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rust/tests/ui/consts/const-eval/heap/alloc_intrinsic_errors.stderr

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Use the informative error as the main const eval error message
2025-05-28 10:29:08 +00:00
error[E0080]: invalid align passed to `const_allocate`: 3 is not a power of 2
compiletest: Make diagnostic kind mandatory on line annotations
2025-04-05 19:19:56 +03:00
--> $DIR/alloc_intrinsic_errors.rs:7:18
review comments
2020-12-01 19:48:09 +05:30
|
Shorten span of panic failures in const context Previously, we included a redundant prefix on the panic message and a postfix of the location of the panic. The prefix didn't carry any additional information beyond "something failed", and the location of the panic is redundant with the diagnostic's span, which gets printed out even if its code is not shown. ``` error[E0080]: evaluation of constant value failed --> $DIR/assert-type-intrinsics.rs:11:9 | LL | MaybeUninit::<!>::uninit().assume_init(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation panicked: aborted execution: attempted to instantiate uninhabited type `!` ``` ``` error[E0080]: evaluation of `Fail::<i32>::C` failed --> $DIR/collect-in-dead-closure.rs:9:19 | LL | const C: () = panic!(); | ^^^^^^^^ evaluation panicked: explicit panic | = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` ``` error[E0080]: evaluation of constant value failed --> $DIR/uninhabited.rs:41:9 | LL | assert!(false); | ^^^^^^^^^^^^^^ evaluation panicked: assertion failed: false | = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info) ``` --- When the primary span for a const error is the same as the first frame in the const error report, skip it. ``` error[E0080]: evaluation of constant value failed --> $DIR/issue-88434-removal-index-should-be-less.rs:3:24 | LL | const _CONST: &[u8] = &f(&[], |_| {}); | ^^^^^^^^^^^^^^ evaluation panicked: explicit panic | note: inside `f::<{closure@$DIR/issue-88434-removal-index-should-be-less.rs:3:31: 3:34}>` --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ the failure occurred here = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` instead of ``` error[E0080]: evaluation of constant value failed --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ explicit panic | note: inside `f::<{closure@$DIR/issue-88434-removal-index-should-be-less.rs:3:31: 3:34}>` --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ note: inside `_CONST` --> $DIR/issue-88434-removal-index-should-be-less.rs:3:24 | LL | const _CONST: &[u8] = &f(&[], |_| {}); | ^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` --- Revert order of constant evaluation errors Point at the code the user wrote first and std functions last. ``` error[E0080]: evaluation of constant value failed --> $DIR/const-errs-dont-conflict-103369.rs:5:25 | LL | impl ConstGenericTrait<{my_fn(1)}> for () {} | ^^^^^^^^ evaluation panicked: Some error occurred | note: called from `my_fn` --> $DIR/const-errs-dont-conflict-103369.rs:10:5 | LL | panic!("Some error occurred"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` instead of ``` error[E0080]: evaluation of constant value failed --> $DIR/const-errs-dont-conflict-103369.rs:10:5 | LL | panic!("Some error occurred"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Some error occurred | note: called from `<() as ConstGenericTrait<{my_fn(1)}>>::{constant#0}` --> $DIR/const-errs-dont-conflict-103369.rs:5:25 | LL | impl ConstGenericTrait<{my_fn(1)}> for () {} | ^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ```
2025-02-03 18:43:55 +00:00
LL | const FOO: i32 = foo();
const-eval error: always say in which item the error occurred also adjust the wording a little so that we don't say "the error occurred here" for two different spans
2025-06-07 11:32:09 +02:00
| ^^^^^ evaluation of `FOO` failed inside this call
Change CTFE backtraces to use `note` instead of `label` to preserve their order labels are reordered within the file in which they are reported, which can mess up the stack trace
2022-11-29 13:10:42 +00:00
|
note: inside `foo`
compiletest: Make diagnostic kind mandatory on line annotations
2025-04-05 19:19:56 +03:00
--> $DIR/alloc_intrinsic_errors.rs:10:17
Change CTFE backtraces to use `note` instead of `label` to preserve their order labels are reordered within the file in which they are reported, which can mess up the stack trace
2022-11-29 13:10:42 +00:00
|
`const_deallocate`: Don't deallocate memory allocated in an another const. Does nothing at runtime. `const_allocate`: Returns a null pointer at runtime.
