Function syntax_ext::format::expand_preparsed_format_args[][src]

pub fn expand_preparsed_format_args(
    ecx: &mut ExtCtxt,
    sp: Span,
    efmt: P<Expr>,
    args: Vec<P<Expr>>,
    names: HashMap<String, usize>,
    append_newline: bool
) -> P<Expr>
🔬 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?

Take the various parts of format_args!(efmt, args..., name=names...) and construct the appropriate formatting expression.