Struct ResolverLookup

Source

pub struct ResolverLookup<'a>(pub &'a dyn Resolver);

Expand description

Adapts a &dyn Resolver to Lookup, since both traits share the exact lookup(&self, name: &str) -> Option<String> signature. Needed at the config↔variables module boundary: variables::expand::expand_map and expand_definition take &dyn Lookup, but config::caproni’s loader only has a Box<dyn Resolver> to offer them. A thin wrapper struct is used rather than impl Lookup for dyn Resolver, because Rust’s dyn-to- dyn coercion only applies to supertrait upcasting, not an arbitrary blanket impl relating two unrelated traits.

Tuple Fields§

§0: &'a dyn Resolver

ResolverLookup

Struct ResolverLookup Copy item path

Tuple Fields§

Trait Implementations§

impl Lookup for ResolverLookup<'_>

fn lookup(&self, name: &str) -> Option<String>

Auto Trait Implementations§

impl<'a> !RefUnwindSafe for ResolverLookup<'a>

impl<'a> !Send for ResolverLookup<'a>

impl<'a> !Sync for ResolverLookup<'a>

impl<'a> !UnwindSafe for ResolverLookup<'a>

impl<'a> Freeze for ResolverLookup<'a>

impl<'a> Unpin for ResolverLookup<'a>

impl<'a> UnsafeUnpin for ResolverLookup<'a>

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DTwhere ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DTwhere ST: ?Sized, DT: ?Sized,

impl<T> From<T> for T

fn from(t: T) -> T

impl<A, B, T> HttpServerConnExec<A, B> for Twhere B: Body,

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> PolicyExt for Twhere T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T> Read<Exclusive, BecauseExclusive> for Twhere T: ?Sized,

impl<T> Same for T

type Output = T

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

Struct ResolverLookup

impl<T> Any for T
where T: 'static + ?Sized,

impl<T> Borrow<T> for T
where T: ?Sized,

impl<T> BorrowMut<T> for T
where T: ?Sized,

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<A, B, T> HttpServerConnExec<A, B> for T
where B: Body,

impl<T, U> Into<U> for T
where U: From<T>,

impl<T> PolicyExt for T
where T: ?Sized,

fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,