Changelog #21

Commit: commit:90f837829d4f2c1054751de2de695ba1c0b8ae5c[]
Release: release:2020-04-20[]

New Features

pr:3958[] Initial support for proc-macros

To enable it, set the following settings:

{
    "rust-analyzer.cargo.loadOutDirsFromCheck": true,
    "rust-analyzer.procMacro.enabled": true
}

pr:3990[] switch to Chalk recursive solver. This significantly improves type inference when associated types are involved, for example, with iterators:

Before

After
pr:4034[] add unresolvedReference semantic tag for names which rust-analyzer fails to resolve. Adding to VS Code config
```
"editor.tokenColorCustomizationsExperimental": {
    "unresolvedReference": "#FF0000"
}
```
will give fast feedback about unresolved references, highlighting them in red. No default highlighting is set, as rust-analyzer still has a fair number of false positives.
pr:3962[] don’t assign shortcut for Parent Module command. The original shortcut was ctrl+u, but it conflicts with VS Code build-in. It is recommended to assign custom shortcut for rust-analyzer.parentModule action.
pr:3965[] implement inline associated type bounds.
pr:3966[] add support for bounds on associated types in trait definitions.
pr:4026[] omit more parameter hints in the presence of underscores.
pr:3894[] implement exhaustiveness checking for record enum variants.

pr:3961[] fix extraneous comma when merging import.
pr:3969[] Add Function assist now uses todo! macro.
pr:3967[] handle Self::Type in trait definitions when referring to own associated type.
pr:3948[] fix inlay hints config synchronization between client and server.
pr:3979[] fix missing match arm false positive for enum with no variants.
pr:4010[] fix diagnostics ranges in macros.
pr:4011[] fix self-fulfilling completion.
pr:4012[] fix panic on ellipsis in pattern.
pr:4021[] fix type equality for dyn Trait.
pr:4022[] fix panic in syntax highlighting.
pr:4023[] fix another crash from wrong binders.
pr:4027[] don’t qualify builtins in generated code.
pr:4036[] fix name resolution in guard closes and record patterns.