layout: deal with placeholders, ICE on bound types#107986
Merged
bors merged 1 commit intorust-lang:masterfrom Feb 13, 2023
Merged
layout: deal with placeholders, ICE on bound types#107986bors merged 1 commit intorust-lang:masterfrom
bors merged 1 commit intorust-lang:masterfrom
Conversation
a placeholder type is the same as a param as they represent "this could be any type". A bound type represents a type inside of a `for<T>` or `exists<T>`. When entering a forall or exists `T` should be instantiated as a existential (inference var) or universal (placeholder). You should never observe a bound variable without its binder.
Collaborator
|
(rustbot has picked a reviewer for you, use r? to override) |
rustbot
added
S-waiting-on-review
Contributor
Author
|
(this causes an ICE in #107981) |
Contributor
|
This looks reasonable, but I don't have much context here. |
Collaborator
bors
added
S-waiting-on-bors
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Feb 13, 2023
…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#107340 (rustdoc: merge doctest tooltip with notable traits tooltip) - rust-lang#107838 (Introduce `-Zterminal-urls` to use OSC8 for error codes) - rust-lang#107922 (Print disk usage in PGO CI script) - rust-lang#107931 (Intern span when length is MAX_LEN with parent.) - rust-lang#107935 (rustc_ast: Merge impls and reorder methods for attributes and meta items) - rust-lang#107986 (layout: deal with placeholders, ICE on bound types) 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 free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
4 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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
A placeholder type is the same as a param as they represent "this could be any type". A bound type represents a type inside of a
for<T>orexists<T>. When entering a forall or existsTshould be instantiated as a existential (inference var) or universal (placeholder). You should never observe a bound variable without its binder.