Function syntax::ext::base::get_single_str_from_tts

pub fn get_single_str_from_tts(
    cx: &mut ExtCtxt, 
    sp: Span, 
    tts: &[TokenTree], 
    name: &str
) -> Option<String>

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Extract the string literal from the first token of tts. If this is not a string literal, emit an error and return None.