syntax_data: {"ast_node_type":"other","tokens":[{"end":89,"kind":"keyword","start":0,"text":"///"}]}
source_snippet: /// are `Some`) get laid out one after the other (using `repr(C)` layout rules). Then the
context_before: /// Passing arguments in this mode works as follows: the registers in the `prefix` (the ones that
context_after: /// `rest.unit` register type gets repeated often enough to cover `rest.size`. This describes the