rustc_middle::ty

Struct ReprFlags

pub struct ReprFlags(pub(crate) u8);

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impl ReprFlags

pub const IS_C: ReprFlags = _

pub const IS_SIMD: ReprFlags = _

pub const IS_TRANSPARENT: ReprFlags = _

pub const IS_LINEAR: ReprFlags = _

pub const RANDOMIZE_LAYOUT: ReprFlags = _

pub const FIELD_ORDER_UNOPTIMIZABLE: ReprFlags = _

pub const ABI_UNOPTIMIZABLE: ReprFlags = _

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impl ReprFlags

pub const fn empty() -> ReprFlags

Get a flags value with all bits unset.

pub const fn all() -> ReprFlags

Get a flags value with all known bits set.

pub const fn bits(&self) -> u8

Get the underlying bits value.

The returned value is exactly the bits set in this flags value.

pub const fn from_bits(bits: u8) -> Option<ReprFlags>

Convert from a bits value.

This method will return None if any unknown bits are set.

pub const fn from_bits_truncate(bits: u8) -> ReprFlags

Convert from a bits value, unsetting any unknown bits.

pub const fn from_bits_retain(bits: u8) -> ReprFlags

Convert from a bits value exactly.

pub fn from_name(name: &str) -> Option<ReprFlags>

Get a flags value with the bits of a flag with the given name set.

This method will return None if name is empty or doesn’t correspond to any named flag.

pub const fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.

pub const fn is_all(&self) -> bool

Whether all known bits in this flags value are set.

pub const fn intersects(&self, other: ReprFlags) -> bool

Whether any set bits in a source flags value are also set in a target flags value.

pub const fn contains(&self, other: ReprFlags) -> bool

Whether all set bits in a source flags value are also set in a target flags value.

pub fn insert(&mut self, other: ReprFlags)

The bitwise or (|) of the bits in two flags values.

pub fn remove(&mut self, other: ReprFlags)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. remove won’t truncate other, but the ! operator will.

pub fn toggle(&mut self, other: ReprFlags)

The bitwise exclusive-or (^) of the bits in two flags values.

pub fn set(&mut self, other: ReprFlags, value: bool)

Call insert when value is true or remove when value is false.

pub const fn intersection(self, other: ReprFlags) -> ReprFlags

The bitwise and (&) of the bits in two flags values.

pub const fn union(self, other: ReprFlags) -> ReprFlags

The bitwise or (|) of the bits in two flags values.

pub const fn difference(self, other: ReprFlags) -> ReprFlags

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

pub const fn symmetric_difference(self, other: ReprFlags) -> ReprFlags

The bitwise exclusive-or (^) of the bits in two flags values.

pub const fn complement(self) -> ReprFlags

The bitwise negation (!) of the bits in a flags value, truncating the result.

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impl ReprFlags

pub const fn iter(&self) -> Iter<ReprFlags>

Yield a set of contained flags values.

Each yielded flags value will correspond to a defined named flag. Any unknown bits will be yielded together as a final flags value.

pub const fn iter_names(&self) -> IterNames<ReprFlags>

Yield a set of contained named flags values.

This method is like iter, except only yields bits in contained named flags. Any unknown bits, or bits not corresponding to a contained flag will not be yielded.

Trait Implementations§

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impl Binary for ReprFlags

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

Formats the value using the given formatter. Read more
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impl BitAnd for ReprFlags

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fn bitand(self, other: ReprFlags) -> ReprFlags

The bitwise and (&) of the bits in two flags values.

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type Output = ReprFlags

The resulting type after applying the & operator.
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impl BitAndAssign for ReprFlags

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fn bitand_assign(&mut self, other: ReprFlags)

The bitwise and (&) of the bits in two flags values.

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impl BitOr for ReprFlags

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fn bitor(self, other: ReprFlags) -> ReprFlags

The bitwise or (|) of the bits in two flags values.

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type Output = ReprFlags

The resulting type after applying the | operator.
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impl BitOrAssign for ReprFlags

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fn bitor_assign(&mut self, other: ReprFlags)

The bitwise or (|) of the bits in two flags values.

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impl BitXor for ReprFlags

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fn bitxor(self, other: ReprFlags) -> ReprFlags

The bitwise exclusive-or (^) of the bits in two flags values.

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type Output = ReprFlags

The resulting type after applying the ^ operator.
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impl BitXorAssign for ReprFlags

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fn bitxor_assign(&mut self, other: ReprFlags)

The bitwise exclusive-or (^) of the bits in two flags values.

