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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-05-01 22:27:24 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-05-01 22:27:24 +0200 |
| commit | 6cb75d88ebe12675eb359d7c0ecf73cb55ff4ccc (patch) | |
| tree | f9defb0a63cfdffd2f1b3f6a0c2edfd0d06173b7 /tests/ui | |
| parent | 786a53d2dbc5fa34d20b541176976ddf421ddd31 (diff) | |
| parent | 86c6e7911d2ccf69f8306f5bfb10233025dc8e22 (diff) | |
| download | rust-6cb75d88ebe12675eb359d7c0ecf73cb55ff4ccc.tar.gz rust-6cb75d88ebe12675eb359d7c0ecf73cb55ff4ccc.zip | |
Rollup merge of #140544 - m-ou-se:format-args-const-cleanup, r=fee1-dead
Clean up "const" situation in format_args!().
This cleans up the "const" situation in the format_args!() expansion/lowering.
Rather than marking the Argument::new_display etc. functions as non-const, this marks the Arguments::new_v1 functions as non-const.
Example expansion/lowering of format_args!() in const:
```rust
// Error: cannot call non-const formatting macro in constant functions
const {
fmt::Arguments::new_v1( // Now the error is produced here.
&["Hello, ", "!\n"],
&[
fmt::Argument::new_display(&world) // The error used to be produced here.
],
)
}
```
Diffstat (limited to 'tests/ui')
| -rw-r--r-- | tests/ui/consts/const-eval/format.stderr | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tests/ui/consts/const-eval/format.stderr b/tests/ui/consts/const-eval/format.stderr index 4c4cbb372a7..2f202705b7f 100644 --- a/tests/ui/consts/const-eval/format.stderr +++ b/tests/ui/consts/const-eval/format.stderr @@ -1,16 +1,16 @@ error[E0015]: cannot call non-const formatting macro in constant functions - --> $DIR/format.rs:2:13 + --> $DIR/format.rs:2:5 | LL | panic!("{:?}", 0); - | ^^^^ + | ^^^^^^^^^^^^^^^^^ | = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants error[E0015]: cannot call non-const formatting macro in constant functions - --> $DIR/format.rs:7:15 + --> $DIR/format.rs:7:5 | LL | println!("{:?}", 0); - | ^^^^ + | ^^^^^^^^^^^^^^^^^^^ | = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) |