test in a way that works even with musl
This commit is contained in:
Ralf Jung
parent
72d9fe8b0e
commit
3288be515f
2 changed files with 58 additions and 65 deletions
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@ -7,6 +7,7 @@
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#![deny(invalid_value)]
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use std::mem::{self, MaybeUninit};
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use std::ptr::NonNull;
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use std::num::NonZeroU32;
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enum Void {}
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@ -63,8 +64,8 @@ fn main() {
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let _val: Wrap<(RefPair, i32)> = mem::zeroed(); //~ ERROR: does not permit zero-initialization
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let _val: Wrap<(RefPair, i32)> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized
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let _val: Vec<i32> = mem::zeroed(); //~ ERROR: does not permit zero-initialization
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let _val: Vec<i32> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized
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let _val: NonNull<i32> = mem::zeroed(); //~ ERROR: does not permit zero-initialization
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let _val: NonNull<i32> = mem::uninitialized(); //~ ERROR: does not permit being left uninitialized
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// Things that can be zero, but not uninit.
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let _val: bool = mem::zeroed();
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@ -1,5 +1,5 @@
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error: the type `&'static T` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:28:32
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--> $DIR/uninitialized-zeroed.rs:29:32
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LL | let _val: &'static T = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -15,7 +15,7 @@ LL | #![deny(invalid_value)]
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= note: References must be non-null
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error: the type `&'static T` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:29:32
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--> $DIR/uninitialized-zeroed.rs:30:32
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LL | let _val: &'static T = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -26,7 +26,7 @@ LL | let _val: &'static T = mem::uninitialized();
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= note: References must be non-null
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error: the type `Wrap<&'static T>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:31:38
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--> $DIR/uninitialized-zeroed.rs:32:38
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LL | let _val: Wrap<&'static T> = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -35,13 +35,13 @@ LL | let _val: Wrap<&'static T> = mem::zeroed();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:17:18
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--> $DIR/uninitialized-zeroed.rs:18:18
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LL | struct Wrap<T> { wrapped: T }
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| ^^^^^^^^^^
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error: the type `Wrap<&'static T>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:32:38
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--> $DIR/uninitialized-zeroed.rs:33:38
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LL | let _val: Wrap<&'static T> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -50,13 +50,13 @@ LL | let _val: Wrap<&'static T> = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:17:18
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--> $DIR/uninitialized-zeroed.rs:18:18
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LL | struct Wrap<T> { wrapped: T }
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| ^^^^^^^^^^
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error: the type `!` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:39:23
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--> $DIR/uninitialized-zeroed.rs:40:23
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LL | let _val: ! = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -67,7 +67,7 @@ LL | let _val: ! = mem::zeroed();
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= note: The never type (`!`) has no valid value
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error: the type `!` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:40:23
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--> $DIR/uninitialized-zeroed.rs:41:23
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LL | let _val: ! = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -78,7 +78,7 @@ LL | let _val: ! = mem::uninitialized();
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= note: The never type (`!`) has no valid value
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error: the type `(i32, !)` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:42:30
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--> $DIR/uninitialized-zeroed.rs:43:30
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LL | let _val: (i32, !) = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -89,7 +89,7 @@ LL | let _val: (i32, !) = mem::zeroed();
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= note: The never type (`!`) has no valid value
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error: the type `(i32, !)` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:43:30
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--> $DIR/uninitialized-zeroed.rs:44:30
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LL | let _val: (i32, !) = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -100,7 +100,7 @@ LL | let _val: (i32, !) = mem::uninitialized();
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= note: The never type (`!`) has no valid value
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error: the type `Void` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:45:26
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--> $DIR/uninitialized-zeroed.rs:46:26
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LL | let _val: Void = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -111,7 +111,7 @@ LL | let _val: Void = mem::zeroed();
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= note: 0-variant enums have no valid value
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error: the type `Void` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:46:26
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--> $DIR/uninitialized-zeroed.rs:47:26
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LL | let _val: Void = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -122,7 +122,7 @@ LL | let _val: Void = mem::uninitialized();
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= note: 0-variant enums have no valid value
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error: the type `&'static i32` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:48:34
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--> $DIR/uninitialized-zeroed.rs:49:34
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LL | let _val: &'static i32 = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -133,7 +133,7 @@ LL | let _val: &'static i32 = mem::zeroed();
