Function recovered_aggregate_fields 

pub fn recovered_aggregate_fields(
    source: &str,
    span: Range<usize>,
) -> Vec<RecoveredAggregateField>

Recover the direct members of an aggregate body region the ordinary parse could not place.

An object-like field-list macro invocation inside a member list has no grammar rule, so tree-sitter collapses the aggregate’s head and body into one ERROR container and the members after the invocation lose their declaration shape. Reparsing the exact byte slice that follows the invocation as a synthetic aggregate body restores that shape from the grammar, and every returned range maps back to the original source.