batch-impl 0.5.6

A proc-macro library for batch generating trait impls with a powerful DSL
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error: batch-impl: #delegate 方法 `Dummy::m` 的参数 `(a, b) : (i32, i32)` 无法委托转发：仅支持 `self` 与纯标识符模式
 --> tests/ui/delegate_pattern_arg.rs:4:1
  |
4 | #[batch_impl_only(usize #delegate(m){**self})]
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the attribute macro `batch_impl_only` (in Nightly builds, run with -Z macro-backtrace for more info)