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 hash
ed 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§
Provided Methods§
1.3.0 · sourcefn hash_slice<H>(data: &[Self], state: &mut H)
fn hash_slice<H>(data: &[Self], state: &mut H)
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§
Implementors§
impl Hash for byteorder::BigEndian
impl Hash for byteorder::LittleEndian
impl Hash for Format
impl Hash for gimli::common::SectionId
impl Hash for RunTimeEndian
impl Hash for CallFrameInstruction
impl Hash for Address
impl Hash for Reference
impl Hash for LineString
impl Hash for gimli::write::loc::Location
impl Hash for gimli::write::range::Range
impl Hash for Level
impl Hash for LevelFilter
impl Hash for AddressSize
impl Hash for object::common::Architecture
impl Hash for object::common::BinaryFormat
impl Hash for ComdatKind
impl Hash for FileFlags
impl Hash for RelocationEncoding
impl Hash for RelocationKind
impl Hash for SectionFlags
impl Hash for SectionKind
impl Hash for object::common::SegmentFlags
impl Hash for SubArchitecture
impl Hash for SymbolKind
impl Hash for SymbolScope
impl Hash for object::endian::Endianness
impl Hash for ImportType
impl Hash for CompressionFormat
impl Hash for FileKind
impl Hash for ObjectKind
impl Hash for RelocationTarget
impl Hash for object::read::SymbolSection
impl Hash for Mangling
impl Hash for StandardSection
impl Hash for StandardSegment
impl Hash for object::write::SymbolSection
impl Hash for Op
impl Hash for CDataModel
impl Hash for Size
impl Hash for Aarch64Architecture
impl Hash for target_lexicon::targets::Architecture
impl Hash for ArmArchitecture
impl Hash for target_lexicon::targets::BinaryFormat
impl Hash for CustomVendor
impl Hash for Environment
impl Hash for Mips32Architecture
impl Hash for Mips64Architecture
impl Hash for OperatingSystem
impl Hash for Riscv32Architecture
impl Hash for Riscv64Architecture
impl Hash for Vendor
impl Hash for X86_32Architecture
impl Hash for CallingConvention
impl Hash for target_lexicon::triple::Endianness
impl Hash for PointerWidth
impl Hash for EngineOrModuleTypeIndex
impl Hash for EntityIndex
impl Hash for GlobalInit
impl Hash for MemoryStyle
impl Hash for TableStyle
impl Hash for Trap
impl Hash for WasmHeapType
impl Hash for WasmValType
impl Hash for ComdatSymbolKind
impl Hash for CompositeType
impl Hash for HeapType
impl Hash for StorageType
impl Hash for UnpackedIndex
impl Hash for ValType
impl Hash for ComponentNameKind<'_>
impl Hash for AnyTypeId
impl Hash for ComponentAnyTypeId
impl Hash for ComponentCoreTypeId
impl Hash for AsciiChar
impl Hash for wasmtime_environ::__core::cmp::Ordering
impl Hash for Infallible
impl Hash for IpAddr
impl Hash for Ipv6MulticastScope
impl Hash for SocketAddr
impl Hash for wasmtime_environ::__core::sync::atomic::Ordering
impl Hash for ErrorKind
impl Hash for bool
impl Hash for char
impl Hash for i8
impl Hash for i16
impl Hash for i32
impl Hash for i64
impl Hash for i128
impl Hash for isize
impl Hash for !
