quickerr

A macro to define errors quickly, like thiserror but terser and more opinionated. Exclusively uses a decl macro, so compile times should not be greatly impacted. It uses markdown-like syntax. Primarily for my own personal use as I find it extremely helpful for quickly defining high quality errors.

Example:

rust quickerr! { # pub EnumError "a problem happened!" - MyOtherError - MySecondOtherError } this expands to: ```rust

[derive(Debug)]

[non_exhaustive]

pub enum EnumError { MyOtherError(MyOtherError), MySecondOtherError(MySecondOtherError), }

impl ::std::fmt::Display for EnumError { fn fmt(&self, f: &mut std::fmt::Formatter<'>) -> std::fmt::Result { f.writestr("a problem happened!") } }

impl ::std::error::Error for EnumError { fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { Some(match self { MyOtherError(err) => err, MySecondOtherError(err) => err, }) } }

impl ::std::convert::From for EnumError { fn from(source: MyOtherError) -> Self { Self::MyOtherError(source) } }

impl ::std::convert::From for EnumError { fn from(source: MySecondOtherError) -> Self { Self::MySecondOtherError(source) } } ```