Struct rkyv::with::AsString

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pub struct AsString;
Expand description

A wrapper that attempts to convert a type to and from UTF-8.

Types like OsString and PathBuf aren’t guaranteed to be encoded as UTF-8, but they usually are anyway. Using this wrapper will archive them as if they were regular Strings.

Regular serializers don’t support the custom error handling needed for this type by default. To use this wrapper, a custom serializer with an error type satisfying <S as Fallible>::Error: From<AsStringError> must be provided.

Example

use std::{ffi::OsString, path::PathBuf};
use rkyv::{Archive, with::AsString};

#[derive(Archive)]
struct Example {
    #[with(AsString)]
    os_string: OsString,
    #[with(AsString)]
    path: PathBuf,
}

Trait Implementations§

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impl ArchiveWith<OsString> for AsString

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type Archived = ArchivedString

The archived type of a With<F, Self>.
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type Resolver = StringResolver

The resolver of a With<F, Self>.
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unsafe fn resolve_with( field: &OsString, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived )

Resolves the archived type using a reference to the field type F. Read more
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impl ArchiveWith<PathBuf> for AsString

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type Archived = ArchivedString

The archived type of a With<F, Self>.
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type Resolver = StringResolver

The resolver of a With<F, Self>.
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unsafe fn resolve_with( field: &PathBuf, pos: usize, resolver: Self::Resolver, out: *mut Self::Archived )

Resolves the archived type using a reference to the field type F. Read more
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impl Debug for AsString

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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<D: Fallible + ?Sized> DeserializeWith<ArchivedString, OsString, D> for AsString

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fn deserialize_with( field: &ArchivedString, _: &mut D ) -> Result<OsString, D::Error>

Deserializes the field type F using the given deserializer.
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impl<D: Fallible + ?Sized> DeserializeWith<ArchivedString, PathBuf, D> for AsString

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fn deserialize_with( field: &ArchivedString, _: &mut D ) -> Result<PathBuf, D::Error>

Deserializes the field type F using the given deserializer.
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impl<S: Fallible + ?Sized> SerializeWith<OsString, S> for AsStringwhere S::Error: From<AsStringError>, str: SerializeUnsized<S>,

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fn serialize_with( field: &OsString, serializer: &mut S ) -> Result<Self::Resolver, S::Error>

Serializes the field type F using the given serializer.
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impl<S: Fallible + ?Sized> SerializeWith<PathBuf, S> for AsStringwhere S::Error: From<AsStringError>, str: SerializeUnsized<S>,

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fn serialize_with( field: &PathBuf, serializer: &mut S ) -> Result<Self::Resolver, S::Error>

Serializes the field type F using the given serializer.

Auto Trait Implementations§

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> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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impl<T> Borrow<T> for Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

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fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer
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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 Twhere U: From<T>,

const: unstable · source§

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> LayoutRaw for T

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fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Gets the layout of the type.
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impl<T> Pointee for T

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type Metadata = ()

The type for metadata in pointers and references to Self.
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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.
const: unstable · source§

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.
const: unstable · source§

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

Performs the conversion.