Enum rustc_hir::lang_items::LangItem[−][src]

pub enum LangItem {
Show 139 variants    Bool,
    Char,
    Str,
    Array,
    Slice,
    SliceU8,
    StrAlloc,
    SliceAlloc,
    SliceU8Alloc,
    ConstPtr,
    MutPtr,
    ConstSlicePtr,
    MutSlicePtr,
    I8,
    I16,
    I32,
    I64,
    I128,
    Isize,
    U8,
    U16,
    U32,
    U64,
    U128,
    Usize,
    F32,
    F64,
    F32Runtime,
    F64Runtime,
    Sized,
    Unsize,
    StructuralPeq,
    StructuralTeq,
    Copy,
    Clone,
    Sync,
    DiscriminantKind,
    Discriminant,
    PointeeTrait,
    Metadata,
    DynMetadata,
    Freeze,
    Drop,
    CoerceUnsized,
    DispatchFromDyn,
    Add,
    Sub,
    Mul,
    Div,
    Rem,
    Neg,
    Not,
    BitXor,
    BitAnd,
    BitOr,
    Shl,
    Shr,
    AddAssign,
    SubAssign,
    MulAssign,
    DivAssign,
    RemAssign,
    BitXorAssign,
    BitAndAssign,
    BitOrAssign,
    ShlAssign,
    ShrAssign,
    Index,
    IndexMut,
    UnsafeCell,
    VaList,
    Deref,
    DerefMut,
    DerefTarget,
    Receiver,
    Fn,
    FnMut,
    FnOnce,
    FnOnceOutput,
    Future,
    GeneratorState,
    Generator,
    Unpin,
    Pin,
    PartialEq,
    PartialOrd,
    Panic,
    PanicFmt,
    PanicDisplay,
    PanicStr,
    ConstPanicFmt,
    PanicBoundsCheck,
    PanicInfo,
    PanicLocation,
    PanicImpl,
    BeginPanic,
    ExchangeMalloc,
    BoxFree,
    DropInPlace,
    Oom,
    AllocLayout,
    ConstEvalSelect,
    ConstConstEvalSelect,
    Start,
    EhPersonality,
    EhCatchTypeinfo,
    OwnedBox,
    PhantomData,
    ManuallyDrop,
    MaybeUninit,
    AlignOffset,
    Termination,
    Try,
    SliceLen,
    TryTraitFromResidual,
    TryTraitFromOutput,
    TryTraitBranch,
    PollReady,
    PollPending,
    FromGenerator,
    GetContext,
    FuturePoll,
    FromFrom,
    OptionSome,
    OptionNone,
    ResultOk,
    ResultErr,
    ControlFlowContinue,
    ControlFlowBreak,
    IntoIterIntoIter,
    IteratorNext,
    PinNewUnchecked,
    RangeFrom,
    RangeFull,
    RangeInclusiveStruct,
    RangeInclusiveNew,
    Range,
    RangeToInclusive,
    RangeTo,
}

Expand description

A representation of all the valid language items in Rust.

Variants

Bool

The bool lang item.

Char

The char lang item.

Str

The str lang item.

Array

The array lang item.

Slice

The slice lang item.

SliceU8

The slice_u8 lang item.

StrAlloc

The str_alloc lang item.

SliceAlloc

The slice_alloc lang item.

SliceU8Alloc

The slice_u8_alloc lang item.

ConstPtr

The const_ptr lang item.

MutPtr

The mut_ptr lang item.

ConstSlicePtr

The const_slice_ptr lang item.

MutSlicePtr

The mut_slice_ptr lang item.

I8

The i8 lang item.

I16

The i16 lang item.

I32

The i32 lang item.

I64

The i64 lang item.

I128

The i128 lang item.

Isize

The isize lang item.

U8

The u8 lang item.

U16

The u16 lang item.

U32

The u32 lang item.

U64

The u64 lang item.

U128

The u128 lang item.

Usize

The usize lang item.

F32

The f32 lang item.

F64

The f64 lang item.

F32Runtime

The f32_runtime lang item.

F64Runtime

The f64_runtime lang item.

Sized

The sized lang item.

Unsize

The unsize lang item.

StructuralPeq

The structural_peq lang item.

Trait injected by #[derive(PartialEq)], (i.e. “Partial EQ”).

StructuralTeq

The structural_teq lang item.