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= note: References must be non-null
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error: the type `&'static i32` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:49:34
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--> $DIR/uninitialized-zeroed.rs:50:34
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LL | let _val: &'static i32 = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -144,7 +144,7 @@ LL | let _val: &'static i32 = mem::uninitialized();
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= note: References must be non-null
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error: the type `Ref` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:51:25
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--> $DIR/uninitialized-zeroed.rs:52:25
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LL | let _val: Ref = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -153,13 +153,13 @@ LL | let _val: Ref = mem::zeroed();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:14:12
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--> $DIR/uninitialized-zeroed.rs:15:12
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LL | struct Ref(&'static i32);
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| ^^^^^^^^^^^^
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error: the type `Ref` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:52:25
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--> $DIR/uninitialized-zeroed.rs:53:25
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LL | let _val: Ref = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -168,13 +168,13 @@ LL | let _val: Ref = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:14:12
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--> $DIR/uninitialized-zeroed.rs:15:12
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LL | struct Ref(&'static i32);
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| ^^^^^^^^^^^^
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error: the type `fn()` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:54:26
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--> $DIR/uninitialized-zeroed.rs:55:26
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LL | let _val: fn() = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -185,7 +185,7 @@ LL | let _val: fn() = mem::zeroed();
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= note: Function pointers must be non-null
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error: the type `fn()` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:55:26
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--> $DIR/uninitialized-zeroed.rs:56:26
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LL | let _val: fn() = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -196,7 +196,7 @@ LL | let _val: fn() = mem::uninitialized();
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= note: Function pointers must be non-null
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error: the type `Wrap<fn()>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:57:32
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--> $DIR/uninitialized-zeroed.rs:58:32
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LL | let _val: Wrap<fn()> = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -205,13 +205,13 @@ LL | let _val: Wrap<fn()> = mem::zeroed();
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| help: use `MaybeUninit<T>` instead
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note: Function pointers must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:17:18
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--> $DIR/uninitialized-zeroed.rs:18:18
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LL | struct Wrap<T> { wrapped: T }
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| ^^^^^^^^^^
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error: the type `Wrap<fn()>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:58:32
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--> $DIR/uninitialized-zeroed.rs:59:32
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LL | let _val: Wrap<fn()> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -220,13 +220,13 @@ LL | let _val: Wrap<fn()> = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: Function pointers must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:17:18
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--> $DIR/uninitialized-zeroed.rs:18:18
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LL | struct Wrap<T> { wrapped: T }
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| ^^^^^^^^^^
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error: the type `WrapEnum<fn()>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:60:36
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--> $DIR/uninitialized-zeroed.rs:61:36
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LL | let _val: WrapEnum<fn()> = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -235,13 +235,13 @@ LL | let _val: WrapEnum<fn()> = mem::zeroed();
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| help: use `MaybeUninit<T>` instead
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note: Function pointers must be non-null (in this enum field)
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--> $DIR/uninitialized-zeroed.rs:18:28
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--> $DIR/uninitialized-zeroed.rs:19:28
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LL | enum WrapEnum<T> { Wrapped(T) }
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| ^
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error: the type `WrapEnum<fn()>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:61:36
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--> $DIR/uninitialized-zeroed.rs:62:36
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LL | let _val: WrapEnum<fn()> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -250,13 +250,13 @@ LL | let _val: WrapEnum<fn()> = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: Function pointers must be non-null (in this enum field)
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--> $DIR/uninitialized-zeroed.rs:18:28
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--> $DIR/uninitialized-zeroed.rs:19:28
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LL | enum WrapEnum<T> { Wrapped(T) }
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| ^
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error: the type `Wrap<(RefPair, i32)>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:63:42
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--> $DIR/uninitialized-zeroed.rs:64:42
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LL | let _val: Wrap<(RefPair, i32)> = mem::zeroed();
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| ^^^^^^^^^^^^^
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@ -265,13 +265,13 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::zeroed();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:15:16
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--> $DIR/uninitialized-zeroed.rs:16:16
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LL | struct RefPair((&'static i32, i32));
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| ^^^^^^^^^^^^^^^^^^^
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error: the type `Wrap<(RefPair, i32)>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:64:42
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--> $DIR/uninitialized-zeroed.rs:65:42
