batch-impl 0.5.5

A proc-macro library for batch generating trait impls with a powerful DSL
Documentation 
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error: batch-impl: `-` 后缺少操作数（如 `T-U`）
 --> tests/ui/dangling_operator.rs:4:1
  |
4 | #[batch_impl(usize, f32 Vec^-)]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the attribute macro `batch_impl` (in Nightly builds, run with -Z macro-backtrace for more info)