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Rollup merge of #29677 - GuillaumeGomez:patch-3, r=Manishearth

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r? @Manishearth
cc @AlisdairO

Part of #24407
This commit is contained in:
Manish Goregaokar 2015-11-12 00:59:30 +05:30
commit eda26b32f4
1 changed files with 22 additions and 1 deletions
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23
src/librustc_typeck/diagnostics.rs
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@ -2677,6 +2677,28 @@ defined. For more information see the [opt-in builtin traits RFC](https://github
.com/rust-lang/rfcs/blob/master/text/0019-opt-in-builtin-traits.md). .com/rust-lang/rfcs/blob/master/text/0019-opt-in-builtin-traits.md).
"##, "##,
E0321: r##"
A cross-crate opt-out trait was implemented on something which wasn't a struct
or enum type. Erroneous code example:
```
#![feature(optin_builtin_traits)]
struct Foo;
impl !Sync for Foo {}
unsafe impl Send for &'static Foo {
// error: cross-crate traits with a default impl, like `core::marker::Send`,
// can only be implemented for a struct/enum type, not
// `&'static Foo`
```
Only structs and enums are permitted to impl Send, Sync, and other opt-out
trait, and the struct or enum must be local to the current crate. So, for
example, `unsafe impl Send for Rc<Foo>` is not allowed.
"##,
E0322: r##" E0322: r##"
The `Sized` trait is a special trait built-in to the compiler for types with a The `Sized` trait is a special trait built-in to the compiler for types with a
constant size known at compile-time. This trait is automatically implemented constant size known at compile-time. This trait is automatically implemented
@ -3463,7 +3485,6 @@ register_diagnostics! {
// E0246, // invalid recursive type // E0246, // invalid recursive type
// E0319, // trait impls for defaulted traits allowed just for structs/enums // E0319, // trait impls for defaulted traits allowed just for structs/enums
E0320, // recursive overflow during dropck E0320, // recursive overflow during dropck
E0321, // extended coherence rules for defaulted traits violated
E0328, // cannot implement Unsize explicitly E0328, // cannot implement Unsize explicitly
E0374, // the trait `CoerceUnsized` may only be implemented for a coercion E0374, // the trait `CoerceUnsized` may only be implemented for a coercion
// between structures with one field being coerced, none found // between structures with one field being coerced, none found