enum_convert 0.2.0

A Rust procedural macro library for deriving automatic conversions between enum variants
Documentation 
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error: expected either #[enum_from] (if there is no ambiguity) or a list of variants, for example #[enum_from(Source1::VariantA, Source2::VariantB)]
  --> tests/enum_from/compile_fail/variant/name_value_attribute.rs:10:5
   |
10 |     #[enum_from = "Source::Unit"] // Should be #[enum_from(Source::Unit)]
   |     ^