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Author SHA1 Message Date
Oli Scherer
7f608eb9ed Prevent two opaque types in their defining scopes from being defined via the other 2022-02-02 15:40:12 +00:00
Oli Scherer
bae04fb3de Ensure we error in case of non-higher-kinded lifetimes 2022-02-02 15:40:12 +00:00
Oli Scherer
7a1ccf9a03 Avoid an ICE in the presence of HKL 2022-02-02 15:40:12 +00:00
Oli Scherer
ebf2772c58 Add regression test 2022-02-02 15:40:12 +00:00
Oli Scherer
ee2158f1ee run rustfmt 2022-02-02 15:40:12 +00:00
Oli Scherer
59d0bff0e6 Reduce follow-up errors that are not helpful 2022-02-02 15:40:12 +00:00
Oli Scherer
6560d77a53 Bail out early if there already were errors 2022-02-02 15:40:12 +00:00
Oli Scherer
29c8732436 Make the error for opaque types that have no hidden types a bit informative 2022-02-02 15:40:12 +00:00
Oli Scherer
4d2e965106 Make a span more useful 2022-02-02 15:40:12 +00:00
Oli Scherer
5518d1931d Guess head span of async blocks 2022-02-02 15:40:12 +00:00
Oli Scherer
7fd9c7e6de undo a useless change 2022-02-02 15:40:12 +00:00
Oli Scherer
b6d57ecc0b Hide further opaque type errors if items that could constrain the opaque type have errors 2022-02-02 15:40:12 +00:00
Oli Scherer
e4794d9d1b Undo a change that is now unnecessary 2022-02-02 15:40:12 +00:00
Oli Scherer
c564898110 Remove a now-useless field 2022-02-02 15:40:12 +00:00
Oli Scherer
3d4b9b8b8b Remove some unused arguments and update a comment 2022-02-02 15:40:12 +00:00
Oli Scherer
dc36b38526 Make a comment more obvious 2022-02-02 15:40:12 +00:00
Oli Scherer
d3b534b6b5 manual formatting 2022-02-02 15:40:12 +00:00
Oli Scherer
d8c29b3e28 Simplify diff 2022-02-02 15:40:11 +00:00
Oli Scherer
dbda675419 Undo a diff 2022-02-02 15:40:11 +00:00
Oli Scherer
b45fabddfd Inline a function that is only used once 2022-02-02 15:40:11 +00:00
Oli Scherer
d35d1ef4f5 Remove unnecessary field 2022-02-02 15:40:11 +00:00
Oli Scherer
5b49b8e2d5 Remove unnecessary closure in favour of just passing the argument directly 2022-02-02 15:40:11 +00:00
Oli Scherer
fcba8d31c4 Remove the Instantiator now that we don't recurse within it anymore 2022-02-02 15:40:11 +00:00
Oli Scherer
e03edd287e Inline a function that is only ever used in one place 2022-02-02 15:40:11 +00:00
Oli Scherer
22477784a7 Fixup changes that aren't neccessary anymore 2022-02-02 15:40:11 +00:00
Oli Scherer
94d6a9acc9 This can't happen anymore. An opaque type can't end up with itself as its hidden type 2022-02-02 15:40:11 +00:00
Oli Scherer
3146c961fe We're equating hidden types eagerly now 2022-02-02 15:40:11 +00:00
Oli Scherer
5a374dc813 Add some tests to show what happens when you compare two opaque types that are both within the defining scope 2022-02-02 15:40:11 +00:00
Oli Scherer
cbfd736292 Update an outdated test explanation 2022-02-02 15:40:11 +00:00
Oli Scherer
77aacc1768 Test recursive TAIT declarations 2022-02-02 15:40:11 +00:00
Oli Scherer
7795f6233c Add explanation for early abort in TAIT hidden type computation 2022-02-02 15:40:11 +00:00
Oli Scherer
64c5b9a3d6 Add backcompat hack to support 
```rust
fn foo() -> impl MyTrait {
    panic!();
    MyStruct
}

struct MyStruct;
trait MyTrait {}

impl MyTrait for MyStruct {}
```
 2022-02-02 15:40:11 +00:00
Oli Scherer
edaf9625fb Clean up leftovers from eager hidden type merging 2022-02-02 15:40:11 +00:00
Oli Scherer
38f50d1ecb Eagerly merge hidden types. 2022-02-02 15:40:11 +00:00
Oli Scherer
a745797142 Stop generating inference vars for nested impl trait and let type equality handle it. 
This means we stop supporting the case where a locally defined trait has only a single impl so we can always use that impl (see nested-tait-inference.rs).
 2022-02-02 15:40:11 +00:00
Oli Scherer
7bce50c01a Register member constraints on the final merged hidden type 
Previously we did this per hidden type candiate, which didn't always have all the information available.
 2022-02-02 15:40:11 +00:00
Oli Scherer
9110911353 bless 2022-02-02 15:40:11 +00:00
Oli Scherer
0f6e06b7c0 Lazily resolve type-alias-impl-trait defining uses 
by using an opaque type obligation to bubble up comparisons between opaque types and other types

