syntax_data: {"ast_node_type":"struct","tokens":[{"end":68,"kind":"keyword","start":0,"text":"//"}]}
source_snippet: // HACK(eddyb) boxed to avoid moving around a large struct by-value.
context_after: pub struct FmtPrinter<'a, 'tcx>(Box<FmtPrinterData<'a, 'tcx>>);