13     let mut format_string = format!("{} {{{{ ", struct_name);  in gen_debug_impl()  localVariable
17         format_string.push_str("opaque");  in gen_debug_impl()
21                 format_string.push_str("union");  in gen_debug_impl()
31                         format_string.push_str(", ");  in gen_debug_impl()
34                     format_string.push_str(&fstring);  in gen_debug_impl()
40     format_string.push_str(" }}");  in gen_debug_impl()
41     tokens.insert(0, quote! { #format_string });  in gen_debug_impl()
91         let mut format_string = String::new();  in impl_debug()  localVariable
95                 format_string.push_str(", ");  in impl_debug()
99                 format_string.push_str(&format!("{} : {{:?}}", bitfield_name));  in impl_debug()
108         Some((format_string, tokens))  in impl_debug()