2022-01-26 13:06:09 +09:00
LL | let _ = intrinsics::const_allocate(4, 3) as *mut i32;
Shorten span of panic failures in const context Previously, we included a redundant prefix on the panic message and a postfix of the location of the panic. The prefix didn't carry any additional information beyond "something failed", and the location of the panic is redundant with the diagnostic's span, which gets printed out even if its code is not shown. ``` error[E0080]: evaluation of constant value failed --> $DIR/assert-type-intrinsics.rs:11:9 | LL | MaybeUninit::<!>::uninit().assume_init(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation panicked: aborted execution: attempted to instantiate uninhabited type `!` ``` ``` error[E0080]: evaluation of `Fail::<i32>::C` failed --> $DIR/collect-in-dead-closure.rs:9:19 | LL | const C: () = panic!(); | ^^^^^^^^ evaluation panicked: explicit panic | = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` ``` error[E0080]: evaluation of constant value failed --> $DIR/uninhabited.rs:41:9 | LL | assert!(false); | ^^^^^^^^^^^^^^ evaluation panicked: assertion failed: false | = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info) ``` --- When the primary span for a const error is the same as the first frame in the const error report, skip it. ``` error[E0080]: evaluation of constant value failed --> $DIR/issue-88434-removal-index-should-be-less.rs:3:24 | LL | const _CONST: &[u8] = &f(&[], |_| {}); | ^^^^^^^^^^^^^^ evaluation panicked: explicit panic | note: inside `f::<{closure@$DIR/issue-88434-removal-index-should-be-less.rs:3:31: 3:34}>` --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ the failure occurred here = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` instead of ``` error[E0080]: evaluation of constant value failed --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ explicit panic | note: inside `f::<{closure@$DIR/issue-88434-removal-index-should-be-less.rs:3:31: 3:34}>` --> $DIR/issue-88434-removal-index-should-be-less.rs:10:5 | LL | panic!() | ^^^^^^^^ note: inside `_CONST` --> $DIR/issue-88434-removal-index-should-be-less.rs:3:24 | LL | const _CONST: &[u8] = &f(&[], |_| {}); | ^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` --- Revert order of constant evaluation errors Point at the code the user wrote first and std functions last. ``` error[E0080]: evaluation of constant value failed --> $DIR/const-errs-dont-conflict-103369.rs:5:25 | LL | impl ConstGenericTrait<{my_fn(1)}> for () {} | ^^^^^^^^ evaluation panicked: Some error occurred | note: called from `my_fn` --> $DIR/const-errs-dont-conflict-103369.rs:10:5 | LL | panic!("Some error occurred"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ``` instead of ``` error[E0080]: evaluation of constant value failed --> $DIR/const-errs-dont-conflict-103369.rs:10:5 | LL | panic!("Some error occurred"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Some error occurred | note: called from `<() as ConstGenericTrait<{my_fn(1)}>>::{constant#0}` --> $DIR/const-errs-dont-conflict-103369.rs:5:25 | LL | impl ConstGenericTrait<{my_fn(1)}> for () {} | ^^^^^^^^ = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) ```
2025-02-03 18:43:55 +00:00
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the failure occurred here
review comments
2020-12-01 19:48:09 +05:30
Show number in error message even for one error Co-authored-by: Adrian <adrian.iosdev@gmail.com>
2023-11-21 15:44:16 +00:00
error: aborting due to 1 previous error
review comments
2020-12-01 19:48:09 +05:30
bless you
2021-06-18 19:31:56 +02:00
For more information about this error, try `rustc --explain E0080`.
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