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use base_db::DocumentData;
use rowan::ast::AstNode;
use syntax::latex;
use crate::DefinitionContext;
use super::DefinitionResult;
pub(super) fn goto_definition(context: &mut DefinitionContext) -> Option<()> {
let data = context.params.document.data.as_tex()?;
let root = data.root_node();
let name = root
.token_at_offset(context.params.offset)
.find(|token| token.kind() == latex::COMMAND_NAME)?;
let origin_selection_range = name.text_range();
for document in &context.project.documents {
let DocumentData::Tex(data) = &document.data else {
continue;
};
let results = data
.root_node()
.descendants()
.filter_map(latex::CommandDefinition::cast)
.filter(|def| {
def.name()
.and_then(|name| name.command())
.map_or(false, |node| node.text() == name.text())
})
.filter_map(|def| {
Some(DefinitionResult {
origin_selection_range,
target: document,
target_range: latex::small_range(&def),
target_selection_range: def.name()?.command()?.text_range(),
})
});
context.results.extend(results);
}
Some(())
}
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