| Age | Commit message (Collapse) | Author | Lines |
|---|
|
Detect long types in E0308 and write them to disk
On type error with long types, print an abridged type and write the full type to disk.
Print the widest possible short type while still fitting in the terminal.
|
|
When *any* of the suggested impls is an exact match, *only* show the
exact matches. This is particularly relevant for integer types.
fix fmt
|
|
|
|
On type error with long types, print an abridged type and write the full
type to disk.
Print the widest possible short type while still fitting in the
terminal.
|
|
This reverts commit cbe932801892da06688b53638622be1c8a1c8974.
|
|
Make `deref_into_dyn_supertrait` lint the impl and not the usage
Proposed by ``@compiler-errors`` in https://github.com/rust-lang/rust/issues/89460#issuecomment-1320806785
r? ``@crlf0710``
|
|
|
|
|
|
Fix hang in where-clause suggestion with `predicate_can_apply`
Using `predicate_may_hold` during error reporting causes an evaluation overflow, which (because we use `evaluate_obligation_no_overflow`) then causes the predicate to need to be re-evaluated locally, which results in a hang.
... but since the "add a where clause" suggestion is best-effort, just throw any overflow errors. No need for 100% accuracy.
r? `@lcnr` who has been thinking about overflows... Let me know if you want more context about this issue, and as always, feel free to reassign.
Fixes #104225
|
|
|
|
Allow opaque types in trait impl headers and rely on coherence to reject unsound cases
r? ````@lcnr````
fixes #99840
|
|
compiler-errors:need_migrate_deref_output_trait_object-msg, r=eholk
Probe + better error messsage for `need_migrate_deref_output_trait_object`
1. Use `InferCtxt::probe` in `need_migrate_deref_output_trait_object` -- that normalization *could* technically do type inference as a side-effect, and this is a lint, so it should have no side-effects.
2. Return the trait-ref so we format the error message correctly. See the UI test change -- `(dyn A + 'static)` is not a trait.
|
|
unsound cases
|
|
|
|
`_` might confuse people into believing that the type isn't known,
while `...` is not used anywhere else for types and is not valid
syntax, making it more likely to convey the right understanding.
|
|
|
|
Record `LocalDefId` in HIR nodes instead of a side table
This is part of an attempt to remove the `HirId -> LocalDefId` table from HIR.
This attempt is a prerequisite to creation of `LocalDefId` after HIR lowering (https://github.com/rust-lang/rust/pull/96840), by controlling how `def_id` information is accessed.
This first part adds the information to HIR nodes themselves instead of a table.
The second part is https://github.com/rust-lang/rust/pull/103902
The third part will be to make `hir::Visitor::visit_fn` take a `LocalDefId` as last parameter.
The fourth part will be to completely remove the side table.
|
|
Respect visibility & stability of inherent associated types
As discussed in #103621, this probably won't be the final location of the code that resolves inherent associated types. Still, I think it's valuable to push correctness fixes for this feature (in regards to visibility and stability).
Let me know if I should write a translatable diagnostic instead and if I should move the tests to `privacy/` and `stability-attribute/` respectively.
Fixes #104243.
````@rustbot```` label A-visibility F-inherent_associated_types
r? ````@cjgillot```` (since you reviewed #103621, feel free to reroll though)
|
|
|
|
Don't print full paths in overlap errors
We don't print the full path in other diagnostics -- I don't think it particularly helps with the error message. I also delayed the printing until actually needing to render the error message.
r? diagnostics
|
|
Add a few known-bug tests
The labels of these tests should be changed from `S-bug-has-mcve` to `S-bug-has-test` once this is merged.
cc:
#101518
#99492
#90950
#89196
#104034
#101350
#103705
#103899
I couldn't reproduce the failures in #101962 and #100772 (so either these have started passing, or I didn't repro properly), so leaving those out for now.
#102065 was a bit more complicated, since it uses `rustc_private` and I didn't want to mess with that.
|
|
|
|
|
|
Move tests
r? `@petrochenkov`
https://github.com/rust-lang/rust/pull/46521 -> enum-discriminant
|
|
Mark `trait_upcasting` feature no longer incomplete.
