Trait Matcher 

pub trait Matcher {
    type Match<'a>;

    // Required method
    fn try_match<'a>(item: &'a ExtDTypeRef) -> Option<Self::Match<'a>>;

    // Provided method
    fn matches(item: &ExtDTypeRef) -> bool { ... }
}

A trait for matching extension dtypes.

Required Associated Types

type Match<'a>

The matched view type.

Required Methods

fn try_match<'a>(item: &'a ExtDTypeRef) -> Option<Self::Match<'a>>

Try to match the given extension type, returning the matched dtype if successful.

Provided Methods

fn matches(item: &ExtDTypeRef) -> bool

Check if the given extension dtype matches this matcher.

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

impl Matcher for AnyTemporal

type Match<'a> = TemporalMetadata<'a>

impl<V: ExtDTypeVTable> Matcher for V

type Match<'a> = &'a <V as ExtDTypeVTable>::Metadata