impl Hash for str
impl Hash for u8
impl Hash for u16
impl Hash for u32
impl Hash for u64
impl Hash for u128
impl Hash for ()
impl Hash for usize
impl Hash for DebugTypeSignature
impl Hash for DwoId
impl Hash for Encoding
impl Hash for LineEncoding
impl Hash for Register
impl Hash for DwAccess
impl Hash for DwAddr
impl Hash for DwAt
impl Hash for DwAte
impl Hash for DwCc
impl Hash for DwCfa
impl Hash for DwChildren
impl Hash for DwDefaulted
impl Hash for DwDs
impl Hash for DwDsc
impl Hash for DwEhPe
impl Hash for DwEnd
impl Hash for DwForm
impl Hash for DwId
impl Hash for DwIdx
impl Hash for DwInl
impl Hash for DwLang
impl Hash for DwLle
impl Hash for DwLnct
impl Hash for DwLne
impl Hash for DwLns
impl Hash for DwMacro
impl Hash for DwOp
impl Hash for DwOrd
impl Hash for DwRle
impl Hash for DwSect
impl Hash for DwSectV2
impl Hash for DwTag
impl Hash for DwUt
impl Hash for DwVirtuality
impl Hash for DwVis
impl Hash for gimli::endianity::BigEndian
impl Hash for gimli::endianity::LittleEndian
impl Hash for gimli::read::rnglists::Range
impl Hash for CieId
impl Hash for CommonInformationEntry
impl Hash for FileId
impl Hash for DirectoryId
impl Hash for LocationList
impl Hash for LocationListId
impl Hash for gimli::write::op::Expression
impl Hash for RangeList
impl Hash for RangeListId
impl Hash for LineStringId
impl Hash for StringId
impl Hash for UnitEntryId
impl Hash for UnitId
impl Hash for in6_addr
impl Hash for termios2
impl Hash for sem_t
impl Hash for msqid_ds
impl Hash for semid_ds
impl Hash for sigset_t
impl Hash for sysinfo
impl Hash for clone_args
impl Hash for statvfs
impl Hash for _libc_fpstate
impl Hash for _libc_fpxreg
impl Hash for _libc_xmmreg
impl Hash for flock64
impl Hash for flock
impl Hash for ipc_perm
impl Hash for mcontext_t
impl Hash for pthread_attr_t
impl Hash for ptrace_rseq_configuration
impl Hash for shmid_ds
impl Hash for sigaction
impl Hash for siginfo_t
impl Hash for stack_t
impl Hash for stat64
impl Hash for stat
impl Hash for statfs64
impl Hash for statfs
impl Hash for statvfs64
impl Hash for ucontext_t
impl Hash for user
impl Hash for user_fpregs_struct
impl Hash for user_regs_struct
impl Hash for Elf32_Chdr
impl Hash for Elf64_Chdr
impl Hash for __c_anonymous_ptrace_syscall_info_entry
impl Hash for __c_anonymous_ptrace_syscall_info_exit
impl Hash for __c_anonymous_ptrace_syscall_info_seccomp
impl Hash for __exit_status
impl Hash for __timeval
impl Hash for aiocb
impl Hash for cmsghdr
impl Hash for glob64_t
impl Hash for iocb
impl Hash for mallinfo2
impl Hash for mallinfo
impl Hash for msghdr
impl Hash for nl_mmap_hdr
impl Hash for nl_mmap_req
impl Hash for nl_pktinfo
impl Hash for ntptimeval
impl Hash for ptrace_peeksiginfo_args
impl Hash for ptrace_syscall_info
impl Hash for regex_t
impl Hash for rtentry
impl Hash for seminfo
impl Hash for sockaddr_xdp
impl Hash for statx
impl Hash for statx_timestamp
impl Hash for termios
impl Hash for timex
impl Hash for utmpx
impl Hash for xdp_desc
impl Hash for xdp_mmap_offsets
impl Hash for xdp_mmap_offsets_v1
impl Hash for xdp_options
impl Hash for xdp_ring_offset
impl Hash for xdp_ring_offset_v1
impl Hash for xdp_statistics
impl Hash for xdp_statistics_v1
impl Hash for xdp_umem_reg
impl Hash for xdp_umem_reg_v1
impl Hash for open_how
impl Hash for Elf32_Ehdr
impl Hash for Elf32_Phdr
impl Hash for Elf32_Shdr
impl Hash for Elf32_Sym
impl Hash for Elf64_Ehdr
impl Hash for Elf64_Phdr
impl Hash for Elf64_Shdr
impl Hash for Elf64_Sym
impl Hash for __c_anonymous_ifru_map
impl Hash for __c_anonymous_sockaddr_can_j1939
impl Hash for __c_anonymous_sockaddr_can_tp
impl Hash for af_alg_iv
impl Hash for arpd_request
impl Hash for can_filter
impl Hash for cpu_set_t
impl Hash for dirent64
impl Hash for dirent
impl Hash for dl_phdr_info
impl Hash for dqblk
impl Hash for fanotify_event_metadata
impl Hash for fanotify_response
impl Hash for ff_condition_effect
impl Hash for ff_constant_effect
impl Hash for ff_effect
impl Hash for ff_envelope
impl Hash for ff_periodic_effect
impl Hash for ff_ramp_effect
impl Hash for ff_replay
impl Hash for ff_rumble_effect
impl Hash for ff_trigger
impl Hash for file_clone_range
impl Hash for fsid_t
impl Hash for genlmsghdr
impl Hash for glob_t
impl Hash for hwtstamp_config
impl Hash for if_nameindex
impl Hash for in6_ifreq
impl Hash for in6_pktinfo
impl Hash for inotify_event
impl Hash for input_absinfo
impl Hash for input_event
impl Hash for input_id
impl Hash for input_keymap_entry
impl Hash for input_mask
impl Hash for itimerspec
impl Hash for j1939_filter
impl Hash for mntent
impl Hash for mq_attr
impl Hash for msginfo
impl Hash for nlattr
impl Hash for nlmsgerr
impl Hash for nlmsghdr
impl Hash for option
impl Hash for packet_mreq
impl Hash for passwd
impl Hash for posix_spawn_file_actions_t
impl Hash for posix_spawnattr_t
impl Hash for pthread_barrier_t
impl Hash for pthread_barrierattr_t
impl Hash for pthread_cond_t
impl Hash for pthread_condattr_t
impl Hash for pthread_mutex_t
impl Hash for pthread_mutexattr_t
impl Hash for pthread_rwlock_t
impl Hash for pthread_rwlockattr_t
impl Hash for regmatch_t
impl Hash for rlimit64
impl Hash for sched_attr
impl Hash for sctp_authinfo
impl Hash for sctp_initmsg
impl Hash for sctp_nxtinfo
impl Hash for sctp_prinfo
impl Hash for sctp_rcvinfo
impl Hash for sctp_sndinfo
impl Hash for sctp_sndrcvinfo
impl Hash for seccomp_data
impl Hash for seccomp_notif
impl Hash for seccomp_notif_addfd
impl Hash for seccomp_notif_resp
impl Hash for seccomp_notif_sizes
impl Hash for sembuf
impl Hash for signalfd_siginfo
impl Hash for sock_extended_err
impl Hash for sock_filter
impl Hash for sock_fprog
impl Hash for sockaddr_alg
impl Hash for sockaddr_nl
impl Hash for sockaddr_vm
impl Hash for spwd
impl Hash for tls12_crypto_info_aes_gcm_128
impl Hash for tls12_crypto_info_aes_gcm_256
impl Hash for tls12_crypto_info_chacha20_poly1305
impl Hash for tls_crypto_info
impl Hash for ucred
impl Hash for uinput_abs_setup
impl Hash for uinput_ff_erase
impl Hash for uinput_ff_upload
impl Hash for uinput_setup
impl Hash for uinput_user_dev
impl Hash for Dl_info
impl Hash for addrinfo
impl Hash for arphdr
impl Hash for arpreq
impl Hash for arpreq_old
impl Hash for epoll_event
impl Hash for fd_set
impl Hash for ifaddrs
impl Hash for in6_rtmsg
impl Hash for in_addr
impl Hash for in_pktinfo
impl Hash for ip_mreq
impl Hash for ip_mreq_source
impl Hash for ip_mreqn
impl Hash for lconv
impl Hash for mmsghdr
impl Hash for sched_param
impl Hash for sigevent
impl Hash for sockaddr
impl Hash for sockaddr_in6
impl Hash for sockaddr_in
impl Hash for sockaddr_ll
impl Hash for sockaddr_storage
impl Hash for sockaddr_un
impl Hash for tm
impl Hash for utsname
impl Hash for group
impl Hash for hostent
impl Hash for iovec
impl Hash for ipv6_mreq
impl Hash for itimerval
impl Hash for linger
impl Hash for pollfd
impl Hash for protoent
impl Hash for rlimit
impl Hash for rusage
impl Hash for servent
impl Hash for sigval
impl Hash for timespec
impl Hash for timeval
impl Hash for tms
impl Hash for utimbuf
impl Hash for winsize
impl Hash for object::endian::BigEndian
impl Hash for object::endian::LittleEndian
impl Hash for CompressedFileRange
impl Hash for object::read::SectionIndex
impl Hash for object::read::SymbolIndex
impl Hash for object::write::elf::writer::SectionIndex
impl Hash for object::write::elf::writer::SymbolIndex
impl Hash for ComdatId
impl Hash for object::write::SectionId
impl Hash for SymbolId
impl Hash for BuildMetadata
impl Hash for Comparator
impl Hash for Prerelease
impl Hash for Version
impl Hash for VersionReq
impl Hash for DefaultToHost
impl Hash for DefaultToUnknown
impl Hash for Triple
impl Hash for DataIndex
impl Hash for DefinedFuncIndex
impl Hash for DefinedGlobalIndex
impl Hash for DefinedMemoryIndex
impl Hash for DefinedTableIndex
impl Hash for ElemIndex
impl Hash for FuncIndex
impl Hash for FuncRefIndex
impl Hash for Global
impl Hash for GlobalIndex
impl Hash for Memory
impl Hash for MemoryIndex
impl Hash for MemoryPlan
impl Hash for ModuleInternedTypeIndex
impl Hash for OwnedMemoryIndex
impl Hash for StaticModuleIndex
impl Hash for Table
impl Hash for TableIndex
impl Hash for TablePlan
impl Hash for Tag
impl Hash for TagIndex
impl Hash for Tunables
impl Hash for TypeIndex
impl Hash for WasmFuncType
impl Hash for WasmRefType
impl Hash for ComponentName
impl Hash for KebabStr
impl Hash for KebabString
impl Hash for ArrayType
impl Hash for FieldType
impl Hash for FuncType
impl Hash for GlobalType
impl Hash for Ieee32
impl Hash for Ieee64
impl Hash for MemoryType
impl Hash for PackedIndex
impl Hash for RecGroup
impl Hash for RefType
impl Hash for wasmtime_environ::wasmparser::SegmentFlags
impl Hash for StructType
impl Hash for SubType
impl Hash for wasmtime_environ::wasmparser::SymbolFlags
impl Hash for TableType
impl Hash for V128
impl Hash for WasmFeatures
impl Hash for AliasableResourceId
impl Hash for ComponentCoreInstanceTypeId
impl Hash for ComponentCoreModuleTypeId
impl Hash for ComponentDefinedTypeId
impl Hash for ComponentFuncTypeId
impl Hash for ComponentInstanceTypeId
impl Hash for ComponentTypeId
impl Hash for ComponentValueTypeId
impl Hash for CoreTypeId
impl Hash for RecGroupId
impl Hash for ResourceId
impl Hash for Layout
impl Hash for TypeId
impl Hash for CStr
impl Hash for Error
impl Hash for PhantomPinned
impl Hash for Ipv4Addr
impl Hash for Ipv6Addr
impl Hash for SocketAddrV4
impl Hash for SocketAddrV6
impl Hash for Alignment
impl Hash for RangeFull
impl Hash for Duration
impl Hash for CString
impl Hash for String
impl Hash for OsStr
impl Hash for OsString
impl Hash for FileType
impl Hash for UCred
impl Hash for Path
impl Hash for PathBuf
impl Hash for PrefixComponent<'_>
impl Hash for ThreadId
impl Hash for Instant
impl Hash for SystemTime
impl Hash for __c_anonymous_ptrace_syscall_info_data
impl<'a> Hash for FlagValue<'a>
impl<'a> Hash for Component<'a>
impl<'a> Hash for Prefix<'a>
impl<'a> Hash for Metadata<'a>
impl<'a> Hash for MetadataBuilder<'a>
impl<'a> Hash for DependencyName<'a>
impl<'a> Hash for HashName<'a>
impl<'a> Hash for InterfaceName<'a>
impl<'a> Hash for ResourceFunc<'a>
impl<'a> Hash for UrlName<'a>
impl<'a> Hash for BinaryReader<'a>
impl<'a> Hash for wasmtime_environ::__core::panic::Location<'a>
impl<'data> Hash for CompressedData<'data>
impl<'data> Hash for ObjectMapEntry<'data>
impl<'data> Hash for SymbolMapName<'data>
impl<'input, Endian> Hash for EndianSlice<'input, Endian>
impl<B> Hash for Cow<'_, B>
impl<B, C> Hash for ControlFlow<B, C>
impl<Dyn> Hash for DynMetadata<Dyn>where
Dyn: ?Sized,
impl<E> Hash for object::endian::aligned::I16<E>
impl<E> Hash for object::endian::aligned::I32<E>
impl<E> Hash for object::endian::aligned::I64<E>
impl<E> Hash for object::endian::aligned::U16<E>
impl<E> Hash for object::endian::aligned::U32<E>
impl<E> Hash for object::endian::aligned::U64<E>
impl<E> Hash for I16Bytes<E>
impl<E> Hash for I32Bytes<E>
impl<E> Hash for I64Bytes<E>
impl<E> Hash for U16Bytes<E>
impl<E> Hash for U32Bytes<E>
impl<E> Hash for U64Bytes<E>
