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f364011955
- use feature_err to report unstable expr_2021 - Update downlevel expr_2021 diagnostics Co-authored-by: León Orell Valerian Liehr <me@fmease.dev>
27 lines
796 B
Plaintext
27 lines
796 B
Plaintext
error: invalid fragment specifier `expr_2021`
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--> $DIR/expr_2021_old_edition.rs:6:6
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LL | ($e:expr_2021) => {
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| ^^^^^^^^^^^^
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= help: fragment specifier `expr_2021` requires Rust 2021 or later
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valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis`
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error: no rules expected the token `(`
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--> $DIR/expr_2021_old_edition.rs:12:8
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LL | macro_rules! m {
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| -------------- when calling this macro
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...
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LL | m!(());
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| ^ no rules expected this token in macro call
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note: while trying to match meta-variable `$e:ident`
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--> $DIR/expr_2021_old_edition.rs:6:6
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LL | ($e:expr_2021) => {
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| ^^^^^^^^^^^^
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error: aborting due to 2 previous errors
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