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| author | Lukas Markeffsky <@> | 2023-09-06 16:32:06 +0200 |
|---|---|---|
| committer | Lukas Markeffsky <@> | 2023-09-06 18:55:45 +0200 |
| commit | d990eee0c8ae2ce465351b00abbdb8bfdd1caf4b (patch) | |
| tree | 8eb9fa6bf3359c2e9b1c1765465f153f41b3733e /tests/ui/fmt | |
| parent | a0c28cd9dc99d9acb015d06f6b27c640adad3550 (diff) | |
| download | rust-d990eee0c8ae2ce465351b00abbdb8bfdd1caf4b.tar.gz rust-d990eee0c8ae2ce465351b00abbdb8bfdd1caf4b.zip | |
add diagnostic for raw identifiers in format string
Diffstat (limited to 'tests/ui/fmt')
| -rw-r--r-- | tests/ui/fmt/raw-idents.rs | 17 | ||||
| -rw-r--r-- | tests/ui/fmt/raw-idents.stderr | 44 |
2 files changed, 61 insertions, 0 deletions
diff --git a/tests/ui/fmt/raw-idents.rs b/tests/ui/fmt/raw-idents.rs new file mode 100644 index 00000000000..29a74c55a4a --- /dev/null +++ b/tests/ui/fmt/raw-idents.rs @@ -0,0 +1,17 @@ +// Regression test for https://github.com/rust-lang/rust/issues/115466 + +// The "identifier" in format strings is parsed as an IDENTIFIER_OR_KEYWORD, not an IDENTIFIER. +// Test that there is an actionable diagnostic if a RAW_IDENTIFIER is used instead. + +fn main() { + let r#type = "foobar"; + println!("It is {r#type}"); //~ ERROR: invalid format string: raw identifiers are not supported + println!(r##"It still is {r#type}"##); //~ ERROR: invalid format string: raw identifiers are not supported + println!(concat!("{r#", "type}")); //~ ERROR: invalid format string: raw identifiers are not supported + println!("{\x72\x23type:?}"); //~ ERROR: invalid format string: raw identifiers are not supported + + // OK + println!("{type}"); + println!("{let}", let = r#type); + println!("{let}", r#let = r#type); +} diff --git a/tests/ui/fmt/raw-idents.stderr b/tests/ui/fmt/raw-idents.stderr new file mode 100644 index 00000000000..2ddc114d286 --- /dev/null +++ b/tests/ui/fmt/raw-idents.stderr @@ -0,0 +1,44 @@ +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:8:22 + | +LL | println!("It is {r#type}"); + | --^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:9:31 + | +LL | println!(r##"It still is {r#type}"##); + | --^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:10:14 + | +LL | println!(concat!("{r#", "type}")); + | ^^^^^^^^^^^^^^^^^^^^^^^ raw identifier used here in format string + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + = note: this error originates in the macro `concat` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: invalid format string: raw identifiers are not supported + --> $DIR/raw-idents.rs:11:16 + | +LL | println!("{\x72\x23type:?}"); + | --------^^^^ + | | + | raw identifier used here in format string + | help: remove the `r#` + | + = note: identifiers in format strings can be keywords and don't need to be prefixed with `r#` + +error: aborting due to 4 previous errors + |