syntax_data: {"ast_node_type":"other","tokens":[{"end":80,"kind":"keyword","start":0,"text":"self.slice_or_array_pattern(pat.span,"}]}
source_snippet:                 self.slice_or_array_pattern(pat.span, ty, prefix, slice, suffix)
context_before:             hir::PatKind::Slice(prefix, slice, suffix) => {
context_after:             }