derive_utils

Fix "overflow evaluating the requirement" error when the first variant and the other variant have the same type.

Fix a bug introduced in 0.14.0.

Allow quote variables in the trait definition of quick_derive! macro.

This is considered as a breaking change because it will no longer allow a comma after the trait definition.

Change the second argument of derive_trait and EnumImpl::from_trait from syn::Path to &syn::Path.

Fix "overflow evaluating the requirement" error on recursive structures without type parameters. (#47)

quick_derive! macro now accepts both proc_macro2::TokenStream and proc_macro::TokenStream as input.

quick_derive! macro no longer supports trait path elision.

The parentheses that wrap the trait path passed to quick_derive! macro are no longer needed. For example:

  quick_derive! {
      input,
      // trait path
-     (std::iter::Iterator),
+     std::iter::Iterator,
      // trait definition
      trait Iterator {
          type Item;
          fn next(&mut self) -> Option<Self::Item>;
          fn size_hint(&self) -> (usize, Option<usize>);
      }
  }

The way of specifying super trait's associated types has been changed.

  quick_derive! {
      input,
-     // super trait's associated types
-     Item,
-     // trait path
-     (std::iter::ExactSizeIterator),
+     // trait path
+     std::iter::ExactSizeIterator,
+     // super trait's associated types
+     <Item>,
      // trait definition
      trait ExactSizeIterator: Iterator {
          fn len(&self) -> usize;
      }
  }

Added derive_trait function.

Added EnumImpl::{new, from_trait} functions.

Added EnumData::{field_types, variant_idents} methods.

Removed derive_trait! macro in favor of derive_trait function.

Removed EnumData::make_impl and EnumData::impl_with_capacity in favor of EnumImpl::new.

Removed EnumData::make_impl_trait and EnumData::impl_trait_with_capacity in favor of EnumImpl::from_trait.

Removed EnumImpl::push_generic_param_ident in favor of EnumImpl::push_generic_param(TypeParam::from(ident).into()).

Removed MaybeEnum and EnumElements in favor of syn::parse::<EnumData>().

Removed some hidden APIs.

Implemented Deref<Target = syn::ItemEnum>, syn::parse::Parse, and quote::ToTokens for EnumData

Implemented From<EnumData> for syn::ItemEnum

Updated proc-macro2, syn, and quote to 1.0.

Banned manual implementation of MaybeEnum for forward compatibility.

Addef vis: Visibility field to EnumElements.

Hided some undocumented items from the public API.

Added quote::ToTokens bound to MaybeEnum.

Removed EnumData::{from_item, from_derive} in favor of EnumData::new

Improved error messages.

Improved support for arbitrary self type.

Improved the error messages.

Transition to Rust 2018. With this change, the minimum required version will go up to Rust 1.31.

Improved the error messages.

Removed Error and Result types. The current derive_utils uses syn::Error and syn::Result types.