38 lines
961 B
Rust
38 lines
961 B
Rust
use ra_syntax::{SyntaxKind, TextRange, T};
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use crate::{AssistContext, AssistId, AssistKind, Assists};
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// Assist: remove_mut
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//
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// Removes the `mut` keyword.
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//
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// ```
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// impl Walrus {
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// fn feed(&mut<|> self, amount: u32) {}
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// }
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// ```
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// ->
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// ```
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// impl Walrus {
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// fn feed(&self, amount: u32) {}
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// }
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// ```
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pub(crate) fn remove_mut(acc: &mut Assists, ctx: &AssistContext) -> Option<()> {
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let mut_token = ctx.find_token_at_offset(T![mut])?;
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let delete_from = mut_token.text_range().start();
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let delete_to = match mut_token.next_token() {
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Some(it) if it.kind() == SyntaxKind::WHITESPACE => it.text_range().end(),
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_ => mut_token.text_range().end(),
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};
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let target = mut_token.text_range();
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acc.add(
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AssistId("remove_mut", AssistKind::Refactor),
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"Remove `mut` keyword",
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target,
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|builder| {
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builder.delete(TextRange::new(delete_from, delete_to));
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},
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)
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}
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