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make typing infra slightly more extensible

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This commit is contained in:
Aleksey Kladov 2019-10-25 11:19:26 +03:00
parent 518f99e16b
commit 8d2fd59cfb
3 changed files with 74 additions and 54 deletions
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28
crates/ra_ide_api/src/lib.rs
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@ -407,24 +407,16 @@ impl Analysis {
self.with_db(|db| typing::on_enter(&db, position))
}
/// Returns an edit which should be applied after `=` was typed. Primarily,
/// this works when adding `let =`.
// FIXME: use a snippet completion instead of this hack here.
pub fn on_eq_typed(&self, position: FilePosition) -> Cancelable<Option<SourceChange>> {
self.with_db(|db| {
let parse = db.parse(position.file_id);
let file = parse.tree();
let edit = typing::on_eq_typed(&file, position.offset)?;
Some(SourceChange::source_file_edit(
"add semicolon",
SourceFileEdit { edit, file_id: position.file_id },
))
})
}
/// Returns an edit which should be applied when a dot ('.') is typed on a blank line, indenting the line appropriately.
pub fn on_dot_typed(&self, position: FilePosition) -> Cancelable<Option<SourceChange>> {
self.with_db(|db| typing::on_dot_typed(&db, position))
/// Returns an edit which should be applied after a character was typed.
///
/// This is useful for some on-the-fly fixups, like adding `;` to `let =`
/// automatically.
pub fn on_char_typed(
&self,
position: FilePosition,
char_typed: char,
) -> Cancelable<Option<SourceChange>> {
self.with_db(|db| typing::on_char_typed(&db, position, char_typed))
}
/// Returns a tree representation of symbols in the file. Useful to draw a