rust/tests/ui/borrowck/issue-64453.stderr
Mara Bos f2f6bcc499 Don't allow new const panic through format flattening.
panic!("a {}", "b") is still not allowed in const,
even if the hir flattens to panic!("a b").
2023-03-16 11:21:50 +01:00

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error: `Arguments::<'a>::new_const` is not yet stable as a const fn
--> $DIR/issue-64453.rs:4:31
|
LL | static settings_dir: String = format!("");
| ^^^^^^^^^^^
|
= help: add `#![feature(const_fmt_arguments_new)]` to the crate attributes to enable
= note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0015]: cannot call non-const fn `format` in statics
--> $DIR/issue-64453.rs:4:31
|
LL | static settings_dir: String = format!("");
| ^^^^^^^^^^^
|
= note: calls in statics are limited to constant functions, tuple structs and tuple variants
= note: consider wrapping this expression in `Lazy::new(|| ...)` from the `once_cell` crate: https://crates.io/crates/once_cell
= note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0507]: cannot move out of static item `settings_dir`
--> $DIR/issue-64453.rs:14:37
|
LL | let settings_data = from_string(settings_dir);
| ^^^^^^^^^^^^ move occurs because `settings_dir` has type `String`, which does not implement the `Copy` trait
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0015, E0507.
For more information about an error, try `rustc --explain E0015`.