let _val: TwoUninhabited = mem::zeroed(); + | ^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | +note: enums with no inhabited variants have no valid value + --> $DIR/invalid_value.rs:42:1 + | +LL | enum TwoUninhabited { + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `TwoUninhabited` does not permit being left uninitialized + --> $DIR/invalid_value.rs:105:36 + | +LL | let _val: TwoUninhabited = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | +note: enums with no inhabited variants have no valid value + --> $DIR/invalid_value.rs:42:1 + | +LL | enum TwoUninhabited { + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `OneFruitNonZero` does not permit zero-initialization + --> $DIR/invalid_value.rs:107:37 + | +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) + --> $DIR/invalid_value.rs:39:12 + | +LL | Banana(NonZeroU32), + | ^^^^^^^^^^ + +error: the type `OneFruitNonZero` does not permit being left uninitialized + --> $DIR/invalid_value.rs:108:37 + | +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) + --> $DIR/invalid_value.rs:39:12 + | +LL | Banana(NonZeroU32), + | ^^^^^^^^^^ + +error: the type `bool` does not permit being left uninitialized + --> $DIR/invalid_value.rs:112:26 + | +LL | let _val: bool = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: booleans must be either `true` or `false` + +error: the type `Wrap<char>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:115:32 + | +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: characters must be a valid Unicode codepoint (in this struct field) + --> $DIR/invalid_value.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `NonBig` does not permit being left uninitialized + --> $DIR/invalid_value.rs:118:28 + | +LL | let _val: NonBig = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: `NonBig` must be initialized inside its custom valid range + +error: the type `Fruit` does not permit being left uninitialized + --> $DIR/invalid_value.rs:121:27 + | +LL | let _val: Fruit = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | +note: enums with multiple inhabited variants have to be initialized to a variant + --> $DIR/invalid_value.rs:26:1 + | +LL | enum Fruit { + | ^^^^^^^^^^ + +error: the type `[bool; 2]` does not permit being left uninitialized + --> $DIR/invalid_value.rs:124:31 + | +LL | let _val: [bool; 2] = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: booleans must be either `true` or `false` + +error: the type `i32` does not permit being left uninitialized + --> $DIR/invalid_value.rs:127:25 + | +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 + +error: the type `f32` does not permit being left uninitialized + --> $DIR/invalid_value.rs:130:25 + | +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 + +error: the type `*const ()` does not permit being left uninitialized + --> $DIR/invalid_value.rs:133:31 + | +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 + +error: the type `*const [()]` does not permit being left uninitialized + --> $DIR/invalid_value.rs:136:33 + | +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 + +error: the type `WrapAroundRange` does not permit being left uninitialized + --> $DIR/invalid_value.rs:139:37 + | +LL | let _val: WrapAroundRange = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: `WrapAroundRange` must be initialized inside its custom valid range + +error: the type `Result<i32, i32>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:144:38 + | +LL | let _val: Result<i32, 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: enums with multiple inhabited variants have to be initialized to a variant + --> $SRC_DIR/core/src/result.rs:LL:COL + | +LL | pub enum Result<T, E> { + | ^^^^^^^^^^^^^^^^^^^^^ + +error: the type `&i32` does not permit zero-initialization + --> $DIR/invalid_value.rs:152:34 + | +LL | let _val: &'static i32 = mem::transmute(0usize); + | ^^^^^^^^^^^^^^^^^^^^^^ + | | + | 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 + +error: the type `&[i32]` does not permit zero-initialization + --> $DIR/invalid_value.rs:153:36 + | +LL | let _val: &'static [i32] = mem::transmute((0usize, 0usize)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | 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 + +error: the type `NonZeroU32` does not permit zero-initialization + --> $DIR/invalid_value.rs:154:32 + | +LL | let _val: NonZeroU32 = mem::transmute(0); + | ^^^^^^^^^^^^^^^^^ + | | + | 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 + +error: the type `NonNull<i32>` does not permit zero-initialization + --> $DIR/invalid_value.rs:157:34 + | +LL | let _val: NonNull<i32> = MaybeUninit::zeroed().assume_init(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: `std::ptr::NonNull<i32>` must be non-null + +error: the type `NonNull<i32>` does not permit being left uninitialized + --> $DIR/invalid_value.rs:158:34 + | +LL | let _val: NonNull<i32> = MaybeUninit::uninit().assume_init(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: `std::ptr::NonNull<i32>` must be non-null + +error: the type `bool` does not permit being left uninitialized + --> $DIR/invalid_value.rs:159:26 + | +LL | let _val: bool = MaybeUninit::uninit().assume_init(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done + | + = note: booleans must be either `true` or `false` + +error: aborting due to 51 previous errors + |