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Seed

Struct Seed 

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pub struct Seed<'a> {
    pub ty: &'a Type,
}
Expand description

A type-directed serde::de::DeserializeSeed that decodes JSON straight into a stmt::Value of the seed’s stmt::Type — no serde_json::Value intermediate. The type is required because the wire form is ambiguous for scalars (Uuid/String are both strings; the integer widths are all numbers). A structural Type::Object position switches to shape-directed decoding ([AnySeed]).

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§ty: &'a Type

The expected type of the value being decoded.

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impl<'de> DeserializeSeed<'de> for Seed<'_>

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type Value = Value

The type produced by using this seed.
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fn deserialize<D: Deserializer<'de>>(self, de: D) -> Result<Value, D::Error>

Equivalent to the more common Deserialize::deserialize method, except with some initial piece of data (the seed) passed in.

Auto Trait Implementations§

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impl<'a> Freeze for Seed<'a>

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impl<'a> RefUnwindSafe for Seed<'a>

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impl<'a> Send for Seed<'a>

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impl<'a> Sync for Seed<'a>

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impl<'a> Unpin for Seed<'a>

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impl<'a> UnsafeUnpin for Seed<'a>

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impl<'a> UnwindSafe for Seed<'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