Trait wasmtime_environ::__core::hash::Hash

1.0.0 · source ·
pub trait Hash {
    // Required method
    fn hash<H>(&self, state: &mut H)
       where H: Hasher;

    // Provided method
    fn hash_slice<H>(data: &[Self], state: &mut H)
       where H: Hasher,
             Self: Sized { ... }
}
Expand description

A hashable type.

Types implementing Hash are able to be hashed with an instance of Hasher.

§Implementing Hash

You can derive Hash with #[derive(Hash)] if all fields implement Hash. The resulting hash will be the combination of the values from calling hash on each field.

#[derive(Hash)]
struct Rustacean {
    name: String,
    country: String,
}

If you need more control over how a value is hashed, you can of course implement the Hash trait yourself:

use std::hash::{Hash, Hasher};

struct Person {
    id: u32,
    name: String,
    phone: u64,
}

impl Hash for Person {
    fn hash<H: Hasher>(&self, state: &mut H) {
        self.id.hash(state);
        self.phone.hash(state);
    }
}

§Hash and Eq

When implementing both Hash and Eq, it is important that the following property holds:

k1 == k2 -> hash(k1) == hash(k2)

In other words, if two keys are equal, their hashes must also be equal. HashMap and HashSet both rely on this behavior.

Thankfully, you won’t need to worry about upholding this property when deriving both Eq and Hash with #[derive(PartialEq, Eq, Hash)].

Violating this property is a logic error. The behavior resulting from a logic error is not specified, but users of the trait must ensure that such logic errors do not result in undefined behavior. This means that unsafe code must not rely on the correctness of these methods.

§Prefix collisions

Implementations of hash should ensure that the data they pass to the Hasher are prefix-free. That is, values which are not equal should cause two different sequences of values to be written, and neither of the two sequences should be a prefix of the other.

For example, the standard implementation of Hash for &str passes an extra 0xFF byte to the Hasher so that the values ("ab", "c") and ("a", "bc") hash differently.

§Portability

Due to differences in endianness and type sizes, data fed by Hash to a Hasher should not be considered portable across platforms. Additionally the data passed by most standard library types should not be considered stable between compiler versions.

This means tests shouldn’t probe hard-coded hash values or data fed to a Hasher and instead should check consistency with Eq.

Serialization formats intended to be portable between platforms or compiler versions should either avoid encoding hashes or only rely on Hash and Hasher implementations that provide additional guarantees.

Required Methods§

1.0.0 · source

fn hash<H>(&self, state: &mut H)
where H: Hasher,

Feeds this value into the given Hasher.

§Examples
use std::hash::{DefaultHasher, Hash, Hasher};

let mut hasher = DefaultHasher::new();
7920.hash(&mut hasher);
println!("Hash is {:x}!", hasher.finish());

Provided Methods§

1.3.0 · source

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

This method is meant as a convenience, but its implementation is also explicitly left unspecified. It isn’t guaranteed to be equivalent to repeated calls of hash and implementations of Hash should keep that in mind and call hash themselves if the slice isn’t treated as a whole unit in the PartialEq implementation.

For example, a VecDeque implementation might naïvely call as_slices and then hash_slice on each slice, but this is wrong since the two slices can change with a call to make_contiguous without affecting the PartialEq result. Since these slices aren’t treated as singular units, and instead part of a larger deque, this method cannot be used.

§Examples
use std::hash::{DefaultHasher, Hash, Hasher};

let mut hasher = DefaultHasher::new();
let numbers = [6, 28, 496, 8128];
Hash::hash_slice(&numbers, &mut hasher);
println!("Hash is {:x}!", hasher.finish());

Object Safety§

This trait is not object safe.

