rust/crates/ra_ide_api
bors[bot] 561bb979ce
Merge #2169
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>
2019-11-09 09:13:14 +00:00
..
src Merge #2169 2019-11-09 09:13:14 +00:00
Cargo.toml Reexport relative_path from ra_db 2019-11-04 01:14:17 +03:00