This marks the `trait_upcasting` feature no longer incomplete since #101336 has been settled for a little while.
r? ``````@jackh726``````
|
|
|
|
Rollup of 8 pull requests
Successful merges:
- #95292 (Allow specialized const trait impls.)
- #100386 (Make `Sized` coinductive, again)
- #102215 (Implement the `+whole-archive` modifier for `wasm-ld`)
- #103468 (Fix unused lint and parser caring about spaces to won't produce invalid code)
- #103531 (Suggest calling the instance method of the same name when method not found)
- #103960 (piece of diagnostic migrate)
- #104051 (update Miri)
- #104129 (rustdoc: use javascript to layout notable traits popups)
Failed merges:
r? `@ghost`
`@rustbot` modify labels: rollup
|
|
|
|
|
|
|
|
Emit a fatal error instead.
|
|
|
|
|
|
Add suggestions for unsafe impl error codes
Adds suggestions for users to add `unsafe` to trait impls that should be `unsafe`, and remove `unsafe` from trait impls that do not require `unsafe`
With the folllowing code:
```rust
struct Foo {}
struct Bar {}
trait Safe {}
unsafe trait Unsafe {}
impl Safe for Foo {} // ok
impl Unsafe for Foo {} // E0200
unsafe impl Safe for Bar {} // E0199
unsafe impl Unsafe for Bar {} // ok
// omitted empty main fn
```
The current rustc output is:
```
error[E0199]: implementing the trait `Safe` is not unsafe
--> e0200.rs:13:1
|
13 | unsafe impl Safe for Bar {} // E0199
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
error[E0200]: the trait `Unsafe` requires an `unsafe impl` declaration
--> e0200.rs:11:1
|
11 | impl Unsafe for Foo {} // E0200
| ^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0199, E0200.
For more information about an error, try `rustc --explain E0199`.
```
With this PR, the future rustc output would be:
```
error[E0199]: implementing the trait `Safe` is not unsafe
--> ../../temp/e0200.rs:13:1
|
13 | unsafe impl Safe for Bar {} // E0199
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: remove `unsafe` from this trait implementation
|
13 - unsafe impl Safe for Bar {} // E0199
13 + impl Safe for Bar {} // E0199
|
error[E0200]: the trait `Unsafe` requires an `unsafe impl` declaration
--> ../../temp/e0200.rs:11:1
|
11 | impl Unsafe for Foo {} // E0200
| ^^^^^^^^^^^^^^^^^^^^^^
|
= note: the trait `Unsafe` enforces invariants that the compiler can't check. Review the trait documentation and make sure this implementation upholds those invariants before adding the `unsafe` keyword
help: add `unsafe` to this trait implementation
|
11 | unsafe impl Unsafe for Foo {} // E0200
| ++++++
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0199, E0200.
For more information about an error, try `rustc --explain E0199`.
```
``@rustbot`` label +T-compiler +A-diagnostics +A-suggestion-diagnostics
|
|
Fix some typos
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Check uniqueness of impl items by trait item when applicable.
When checking uniqueness of item names in impl blocks, we currently use the same definition of hygiene as for toplevel items. This means that a plain item and one generated by a macro 2.0 do not collide.
This hygiene rule does not match with how impl items resolve to associated trait items. As a consequence, we misdiagnose the trait impls.
This PR proposes to consider that trait impl items are uses of the corresponding trait items during resolution, instead of checking for duplicates later. An error is emitted when a trait impl item is used twice.
There should be no stable breakage, since macros 2.0 are still unstable.
r? ``@petrochenkov``
cc ``@RalfJung``
Fixes https://github.com/rust-lang/rust/issues/71614.
|
|
|
|
Move some tests to more reasonable directories
r? ``@petrochenkov``
|
|
modified: compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs
modified: src/test/ui/error-codes/E0283.stderr
modified: src/test/ui/error-codes/E0790.stderr
modified: src/test/ui/traits/static-method-generic-inference.stderr
modified: src/test/ui/type/issue-101866.stderr
|
|
|
|
Don't duplicate region names for late-bound regions in print of Binder
Fixes https://github.com/rust-lang/rust/issues/101280
|
|
|
|
|
|
|
