Struct rustc_data_structures::stable_hasher::StableHasher

pub struct StableHasher<W> { /* fields omitted */ }

When hashing something that ends up affecting properties like symbol names, we want these symbol names to be calculated independently of other factors like what architecture you're compiling from.

To that end we always convert integers to little-endian format before hashing and the architecture dependent isize and usize types are extended to 64 bits if needed.

Methods

impl<W: StableHasherResult> StableHasher<W>

pub fn new() -> Self

pub fn finish(self) -> W

impl<W> StableHasher<W>

pub fn finalize(self) -> (u64, u64)

pub fn bytes_hashed(&self) -> u64

Trait Implementations

impl<W: StableHasherResult> Debug for StableHasher<W>

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

Formats the value using the given formatter.

impl<W> Hasher for StableHasher<W>

fn finish(&self) -> u64

Returns the hash value for the values written so far.

fn write(&mut self, bytes: &[u8])

Writes some data into this Hasher.

fn write_u8(&mut self, i: u8)

Writes a single u8 into this hasher.

fn write_u16(&mut self, i: u16)

Writes a single u16 into this hasher.

fn write_u32(&mut self, i: u32)

Writes a single u32 into this hasher.

fn write_u64(&mut self, i: u64)

Writes a single u64 into this hasher.

fn write_u128(&mut self, i: u128)

Writes a single u128 into this hasher.

fn write_usize(&mut self, i: usize)

Writes a single usize into this hasher.

fn write_i8(&mut self, i: i8)

Writes a single i8 into this hasher.

fn write_i16(&mut self, i: i16)

Writes a single i16 into this hasher.

fn write_i32(&mut self, i: i32)

Writes a single i32 into this hasher.

fn write_i64(&mut self, i: i64)

Writes a single i64 into this hasher.

fn write_i128(&mut self, i: i128)

Writes a single i128 into this hasher.

fn write_isize(&mut self, i: isize)

Writes a single isize into this hasher.