1848: Parse `..` as a full pattern r=matklad a=ecstatic-morse
Resolves#1479.
This PR implements [RFC 2707](https://github.com/rust-lang/rfcs/pull/2707) in the parser. It introduces a new `DotDotPat` AST node modeled on `PlaceholderPat` and changes the parsing of tuple and slice patterns to conform to the RFC.
Notably, this PR does *not* change the resulting AST when `..` appears in a struct pattern (e.g. `Struct { a, b: c, .. }`). I *think* this is the behavior mandated by RFC 2707, but someone should confirm this.
Co-authored-by: Dylan MacKenzie <ecstaticmorse@gmail.com>
1743: Support `#[macro_use]` on `extern crate` r=matklad a=uHOOCCOOHu
Unfortunately, #1688 is still an issue. My guess is wrong :(
Co-authored-by: uHOOCCOOHu <hooccooh1896@gmail.com>
1734: Strip indents and empty lines in check_apply_diagnostic_fix_from_position r=matklad a=matklad
Co-authored-by: Phil Ellison <phil.j.ellison@gmail.com>
1721: Impl/dyn trait r=flodiebold a=flodiebold
This adds support for `impl Trait` and `dyn Trait` types as far as possible without Chalk. So we can represent them in the type system, and handle them in method resolution, but Chalk doesn't know about them yet. There's a small temporary hack here where we bypass Chalk during method resolution, so we can handle simple method calls on them and completion works.
Fixes#1608.
1723: Make sysroot use `RUST_SRC_PATH` if set r=matklad a=bkchr
Co-authored-by: Florian Diebold <flodiebold@gmail.com>
Co-authored-by: Bastian Köcher <git@kchr.de>
- refactor bounds handling in the AST a bit
- add HIR for bounds
- add `Ty::Dyn` and `Ty::Opaque` variants and lower `dyn Trait` / `impl Trait`
syntax to them