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impl Clone for ReprFlags

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fn clone(&self) -> ReprFlags

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ReprFlags

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

Formats the value using the given formatter. Read more
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impl<__D> Decodable<__D> for ReprFlags
where __D: Decoder,

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fn decode(__decoder: &mut __D) -> ReprFlags

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impl Default for ReprFlags

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fn default() -> ReprFlags

Returns the “default value” for a type. Read more
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impl<__E> Encodable<__E> for ReprFlags
where __E: Encoder,

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fn encode(&self, __encoder: &mut __E)

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impl Extend<ReprFlags> for ReprFlags

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fn extend<T>(&mut self, iterator: T)
where T: IntoIterator<Item = ReprFlags>,

The bitwise or (|) of the bits in each flags value.

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fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)
Extends a collection with exactly one element.
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fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)
Reserves capacity in a collection for the given number of additional elements. Read more
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impl Flags for ReprFlags

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const FLAGS: &'static [Flag<ReprFlags>] = _

The set of defined flags.
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type Bits = u8

The underlying bits type.
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fn bits(&self) -> u8

Get the underlying bits value. Read more
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fn from_bits_retain(bits: u8) -> ReprFlags

Convert from a bits value exactly.
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fn empty() -> Self

Get a flags value with all bits unset.
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fn all() -> Self

Get a flags value with all known bits set.
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fn from_bits(bits: Self::Bits) -> Option<Self>

Convert from a bits value. Read more
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fn from_bits_truncate(bits: Self::Bits) -> Self

Convert from a bits value, unsetting any unknown bits.
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fn from_name(name: &str) -> Option<Self>

Get a flags value with the bits of a flag with the given name set. Read more
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fn iter(&self) -> Iter<Self>

Yield a set of contained flags values. Read more
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fn iter_names(&self) -> IterNames<Self>

Yield a set of contained named flags values. Read more
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fn is_empty(&self) -> bool

Whether all bits in this flags value are unset.
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fn is_all(&self) -> bool

Whether all known bits in this flags value are set.
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fn intersects(&self, other: Self) -> bool
where Self: Sized,

Whether any set bits in a source flags value are also set in a target flags value.
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fn contains(&self, other: Self) -> bool
where Self: Sized,

Whether all set bits in a source flags value are also set in a target flags value.
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fn insert(&mut self, other: Self)
where Self: Sized,

The bitwise or (|) of the bits in two flags values.
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fn remove(&mut self, other: Self)
where Self: Sized,

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn toggle(&mut self, other: Self)
where Self: Sized,

The bitwise exclusive-or (^) of the bits in two flags values.
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fn set(&mut self, other: Self, value: bool)
where Self: Sized,

Call Flags::insert when value is true or Flags::remove when value is false.
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fn intersection(self, other: Self) -> Self

The bitwise and (&) of the bits in two flags values.
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fn union(self, other: Self) -> Self

The bitwise or (|) of the bits in two flags values.
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fn difference(self, other: Self) -> Self

The intersection of a source flags value with the complement of a target flags value (&!). Read more
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fn symmetric_difference(self, other: Self) -> Self

The bitwise exclusive-or (^) of the bits in two flags values.
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fn complement(self) -> Self

The bitwise negation (!) of the bits in a flags value, truncating the result.
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impl FromIterator<ReprFlags> for ReprFlags

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fn from_iter<T>(iterator: T) -> ReprFlags
where T: IntoIterator<Item = ReprFlags>,

The bitwise or (|) of the bits in each flags value.

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impl<__CTX> HashStable<__CTX> for ReprFlags
where __CTX: HashStableContext,

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fn hash_stable( &self, __hcx: &mut __CTX, __hasher: &mut StableHasher<SipHasher128>, )

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impl IntoIterator for ReprFlags

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type Item = ReprFlags

The type of the elements being iterated over.
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type IntoIter = Iter<ReprFlags>

Which kind of iterator are we turning this into?
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fn into_iter(self) -> Iter<ReprFlags>

Creates an iterator from a value. Read more
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impl LowerHex for ReprFlags

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

Formats the value using the given formatter. Read more
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impl Not for ReprFlags

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fn not(self) -> ReprFlags

The bitwise negation (!) of the bits in a flags value, truncating the result.

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type Output = ReprFlags

The resulting type after applying the ! operator.
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impl Octal for ReprFlags

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

Formats the value using the given formatter. Read more
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impl PartialEq for ReprFlags

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Sub for ReprFlags

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fn sub(self, other: ReprFlags) -> ReprFlags

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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type Output = ReprFlags

The resulting type after applying the - operator.
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impl SubAssign for ReprFlags

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fn sub_assign(&mut self, other: ReprFlags)

The intersection of a source flags value with the complement of a target flags value (&!).

This method is not equivalent to self & !other when other has unknown bits set. difference won’t truncate other, but the ! operator will.

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impl UpperHex for ReprFlags

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

Formats the value using the given formatter. Read more
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impl Copy for ReprFlags

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impl Eq for ReprFlags

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impl StructuralPartialEq for ReprFlags

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Alignment of Self.
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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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type Output = R

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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