Trait FromAttribute 

pub trait FromAttribute: Sized {
    // Required method
    fn parse(group: &Group) -> Result<Option<Self>>;
}

Helper trait for AttributeAccess methods.

This can be implemented on your own type to make parsing easier.

Some functions that can make your life easier:

• utils::parse_tagged_attribute is a helper for parsing attributes in the format of #[prefix(...)]

Required Methods

fn parse(group: &Group) -> Result<Option<Self>>

Try to parse the given group into your own type. Return Ok(None) if the parsing failed or if the attribute was not this type.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors