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Add new const_format_args!() macro and use it in panics.

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This commit is contained in:
Mara Bos 2021-07-09 16:45:50 +02:00
parent 76cf1b8bd0
commit b64c4f9560
9 changed files with 36 additions and 11 deletions
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1
src/test/ui/borrowck/issue-64453.rs
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@ -3,6 +3,7 @@ struct Value;
static settings_dir: String = format!("");
//~^ ERROR calls in statics are limited to constant functions
//~| ERROR is not yet stable as a const
fn from_string(_: String) -> Value {
Value

13
src/test/ui/borrowck/issue-64453.stderr
View file

@ -1,9 +1,18 @@
error[E0507]: cannot move out of static item `settings_dir`
--> $DIR/issue-64453.rs:13:37
--> $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: `Arguments::<'a>::new_v1` 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` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0015]: calls in statics are limited to constant functions, tuple structs and tuple variants
--> $DIR/issue-64453.rs:4:31
|
@ -12,7 +21,7 @@ LL | static settings_dir: String = format!("");
|
= note: this error originates in the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
error: aborting due to 2 previous errors
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0015, E0507.
For more information about an error, try `rustc --explain E0015`.