rust/src/libsyntax/diagnostic_list.rs

206 lines
4.5 KiB
Rust

// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![allow(non_snake_case)]
// Error messages for EXXXX errors.
// Each message should start and end with a new line, and be wrapped to 80 characters.
// In vim you can `:set tw=80` and use `gq` to wrap paragraphs. Use `:set tw=0` to disable.
register_long_diagnostics! {
E0534: r##"
The `inline` attribute was malformed.
Erroneous code example:
```compile_fail,E0534
#[inline()] // error: expected one argument
pub fn something() {}
fn main() {}
```
The parenthesized `inline` attribute requires the parameter to be specified:
```ignore
#[inline(always)]
fn something() {}
// or:
#[inline(never)]
fn something() {}
```
Alternatively, a paren-less version of the attribute may be used to hint the
compiler about inlining opportunity:
```
#[inline]
fn something() {}
```
For more information about the inline attribute, read:
https://doc.rust-lang.org/reference.html#inline-attributes
"##,
E0535: r##"
An unknown argument was given to the `inline` attribute.
Erroneous code example:
```compile_fail,E0535
#[inline(unknown)] // error: invalid argument
pub fn something() {}
fn main() {}
```
The `inline` attribute only supports two arguments:
* always
* never
All other arguments given to the `inline` attribute will return this error.
Example:
```
#[inline(never)] // ok!
pub fn something() {}
fn main() {}
```
For more information about the inline attribute, https:
read://doc.rust-lang.org/reference.html#inline-attributes
"##,
E0536: r##"
The `not` cfg-predicate was malformed.
Erroneous code example:
```compile_fail,E0536
#[cfg(not())] // error: expected 1 cfg-pattern
pub fn something() {}
pub fn main() {}
```
The `not` predicate expects one cfg-pattern. Example:
```
#[cfg(not(target_os = "linux"))] // ok!
pub fn something() {}
pub fn main() {}
```
For more information about the cfg attribute, read:
https://doc.rust-lang.org/reference.html#conditional-compilation
"##,
E0537: r##"
An unknown predicate was used inside the `cfg` attribute.
Erroneous code example:
```compile_fail,E0537
#[cfg(unknown())] // error: invalid predicate `unknown`
pub fn something() {}
pub fn main() {}
```
The `cfg` attribute supports only three kinds of predicates:
* any
* all
* not
Example:
```
#[cfg(not(target_os = "linux"))] // ok!
pub fn something() {}
pub fn main() {}
```
For more information about the cfg attribute, read:
https://doc.rust-lang.org/reference.html#conditional-compilation
"##,
E0558: r##"
The `export_name` attribute was malformed.
Erroneous code example:
```compile_fail,E0558
#[export_name] // error: export_name attribute has invalid format
pub fn something() {}
fn main() {}
```
The `export_name` attribute expects a string in order to determine the name of
the exported symbol. Example:
```
#[export_name = "some_function"] // ok!
pub fn something() {}
fn main() {}
```
"##,
E0565: r##"
A literal was used in an attribute that doesn't support literals.
Erroneous code example:
```compile_fail,E0565
#[inline("always")] // error: unsupported literal
pub fn something() {}
```
Literals in attributes are new and largely unsupported. Work to support literals
where appropriate is ongoing. Try using an unquoted name instead:
```
#[inline(always)]
pub fn something() {}
```
"##,
}
register_diagnostics! {
E0538, // multiple [same] items
E0539, // incorrect meta item
E0540, // multiple rustc_deprecated attributes
E0541, // unknown meta item
E0542, // missing 'since'
E0543, // missing 'reason'
E0544, // multiple stability levels
E0545, // incorrect 'issue'
E0546, // missing 'feature'
E0547, // missing 'issue'
E0548, // incorrect stability attribute type
E0549, // rustc_deprecated attribute must be paired with either stable or unstable attribute
E0550, // multiple deprecated attributes
E0551, // incorrect meta item
E0552, // unrecognized representation hint
E0553, // unrecognized enum representation hint
E0554, // #[feature] may not be used on the [] release channel
E0555, // malformed feature attribute, expected #![feature(...)]
E0556, // malformed feature, expected just one word
E0557, // feature has been removed
}