1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
use syntax::{SyntaxKind, TextRange, T};
use crate::{AssistContext, AssistId, AssistKind, Assists};
// Assist: remove_mut
//
// Removes the `mut` keyword.
//
// ```
// impl Walrus {
// fn feed(&mut$0 self, amount: u32) {}
// }
// ```
// ->
// ```
// impl Walrus {
// fn feed(&self, amount: u32) {}
// }
// ```
pub(crate) fn remove_mut(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
let mut_token = ctx.find_token_syntax_at_offset(T![mut])?;
let delete_from = mut_token.text_range().start();
let delete_to = match mut_token.next_token() {
Some(it) if it.kind() == SyntaxKind::WHITESPACE => it.text_range().end(),
_ => mut_token.text_range().end(),
};
let target = mut_token.text_range();
acc.add(
AssistId("remove_mut", AssistKind::Refactor),
"Remove `mut` keyword",
target,
|builder| {
builder.delete(TextRange::new(delete_from, delete_to));
},
)
}
|