Implementors§

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impl Hash for byteorder::BigEndian

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impl Hash for byteorder::LittleEndian

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impl Hash for Format

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impl Hash for gimli::common::SectionId

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impl Hash for RunTimeEndian

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impl Hash for CallFrameInstruction

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impl Hash for Address

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impl Hash for Reference

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impl Hash for LineString

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impl Hash for gimli::write::loc::Location

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impl Hash for gimli::write::range::Range

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impl Hash for Level

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impl Hash for LevelFilter

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impl Hash for AddressSize

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impl Hash for object::common::Architecture

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impl Hash for object::common::BinaryFormat

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impl Hash for ComdatKind

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impl Hash for FileFlags

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impl Hash for RelocationEncoding

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impl Hash for RelocationFlags

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impl Hash for RelocationKind

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impl Hash for SectionFlags

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impl Hash for SectionKind

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impl Hash for object::common::SegmentFlags

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impl Hash for SubArchitecture

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impl Hash for SymbolKind

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impl Hash for SymbolScope

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impl Hash for object::endian::Endianness

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impl Hash for ImportType

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impl Hash for CompressionFormat

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impl Hash for FileKind

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impl Hash for ObjectKind

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impl Hash for RelocationTarget

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impl Hash for object::read::SymbolSection

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impl Hash for Mangling

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impl Hash for StandardSection

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impl Hash for StandardSegment

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impl Hash for object::write::SymbolSection

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impl Hash for Op

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impl Hash for CDataModel

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impl Hash for Size

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impl Hash for Aarch64Architecture

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impl Hash for target_lexicon::targets::Architecture

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impl Hash for ArmArchitecture

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impl Hash for target_lexicon::targets::BinaryFormat

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impl Hash for CustomVendor

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impl Hash for Environment

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impl Hash for Mips32Architecture

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impl Hash for Mips64Architecture

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impl Hash for OperatingSystem

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impl Hash for Riscv32Architecture

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impl Hash for Riscv64Architecture

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impl Hash for Vendor

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impl Hash for X86_32Architecture

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impl Hash for CallingConvention

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impl Hash for target_lexicon::triple::Endianness

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impl Hash for PointerWidth

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impl Hash for ComponentTypeRef

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impl Hash for TypeBounds

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impl Hash for ComponentValType

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impl Hash for PrimitiveValType

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impl Hash for wasm_encoder::core::types::AbstractHeapType

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impl Hash for wasm_encoder::core::types::HeapType

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impl Hash for wasm_encoder::core::types::StorageType

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impl Hash for wasm_encoder::core::types::ValType

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impl Hash for DiscriminantSize

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impl Hash for wasmtime_environ::component::dfg::CoreDef

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impl Hash for Trampoline

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impl Hash for wasmtime_environ::component::CoreDef

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impl Hash for FixedEncoding

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impl Hash for InterfaceType

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impl Hash for StringEncoding

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impl Hash for Transcode

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impl Hash for ConstOp

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impl Hash for EngineOrModuleTypeIndex

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impl Hash for EntityIndex

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impl Hash for MemoryStyle

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impl Hash for TableStyle

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impl Hash for Trap

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impl Hash for WasmCompositeType

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impl Hash for WasmHeapType

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impl Hash for WasmStorageType

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impl Hash for WasmValType

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impl Hash for LibCall

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impl Hash for wasmtime_environ::wasmparser::AbstractHeapType

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impl Hash for ComdatSymbolKind

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impl Hash for CompositeInnerType

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impl Hash for wasmtime_environ::wasmparser::HeapType

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impl Hash for wasmtime_environ::wasmparser::Ordering

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impl Hash for RelocAddendKind

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impl Hash for RelocationType

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impl Hash for wasmtime_environ::wasmparser::StorageType

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impl Hash for UnpackedIndex

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impl Hash for wasmtime_environ::wasmparser::ValType

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impl Hash for ComponentNameKind<'_>

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impl Hash for AnyTypeId

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impl Hash for ComponentAnyTypeId

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impl Hash for ComponentCoreTypeId

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impl Hash for AsciiChar

1.0.0 · source§

impl Hash for wasmtime_environ::__core::cmp::Ordering

1.44.0 · source§

impl Hash for Infallible

1.7.0 · source§

impl Hash for IpAddr

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impl Hash for Ipv6MulticastScope

1.0.0 · source§

impl Hash for SocketAddr

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impl Hash for wasmtime_environ::__core::sync::atomic::Ordering

1.0.0 · source§

impl Hash for ErrorKind

1.0.0 · source§

impl Hash for bool

1.0.0 · source§

impl Hash for char

1.0.0 · source§

impl Hash for i8

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impl Hash for i16

1.0.0 · source§

impl Hash for i32

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impl Hash for i64

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impl Hash for i128

1.0.0 · source§

impl Hash for isize

1.29.0 · source§

impl Hash for !

