syntax_data: {"ast_node_type":"variable","tokens":[{"end":79,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:             let root = ['a', 'b', 'c', 'd'][self as usize - Self::ax as usize];
context_before:         if self as u32 <= Self::dx as u32 {
context_after:             match modifier.unwrap_or(reg_default_modifier) {