Enum relay_protocol::SkipSerialization

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pub enum SkipSerialization {
    Never,
    Null(bool),
    Empty(bool),
}
Expand description

Defines behavior for skipping the serialization of fields.

This behavior is configured via the skip_serialization attribute on fields of structs. It is passed as parameter to ToValue::skip_serialization of the corresponding field.

The default for fields in derived structs is SkipSerialization::Null(true), which will skips null values under the field recursively. Newtype structs (MyType(T)) and enums pass through to their inner type and variant, respectively.

§Example

#[derive(Debug, Empty, ToValue)]
struct Helper {
    #[metastructure(skip_serialization = "never")]
    items: Annotated<Array<String>>,
}

Variants§

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Never

Serialize all values. Missing values will be serialized as null.

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Null(bool)

Do not serialize null values but keep empty collections.

If the bool flag is set to true, this applies to all descendants recursively; if it is set to false, this only applies to direct children and does not propagate down.

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Empty(bool)

Do not serialize empty objects as indicated by the Empty trait.

If the bool flag is set to true, this applies to all descendants recursively; if it is set to false, this only applies to direct children and does not propagate down.

Implementations§

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impl SkipSerialization

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pub fn descend(self) -> Self

Returns the serialization behavior for child elements.

Shallow behaviors - Null(false) and Empty(false) - propagate as Never, all others remain the same. This allows empty containers to be skipped while their contents will serialize with null values.

Trait Implementations§

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impl Clone for SkipSerialization

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fn clone(&self) -> SkipSerialization

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SkipSerialization

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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 Default for SkipSerialization

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for SkipSerialization

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fn eq(&self, other: &SkipSerialization) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for SkipSerialization

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impl Eq for SkipSerialization

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impl StructuralPartialEq for SkipSerialization

Auto Trait Implementations§

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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, 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.