syntax_data: {"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:         // Compute the file hash before any normalization.
context_before:     ) -> Result<Self, OffsetOverflowError> {
context_after:         let src_hash = SourceFileHash::new_in_memory(hash_kind, src.as_bytes());