auto_enums

Updated to new nightly. iovec stabilized. #[enum_derive] automatically detects the rustc version and supports Read::read_vectored and Write::write_vectored as the part of Read and Write.

Supported for latest futures 0.3.0-alpha.16.

Fixed the problem that "failed to resolve: use of undeclared type or module" (E0433) error is shown when one or more compilation errors occur when multiple #[auto_enum] attributes are used.

Improved the error message of #[enum_derive] attribute.

Updated minimum derive_utils version to 0.7.0. This improves the error message.

Added some generated code examples.

Added "iovec" crate feature. This supports the unstable iovec feature (https://github.com/rust-lang/rust/issues/58452).

Updated minimum syn version to 0.15.29. This fixes some warnings.

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

Reduced the feature of "std" crate feature. The current "std" crate feature only determines whether to enable std library's traits (e.g., std::io::Read) support. "std" crate feature is enabled by default, but you can reduce compile time by disabling this feature.

Fixed problem where "macro attributes must be placed before #[derive]" error occurred when #[enum_derive] attribute was used with other attributes.

No longer need #[macro_use] extern crate auto_enums;. You can use #[auto_enum] attribute by use auto_enums::auto_enum;.

Removed "unstable" crate feature.