Constant syntax_ext::proc_macro_registrar::PROC_MACRO_KINDS[][src]

const PROC_MACRO_KINDS: [&'static str; 3] = ["proc_macro_derive", "proc_macro_attribute", "proc_macro"]
🔬 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?