1.0.0 · source§

impl Hash for str

1.0.0 · source§

impl Hash for u8

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impl Hash for u16

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impl Hash for u32

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impl Hash for u64

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impl Hash for u128

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impl Hash for ()

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impl Hash for usize

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impl Hash for DebugTypeSignature

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impl Hash for DwoId

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impl Hash for Encoding

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impl Hash for LineEncoding

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impl Hash for Register

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impl Hash for DwAccess

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impl Hash for DwAddr

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impl Hash for DwAt

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impl Hash for DwAte

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impl Hash for DwCc

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impl Hash for DwCfa

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impl Hash for DwChildren

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impl Hash for DwDefaulted

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impl Hash for DwDs

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impl Hash for DwDsc

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impl Hash for DwEhPe

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impl Hash for DwEnd

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impl Hash for DwForm

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impl Hash for DwId

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impl Hash for DwIdx

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impl Hash for DwInl

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impl Hash for DwLang

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impl Hash for DwLle

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impl Hash for DwLnct

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impl Hash for DwLne

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impl Hash for DwLns

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impl Hash for DwMacro

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impl Hash for DwOp

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impl Hash for DwOrd

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impl Hash for DwRle

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impl Hash for DwSect

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impl Hash for DwSectV2

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impl Hash for DwTag

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impl Hash for DwUt

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impl Hash for DwVirtuality

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impl Hash for DwVis

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impl Hash for gimli::endianity::BigEndian

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impl Hash for gimli::endianity::LittleEndian

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impl Hash for gimli::read::rnglists::Range

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impl Hash for CieId

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impl Hash for CommonInformationEntry

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impl Hash for FileId

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impl Hash for DirectoryId

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impl Hash for LocationList

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impl Hash for LocationListId

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impl Hash for gimli::write::op::Expression

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impl Hash for RangeList

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impl Hash for RangeListId

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impl Hash for LineStringId

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impl Hash for StringId

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impl Hash for UnitEntryId

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impl Hash for UnitId

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impl Hash for object::endian::BigEndian

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impl Hash for object::endian::LittleEndian

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impl Hash for CompressedFileRange

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impl Hash for object::read::SectionIndex

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impl Hash for object::read::SymbolIndex

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impl Hash for object::write::elf::writer::SectionIndex

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impl Hash for object::write::elf::writer::SymbolIndex

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impl Hash for ComdatId

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impl Hash for object::write::SectionId

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impl Hash for SymbolId

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impl Hash for BuildMetadata

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impl Hash for Comparator

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impl Hash for Prerelease

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impl Hash for Version

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impl Hash for VersionReq

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impl Hash for DefaultToHost

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impl Hash for DefaultToUnknown

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impl Hash for Triple

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impl Hash for wasm_encoder::core::globals::GlobalType

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impl Hash for wasm_encoder::core::memories::MemoryType

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impl Hash for wasm_encoder::core::tables::TableType

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impl Hash for wasm_encoder::core::types::ArrayType

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impl Hash for wasm_encoder::core::types::FieldType

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impl Hash for wasm_encoder::core::types::FuncType

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impl Hash for wasm_encoder::core::types::RefType

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impl Hash for wasm_encoder::core::types::StructType

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impl Hash for AdapterId

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impl Hash for AdapterModuleId

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impl Hash for CanonicalOptions

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impl Hash for InstanceId

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impl Hash for MemoryId

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impl Hash for PostReturnId

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impl Hash for ReallocId

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impl Hash for Adapter

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impl Hash for AdapterOptions

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impl Hash for CanonicalAbiInfo

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impl Hash for ComponentFuncIndex

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impl Hash for ComponentIndex

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impl Hash for ComponentInstanceIndex

