rust/tests/ui/feature-gates/feature-gate-alloc-error-handler.stderr

error[E0658]: use of unstable library feature 'alloc_error_handler'
  --> $DIR/feature-gate-alloc-error-handler.rs:8:3
   |
LL | #[alloc_error_handler]
   |   ^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #51540 <https://github.com/rust-lang/rust/issues/51540> for more information
   = help: add `#![feature(alloc_error_handler)]` to the crate attributes to enable

error: aborting due to previous error

For more information about this error, try `rustc --explain E0658`.
Rewrite implementation of `#[alloc_error_handler]` The new implementation doesn't use weak lang items and instead changes `#[alloc_error_handler]` to an attribute macro just like `#[global_allocator]`. The attribute will generate the `__rg_oom` function which is called by the compiler-generated `__rust_alloc_error_handler`. If no `__rg_oom` function is defined in any crate then the compiler shim will call `__rdl_oom` in the alloc crate which will simply panic. This also fixes link errors with `-C link-dead-code` with `default_alloc_error_handler`: `__rg_oom` was previously defined in the alloc crate and would attempt to reference the `oom` lang item, even if it didn't exist. This worked as long as `__rg_oom` was excluded from linking since it was not called. This is a prerequisite for the stabilization of `default_alloc_error_handler` (#102318). 2022-10-14 02:24:58 +01:00			`error[E0658]: use of unstable library feature 'alloc_error_handler'`
			`--> $DIR/feature-gate-alloc-error-handler.rs:8:3`
Moved compile-fail tests to ui tests. 2018-08-08 14:28:26 +02:00			`\|`
Update tests 2019-03-09 15:03:44 +03:00			`LL \| #[alloc_error_handler]`
Rewrite implementation of `#[alloc_error_handler]` The new implementation doesn't use weak lang items and instead changes `#[alloc_error_handler]` to an attribute macro just like `#[global_allocator]`. The attribute will generate the `__rg_oom` function which is called by the compiler-generated `__rust_alloc_error_handler`. If no `__rg_oom` function is defined in any crate then the compiler shim will call `__rdl_oom` in the alloc crate which will simply panic. This also fixes link errors with `-C link-dead-code` with `default_alloc_error_handler`: `__rg_oom` was previously defined in the alloc crate and would attempt to reference the `oom` lang item, even if it didn't exist. This worked as long as `__rg_oom` was excluded from linking since it was not called. This is a prerequisite for the stabilization of `default_alloc_error_handler` (#102318). 2022-10-14 02:24:58 +01:00			`\| ^^^^^^^^^^^^^^^^^^^`
Moved compile-fail tests to ui tests. 2018-08-08 14:28:26 +02:00			`\|`
--bless --compare-mode=nll 2020-02-07 13:07:02 +01:00			`= note: see issue #51540 <https://github.com/rust-lang/rust/issues/51540> for more information`
normalize use of backticks in compiler messages for libsyntax/feature_gate https://github.com/rust-lang/rust/issues/60532 2019-07-09 11:32:08 +02:00			= help: add `#![feature(alloc_error_handler)]` to the crate attributes to enable
Moved compile-fail tests to ui tests. 2018-08-08 14:28:26 +02:00
			`error: aborting due to previous error`

			For more information about this error, try `rustc --explain E0658`.