Function rustc_builtin_macros::util::get_single_str_from_tts
source ยท pub(crate) fn get_single_str_from_tts(
cx: &mut ExtCtxt<'_>,
span: Span,
tts: TokenStream,
name: &str,
) -> ExpandResult<Result<Symbol, ErrorGuaranteed>, ()>
Expand description
Interpreting tts
as a comma-separated sequence of expressions,
expect exactly one string literal, or emit an error and return Err
.