Trait injected by #[derive(Eq)], (i.e. “Total EQ”; no, I will not apologize).

Copy

The copy lang item.

Clone

The clone lang item.

Sync

The sync lang item.

DiscriminantKind

The discriminant_kind lang item.

Discriminant

The discriminant_type lang item.

The associated item of the [DiscriminantKind] trait.

PointeeTrait

The pointee_trait lang item.

Metadata

The metadata_type lang item.

DynMetadata

The dyn_metadata lang item.

Freeze

The freeze lang item.

Drop

The drop lang item.

CoerceUnsized

The coerce_unsized lang item.

DispatchFromDyn

The dispatch_from_dyn lang item.

Add

The add lang item.

Sub

The sub lang item.

Mul

The mul lang item.

Div

The div lang item.

Rem

The rem lang item.

Neg

The neg lang item.

Not

The not lang item.

BitXor

The bitxor lang item.

BitAnd

The bitand lang item.

BitOr

The bitor lang item.

Shl

The shl lang item.

Shr

The shr lang item.

AddAssign

The add_assign lang item.

SubAssign

The sub_assign lang item.

MulAssign

The mul_assign lang item.

DivAssign

The div_assign lang item.

RemAssign

The rem_assign lang item.

BitXorAssign

The bitxor_assign lang item.

BitAndAssign

The bitand_assign lang item.

BitOrAssign

The bitor_assign lang item.

ShlAssign

The shl_assign lang item.

ShrAssign

The shr_assign lang item.

Index

The index lang item.

IndexMut

The index_mut lang item.

UnsafeCell

The unsafe_cell lang item.

VaList

The va_list lang item.

Deref

The deref lang item.

DerefMut

The deref_mut lang item.

DerefTarget

The deref_target lang item.

Receiver

The receiver lang item.

Fn

The Fn lang item.

FnMut

The fn_mut lang item.

FnOnce

The fn_once lang item.

FnOnceOutput

The fn_once_output lang item.

Future

The future_trait lang item.

GeneratorState

The generator_state lang item.

Generator

The generator lang item.

Unpin

The unpin lang item.

Pin

The pin lang item.

PartialEq

The eq lang item.

PartialOrd

The partial_ord lang item.

Panic

The panic lang item.

PanicFmt

The panic_fmt lang item.

PanicDisplay

The panic_display lang item.

PanicStr

The panic_str lang item.

ConstPanicFmt

The const_panic_fmt lang item.

PanicBoundsCheck

The panic_bounds_check lang item.

PanicInfo

The panic_info lang item.

PanicLocation

The panic_location lang item.

PanicImpl

The panic_impl lang item.

BeginPanic

The begin_panic lang item.

libstd panic entry point. Necessary for const eval to be able to catch it

ExchangeMalloc

The exchange_malloc lang item.

BoxFree

The box_free lang item.

DropInPlace

The drop_in_place lang item.

Oom

The oom lang item.

AllocLayout

The alloc_layout lang item.

ConstEvalSelect

The const_eval_select lang item.

ConstConstEvalSelect

The const_eval_select_ct lang item.

Start

The start lang item.

EhPersonality

The eh_personality lang item.

EhCatchTypeinfo

The eh_catch_typeinfo lang item.

OwnedBox

The owned_box lang item.

PhantomData

The phantom_data lang item.

ManuallyDrop

The manually_drop lang item.

MaybeUninit

The maybe_uninit lang item.

AlignOffset

The align_offset lang item.

Align offset for stride != 1; must not panic.

Termination

The termination lang item.

Try

The Try lang item.

SliceLen

The slice_len_fn lang item.

TryTraitFromResidual

The from_residual lang item.

TryTraitFromOutput

The from_output lang item.

TryTraitBranch

The branch lang item.

PollReady

The Ready lang item.

PollPending

The Pending lang item.

FromGenerator

The from_generator lang item.

GetContext

The get_context lang item.

FuturePoll

The poll lang item.

FromFrom

The from lang item.

OptionSome

The Some lang item.

OptionNone

The None lang item.

ResultOk

The Ok lang item.

ResultErr

The Err lang item.

ControlFlowContinue

The Continue lang item.

ControlFlowBreak

The Break lang item.

IntoIterIntoIter

The into_iter lang item.

IteratorNext

The next lang item.

