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ProjectedField

Struct ProjectedField 

pub struct ProjectedField<'a> {
    pub field: &'a Field,
    pub mapping: &'a Field,
    pub path: Path,
    pub nesting: usize,
}
Expand description

A field resolved from an expression, including its storage mapping and scope.

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§field: &'a Field

The application field at the end of the projection.

§mapping: &'a Field

The field’s mapping within the referenced root model.

§path: Path

The schema path from the referenced root model to the field.

This path carries no query scope. Converting it to an expression with Path::into_stmt produces a current-scope reference; callers must preserve nesting when reconstructing an outer reference.

§nesting: usize

How many query scopes outward the root reference points.

Zero references the current scope, one references its parent, and so on.

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impl<'a> Debug for ProjectedField<'a>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> Freeze for ProjectedField<'a>

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impl<'a> RefUnwindSafe for ProjectedField<'a>

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impl<'a> Send for ProjectedField<'a>

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impl<'a> Sync for ProjectedField<'a>

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impl<'a> Unpin for ProjectedField<'a>

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impl<'a> UnsafeUnpin for ProjectedField<'a>

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impl<'a> UnwindSafe for ProjectedField<'a>

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impl<T> Any for T
where 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 T
where 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 T
where 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 T
where 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 T
where 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 T
where 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