batch-impl 0.8.2

A proc-macro library for batch generating trait impls with a powerful DSL
Documentation 
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error: batch-impl: custom constants are not supported by `#[batch_impl]` / `#[batch_impl_only]` — write the type matrix directly with `^` / `-` / `*` instead
 --> tests/ui/const_attr_unsupported.rs:6:1
  |
6 | #[batch_impl(@small = [u8, u16]; @small)]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the attribute macro `batch_impl` (in Nightly builds, run with -Z macro-backtrace for more info)