PinNewUnchecked

The new_unchecked lang item.

RangeFrom

The RangeFrom lang item.

RangeFull

The RangeFull lang item.

RangeInclusiveStruct

The RangeInclusive lang item.

RangeInclusiveNew

The range_inclusive_new lang item.

Range

The Range lang item.

RangeToInclusive

The RangeToInclusive lang item.

RangeTo

The RangeTo lang item.

Implementations

[src]

impl LangItem

[src]

pub fn name(self) -> Symbol

Returns the name symbol in #[lang = "$name"]. For example, LangItem::PartialEq.name() would result in sym::eq since it is #[lang = "eq"].

[src]

pub fn group(self) -> Option<LangItemGroup>

The group that this lang item belongs to, or None if it doesn’t belong to a group.

[src]

pub fn required_generics(&self) -> GenericRequirement

Trait Implementations

[src]

impl Clone for LangItem

[src]

fn clone(&self) -> LangItem

Returns a copy of the value. Read more

1.0.0[src]

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

[src]

impl Debug for LangItem

[src]

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

Formats the value using the given formatter. Read more

[src]

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

Feeds this value into the given Hasher. Read more

1.3.0[src]

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

Feeds a slice of this type into the given Hasher. Read more

[src]

impl<CTX> HashStable<CTX> for LangItem

[src]

fn hash_stable(&self, _: &mut CTX, hasher: &mut StableHasher)

[src]

impl PartialEq<LangItem> for LangItem

[src]

fn eq(&self, other: &LangItem) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0[src]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

[src]

impl StructuralEq for LangItem

[src]

impl StructuralPartialEq for LangItem

Auto Trait Implementations

impl RefUnwindSafe for LangItem

Blanket Implementations

[src]

impl<T> Any for T where
T: 'static + ?Sized,

[src]

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

[src]

impl<T> Borrow<T> for T where
T: ?Sized,

[src]

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

[src]

impl<T> BorrowMut<T> for T where
T: ?Sized,

[src]

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

[src]

impl<T> From<T> for T

[src]

pub fn from(t: T) -> T

Performs the conversion.

[src]

impl<T, U> Into for T where
U: From<T>,

[src]

pub fn into(self) -> U

Performs the conversion.

[src]

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

[src]

pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

[src]

pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

[src]

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

[src]

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

[src]

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

[src]