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impl Hash for ComponentTypeIndex

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impl Hash for ComponentUpvarIndex

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impl Hash for DefinedResourceIndex

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impl Hash for ExportIndex

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impl Hash for ImportIndex

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impl Hash for LoweredIndex

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impl Hash for ModuleIndex

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impl Hash for ModuleInstanceIndex

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impl Hash for ModuleUpvarIndex

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impl Hash for RecordField

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impl Hash for ResourceIndex

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impl Hash for RuntimeComponentInstanceIndex

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impl Hash for RuntimeImportIndex

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impl Hash for RuntimeInstanceIndex

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impl Hash for RuntimeMemoryIndex

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impl Hash for RuntimePostReturnIndex

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impl Hash for RuntimeReallocIndex

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impl Hash for StaticComponentIndex

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impl Hash for TrampolineIndex

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impl Hash for TypeComponentIndex

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impl Hash for TypeComponentInstanceIndex

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impl Hash for TypeEnum

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impl Hash for TypeEnumIndex

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impl Hash for TypeFlags

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impl Hash for TypeFlagsIndex

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impl Hash for TypeFunc

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impl Hash for TypeFuncIndex

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impl Hash for TypeList

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impl Hash for TypeListIndex

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impl Hash for TypeModuleIndex

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impl Hash for TypeOption

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impl Hash for TypeOptionIndex

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impl Hash for TypeRecord

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impl Hash for TypeRecordIndex

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impl Hash for TypeResourceTable

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impl Hash for TypeResourceTableIndex

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impl Hash for TypeResult

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impl Hash for TypeResultIndex

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impl Hash for TypeTuple

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impl Hash for TypeTupleIndex

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impl Hash for TypeVariant

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impl Hash for TypeVariantIndex

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impl Hash for VariantInfo

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impl Hash for String

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impl Hash for BuiltinFunctionIndex

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impl Hash for ConstExpr

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impl Hash for DataIndex

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impl Hash for DefinedFuncIndex

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impl Hash for DefinedGlobalIndex

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impl Hash for DefinedMemoryIndex

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impl Hash for DefinedTableIndex

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impl Hash for ElemIndex

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impl Hash for EngineInternedRecGroupIndex

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impl Hash for FuncIndex

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impl Hash for FuncRefIndex

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impl Hash for Global

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impl Hash for GlobalIndex

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impl Hash for Memory

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impl Hash for MemoryIndex

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impl Hash for MemoryPlan

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impl Hash for ModuleInternedRecGroupIndex

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impl Hash for ModuleInternedTypeIndex

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impl Hash for OwnedMemoryIndex

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impl Hash for RecGroupRelativeTypeIndex

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impl Hash for StaticModuleIndex

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impl Hash for Table

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impl Hash for TableIndex

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impl Hash for TablePlan

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impl Hash for Tag

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impl Hash for TagIndex

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impl Hash for Tunables

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impl Hash for TypeIndex

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impl Hash for VMSharedTypeIndex

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impl Hash for WasmArrayType

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impl Hash for WasmFieldType

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impl Hash for WasmFuncType

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impl Hash for WasmRecGroup

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impl Hash for WasmRefType

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impl Hash for WasmStructType

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impl Hash for WasmSubType

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impl Hash for ComponentName

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impl Hash for KebabStr

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impl Hash for KebabString

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impl Hash for wasmtime_environ::wasmparser::ArrayType

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impl Hash for CompositeType

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impl Hash for wasmtime_environ::wasmparser::FieldType

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impl Hash for wasmtime_environ::wasmparser::FuncType

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impl Hash for wasmtime_environ::wasmparser::GlobalType

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impl Hash for Ieee32

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impl Hash for Ieee64

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impl Hash for wasmtime_environ::wasmparser::MemoryType

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impl Hash for PackedIndex

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impl Hash for RecGroup

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impl Hash for wasmtime_environ::wasmparser::RefType

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impl Hash for RelocationEntry

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impl Hash for wasmtime_environ::wasmparser::SegmentFlags

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impl Hash for wasmtime_environ::wasmparser::StructType

