2222: Remove owner from Body r=matklad a=matklad
cc @flodiebold
I do this so that it's easier to move lowering code to another crate (owner is the only thing that tethers Body to the rest of the code), but it's interesting that this is a net reduction of lines. I think this might be considered an evidence that it's a good idea to not add "parent pointers" / parent ids to data structures, and instead add them to `ctx` objects which are used when building data structures
bors r+
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
2213: Hir generic param r=flodiebold a=matklad
r? @flodiebold
This should make the life of IDE easier: before, it got `GenericParam(u32)` which was of questionable utility. Now, it's a proper code_model type, so it can gain `source`, `name`, `module` and all the other hir methods, should the IDE need them. Moreover, IDE now doesn't care about internal representation of generic param, which seems like a long-term win.
The problem is, of course, that we now have to types named `GenericParam` in hir: this code_model type, and an internal type with an index which doesn't know about the parent. I think it's fine for the time being, but, after we finish cratefication of hir, this local `GenericParam` should move to `hir_def` or `hir_ty`, and *maybe* restrucured as `ParamId / PramData` pair.
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
2200: Add variables to HIR r=matklad a=matklad
Introduce a `hir::Variable`, which should cover locals, parameters and `self`. Unlike `PatId`, variable knows it's owner so it is self-contained, and should be more convenient to use from `ra_ide_api`.
The goal here is to hide more details about `Body` from hir, which should make it easier to move `Body` into `hir_def`. I don't think that `ra_ide_api` intrracts with bodies directly at the moment anyway, but the glue layer is based basically on `ast::BindPat`, which seems pretty brittle.
Co-authored-by: Aleksey Kladov <aleksey.kladov@gmail.com>
2205: Implement bulitin line! macro r=matklad a=edwin0cheng
This PR implements bulitin macro `line!` and add basic infra-structure for other bulitin macros:
1. Extend `MacroDefId` to support builtin macros
2. Add a `quote!` macro for simple quasi quoting.
Note that for support others builtin macros, eager macro expansion have to be supported first, this PR not try to handle it. :)
Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
2201: Resolve core types r=matklad a=Matthias247
This adds support for completion and goto definition of
types defined within the "core" crate. The core crate is
added as a dependency to each crate in the project.
The core crate exported it's own prelude. This caused
now all crates to inherit the core crates prelude instead
of the std crates. In order to avoid the problem the
prelude resolution has been changed to overwrite
an already resolved prelude if this was set to a crate
named core - in order to pick a better prelude like std.
Fixes#2199
Co-authored-by: Matthias Einwag <matthias.einwag@live.com>
This removes the special casing for the "core" prelude.
Whenever a later dependency also exports a prelude, it will replace
the formerly imported prelude. The utilized prelude then depends
purely on import order.
This adds support for completion and goto definition of
types defined within the "core" crate. The core crate is
added as a dependency to each crate in the project.
The core crate exported it's own prelude. This caused
now all crates to inherit the core crates prelude instead
of the std crates. In order to avoid the problem the
prelude resolution has been changed to overwrite
an already resolved prelude if this was set to a crate
named core - in order to pick a better prelude like std.
Fixes#2199
2169: MBE: Mapping spans for goto definition r=matklad a=edwin0cheng
Currently, go to definition gives the wrong span in MBE. This PR implement a mapping mechanism to fix it and it could be used for future MBE hygiene implementation.
The basic idea of the mapping is:
1. When expanding the macro, generated 2 `TokenMap` which maps the macro args and macro defs between tokens and input text-ranges.
2. Before converting generated `TokenTree` to `SyntaxNode`, generated a `ExpandedRangeMap` which is a mapping between token and output text-ranges.
3. Using these 3 mappings to construct an `ExpansionInfo` which can map between input text ranges and output text ranges.
Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
