darling_core 0.9.0

Helper crate for proc-macro library for reading attributes into structs when implementing custom derives. Use https://crates.io/crates/darling in your code.
Documentation 
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use fnv::FnvHashSet;
use syn::Ident;

/// A set of idents.
pub type IdentSet = FnvHashSet<Ident>;

/// A set of references to idents.
pub type IdentRefSet<'a> = FnvHashSet<&'a Ident>;