batch-impl 0.8.2

A proc-macro library for batch generating trait impls with a powerful DSL
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error: batch-impl: `@N` / `@g_i` position references are not supported on the ItemImpl entry
 --> tests/ui/implentry_at_num_banned.rs:4:1
  |
4 | #[batch_impl(W : Box<@0>)]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the attribute macro `batch_impl` (in Nightly builds, run with -Z macro-backtrace for more info)