Struct postcard::ser_flavors::Size

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pub struct Size { /* private fields */ }
Expand description

The Size flavor is a measurement flavor, which accumulates the number of bytes needed to serialize the data.

use postcard::{serialize_with_flavor, ser_flavors};

let value = false;
let size = serialize_with_flavor(&value, ser_flavors::Size::default()).unwrap();

assert_eq!(size, 1);

Trait Implementations§

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impl Default for Size

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fn default() -> Size

Returns the “default value” for a type. Read more
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impl Flavor for Size

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type Output = usize

The Output type is what this storage “resolves” to when the serialization is complete, such as a slice or a Vec of some sort.
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fn try_push(&mut self, _b: u8) -> Result<()>

The try_push() trait method can be used to push a single byte to be modified and/or stored
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fn try_extend(&mut self, b: &[u8]) -> Result<()>

The try_extend() trait method can be implemented when there is a more efficient way of processing multiple bytes at once, such as copying a slice to the output, rather than iterating over one byte at a time.
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fn finalize(self) -> Result<Self::Output>

Finalize the serialization process

Auto Trait Implementations§

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impl Freeze for Size

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impl RefUnwindSafe for Size

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impl Send for Size

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impl Sync for Size

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impl Unpin for Size

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impl UnwindSafe for Size

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> 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, 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.