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impl Hash for SubType

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impl Hash for wasmtime_environ::wasmparser::SymbolFlags

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impl Hash for wasmtime_environ::wasmparser::TableType

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impl Hash for V128

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impl Hash for ValidatorId

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impl Hash for WasmFeatures

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impl Hash for AliasableResourceId

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impl Hash for ComponentCoreInstanceTypeId

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impl Hash for ComponentCoreModuleTypeId

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impl Hash for ComponentDefinedTypeId

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impl Hash for ComponentFuncTypeId

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impl Hash for ComponentInstanceTypeId

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impl Hash for ComponentTypeId

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impl Hash for ComponentValueTypeId

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impl Hash for CoreTypeId

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impl Hash for RecGroupId

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impl Hash for ResourceId

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impl Hash for Layout

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impl Hash for TypeId

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impl Hash for CStr

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impl Hash for Error

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impl Hash for PhantomPinned

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impl Hash for Ipv4Addr

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impl Hash for Ipv6Addr

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impl Hash for SocketAddrV4

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impl Hash for SocketAddrV6

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impl Hash for Alignment

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impl Hash for RangeFull

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impl Hash for Duration

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impl Hash for CString

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impl Hash for OsStr

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impl Hash for OsString

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impl Hash for FileType

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impl Hash for UCred

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impl Hash for Path

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impl Hash for PathBuf

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impl Hash for PrefixComponent<'_>

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impl Hash for ThreadId

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impl Hash for Instant

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impl Hash for SystemTime

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impl<'a> Hash for FlagValue<'a>

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impl<'a> Hash for Component<'a>

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impl<'a> Hash for Prefix<'a>

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impl<'a> Hash for Metadata<'a>

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impl<'a> Hash for MetadataBuilder<'a>

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impl<'a> Hash for DependencyName<'a>

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impl<'a> Hash for HashName<'a>

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impl<'a> Hash for InterfaceName<'a>

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impl<'a> Hash for ResourceFunc<'a>

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impl<'a> Hash for UrlName<'a>

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impl<'a> Hash for BinaryReader<'a>

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impl<'a> Hash for wasmtime_environ::__core::panic::Location<'a>

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impl<'data> Hash for CompressedData<'data>

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impl<'data> Hash for ObjectMapEntry<'data>

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impl<'data> Hash for ObjectMapFile<'data>

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impl<'data> Hash for SymbolMapName<'data>

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impl<'input, Endian> Hash for EndianSlice<'input, Endian>
where Endian: Hash + Endianity,

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impl<A> Hash for SmallVec<A>
where A: Array, <A as Array>::Item: Hash,

1.0.0 · source§

impl<B> Hash for Cow<'_, B>
where B: Hash + ToOwned + ?Sized,

1.55.0 · source§

impl<B, C> Hash for ControlFlow<B, C>
where B: Hash, C: Hash,

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impl<Dyn> Hash for DynMetadata<Dyn>
where Dyn: ?Sized,

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impl<E> Hash for object::endian::aligned::I16<E>
where E: Hash + Endian,

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impl<E> Hash for object::endian::aligned::I32<E>
where E: Hash + Endian,

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impl<E> Hash for object::endian::aligned::I64<E>
where E: Hash + Endian,

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impl<E> Hash for object::endian::aligned::U16<E>
where E: Hash + Endian,

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impl<E> Hash for object::endian::aligned::U32<E>
where E: Hash + Endian,

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impl<E> Hash for object::endian::aligned::U64<E>
where E: Hash + Endian,

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impl<E> Hash for I16Bytes<E>
where E: Hash + Endian,

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impl<E> Hash for I32Bytes<E>
where E: Hash + Endian,

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impl<E> Hash for I64Bytes<E>
where E: Hash + Endian,

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impl<E> Hash for U16Bytes<E>
where E: Hash + Endian,

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impl<E> Hash for U32Bytes<E>
where E: Hash + Endian,

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impl<E> Hash for U64Bytes<E>
where E: Hash + Endian,

