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BufferWriter

Struct BufferWriter 

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

Schreib-Buffer mit Alignment-Tracking und konfigurierbarer Endianness.

Phase 0 nutzt Vec<u8> als Backing — wachsendes alloc-Feature.

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impl BufferWriter

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pub fn new(endianness: Endianness) -> Self

Erstellt einen leeren Writer mit der gegebenen Endianness.

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pub fn with_capacity(endianness: Endianness, cap: usize) -> Self

Erstellt einen Writer mit vor-allokierter Kapazitaet.

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pub fn endianness(&self) -> Endianness

Liefert die aktuelle Endianness.

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pub fn position(&self) -> usize

Aktuelle Position (== bisher geschriebene Byte-Anzahl).

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pub fn into_bytes(self) -> Vec<u8>

Konsumiert den Writer und liefert den geschriebenen Buffer.

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pub fn as_bytes(&self) -> &[u8]

Read-only Sicht auf den bisher geschriebenen Buffer.

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pub fn align(&mut self, alignment: usize)

Fuegt Null-Padding ein, bis die aktuelle Position ein Vielfaches von alignment ist. Alignment muss eine Zweierpotenz sein (1, 2, 4, 8); andere Werte sind in XCDR nicht definiert.

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pub fn write_bytes(&mut self, data: &[u8]) -> Result<(), EncodeError>

Schreibt rohe Bytes ohne Alignment.

§Errors

Liefert nie einen Fehler bei Vec-basiertem Backing — die Signatur ist symmetrisch zum Slice-basierten Writer (Phase 1).

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pub fn write_u8(&mut self, value: u8) -> Result<(), EncodeError>

Schreibt ein einzelnes Byte (1-Byte Alignment).

§Errors

Wie write_bytes.

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pub fn write_u16(&mut self, value: u16) -> Result<(), EncodeError>

Aligned + schreibt u16.

§Errors

Wie write_bytes.

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pub fn write_u32(&mut self, value: u32) -> Result<(), EncodeError>

Aligned + schreibt u32.

§Errors

Wie write_bytes.

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pub fn write_u64(&mut self, value: u64) -> Result<(), EncodeError>

Aligned + schreibt u64.

§Errors

Wie write_bytes.

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pub fn write_string(&mut self, s: &str) -> Result<(), EncodeError>

Schreibt einen CDR-String (§9.3.2.7): 4-byte length (inkl. Null-Terminator) + UTF-8 Bytes + 1 Null-Byte. Kein Trailing- Padding — das naechste Feld aligned sich selbst.

§Errors

Wie write_bytes.

Trait Implementations§

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impl Clone for BufferWriter

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fn clone(&self) -> BufferWriter

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

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

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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.