Also uses proper obligation causes so that the body id works, because out of some reason nll uses body ids for logic instead of just diagnostics.
 2022-02-02 15:40:11 +00:00
Oli Scherer
8d2b598459 More sanity checks 2022-02-02 15:40:10 +00:00
Oli Scherer
f7abc1b6f8 Expose current span to type equality checking in nll 2022-02-02 15:40:10 +00:00
Oli Scherer
47a6a24d51 Add a convenient way to inject rustc flags somewhere late in the bootstrap pipeline without causing rebuilds 
Useful for -Ztreat-err-as-bug
 2022-02-02 15:40:10 +00:00
Oli Scherer
4e1a5968f1 Found suspicious comparison of constants 2022-02-02 15:40:10 +00:00
Oli Scherer
bbbdcb327f Update some comments 2022-02-02 15:40:10 +00:00
Oli Scherer
a4c1cec4f8 Add some sanity assertions to make sure we use the opaque types correctly 2022-02-02 15:40:10 +00:00
Oli Scherer
d49b0746f6 Add roll back infrastructure for opaque type caches 2022-02-02 15:40:10 +00:00
bors
dca1e7aa5a Auto merge of #93154 - michaelwoerister:fix-generic-closure-and-generator-debuginfo, r=wesleywiser 
debuginfo: Make sure that type names for closure and generator environments are unique in debuginfo.

Before this change, closure/generator environments coming from different instantiations of the same generic function were all assigned the same name even though they were distinct types with potentially different data layout. Now we append the generic arguments of the originating function to the type name.

This commit also emits `{closure_env#0}` as the name of these types in order to disambiguate them from the accompanying closure function (which keeps being called `{closure#0}`). Previously both were assigned the same name.

NOTE: Changing debuginfo names like this can break pretty printers and other debugger plugins. I think it's OK in this particular case because the names we are changing were ambiguous anyway. In general though it would be great to have a process for doing changes like these.
 2022-02-02 12:37:28 +00:00
bors
250384edc5 Auto merge of #93573 - matthiaskrgr:rollup-nrjmygz, r=matthiaskrgr 
Rollup of 7 pull requests

Successful merges:

 - #92758 (librustdoc: impl core::fmt::Write for rustdoc::html::render::Buffer)
 - #92788 (Detect `::` -> `:` typo in type argument)
 - #93420 (Improve wrapping on settings page)
 - #93493 (Document valid values of the char type)
 - #93531 (Fix incorrect panic message in example)
 - #93559 (Add missing | between print options)
 - #93560 (Fix two incorrect "it's" (typos in comments))

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
 2022-02-02 09:39:18 +00:00
Matthias Krüger
344bb59530
Rollup merge of #93560 - steffahn:a_typo, r=petrochenkov 
Fix two incorrect "it's" (typos in comments)

Found one of these while reading the documentation online. The other came up because it's in the same file.
 2022-02-02 07:11:09 +01:00
Matthias Krüger
c483b9f1bf
Rollup merge of #93559 - danielframpton:link-args-typo, r=oli-obk 
Add missing | between print options

The help text for the newly stabilized print option is missing a | between stack-protector-strategies and link-args.
 2022-02-02 07:11:08 +01:00
Matthias Krüger
b836b281a8
Rollup merge of #93531 - TheColdVoid:patch-1, r=m-ou-se 
Fix incorrect panic message in example

The panic message when calling the `connect()` should probably be a  message about connection failure, not a message about binding address failure.
 2022-02-02 07:11:07 +01:00