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Rollup merge of #87521 - midgleyc:long-E0498, r=GuillaumeGomez

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Add long explanation for E0498

Helps with #61137
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Yuki Okushi 2021-07-29 06:11:47 +09:00 committed by GitHub
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4 changed files with 25 additions and 1 deletions
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2
compiler/rustc_error_codes/src/error_codes.rs
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@ -248,6 +248,7 @@ E0493: include_str!("./error_codes/E0493.md"),
E0495: include_str!("./error_codes/E0495.md"),
E0496: include_str!("./error_codes/E0496.md"),
E0497: include_str!("./error_codes/E0497.md"),
E0498: include_str!("./error_codes/E0498.md"),
E0499: include_str!("./error_codes/E0499.md"),
E0500: include_str!("./error_codes/E0500.md"),
E0501: include_str!("./error_codes/E0501.md"),
@ -604,7 +605,6 @@ E0783: include_str!("./error_codes/E0783.md"),
// E0488, // lifetime of variable does not enclose its declaration
// E0489, // type/lifetime parameter not in scope here
E0490, // a value of type `..` is borrowed for too long
E0498, // malformed plugin attribute
E0514, // metadata version mismatch
E0519, // local crate and dependency have same (crate-name, disambiguator)
// two dependencies have same (crate-name, disambiguator) but different SVH

22
compiler/rustc_error_codes/src/error_codes/E0498.md Normal file
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@ -0,0 +1,22 @@
The `plugin` attribute was malformed.
Erroneous code example:
```compile_fail,E0498
#![feature(plugin)]
#![plugin(foo(args))] // error: invalid argument
#![plugin(bar="test")] // error: invalid argument
```
The `#[plugin]` attribute should take a single argument: the name of the plugin.
For example, for the plugin `foo`:
```ignore (requires external plugin crate)
#![feature(plugin)]
#![plugin(foo)] // ok!
```
See the [`plugin` feature] section of the Unstable book for more details.
[`plugin` feature]: https://doc.rust-lang.org/nightly/unstable-book/language-features/plugin.html

1
src/test/ui-fulldeps/plugin-args.stderr
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@ -14,3 +14,4 @@ LL | #![plugin(empty_plugin(args))]
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0498`.

1
src/test/ui/malformed/malformed-plugin-3.stderr
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@ -14,3 +14,4 @@ LL | #![plugin(foo="bleh")]
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0498`.