| Age | Commit message (Collapse) | Author | Lines |
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transition borrowck to visit all **bodies** and not item-likes
This is a better structure for incremental compilation and also more compatible with the eventual borrowck mir. It also fixes #38520 as a drive-by fix.
r? @eddyb
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Implement non-capturing closure to fn coercion
Implements non capturing closure coercion ([RFC 1558](https://github.com/rust-lang/rfcs/blob/master/text/1558-closure-to-fn-coercion.md)).
cc tracking issue #39817
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This ends up not really mattering because we generate a plain conditional branch in LLVM either
way.
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Also use a Cow to avoid full Vec for all SwitchInts
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This removes another special case of Switch by replacing it with the more general SwitchInt. While
this is more clunky currently, there’s no reason we can’t make it nice (and efficient) to use.
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Rollup of 5 pull requests
- Successful merges: #39595, #39601, #39602, #39615, #39647
- Failed merges:
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Fix ICE when accessing mutably an immutable enum
Fix #39544.
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Stabilize static lifetime in statics
Stabilize the "static_in_const" feature. Blockers before this PR can be merged:
* [x] The [FCP with inclination to stabilize](https://github.com/rust-lang/rust/issues/35897#issuecomment-270441437) needs to be over. FCP lasts roughly three weeks, so will be over at Jan 25, aka this thursday.
* [x] Documentation needs to be added (#37928)
Closes #35897.
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Closes #35897.
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This is the full and proper fix for #32330. This also makes some effort
to give a nice error message (as evidenced by the `ui` test), sending
users over to the tracking issue for a full explanation.
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Add warning for () to ! switch
With feature(never_type) enabled diverging type variables will default to `!` instead of `()`. This can cause breakages where a trait is resolved on such a type.
This PR emits a future-compatibility warning when it sees this happen.
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Implement kind="static-nobundle" (RFC 1717)
This implements the "static-nobundle" library kind (last item from #37403).
Rustc handles "static-nobundle" libs very similarly to dylibs, except that on Windows, uses of their symbols do not get marked with "dllimport". Which is the whole point of this feature.
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Point to immutable arg/fields when trying to use as &mut
Present the following output when trying to access an immutable borrow's
field as mutable:
```
error[E0389]: cannot borrow data mutably in a `&` reference
--> $DIR/issue-38147-1.rs:27:9
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26 | fn f(&self) {
| ----- use `&mut self` here to make mutable
27 | f.s.push('x');
| ^^^ assignment into an immutable reference
```
And the following when trying to access an immutable struct field as mutable:
```
error: cannot borrow immutable borrowed content `*self.s` as mutable
--> $DIR/issue-38147-3.rs:17:9
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12 | s: &'a String
| ------------- use `&'a mut String` here to make mutable
...|
16 | fn f(&self) {
| ----- use `&mut self` here to make mutable
17 | self.s.push('x');
| ^^^^^^ cannot borrow as mutable
```
Fixes #38147.
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Point to immutable borrow arguments and fields when trying to use them as
mutable borrows. Add label to primary span on "cannot borrow as mutable"
errors.
Present the following output when trying to access an immutable borrow's
field as mutable:
```
error[E0389]: cannot borrow data mutably in a `&` reference
--> $DIR/issue-38147-1.rs:27:9
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26 | fn f(&self) {
| ----- use `&mut self` here to make mutable
27 | f.s.push('x');
| ^^^ assignment into an immutable reference
```
And the following when trying to access an immutable struct field as mutable:
```
error: cannot borrow immutable borrowed content `*self.s` as mutable
--> $DIR/issue-38147-3.rs:17:9
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12 | s: &'a String
| ------------- use `&'a mut String` here to make mutable
...|
16 | fn f(&self) {
| ----- use `&mut self` here to make mutable
17 | self.s.push('x');
| ^^^^^^ cannot borrow as mutable
```
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End temporary lifetimes being extended by `let X: &_` hints
cc #39283
r? @nikomatsakis
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Fixes #36082.
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These are static libraries that are not bundled (as the name implies) into rlibs and staticlibs that rustc generates,
and must be present when the final binary artifact is being linked.
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r=nikomatsakis
Dont check stability for items that are not pub to universe.
Dont check stability for items that are not pub to universe.
In other words, skip it for private and even `pub(restricted)` items, because stability checks are only relevant to things visible in other crates.
Fix #38412.
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