diff options
| -rw-r--r-- | src/test/ui/lint/uninitialized-zeroed.rs | 5 | ||||
| -rw-r--r-- | src/test/ui/lint/uninitialized-zeroed.stderr | 118 |
2 files changed, 58 insertions, 65 deletions
diff --git a/src/test/ui/lint/uninitialized-zeroed.rs b/src/test/ui/lint/uninitialized-zeroed.rs index 54e1210768c..5cf62b86912 100644 --- a/src/test/ui/lint/uninitialized-zeroed.rs +++ b/src/test/ui/lint/uninitialized-zeroed.rs @@ -7,6 +7,7 @@ #![deny(invalid_value)] use std::mem::{self, MaybeUninit}; +use std::ptr::NonNull; use std::num::NonZeroU32; enum Void {} @@ -63,8 +64,8 @@ fn main() { let _val: Wrap<(RefPair, i32)> = mem::zeroed(); //~ ERROR: does not permit zero-initialization let _val: Wrap<(RefPair, i32)> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized - let _val: Vec<i32> = mem::zeroed(); //~ ERROR: does not permit zero-initialization - let _val: Vec<i32> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized + let _val: NonNull<i32> = mem::zeroed(); //~ ERROR: does not permit zero-initialization + let _val: NonNull<i32> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized // Things that can be zero, but not uninit. let _val: bool = mem::zeroed(); diff --git a/src/test/ui/lint/uninitialized-zeroed.stderr b/src/test/ui/lint/uninitialized-zeroed.stderr index 90a51ba57e9..a36a32a39a1 100644 --- a/src/test/ui/lint/uninitialized-zeroed.stderr +++ b/src/test/ui/lint/uninitialized-zeroed.stderr @@ -1,5 +1,5 @@ error: the type `&'static T` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:28:32 + --> $DIR/uninitialized-zeroed.rs:29:32 | LL | let _val: &'static T = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -15,7 +15,7 @@ LL | #![deny(invalid_value)] = note: References must be non-null error: the type `&'static T` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:29:32 + --> $DIR/uninitialized-zeroed.rs:30:32 | LL | let _val: &'static T = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL | let _val: &'static T = mem::uninitialized(); = note: References must be non-null error: the type `Wrap<&'static T>` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:31:38 + --> $DIR/uninitialized-zeroed.rs:32:38 | LL | let _val: Wrap<&'static T> = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -35,13 +35,13 @@ LL | let _val: Wrap<&'static T> = mem::zeroed(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:17:18 + --> $DIR/uninitialized-zeroed.rs:18:18 | LL | struct Wrap<T> { wrapped: T } | ^^^^^^^^^^ error: the type `Wrap<&'static T>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:32:38 + --> $DIR/uninitialized-zeroed.rs:33:38 | LL | let _val: Wrap<&'static T> = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -50,13 +50,13 @@ LL | let _val: Wrap<&'static T> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:17:18 + --> $DIR/uninitialized-zeroed.rs:18:18 | LL | struct Wrap<T> { wrapped: T } | ^^^^^^^^^^ error: the type `!` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:39:23 + --> $DIR/uninitialized-zeroed.rs:40:23 | LL | let _val: ! = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -67,7 +67,7 @@ LL | let _val: ! = mem::zeroed(); = note: The never type (`!`) has no valid value error: the type `!` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:40:23 + --> $DIR/uninitialized-zeroed.rs:41:23 | LL | let _val: ! = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -78,7 +78,7 @@ LL | let _val: ! = mem::uninitialized(); = note: The never type (`!`) has no valid value error: the type `(i32, !)` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:42:30 + --> $DIR/uninitialized-zeroed.rs:43:30 | LL | let _val: (i32, !) = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -89,7 +89,7 @@ LL | let _val: (i32, !) = mem::zeroed(); = note: The never type (`!`) has no valid value error: the type `(i32, !)` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:43:30 + --> $DIR/uninitialized-zeroed.rs:44:30 | LL | let _val: (i32, !) = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -100,7 +100,7 @@ LL | let _val: (i32, !) = mem::uninitialized(); = note: The never type (`!