Trait FromNumber

pub trait FromNumber: Copy {
    // Required methods
    fn from_i64(v: i64) -> Result<Self, Error>;
    fn from_u64(v: u64) -> Result<Self, Error>;
}

A trait for converting a value to from u64 for use in varint encodings.

N.B. The protobuf behavior is to truncate integers rather than fail on overflow.

Required Methods

fn from_i64(v: i64) -> Result<Self, Error>

Convert from an i64.

fn from_u64(v: u64) -> Result<Self, Error>

Convert from a u64.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromNumber for bool

fn from_u64(v: u64) -> Result<bool, Error>

fn from_i64(v: i64) -> Result<bool, Error>

impl FromNumber for char

fn from_u64(v: u64) -> Result<char, Error>

fn from_i64(v: i64) -> Result<char, Error>

impl FromNumber for i8

fn from_u64(v: u64) -> Result<i8, Error>

fn from_i64(v: i64) -> Result<i8, Error>

impl FromNumber for i16

fn from_u64(v: u64) -> Result<i16, Error>

fn from_i64(v: i64) -> Result<i16, Error>

impl FromNumber for i32

fn from_u64(v: u64) -> Result<i32, Error>

fn from_i64(v: i64) -> Result<i32, Error>

impl FromNumber for i64

fn from_u64(v: u64) -> Result<i64, Error>

fn from_i64(v: i64) -> Result<i64, Error>

impl FromNumber for isize

fn from_u64(v: u64) -> Result<isize, Error>

fn from_i64(v: i64) -> Result<isize, Error>

impl FromNumber for u8

fn from_u64(v: u64) -> Result<u8, Error>

fn from_i64(v: i64) -> Result<u8, Error>

impl FromNumber for u16

fn from_u64(v: u64) -> Result<u16, Error>

fn from_i64(v: i64) -> Result<u16, Error>

impl FromNumber for u32

fn from_u64(v: u64) -> Result<u32, Error>

fn from_i64(v: i64) -> Result<u32, Error>

impl FromNumber for u64

fn from_u64(v: u64) -> Result<u64, Error>

fn from_i64(v: i64) -> Result<u64, Error>

impl FromNumber for usize

fn from_u64(v: u64) -> Result<usize, Error>

fn from_i64(v: i64) -> Result<usize, Error>

impl FromNumber for NonZero<i8>

fn from_u64(v: u64) -> Result<NonZero<i8>, Error>

fn from_i64(v: i64) -> Result<NonZero<i8>, Error>

impl FromNumber for NonZero<i16>

fn from_u64(v: u64) -> Result<NonZero<i16>, Error>

fn from_i64(v: i64) -> Result<NonZero<i16>, Error>

impl FromNumber for NonZero<i32>

fn from_u64(v: u64) -> Result<NonZero<i32>, Error>

fn from_i64(v: i64) -> Result<NonZero<i32>, Error>

impl FromNumber for NonZero<i64>

fn from_u64(v: u64) -> Result<NonZero<i64>, Error>

fn from_i64(v: i64) -> Result<NonZero<i64>, Error>

impl FromNumber for NonZero<isize>

fn from_u64(v: u64) -> Result<NonZero<isize>, Error>

fn from_i64(v: i64) -> Result<NonZero<isize>, Error>

impl FromNumber for NonZero<u8>

fn from_u64(v: u64) -> Result<NonZero<u8>, Error>

fn from_i64(v: i64) -> Result<NonZero<u8>, Error>

impl FromNumber for NonZero<u16>

fn from_u64(v: u64) -> Result<NonZero<u16>, Error>

fn from_i64(v: i64) -> Result<NonZero<u16>, Error>

impl FromNumber for NonZero<u32>

fn from_u64(v: u64) -> Result<NonZero<u32>, Error>

fn from_i64(v: i64) -> Result<NonZero<u32>, Error>

impl FromNumber for NonZero<u64>

fn from_u64(v: u64) -> Result<NonZero<u64>, Error>

fn from_i64(v: i64) -> Result<NonZero<u64>, Error>

impl FromNumber for NonZero<usize>

fn from_u64(v: u64) -> Result<NonZero<usize>, Error>

fn from_i64(v: i64) -> Result<NonZero<usize>, Error>

impl<T> FromNumber for Wrapping<T>

where T: FromNumber,

fn from_u64(v: u64) -> Result<Wrapping<T>, Error>

fn from_i64(v: i64) -> Result<Wrapping<T>, Error>

Implementors