BinaryEntry

Struct BinaryEntry 

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pub struct BinaryEntry {
    pub fid: FieldId,
    pub tag: TypeTag,
    pub value: BinaryValue,
}
Expand description

A single field encoded in binary format

Fields§

§fid: FieldId

Field identifier (16-bit unsigned integer)

§tag: TypeTag

Type tag indicating value type

§value: BinaryValue

The encoded value

Implementations§

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impl BinaryEntry

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pub fn new(fid: FieldId, value: BinaryValue) -> Self

Creates a new binary entry

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pub fn from_field(field: &LnmpField) -> Result<Self, BinaryError>

Creates a new binary entry from an LnmpField

§Errors

Returns BinaryError::InvalidValue if the field contains nested structures (not supported in v0.4 binary format)

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pub fn to_field(&self) -> LnmpField

Converts to an LnmpField

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pub fn type_tag(&self) -> TypeTag

Returns the type tag of this entry

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pub fn encode(&self) -> Vec<u8>

Encodes the entry to bytes

Binary layout:

┌──────────┬──────────┬──────────────────┐
│   FID    │  THTAG   │      VALUE       │
│ (2 bytes)│ (1 byte) │   (variable)     │
└──────────┴──────────┴──────────────────┘
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pub fn decode(bytes: &[u8]) -> Result<(Self, usize), BinaryError>

Decodes an entry from bytes

Returns a tuple of (BinaryEntry, bytes_consumed)

§Errors

Returns errors for:

  • UnexpectedEof: Insufficient data
  • InvalidTypeTag: Unknown type tag
  • InvalidVarInt: Malformed VarInt
  • InvalidUtf8: Invalid UTF-8 in string
  • InvalidValue: Other value decoding errors

Trait Implementations§

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impl Clone for BinaryEntry

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fn clone(&self) -> BinaryEntry

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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 PartialEq for BinaryEntry

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fn eq(&self, other: &BinaryEntry) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl StructuralPartialEq for BinaryEntry

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.