Struct ion_rs::binary::var_int::VarInt

pub struct VarInt { /* private fields */ }

Implementations

impl VarInt

Represents a variable-length signed integer. See the VarUInt and VarInt Fields section of the binary Ion spec for more details.

pub fn read<R: IonDataSource>(data_source: &mut R) -> IonResult<VarInt>

Reads a VarInt from the provided data source.

pub fn write_i64<W: Write>(sink: &mut W, value: i64) -> IonResult<usize>

Writes an i64 to sink, returning the number of bytes written.

pub fn write_negative_zero<W: Write>(sink: &mut W) -> IonResult<usize>

Encodes a negative zero as an VarInt and writes it to the provided sink. Returns the number of bytes written.

This method is similar to write_i64. However, because an i64 cannot represent a negative zero, a separate method is required.

pub fn is_negative_zero(&self) -> bool

Returns true if the VarInt is negative zero.

pub fn value(&self) -> i64

Returns the value of the signed integer. If the VarInt is negative zero, this method will return 0. Use the is_negative_zero method to check for negative zero explicitly.

pub fn size_in_bytes(&self) -> usize

Returns the number of bytes that were read from the data source to construct this signed integer

Trait Implementations

impl Debug for VarInt

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

Formats the value using the given formatter.