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use base_db::{
semantics::tex::{Label, LabelKind},
util::{queries::Object, render_label},
FeatureParams,
};
use rustc_hash::FxHashMap;
use crate::{InlayHint, InlayHintBuilder, InlayHintData};
pub(super) fn find_hints(builder: &mut InlayHintBuilder) -> Option<()> {
let definitions = base_db::semantics::tex::Label::find_all(&builder.params.feature.project)
.filter(|(_, label)| label.kind == LabelKind::Definition)
.map(|(_, label)| (label.name_text(), label))
.collect::<FxHashMap<_, _>>();
let params = &builder.params.feature;
let data = params.document.data.as_tex()?;
let range = builder.params.range;
for label in data
.semantics
.labels
.iter()
.filter(|label| label.name.range.intersect(range).is_some())
{
if let Some(hint) = process_label(params, &definitions, label) {
builder.hints.push(hint);
}
}
Some(())
}
fn process_label<'a>(
params: &FeatureParams<'a>,
definitions: &FxHashMap<&str, &'a Label>,
label: &'a Label,
) -> Option<InlayHint<'a>> {
let config = ¶ms.workspace.config().inlay_hints;
let offset = label.full_range.end();
let data = if label.kind == LabelKind::Definition {
if !config.label_definitions {
return None;
}
let label = render_label(params.workspace, ¶ms.project, label)?;
InlayHintData::LabelDefinition(label)
} else {
if !config.label_references {
return None;
}
let label = definitions.get(label.name.text.as_str())?;
let label = render_label(params.workspace, ¶ms.project, label)?;
InlayHintData::LabelReference(label)
};
Some(InlayHint { offset, data })
}
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