pub enum VariableSource<'a> {
    Empty,
    Directory(&'a DirectorySchema<'a>),
    Binding(&'a Identifier<'a>, String),
    Map(HashMap<String, String>),
}
Expand description

Ways in which variables may be provided by the current scope

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Empty

No available variables

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Directory(&'a DirectorySchema<'a>)

A directory schema description, with its own variables

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Binding(&'a Identifier<'a>, String)

A binding of a schema to a single name

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Map(HashMap<String, String>)

A simple key-value map

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impl<'a> VariableSource<'a>

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pub fn as_binding(&self) -> Option<(&Identifier<'a>, &String)>

Convenience for attempting to cast to a single schema binding

Trait Implementations§

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impl<'a> Debug for VariableSource<'a>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'a> Default for VariableSource<'a>

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fn default() -> VariableSource<'a>

Returns the “default value” for a type. Read more
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impl From<HashMap<String, String>> for VariableSource<'_>

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fn from(map: HashMap<String, String>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for VariableSource<'a>

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impl<'a> Send for VariableSource<'a>

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impl<'a> Sync for VariableSource<'a>

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impl<'a> Unpin for VariableSource<'a>

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impl<'a> UnwindSafe for VariableSource<'a>

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more