syntax_data: {"ast_node_type":"other","tokens":[{"end":14,"kind":"keyword","start":0,"text":"$("}]}
source_snippet:             $(
context_before:             use super::{InlineAsmReg, InlineAsmRegClass};
context_after:                 if $($filter(_arch, _reloc_model, _target_features, _target, false).is_ok() &&)? true {