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use std::sync::Arc;
use lsp_types::RenameParams;
use rowan::{TextRange, TextSize};
use rustc_hash::FxHashMap;
use crate::{
features::cursor::{CursorContext, HasPosition},
syntax::latex,
};
use super::{Indel, RenameResult};
pub(super) fn prepare_command_rename<P: HasPosition>(
context: &CursorContext<P>,
) -> Option<TextRange> {
context.cursor.command_range(context.offset)
}
pub(super) fn rename_command(context: &CursorContext<RenameParams>) -> Option<RenameResult> {
prepare_command_rename(context)?;
let name = context.cursor.as_latex()?.text();
let mut changes = FxHashMap::default();
for document in context.request.workspace.documents_by_uri.values() {
if let Some(data) = document.data.as_latex() {
let root = latex::SyntaxNode::new_root(data.green.clone());
let edits = root
.descendants_with_tokens()
.filter_map(|element| element.into_token())
.filter(|token| token.kind().is_command_name() && token.text() == name)
.map(|token| {
let range = token.text_range();
Indel {
delete: TextRange::new(range.start() + TextSize::from(1), range.end()),
insert: context.request.params.new_name.clone(),
}
})
.collect();
changes.insert(Arc::clone(&document.uri), edits);
}
}
Some(RenameResult { changes })
}
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