结构体 AvroCursor 

pub(crate) struct AvroCursor<'a> {
    buf: &'a [u8],
    start_len: usize,
}

字节切片的封装，为 Avro 提供低级解码

https://avro.apache.org/docs/1.11.1/specification/#encodings

字段

buf: &'a [u8]

start_len: usize

实现

impl<'a> AvroCursor<'a>

pub(crate) fn new(buf: &'a [u8]) -> Self

pub(crate) fn position(&self) -> usize

返回当前光标位置

pub(crate) fn get_u8(&mut self) -> Result<u8, ArrowError>

读取单个 u8

pub(crate) fn get_bool(&mut self) -> Result<bool, ArrowError>

pub(crate) fn read_vlq(&mut self) -> Result<u64, ArrowError>

pub(crate) fn get_int(&mut self) -> Result<i32, ArrowError>

pub(crate) fn get_long(&mut self) -> Result<i64, ArrowError>

pub(crate) fn get_bytes(&mut self) -> Result<&'a [u8], ArrowError>

pub(crate) fn get_float(&mut self) -> Result<f32, ArrowError>

pub(crate) fn get_double(&mut self) -> Result<f64, ArrowError>

pub(crate) fn get_fixed(&mut self, n: usize) -> Result<&'a [u8], ArrowError>

从缓冲区中精确读取 n 字节（例如，用于 Avro fixed）。

Trait 实现

impl<'a> Debug for AvroCursor<'a>

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

使用给定的格式化程序格式化值。 阅读更多