[−][src]Macro macro_helper::count_spec_tokens
count_spec_tokens!() { /* proc-macro */ }
Expands to the number of spec tokens you pass in tokens => spec syntax,useful when expanding expansion bucles with a given separator matched in spec;to retrieve the number of expansions,as it have more precedence than the other macros.
If you omit the =>
it will have the same effect of count_tokens.