{"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"self.dcx().emit_err(errors::BothFfiConstAndPure"}]}
            self.dcx().emit_err(errors::BothFfiConstAndPure { attr_span });
            // `#[ffi_const]` functions cannot be `#[ffi_pure]`
        }