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MapDecoder

Struct MapDecoder 

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pub struct MapDecoder<'a, 'de, const CHECKED: bool> { /* private fields */ }
Expand description

Map decoder guard that manages depth, length, and key ordering.

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impl<'de, const CHECKED: bool> MapDecoder<'_, 'de, CHECKED>

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pub const fn remaining(&self) -> usize

Remaining entries in the map.

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pub fn next_key(&mut self) -> Result<Option<&'de str>, CborError>

Decode the next map key as text.

Returns Ok(None) when the map is exhausted.

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Returns an error if decoding fails or the map is malformed.

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pub fn next_value<T: CborDecode<'de>>(&mut self) -> Result<T, CborError>

Decode the value corresponding to the last returned key.

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Returns an error if decoding fails or the map is malformed.

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pub fn decode_value<F, T>(&mut self, f: F) -> Result<T, CborError>
where F: FnOnce(&mut Decoder<'de, CHECKED>) -> Result<T, CborError>,

Decode the value corresponding to the last returned key using a custom decoder.

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Returns an error if decoding fails or the map is malformed.

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pub fn next_entry<V: CborDecode<'de>>( &mut self, ) -> Result<Option<(&'de str, V)>, CborError>

Decode the next key/value entry in the map.

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Returns an error if decoding fails or the map is malformed.

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pub fn skip_remaining(&mut self) -> Result<(), CborError>

Skip all remaining map entries.

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Returns an error if skipping fails or the map is malformed.

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impl<const CHECKED: bool> Drop for MapDecoder<'_, '_, CHECKED>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, 'de, const CHECKED: bool> Freeze for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> RefUnwindSafe for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> Send for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> Sync for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> Unpin for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> UnsafeUnpin for MapDecoder<'a, 'de, CHECKED>

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impl<'a, 'de, const CHECKED: bool> !UnwindSafe for MapDecoder<'a, 'de, CHECKED>

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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> Same for T

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type Output = T

Should always be Self
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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.