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use std::sync::Arc;
use lsp_types::GotoDefinitionParams;
use rowan::ast::AstNode;
use crate::{features::cursor::CursorContext, syntax::latex};
use super::DefinitionResult;
pub(super) fn goto_command_definition(
context: &CursorContext<GotoDefinitionParams>,
) -> Option<Vec<DefinitionResult>> {
let name = context
.cursor
.as_latex()
.filter(|token| token.kind().is_command_name())?;
let origin_selection_range = name.text_range();
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());
if let Some(result) = root
.descendants()
.filter_map(latex::CommandDefinition::cast)
.filter(|def| {
def.name()
.and_then(|name| name.command())
.map_or(false, |node| node.text() == name.text())
})
.find_map(|def| {
Some(DefinitionResult {
origin_selection_range,
target_uri: Arc::clone(&document.uri),
target_range: latex::small_range(&def),
target_selection_range: def.name()?.command()?.text_range(),
})
})
{
return Some(vec![result]);
}
}
}
None
}
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