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

Bool: 0 bytes
Char: 0 bytes
Str: 0 bytes
Array: 0 bytes
Slice: 0 bytes
SliceU8: 0 bytes
StrAlloc: 0 bytes
SliceAlloc: 0 bytes
SliceU8Alloc: 0 bytes
ConstPtr: 0 bytes
MutPtr: 0 bytes
ConstSlicePtr: 0 bytes
MutSlicePtr: 0 bytes
I8: 0 bytes
I16: 0 bytes
I32: 0 bytes
I64: 0 bytes
I128: 0 bytes
Isize: 0 bytes
U8: 0 bytes
U16: 0 bytes
U32: 0 bytes
U64: 0 bytes
U128: 0 bytes
Usize: 0 bytes
F32: 0 bytes
F64: 0 bytes
F32Runtime: 0 bytes
F64Runtime: 0 bytes
Sized: 0 bytes
Unsize: 0 bytes
StructuralPeq: 0 bytes
StructuralTeq: 0 bytes
Copy: 0 bytes
Clone: 0 bytes
Sync: 0 bytes
DiscriminantKind: 0 bytes
Discriminant: 0 bytes
PointeeTrait: 0 bytes
Metadata: 0 bytes
DynMetadata: 0 bytes
Freeze: 0 bytes
Drop: 0 bytes
CoerceUnsized: 0 bytes
DispatchFromDyn: 0 bytes
Add: 0 bytes
Sub: 0 bytes
Mul: 0 bytes
Div: 0 bytes
Rem: 0 bytes
Neg: 0 bytes
Not: 0 bytes
BitXor: 0 bytes
BitAnd: 0 bytes
BitOr: 0 bytes
Shl: 0 bytes
Shr: 0 bytes
AddAssign: 0 bytes
SubAssign: 0 bytes
MulAssign: 0 bytes
DivAssign: 0 bytes
RemAssign: 0 bytes
BitXorAssign: 0 bytes
BitAndAssign: 0 bytes
BitOrAssign: 0 bytes
ShlAssign: 0 bytes
ShrAssign: 0 bytes
Index: 0 bytes
IndexMut: 0 bytes
UnsafeCell: 0 bytes
VaList: 0 bytes
Deref: 0 bytes
DerefMut: 0 bytes
DerefTarget: 0 bytes
Receiver: 0 bytes
Fn: 0 bytes
FnMut: 0 bytes
FnOnce: 0 bytes
FnOnceOutput: 0 bytes
Future: 0 bytes
GeneratorState: 0 bytes
Generator: 0 bytes
Unpin: 0 bytes
Pin: 0 bytes
PartialEq: 0 bytes
PartialOrd: 0 bytes
Panic: 0 bytes
PanicFmt: 0 bytes
PanicDisplay: 0 bytes
PanicStr: 0 bytes
ConstPanicFmt: 0 bytes
PanicBoundsCheck: 0 bytes
PanicInfo: 0 bytes
PanicLocation: 0 bytes
PanicImpl: 0 bytes
BeginPanic: 0 bytes
ExchangeMalloc: 0 bytes
BoxFree: 0 bytes
DropInPlace: 0 bytes
Oom: 0 bytes
AllocLayout: 0 bytes
ConstEvalSelect: 0 bytes
ConstConstEvalSelect: 0 bytes
Start: 0 bytes
EhPersonality: 0 bytes
EhCatchTypeinfo: 0 bytes
OwnedBox: 0 bytes
PhantomData: 0 bytes
ManuallyDrop: 0 bytes
MaybeUninit: 0 bytes
AlignOffset: 0 bytes
Termination: 0 bytes
Try: 0 bytes
SliceLen: 0 bytes
TryTraitFromResidual: 0 bytes
TryTraitFromOutput: 0 bytes
TryTraitBranch: 0 bytes
PollReady: 0 bytes
PollPending: 0 bytes
FromGenerator: 0 bytes
GetContext: 0 bytes
FuturePoll: 0 bytes
FromFrom: 0 bytes
OptionSome: 0 bytes
OptionNone: 0 bytes
ResultOk: 0 bytes
ResultErr: 0 bytes
ControlFlowContinue: 0 bytes
ControlFlowBreak: 0 bytes
IntoIterIntoIter: 0 bytes
IteratorNext: 0 bytes
PinNewUnchecked: 0 bytes
RangeFrom: 0 bytes
RangeFull: 0 bytes
RangeInclusiveStruct: 0 bytes
RangeInclusiveNew: 0 bytes
Range: 0 bytes
RangeToInclusive: 0 bytes
RangeTo: 0 bytes

Enum rustc_hir::lang_items::LangItem[−][src]

Variants

Implementations

impl LangItem

pub fn from_u32(u: u32) -> Option<LangItem>

impl LangItem

pub fn name(self) -> Symbol

pub fn group(self) -> Option<LangItemGroup>

pub fn required_generics(&self) -> GenericRequirement

Trait Implementations

impl Clone for LangItem

fn clone(&self) -> LangItem

fn clone_from(&mut self, source: &Self)

impl Debug for LangItem

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

impl<__D: Decoder> Decodable<__D> for LangItem

fn decode(__decoder: &mut __D) -> Result<Self, <__D as Decoder>::Error>

impl<__E: Encoder> Encodable<__E> for LangItem

fn encode(&self, __encoder: &mut __E) -> Result<(), <__E as Encoder>::Error>

impl Hash for LangItem

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

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

impl<CTX> HashStable<CTX> for LangItem

fn hash_stable(&self, _: &mut CTX, hasher: &mut StableHasher)

impl PartialEq<LangItem> for LangItem

fn eq(&self, other: &LangItem) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Copy for LangItem

impl Eq for LangItem

impl StructuralEq for LangItem

impl StructuralPartialEq for LangItem

Auto Trait Implementations

impl RefUnwindSafe for LangItem

impl Send for LangItem

impl Sync for LangItem

impl Unpin for LangItem

impl UnwindSafe for LangItem

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Layout

impl<D: Decoder> Decodable<D> for LangItem

fn decode(decoder: &mut D) -> Result<Self, <__D as Decoder>::Error>

impl<E: Encoder> Encodable<E> for LangItem

fn encode(&self, encoder: &mut E) -> Result<(), <__E as Encoder>::Error>

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

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

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,