Recover from function pointer types with generic parameter list #104223
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rustbot
added
A-translation
|
cc @davidtwco, @compiler-errors, @JohnTitor, @estebank, @TaKO8Ki |
fmease
changed the title
fmease
commented
Nov 10, 2022
fmease
force-pushed
the
recover-fn-ptr-with-generics
branch
2 times, most recently
from
5fe8cf1 to
bbe8f1d
Compare
|
📌 Commit bbe8f1d56588bc85f450fec2e041066a417f8f03 has been approved by It is now in the queue for this repository. |
bors
added
S-waiting-on-bors
This comment was marked as resolved.
This comment was marked as resolved.
bors
added
S-waiting-on-author
fmease
force-pushed
the
recover-fn-ptr-with-generics
branch
from
bbe8f1d to
c2b906b
Compare
|
@rustbot reviewer |
rustbot
added
S-waiting-on-review
|
@bors r=estebank |
bors
added
S-waiting-on-bors
matthiaskrgr
added a commit
to matthiaskrgr/rust
that referenced
this pull request
Nov 14, 2022
…s, r=estebank Recover from function pointer types with generic parameter list Give a more helpful error when encountering function pointer types with a generic parameter list like `fn<'a>(&'a str) -> bool` or `fn<T>(T) -> T` and suggest moving lifetime parameters to a `for<>` parameter list. I've added a bunch of extra code to properly handle (unlikely?) corner cases like `for<'a> fn<'b>()` (where there already exists a `for<>` parameter list) correctly suggesting `for<'a, 'b> fn()` (merging the lists). If you deem this useless, I can simplify the code by suggesting nothing at all in this case. I am quite open to suggestions regarding the wording of the diagnostic messages. Fixes rust-lang#103487. `@rustbot` label A-diagnostics r? diagnostics
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 15, 2022
…iaskrgr Rollup of 11 pull requests Successful merges: - rust-lang#101967 (Move `unix_socket_abstract` feature API to `SocketAddrExt`.) - rust-lang#102470 (Stabilize const char convert) - rust-lang#104223 (Recover from function pointer types with generic parameter list) - rust-lang#104229 (Don't print full paths in overlap errors) - rust-lang#104294 (Don't ICE with inline const errors during MIR build) - rust-lang#104332 (Fixed some `_i32` notation in `maybe_uninit`’s doc) - rust-lang#104349 (fix some typos in comments) - rust-lang#104350 (Fix x finding Python on Windows) - rust-lang#104356 (interpret: make check_mplace public) - rust-lang#104364 (rustdoc: Resolve doc links in external traits having local impls) - rust-lang#104378 (Bump chalk to v0.87) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Give a more helpful error when encountering function pointer types with a generic parameter list like
fn<'a>(&'a str) -> boolorfn<T>(T) -> Tand suggest moving lifetime parameters to afor<>parameter list.I've added a bunch of extra code to properly handle (unlikely?) corner cases like
for<'a> fn<'b>()(where there already exists afor<>parameter list) correctly suggestingfor<'a, 'b> fn()(merging the lists). If you deem this useless, I can simplify the code by suggesting nothing at all in this case.I am quite open to suggestions regarding the wording of the diagnostic messages.
Fixes #103487.
@rustbot label A-diagnostics
r? diagnostics