impl<F> Hash for Fwhere
F: FnPtr,
impl<Idx> Hash for wasmtime_environ::__core::range::legacy::Range<Idx>where
Idx: Hash,
impl<Idx> Hash for wasmtime_environ::__core::range::legacy::RangeFrom<Idx>where
Idx: Hash,
impl<Idx> Hash for wasmtime_environ::__core::range::legacy::RangeInclusive<Idx>where
Idx: Hash,
impl<Idx> Hash for wasmtime_environ::__core::range::Range<Idx>where
Idx: Hash,
impl<Idx> Hash for wasmtime_environ::__core::range::RangeFrom<Idx>where
Idx: Hash,
impl<Idx> Hash for wasmtime_environ::__core::range::RangeInclusive<Idx>where
Idx: Hash,
impl<Idx> Hash for RangeTo<Idx>where
Idx: Hash,
impl<Idx> Hash for RangeToInclusive<Idx>where
Idx: Hash,
impl<K, V> Hash for indexmap::map::slice::Slice<K, V>
impl<K, V> Hash for PrimaryMap<K, V>
impl<K, V> Hash for SecondaryMap<K, V>
impl<K, V, A> Hash for BTreeMap<K, V, A>
impl<O> Hash for F32<O>where
O: Hash,
impl<O> Hash for F64<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::I16<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::I32<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::I64<O>where
O: Hash,
impl<O> Hash for I128<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::U16<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::U32<O>where
O: Hash,
impl<O> Hash for zerocopy::byteorder::U64<O>where
O: Hash,
impl<O> Hash for U128<O>where
O: Hash,
impl<Ptr> Hash for Pin<Ptr>
impl<R> Hash for LocationListEntry<R>
impl<R> Hash for gimli::read::op::Expression<R>
impl<Section, Symbol> Hash for object::common::SymbolFlags<Section, Symbol>
impl<T> Hash for UnitSectionOffset<T>where
T: Hash,
impl<T> Hash for Option<T>where
T: Hash,
impl<T> Hash for Bound<T>where
T: Hash,
impl<T> Hash for Poll<T>where
T: Hash,
impl<T> Hash for *const Twhere
T: ?Sized,
impl<T> Hash for *mut Twhere
T: ?Sized,
impl<T> Hash for &T
impl<T> Hash for &mut T
impl<T> Hash for [T]where
T: Hash,
impl<T> Hash for (T₁, T₂, …, Tₙ)
This trait is implemented for tuples up to twelve items long.
impl<T> Hash for DebugAbbrevOffset<T>where
T: Hash,
impl<T> Hash for DebugFrameOffset<T>where
T: Hash,
impl<T> Hash for DebugInfoOffset<T>where
T: Hash,
impl<T> Hash for DebugMacinfoOffset<T>where
T: Hash,
impl<T> Hash for DebugMacroOffset<T>where
T: Hash,
impl<T> Hash for DebugTypesOffset<T>where
T: Hash,
impl<T> Hash for EhFrameOffset<T>where
T: Hash,
impl<T> Hash for LocationListsOffset<T>where
T: Hash,
impl<T> Hash for RangeListsOffset<T>where
T: Hash,
impl<T> Hash for RawRangeListsOffset<T>where
T: Hash,
impl<T> Hash for UnitOffset<T>where
T: Hash,
impl<T> Hash for indexmap::set::slice::Slice<T>where
T: Hash,
impl<T> Hash for Unalign<T>
impl<T> Hash for PackedOption<T>where
T: Hash + ReservedValue,
impl<T> Hash for EntityList<T>
impl<T> Hash for ListPool<T>
impl<T> Hash for Reverse<T>where
T: Hash,
impl<T> Hash for PhantomData<T>where
T: ?Sized,
impl<T> Hash for Discriminant<T>
impl<T> Hash for ManuallyDrop<T>
impl<T> Hash for NonZero<T>where
T: ZeroablePrimitive + Hash,
impl<T> Hash for Saturating<T>where
T: Hash,
impl<T> Hash for Wrapping<T>where
T: Hash,
impl<T> Hash for NonNull<T>where
T: ?Sized,
impl<T, A> Hash for allocator_api2::stable::boxed::Box<T, A>
impl<T, A> Hash for allocator_api2::stable::vec::Vec<T, A>
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));
impl<T, A> Hash for alloc::boxed::Box<T, A>
impl<T, A> Hash for BTreeSet<T, A>
impl<T, A> Hash for LinkedList<T, A>
impl<T, A> Hash for VecDeque<T, A>
impl<T, A> Hash for Rc<T, A>
impl<T, A> Hash for Arc<T, A>
impl<T, A> Hash for alloc::vec::Vec<T, A>
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));
impl<T, E> Hash for Result<T, E>
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));