fn handle_vec_semi(
context: &RewriteContext<'_>,
shape: Shape,
arg_vec: Vec<MacroArg>,
macro_name: String,
delim_token: Delimiter,
span: Span,
) -> Result<String, RewriteError>fn handle_vec_semi(
context: &RewriteContext<'_>,
shape: Shape,
arg_vec: Vec<MacroArg>,
macro_name: String,
delim_token: Delimiter,
span: Span,
) -> Result<String, RewriteError>