`) has no valid value error: the type `Void` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:45:26 + --> $DIR/uninitialized-zeroed.rs:46:26 | LL | let _val: Void = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -111,7 +111,7 @@ LL | let _val: Void = mem::zeroed(); = note: 0-variant enums have no valid value error: the type `Void` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:46:26 + --> $DIR/uninitialized-zeroed.rs:47:26 | LL | let _val: Void = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -122,7 +122,7 @@ LL | let _val: Void = mem::uninitialized(); = note: 0-variant enums have no valid value error: the type `&'static i32` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:48:34 + --> $DIR/uninitialized-zeroed.rs:49:34 | LL | let _val: &'static i32 = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -133,7 +133,7 @@ LL | let _val: &'static i32 = mem::zeroed(); = note: References must be non-null error: the type `&'static i32` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:49:34 + --> $DIR/uninitialized-zeroed.rs:50:34 | LL | let _val: &'static i32 = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -144,7 +144,7 @@ LL | let _val: &'static i32 = mem::uninitialized(); = note: References must be non-null error: the type `Ref` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:51:25 + --> $DIR/uninitialized-zeroed.rs:52:25 | LL | let _val: Ref = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -153,13 +153,13 @@ LL | let _val: Ref = mem::zeroed(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:14:12 + --> $DIR/uninitialized-zeroed.rs:15:12 | LL | struct Ref(&'static i32); | ^^^^^^^^^^^^ error: the type `Ref` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:52:25 + --> $DIR/uninitialized-zeroed.rs:53:25 | LL | let _val: Ref = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -168,13 +168,13 @@ LL | let _val: Ref = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:14:12 + --> $DIR/uninitialized-zeroed.rs:15:12 | LL | struct Ref(&'static i32); | ^^^^^^^^^^^^ error: the type `fn()` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:54:26 + --> $DIR/uninitialized-zeroed.rs:55:26 | LL | let _val: fn() = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -185,7 +185,7 @@ LL | let _val: fn() = mem::zeroed(); = note: Function pointers must be non-null error: the type `fn()` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:55:26 + --> $DIR/uninitialized-zeroed.rs:56:26 | LL | let _val: fn() = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -196,7 +196,7 @@ LL | let _val: fn() = mem::uninitialized(); = note: Function pointers must be non-null error: the type `Wrap<fn()>` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:57:32 + --> $DIR/uninitialized-zeroed.rs:58:32 | LL | let _val: Wrap<fn()> = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -205,13 +205,13 @@ LL | let _val: Wrap<fn()> = mem::zeroed(); | help: use `MaybeUninit<T>` instead | note: Function pointers must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:17:18 + --> $DIR/uninitialized-zeroed.rs:18:18 | LL | struct Wrap<T> { wrapped: T } | ^^^^^^^^^^ error: the type `Wrap<fn()>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:58:32 + --> $DIR/uninitialized-zeroed.rs:59:32 | LL | let _val: Wrap<fn()> = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -220,13 +220,13 @@ LL | let _val: Wrap<fn()> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: Function pointers must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:17:18 + --> $DIR/uninitialized-zeroed.rs:18:18 | LL | struct Wrap<T> { wrapped: T } | ^^^^^^^^^^ error: the type `WrapEnum<fn()>` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:60:36 + --> $DIR/uninitialized-zeroed.rs:61:36 | LL | let _val: WrapEnum<fn()> = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -235,13 +235,13 @@ LL | let _val: WrapEnum<fn()> = mem::zeroed(); | help: use `MaybeUninit<T>` instead | note: Function pointers must be non-null (in this enum field) - --> $DIR/uninitialized-zeroed.rs:18:28 + --> $DIR/uninitialized-zeroed.rs:19:28 | LL | enum WrapEnum<T> { Wrapped(T) } | ^ error: the type `WrapEnum<fn()>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:61:36 + --> $DIR/uninitialized-zeroed.rs:62:36 | LL | let _val: WrapEnum<fn()> = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -250,13 +250,13 @@ LL | let _val: WrapEnum<fn()> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: Function pointers must be non-null (in this enum field) - --> $DIR/uninitialized-zeroed.rs:18:28 + --> $DIR/uninitialized-zeroed.rs:19:28 | LL | enum WrapEnum<T> { Wrapped(T) } | ^ error: the type `Wrap<(RefPair, i32)>` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:63:42 + --> $DIR/uninitialized-zeroed.rs:64:42 | LL | let _val: Wrap<(RefPair, i32)> = mem::zeroed(); | ^^^^^^^^^^^^^ @@ -265,13 +265,13 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::zeroed(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:15:16 + --> $DIR/uninitialized-zeroed.rs:16:16 | LL | struct RefPair((&'static i32, i32)); | ^^^^^^^^^^^^^^^^^^^ error: the type `Wrap<(RefPair, i32)>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:64:42 + --> $DIR/uninitialized-zeroed.rs:65:42 | LL | let _val: Wrap<(RefPair, i32)> = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -280,43 +280,35 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: References must be non-null (in this struct field) - --> $DIR/uninitialized-zeroed.rs:15:16 + --> $DIR/uninitialized-zeroed.rs:16:16 | LL | struct RefPair((&'static i32, i32)); | ^^^^^^^^^^^^^^^^^^^ -error: the type `std::vec::Vec<i32>` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:66:30 - | -LL | let _val: Vec<i32> = mem::zeroed(); - | ^^^^^^^^^^^^^ - | | - | this code causes undefined behavior when executed - | help: use `MaybeUninit<T>` instead +error: the type `std::ptr::NonNull<i32>` does not permit zero-initialization + --> $DIR/uninitialized-zeroed.rs:67:34 | -note: std::ptr::Unique<i32> must be non-null (in this struct field) - --> $SRC_DIR/liballoc/raw_vec.rs:LL:COL +LL | let _val: NonNull<i32> = mem::zeroed(); + | ^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead | -LL | ptr: Unique<T>, - | ^^^^^^^^^^^^^^ + = note: std::ptr::NonNull<i32> must be non-null -error: the type `std::vec::Vec<i32>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:67:30 - | -LL | let _val: Vec<i32> = mem::uninitialized(); - | ^^^^^^^^^^^^^^^^^^^^ - | | - | this code causes undefined behavior when executed - | help: use `MaybeUninit<T>` instead +error: the type `std::ptr::NonNull<i32>` does not permit being left uninitialized + --> $DIR/uninitialized-zeroed.rs:68:34 | -note: std::ptr::Unique<i32> must be non-null (in this struct field) - --> $SRC_DIR/liballoc/raw_vec.rs:LL:COL +LL | let _val: NonNull<i32> = mem::uninitialized(); + | ^^^^^^^^^^^^^^^^^^^^ + | | + | this code causes undefined behavior when executed + | help: use `MaybeUninit<T>` instead | -LL | ptr: Unique<T>, - | ^^^^^^^^^^^^^^ + = note: std::ptr::NonNull<i32> must be non-null error: the type `bool` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:71:26 + --> $DIR/uninitialized-zeroed.rs:72:26 | LL | let _val: bool = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -327,7 +319,7 @@ LL | let _val: bool = mem::uninitialized(); = note: Booleans must be `true` or `false` error: the type `Wrap<char>` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:74:32 + --> $DIR/uninitialized-zeroed.rs:75:32 | LL | let _val: Wrap<char> = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -336,13 +328,13 @@ LL | let _val: Wrap<char> = mem::uninitialized(); | help: use `MaybeUninit<T>` instead | note: Characters must be a valid unicode codepoint (in this struct field) - --> $DIR/uninitialized-zeroed.rs:17:18 + --> $DIR/uninitialized-zeroed.rs:18:18 | LL | struct Wrap<T> { wrapped: T } | ^^^^^^^^^^ error: the type `NonBig` does not permit being left uninitialized - --> $DIR/uninitialized-zeroed.rs:77:28 + --> $DIR/uninitialized-zeroed.rs:78:28 | LL | let _val: NonBig = mem::uninitialized(); | ^^^^^^^^^^^^^^^^^^^^ @@ -353,7 +345,7 @@ LL | let _val: NonBig = mem::uninitialized(); = note: NonBig must be initialized inside its custom valid range error: the type `&'static i32` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:80:34 + --> $DIR/uninitialized-zeroed.rs:81:34 | LL | let _val: &'static i32 = mem::transmute(0usize); | ^^^^^^^^^^^^^^^^^^^^^^ @@ -364,7 +356,7 @@ LL | let _val: &'static i32 = mem::transmute(0usize); = note: References must be non-null error: the type `&'static [i32]` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:81:36 + --> $DIR/uninitialized-zeroed.rs:82:36 | LL | let _val: &'static [i32] = mem::transmute((0usize, 0usize)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -375,7 +367,7 @@ LL | let _val: &'static [i32] = mem::transmute((0usize, 0usize)); = note: References must be non-null error: the type `std::num::NonZeroU32` does not permit zero-initialization - --> $DIR/uninitialized-zeroed.rs:82:32 + --> $DIR/uninitialized-zeroed.rs:83:32 | LL | let _val: NonZeroU32 = mem::transmute(0); | ^^^^^^^^^^^^^^^^^ |