1.4.0 · source§

impl<F> Hash for F
where F: FnPtr,

1.0.0 · source§

impl<Idx> Hash for wasmtime_environ::__core::range::legacy::Range<Idx>
where Idx: Hash,

1.0.0 · source§

impl<Idx> Hash for wasmtime_environ::__core::range::legacy::RangeFrom<Idx>
where Idx: Hash,

1.26.0 · source§

impl<Idx> Hash for wasmtime_environ::__core::range::legacy::RangeInclusive<Idx>
where Idx: Hash,

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impl<Idx> Hash for wasmtime_environ::__core::range::Range<Idx>
where Idx: Hash,

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impl<Idx> Hash for wasmtime_environ::__core::range::RangeFrom<Idx>
where Idx: Hash,

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impl<Idx> Hash for wasmtime_environ::__core::range::RangeInclusive<Idx>
where Idx: Hash,

1.0.0 · source§

impl<Idx> Hash for RangeTo<Idx>
where Idx: Hash,

1.26.0 · source§

impl<Idx> Hash for RangeToInclusive<Idx>
where Idx: Hash,

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impl<K, V> Hash for indexmap::map::slice::Slice<K, V>
where K: Hash, V: Hash,

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impl<K, V> Hash for PrimaryMap<K, V>
where K: Hash + EntityRef, V: Hash,

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impl<K, V> Hash for SecondaryMap<K, V>
where K: Hash + EntityRef, V: Hash + Clone,

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impl<K, V, A> Hash for BTreeMap<K, V, A>
where K: Hash, V: Hash, A: Allocator + Clone,

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impl<O> Hash for F32<O>
where O: Hash,

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impl<O> Hash for F64<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::I16<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::I32<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::I64<O>
where O: Hash,

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impl<O> Hash for I128<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::U16<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::U32<O>
where O: Hash,

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impl<O> Hash for zerocopy::byteorder::U64<O>
where O: Hash,

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impl<O> Hash for U128<O>
where O: Hash,

1.41.0 · source§

impl<Ptr> Hash for Pin<Ptr>
where Ptr: Deref, <Ptr as Deref>::Target: Hash,

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impl<R> Hash for LocationListEntry<R>
where R: Hash + Reader,

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impl<R> Hash for gimli::read::op::Expression<R>
where R: Hash + Reader,

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impl<Section, Symbol> Hash for object::common::SymbolFlags<Section, Symbol>
where Section: Hash, Symbol: Hash,

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impl<T> Hash for UnitSectionOffset<T>
where T: Hash,

1.0.0 · source§

impl<T> Hash for Option<T>
where T: Hash,

1.17.0 · source§

impl<T> Hash for Bound<T>
where T: Hash,

1.36.0 · source§

impl<T> Hash for Poll<T>
where T: Hash,

1.0.0 · source§

impl<T> Hash for *const T
where T: ?Sized,

1.0.0 · source§

impl<T> Hash for *mut T
where T: ?Sized,

1.0.0 · source§

impl<T> Hash for &T
where T: Hash + ?Sized,

1.0.0 · source§

impl<T> Hash for &mut T
where T: Hash + ?Sized,

1.0.0 · source§

impl<T> Hash for [T]
where T: Hash,

1.0.0 · source§

impl<T> Hash for (T₁, T₂, …, Tₙ)
where T: Hash + ?Sized,

This trait is implemented for tuples up to twelve items long.

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impl<T> Hash for DebugAbbrevOffset<T>
where T: Hash,

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impl<T> Hash for DebugFrameOffset<T>
where T: Hash,

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impl<T> Hash for DebugInfoOffset<T>
where T: Hash,

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impl<T> Hash for DebugMacinfoOffset<T>
where T: Hash,

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impl<T> Hash for DebugMacroOffset<T>
where T: Hash,

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impl<T> Hash for DebugTypesOffset<T>
where T: Hash,

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impl<T> Hash for EhFrameOffset<T>
where T: Hash,

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impl<T> Hash for LocationListsOffset<T>
where T: Hash,

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impl<T> Hash for RangeListsOffset<T>
where T: Hash,

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impl<T> Hash for RawRangeListsOffset<T>
where T: Hash,

