arrayvec • 0.7.6A vector with fixed capacity, backed by an array (it can be stored on the stack too). Implements fixed capacity ArrayVec and ArrayString.
bitflags • 1.3.2A macro to generate structures which behave like bitflags.
DIRECT
0
cfg-if • 1.0.0A macro to ergonomically define an item depending on a large number of #[cfg]
parameters. Structured like an if-else chain, the first matching branch is the
item that gets emitted.
proc-macro2 • 1.0.88A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
typenum • 1.17.0Typenum is a Rust library for type-level numbers evaluated at
compile time. It currently supports bits, unsigned integers, and signed
integers. It also provides a type-level array of type-level numbers, but its
implementation is incomplete.