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LL | let _val: Wrap<(RefPair, i32)> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -280,43 +280,35 @@ LL | let _val: Wrap<(RefPair, i32)> = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: References must be non-null (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:15:16
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--> $DIR/uninitialized-zeroed.rs:16:16
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LL | struct RefPair((&'static i32, i32));
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| ^^^^^^^^^^^^^^^^^^^
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error: the type `std::vec::Vec<i32>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:66:30
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error: the type `std::ptr::NonNull<i32>` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:67:34
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LL | let _val: Vec<i32> = mem::zeroed();
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| ^^^^^^^^^^^^^
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| |
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| this code causes undefined behavior when executed
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| help: use `MaybeUninit<T>` instead
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LL | let _val: NonNull<i32> = mem::zeroed();
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| ^^^^^^^^^^^^^
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| |
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| this code causes undefined behavior when executed
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| help: use `MaybeUninit<T>` instead
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note: std::ptr::Unique<i32> must be non-null (in this struct field)
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--> $SRC_DIR/liballoc/raw_vec.rs:LL:COL
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LL | ptr: Unique<T>,
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| ^^^^^^^^^^^^^^
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= note: std::ptr::NonNull<i32> must be non-null
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error: the type `std::vec::Vec<i32>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:67:30
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error: the type `std::ptr::NonNull<i32>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:68:34
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LL | let _val: Vec<i32> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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| |
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| this code causes undefined behavior when executed
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| help: use `MaybeUninit<T>` instead
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LL | let _val: NonNull<i32> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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| |
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| this code causes undefined behavior when executed
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| help: use `MaybeUninit<T>` instead
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note: std::ptr::Unique<i32> must be non-null (in this struct field)
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--> $SRC_DIR/liballoc/raw_vec.rs:LL:COL
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LL | ptr: Unique<T>,
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| ^^^^^^^^^^^^^^
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= note: std::ptr::NonNull<i32> must be non-null
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error: the type `bool` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:71:26
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--> $DIR/uninitialized-zeroed.rs:72:26
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LL | let _val: bool = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -327,7 +319,7 @@ LL | let _val: bool = mem::uninitialized();
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= note: Booleans must be `true` or `false`
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error: the type `Wrap<char>` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:74:32
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--> $DIR/uninitialized-zeroed.rs:75:32
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LL | let _val: Wrap<char> = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -336,13 +328,13 @@ LL | let _val: Wrap<char> = mem::uninitialized();
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| help: use `MaybeUninit<T>` instead
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note: Characters must be a valid unicode codepoint (in this struct field)
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--> $DIR/uninitialized-zeroed.rs:17:18
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--> $DIR/uninitialized-zeroed.rs:18:18
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LL | struct Wrap<T> { wrapped: T }
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| ^^^^^^^^^^
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error: the type `NonBig` does not permit being left uninitialized
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--> $DIR/uninitialized-zeroed.rs:77:28
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--> $DIR/uninitialized-zeroed.rs:78:28
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LL | let _val: NonBig = mem::uninitialized();
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| ^^^^^^^^^^^^^^^^^^^^
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@ -353,7 +345,7 @@ LL | let _val: NonBig = mem::uninitialized();
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= note: NonBig must be initialized inside its custom valid range
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error: the type `&'static i32` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:80:34
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--> $DIR/uninitialized-zeroed.rs:81:34
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LL | let _val: &'static i32 = mem::transmute(0usize);
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| ^^^^^^^^^^^^^^^^^^^^^^
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@ -364,7 +356,7 @@ LL | let _val: &'static i32 = mem::transmute(0usize);
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= note: References must be non-null
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error: the type `&'static [i32]` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:81:36
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--> $DIR/uninitialized-zeroed.rs:82:36
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LL | let _val: &'static [i32] = mem::transmute((0usize, 0usize));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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@ -375,7 +367,7 @@ LL | let _val: &'static [i32] = mem::transmute((0usize, 0usize));
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= note: References must be non-null
|
||||
|
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error: the type `std::num::NonZeroU32` does not permit zero-initialization
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--> $DIR/uninitialized-zeroed.rs:82:32
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--> $DIR/uninitialized-zeroed.rs:83:32
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|
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LL | let _val: NonZeroU32 = mem::transmute(0);
|
||||
| ^^^^^^^^^^^^^^^^^
|
||||
|
|
|
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