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`missing_fragment_specifier` has been a future compatibility warning since 2017. Uplifting it to an unconditional hard error was attempted in 2020, but eventually reverted due to fallout. Make it an error only in edition >= 2024, leaving the lint for older editions. This change will make it easier to support more macro syntax that relies on usage of `$`. Fixes <https://github.com/rust-lang/rust/issues/40107>
48 lines
1.6 KiB
Plaintext
48 lines
1.6 KiB
Plaintext
error: missing fragment specifier
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--> $DIR/macro-missing-fragment.rs:9:20
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LL | ( $( any_token $field_rust_type )* ) => {};
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| ^^^^^^^^^^^^^^^^
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= note: fragment specifiers must be specified in the 2024 edition
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= help: valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `expr_2021`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis`
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help: try adding a specifier here
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LL | ( $( any_token $field_rust_type:spec )* ) => {};
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| +++++
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error: missing fragment specifier
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--> $DIR/macro-missing-fragment.rs:19:7
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LL | ( $name ) => {};
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| ^^^^^
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= note: fragment specifiers must be specified in the 2024 edition
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= help: valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `expr_2021`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis`
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help: try adding a specifier here
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LL | ( $name:spec ) => {};
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| +++++
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error: missing fragment specifier
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--> $DIR/macro-missing-fragment.rs:26:7
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LL | ( $name ) => {};
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| ^^^^^
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= note: fragment specifiers must be specified in the 2024 edition
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= help: valid fragment specifiers are `ident`, `block`, `stmt`, `expr`, `expr_2021`, `pat`, `ty`, `lifetime`, `literal`, `path`, `meta`, `tt`, `item` and `vis`
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help: try adding a specifier here
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LL | ( $name:spec ) => {};
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| +++++
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error: missing fragment specifier
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--> $DIR/macro-missing-fragment.rs:9:20
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LL | ( $( any_token $field_rust_type )* ) => {};
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| ^^^^^^^^^^^^^^^^
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error: aborting due to 4 previous errors
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