Add long explanation for E0544.
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3 changed files with 31 additions and 2 deletions
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@ -287,6 +287,7 @@ E0539: include_str!("./error_codes/E0539.md"),
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E0541: include_str!("./error_codes/E0541.md"),
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E0541: include_str!("./error_codes/E0541.md"),
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E0542: include_str!("./error_codes/E0542.md"),
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E0542: include_str!("./error_codes/E0542.md"),
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E0543: include_str!("./error_codes/E0543.md"),
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E0543: include_str!("./error_codes/E0543.md"),
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E0544: include_str!("./error_codes/E0544.md"),
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E0545: include_str!("./error_codes/E0545.md"),
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E0545: include_str!("./error_codes/E0545.md"),
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E0546: include_str!("./error_codes/E0546.md"),
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E0546: include_str!("./error_codes/E0546.md"),
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E0547: include_str!("./error_codes/E0547.md"),
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E0547: include_str!("./error_codes/E0547.md"),
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@ -610,7 +611,6 @@ E0783: include_str!("./error_codes/E0783.md"),
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E0523,
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E0523,
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// E0526, // shuffle indices are not constant
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// E0526, // shuffle indices are not constant
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// E0540, // multiple rustc_deprecated attributes
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// E0540, // multiple rustc_deprecated attributes
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E0544, // multiple stability levels
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// E0548, // replaced with a generic attribute input check
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// E0548, // replaced with a generic attribute input check
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// E0553, // multiple rustc_const_unstable attributes
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// E0553, // multiple rustc_const_unstable attributes
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// E0555, // replaced with a generic attribute input check
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// E0555, // replaced with a generic attribute input check
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29
compiler/rustc_error_codes/src/error_codes/E0544.md
Normal file
29
compiler/rustc_error_codes/src/error_codes/E0544.md
Normal file
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@ -0,0 +1,29 @@
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Multiple stability attributes were declared on the same item.
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Erroneous code example:
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```compile_fail,E0544
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#![feature(staged_api)]
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#![stable(since = "1.0.0", feature = "rust1")]
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#[stable(feature = "rust1", since = "1.0.0")]
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#[stable(feature = "test", since = "2.0.0")] // invalid
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fn foo() {}
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```
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To fix this issue, ensure that each item has at most one stability attribute.
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```
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#![feature(staged_api)]
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#![stable(since = "1.0.0", feature = "rust1")]
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#[stable(feature = "test", since = "2.0.0")] // ok!
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fn foo() {}
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```
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See the [How Rust is Made and “Nightly Rust”][how-rust-made-nightly] appendix
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of the Book and the [Stability attributes][stability-attributes] section of the
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Rustc Dev Guide for more details.
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[how-rust-made-nightly]: https://doc.rust-lang.org/book/appendix-07-nightly-rust.html
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[stability-attributes]: https://rustc-dev-guide.rust-lang.org/stability.html
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@ -122,5 +122,5 @@ LL | #[rustc_deprecated(since = "a", reason = "text")]
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error: aborting due to 19 previous errors
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error: aborting due to 19 previous errors
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Some errors have detailed explanations: E0539, E0541, E0542, E0543, E0546, E0547, E0549, E0550.
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Some errors have detailed explanations: E0539, E0541, E0542, E0543, E0544, E0546, E0547, E0549, E0550.
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For more information about an error, try `rustc --explain E0539`.
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For more information about an error, try `rustc --explain E0539`.
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