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impl<T> Hash for UnitOffset<T>
where T: Hash,

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impl<T> Hash for indexmap::set::slice::Slice<T>
where T: Hash,

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impl<T> Hash for Unalign<T>
where T: Unaligned + Hash,

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impl<T> Hash for PackedOption<T>
where T: Hash + ReservedValue,

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impl<T> Hash for EntityList<T>

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impl<T> Hash for ListPool<T>

1.19.0 · source§

impl<T> Hash for Reverse<T>
where T: Hash,

1.0.0 · source§

impl<T> Hash for PhantomData<T>
where T: ?Sized,

1.21.0 · source§

impl<T> Hash for Discriminant<T>

1.20.0 · source§

impl<T> Hash for ManuallyDrop<T>
where T: Hash + ?Sized,

1.28.0 · source§

impl<T> Hash for NonZero<T>

1.74.0 · source§

impl<T> Hash for Saturating<T>
where T: Hash,

1.0.0 · source§

impl<T> Hash for Wrapping<T>
where T: Hash,

1.25.0 · source§

impl<T> Hash for NonNull<T>
where T: ?Sized,

1.0.0 · source§

impl<T, A> Hash for wasmtime_environ::prelude::Box<T, A>
where T: Hash + ?Sized, A: Allocator,

1.0.0 · source§

impl<T, A> Hash for wasmtime_environ::prelude::Vec<T, A>
where T: Hash, A: Allocator,

The hash of a vector is the same as that of the corresponding slice, as required by the core::borrow::Borrow implementation.

use std::hash::BuildHasher;

let b = std::hash::RandomState::new();
let v: Vec<u8> = vec![0xa8, 0x3c, 0x09];
let s: &[u8] = &[0xa8, 0x3c, 0x09];
assert_eq!(b.hash_one(v), b.hash_one(s));
1.0.0 · source§

impl<T, A> Hash for BTreeSet<T, A>
where T: Hash, A: Allocator + Clone,

1.0.0 · source§

impl<T, A> Hash for LinkedList<T, A>
where T: Hash, A: Allocator,

1.0.0 · source§

impl<T, A> Hash for VecDeque<T, A>
where T: Hash, A: Allocator,

1.0.0 · source§

impl<T, A> Hash for Rc<T, A>
where T: Hash + ?Sized, A: Allocator,

1.0.0 · source§

impl<T, A> Hash for Arc<T, A>
where T: Hash + ?Sized, A: Allocator,

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impl<T, A> Hash for Box<T, A>
where T: Hash + ?Sized, A: Allocator,

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impl<T, A> Hash for Vec<T, A>
where T: Hash, A: Allocator,

The hash of a vector is the same as that of the corresponding slice, as required by the core::borrow::Borrow implementation.

#![feature(build_hasher_simple_hash_one)]
use std::hash::BuildHasher;

let b = std::collections::hash_map::RandomState::new();
let v: Vec<u8> = vec![0xa8, 0x3c, 0x09];
let s: &[u8] = &[0xa8, 0x3c, 0x09];
assert_eq!(b.hash_one(v), b.hash_one(s));
1.0.0 · source§

impl<T, E> Hash for Result<T, E>
where T: Hash, E: Hash,

1.0.0 · source§

impl<T, const N: usize> Hash for [T; N]
where T: Hash,

The hash of an array is the same as that of the corresponding slice, as required by the Borrow implementation.

use std::hash::BuildHasher;

let b = std::hash::RandomState::new();
let a: [u8; 3] = [0xa8, 0x3c, 0x09];
let s: &[u8] = &[0xa8, 0x3c, 0x09];
assert_eq!(b.hash_one(a), b.hash_one(s));
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impl<T, const N: usize> Hash for Simd<T, N>

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impl<T: Hash> Hash for ExportItem<T>

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impl<T: Hash> Hash for wasmtime_environ::component::dfg::CoreExport<T>

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impl<T: Hash> Hash for wasmtime_environ::component::CoreExport<T>

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impl<Y, R> Hash for CoroutineState<Y, R>
where Y: Hash, R: Hash,