Emit `'_` for lifetime generics in `HirDisplay`
This makes the generated code not linted by `rust_2018_idioms` lint. But that is an allow by default lint, so should we do this? Maybe we should only do this for `DisplayTarget::SourceCode`?
fix: consider outer binders when folding captured items' type
Fixes#14966
Basically, the crash is caused by us producing a broken type and passing it to chalk: `&dyn for<type> [for<> Implemented(^1.0: A<^0.0>)]` (notice the innermost bound var `^0.0` has no corresponding binder). It's created in `CapturedItemWithoutTy::with_ty()`, which didn't consider outer binders when folding types to replace placeholders with bound variables.
The fix is one-liner, but I've also refactored the surrounding code a little.
Print the full arguments passed to `./configure` in CI
This is useful to replicate CI failures locally. Before, the arguments would be truncated and it would be hard to tell what it was actually doing.
Before:
```
configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--save-t ...
```
After:
```
configure: build.configure-args := ['--build=x86_64-unknown-linux-gnu', '--save-toolstates=/tmp/toolstate/toolstates.json', '--enable-verbose', '--enable-sccache', '--disable-manage-submodules', '--enable-locked-deps', '--enable-cargo-native-static', '--set', 'rust.codegen-units-std=1', '--set', 'dist.compression-profile=balanced', '--dist-compression-formats=xz', '--disable-dist-src', '--set', 'rust.download-rustc=if-unchanged', '--release-channel=nightly', '--enable-debug-assertions', '--enable-overflow-checks', '--enable-llvm-assertions', '--set', 'rust.verify-llvm-ir', '--set', 'llvm.download-ci-llvm=if-available', '--enable-missing-tools']
```
- use `DefWithBodyId::as_generic_def_id()`
- add comments on `InferenceResult` invariant
- move local helper function to bottom to comply with style guide
Revert "Add mandatory panic contexts to all threadpool tasks"
Reverts rust-lang/rust-analyzer#14965
This won't quite work actually given the use of `catch_unwind` in some of these
Add mandatory panic contexts to all threadpool tasks
the diagnostics task is panicking I think, but without this you can't really tell because the stack trace ends in a generic iterator fold call instead of something specific.
Fix drop scopes problems in mir
Fix false positives of `need-mut` emerged from #14955
There are still 5 `need-mut` false positives on self, all related to `izip!` macro hygenic issue. I will try to do something about that before monday release.
Don't use `can_eq` in `derive(..)` suggestion for missing method
Unsatisfied predicates returned from method probe may reference inference vars from that probe, so drop this extra check I added in #110877 for more accurate derive suggestions...
Fixes#111500
Fix the progress message for `x doc rustc`
This makes it more clear that we're using stage 0 *to document* rustc, not that we're documenting stage0 rustc itself.
It also fixes a bug in `msg_sysroot_tool` that would print `Docing`, and removes the `Debug` impl for `Kind` to make sure it doesn't happen again.
Before:
```
Documenting stage0 compiler {rustc-main} (aarch64-apple-darwin)
```
After:
```
Documenting compiler {rustc-main} (stage0 -> stage1, aarch64-apple-darwin)
```
thanks `@BoxyUwU` for catching this!
Fix Assist "replace named generic type with impl trait"
This is a follow-up PR to fix the assist "replace named generic type with impl trait" described in #14626 to filter invalid param types. It integrates the feedback given in PR #14816 .
The change updates the logic to determine when a function parameter is safe to replace a type param with its trait implementation. Some parameter definitions are invalid & should not be replaced by their traits, therefore skipping the assist completely.
First, all usages of the generic type under the cursor are determined. These usage references are checked to see if they occur outside the function parameter list. If an outside reference is found, e.g. in body, return type or where clause, the assist is skipped. All remaining usages need to appear only in the function param list. For each usage the param type is further inspected to see if it's valid. The logic to determine if a function parameter is valid, follows a heuristic and may not cover all possible parameter definitions.
With this change the following param types (as given in [this comment](https://github.com/rust-lang/rust-analyzer/pull/14816#discussion_r1206834603)) are not replaced & therefore skip the assist.
```rust
fn foo<P: Trait>(
_: <P as Trait>::Assoc, // within path type qualifier
_: <() as OtherTrait<P>>::Assoc, // same as above
_: P::Assoc, // associated type shorthand
_: impl OtherTrait<P> // generic arg in impl trait (note that associated type bindings are fine)
_: &dyn Fn(P) // param type and/or return type for Fn* traits
) {}
```
The change updates the logic to determine if a function parameter is
valid for replacing the type param with the trait implementation.
First all usages are determined, to check if they are used outside the function
parameter list. If an outside reference is found, e.g. in body, return type or
where clause, the assist is skipped. All remaining usages only appear in the
function param list. For each usage the param type is checked to see if
it's valid.
**Please note** the logic currently follows a heuristic and may not cover
all existing parameter declarations.
* determine valid usage references by checking ancestors (on AST level)
* split test into separate ones
Do not build docs in try builds
This PR adds a new environment variable to the optimized build Python script, which causes it to ignore certain parts of the final `dist` build (mainly docs) in try builds. This reduces the duration of try builds by ~10 minutes.
Enable ConstGoto and SeparateConstSwitch passes by default
These 2 passes implement a limited form of jump-threading.
Filing this PR to see if enabling them would be lighter than https://github.com/rust-lang/rust/pull/107009.
