diff options
Diffstat (limited to 'src/test/ui/lint/uninitialized-zeroed.stderr')
| -rw-r--r-- | src/test/ui/lint/uninitialized-zeroed.stderr | 484 |
1 files changed, 484 insertions, 0 deletions
diff --git a/src/test/ui/lint/uninitialized-zeroed.stderr b/src/test/ui/lint/uninitialized-zeroed.stderr new file mode 100644 index 000000000..88121a183 --- /dev/null +++ b/src/test/ui/lint/uninitialized-zeroed.stderr @@ -0,0 +1,484 @@ +error: the type `&T` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:40:32 + | +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: the lint level is defined here + --> $DIR/uninitialized-zeroed.rs:6:9 + | +LL | #![deny(invalid_value)] + | ^^^^^^^^^^^^^ + = note: references must be non-null + +error: the type `&T` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:41:32 + | +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/uninitialized-zeroed.rs:43:38 + | +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/uninitialized-zeroed.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `Wrap<&T>` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:44:38 + | +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/uninitialized-zeroed.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `!` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:51:23 + | +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/uninitialized-zeroed.rs:52:23 + | +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/uninitialized-zeroed.rs:54:30 + | +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/uninitialized-zeroed.rs:55:30 + | +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: the `!` type has no valid value + +error: the type `Void` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:57:26 + | +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 variants have no valid value + +error: the type `Void` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:58:26 + | +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 variants have no valid value + +error: the type `&i32` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:60:34 + | +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/uninitialized-zeroed.rs:61:34 + | +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/uninitialized-zeroed.rs:63:25 + | +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/uninitialized-zeroed.rs:14:12 + | +LL | struct Ref(&'static i32); + | ^^^^^^^^^^^^ + +error: the type `Ref` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:64:25 + | +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/uninitialized-zeroed.rs:14:12 + | +LL | struct Ref(&'static i32); + | ^^^^^^^^^^^^ + +error: the type `fn()` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:66:26 + | +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/uninitialized-zeroed.rs:67:26 + | +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/uninitialized-zeroed.rs:69:32 + | +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/uninitialized-zeroed.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `Wrap<fn()>` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:70:32 + | +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/uninitialized-zeroed.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `WrapEnum<fn()>` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:72:36 + | +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 enum field) + --> $DIR/uninitialized-zeroed.rs:18:28 + | +LL | enum WrapEnum<T> { Wrapped(T) } + | ^ + +error: the type `WrapEnum<fn()>` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:73:36 + | +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 enum field) + --> $DIR/uninitialized-zeroed.rs:18:28 + | +LL | enum WrapEnum<T> { Wrapped(T) } + | ^ + +error: the type `Wrap<(RefPair, i32)>` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:75:42 + | +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/uninitialized-zeroed.rs:15:16 + | +LL | struct RefPair((&'static i32, i32)); + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `Wrap<(RefPair, i32)>` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:76:42 + | +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/uninitialized-zeroed.rs:15:16 + | +LL | struct RefPair((&'static i32, i32)); + | ^^^^^^^^^^^^^^^^^^^ + +error: the type `NonNull<i32>` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:78:34 + | +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/uninitialized-zeroed.rs:79:34 + | +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 `*const dyn Send` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:81:37 + | +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/uninitialized-zeroed.rs:82:37 + | +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/uninitialized-zeroed.rs:84:31 + | +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/uninitialized-zeroed.rs:85:31 + | +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 `bool` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:89:26 + | +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/uninitialized-zeroed.rs:92:32 + | +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/uninitialized-zeroed.rs:17:18 + | +LL | struct Wrap<T> { wrapped: T } + | ^^^^^^^^^^ + +error: the type `NonBig` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:95:28 + | +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/uninitialized-zeroed.rs:98:27 + | +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 have to be initialized to a variant + --> $DIR/uninitialized-zeroed.rs:26:1 + | +LL | enum Fruit { + | ^^^^^^^^^^ + +error: the type `[bool; 2]` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:101:31 + | +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 zero-initialization + --> $DIR/uninitialized-zeroed.rs:104:34 + | +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/uninitialized-zeroed.rs:105:36 + | +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/uninitialized-zeroed.rs:106:32 + | +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/uninitialized-zeroed.rs:109:34 + | +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/uninitialized-zeroed.rs:110:34 + | +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/uninitialized-zeroed.rs:111:26 + | +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 39 previous errors + |