rustc: Move some attr methods to queries

[rust.git] / src / libsyntax / diagnostic_list.rs

diff --git a/src/libsyntax/diagnostic_list.rs b/src/libsyntax/diagnostic_list.rs
index 6598ecb94448b7bbb15d47e56656151a050c40d2..b29883670bdeae3dfb496fd7e7c92c31dd34e8c5 100644 (file)
--- a/src/libsyntax/diagnostic_list.rs
+++ b/src/libsyntax/diagnostic_list.rs
@@ -162,27 +162,61 @@ pub fn main() {}
 https://doc.rust-lang.org/reference.html#conditional-compilation
 "##,
 
-E0558: r##"
-The `export_name` attribute was malformed.
+E0552: r##"
+A unrecognized representation attribute was used.
 
 Erroneous code example:
 
-```compile_fail,E0558
-#[export_name] // error: export_name attribute has invalid format
-pub fn something() {}
+```compile_fail,E0552
+#[repr(D)] // error: unrecognized representation hint
+struct MyStruct {
+    my_field: usize
+}
+```
 
-fn main() {}
+You can use a `repr` attribute to tell the compiler how you want a struct or
+enum to be laid out in memory.
+
+Make sure you're using one of the supported options:
+
+```
+#[repr(C)] // ok!
+struct MyStruct {
+    my_field: usize
+}
 ```
 
-The `export_name` attribute expects a string in order to determine the name of
-the exported symbol. Example:
+For more information about specifying representations, see the ["Alternative
+Representations" section] of the Rustonomicon.
+
+["Alternative Representations" section]: https://doc.rust-lang.org/nomicon/other-reprs.html
+"##,
+
+E0554: r##"
+Feature attributes are only allowed on the nightly release channel. Stable or
+beta compilers will not comply.
+
+Example of erroneous code (on a stable compiler):
 
+```ignore (depends on release channel)
+#![feature(non_ascii_idents)] // error: #![feature] may not be used on the
+                              //        stable release channel
 ```
-#[export_name = "some_function"] // ok!
-pub fn something() {}
 
-fn main() {}
+If you need the feature, make sure to use a nightly release of the compiler
+(but be warned that the feature may be removed or altered in the future).
+"##,
+
+E0557: r##"
+A feature attribute named a feature that has been removed.
+
+Erroneous code example:
+
+```compile_fail,E0557
+#![feature(managed_boxes)] // error: feature has been removed
 ```
+
+Delete the offending feature attribute.
 "##,
 
 E0565: r##"
@@ -300,11 +334,11 @@ fn main() {
     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
-    E0554, // #[feature] may not be used on the [] release channel
+    E0553, // multiple rustc_const_unstable attributes
     E0555, // malformed feature attribute, expected #![feature(...)]
     E0556, // malformed feature, expected just one word
-    E0557, // feature has been removed
     E0584, // file for module `..` found at both .. and ..
     E0589, // invalid `repr(align)` attribute
+    E0629, // missing 'feature' (rustc_const_unstable)
+    E0630, // rustc_const_unstable attribute must be paired with stable/unstable attribute
 }