Uh oh!
There was an error while loading. Please reload this page.
Recover from function pointer types with generic parameter list - #104223
Merged
Conversation
rustbot
commented
Nov 10, 2022
Collaborator
cc @davidtwco, @compiler-errors, @JohnTitor, @estebank, @TaKO8Ki |
fmease
commented
Nov 10, 2022
Uh oh!
There was an error while loading. Please reload this page.
fmeaseforce-pushed
the
recover-fn-ptr-with-generics
branch
2 times, most recently
from
November 10, 2022 11:46
5fe8cf1 to
bbe8f1dCompareestebank
commented
Nov 11, 2022
Contributor
bors
commented
Nov 11, 2022
Collaborator
📌 Commit bbe8f1d56588bc85f450fec2e041066a417f8f03 has been approved by It is now in the queue for this repository. |
This comment was marked as resolved.
This comment was marked as resolved.
fmeaseforce-pushed
the
recover-fn-ptr-with-generics
branch
from
November 11, 2022 12:43
bbe8f1d to
c2b906bComparefmease
commented
Nov 11, 2022
MemberAuthor
@rustbot reviewer |
davidtwco
commented
Nov 14, 2022
Member
@bors r=estebank |
bors
commented
Nov 14, 2022
Collaborator
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. Fixesrust-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
This file contains hidden or 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
Sign up for freeto join this conversation on GitHub.
Already have an account?
Sign in to comment
5 participants
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