This crate provides the EnumMacroGen derive proc macro for Rust, which simplifies handling variants of an enum. It generates declartive macros according to a given template.

Example

```rust use enummacrogen::EnumMacroGen;

[derive(EnumMacroGen)]

[enummacro[handletest={match: $self.handle_$variant($fields);}]]

enum Test { Foo(Item), Double(Item, Box), Bar, } ```

Instead of writing a match statement to handle each variant of Test, you can use the handle_test! a macro generated by EnumMacroGen.

rust // <**GENERATED**> macro_rules! handle_test { ($self:ident, $test:ident) => { match $test { Test::Foo(a_0) => { $self.handle_foo(a_0); } Test::Double(a_0, a_1) => { $self.handle_double(a_0, a_1); } Test::Bar => { $self.handle_bar(); } } }; } // </**GENERATED**>

Deriving EnumMacroGen

To use EnumMacroGen, simply add #[derive(EnumMacroGen)] above your enum declaration.

You can also specify the format of the generated macro with the enum_macro attribute. The attribute value should be a token list containing $variant and $fields, which will be replaced with the variant name and fields, respectively.