Struct rustc::ty::VariantFlags

pub struct VariantFlags {
    bits: u32,
}

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Fields

bits: u32

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Methods

impl VariantFlags

pub const NO_VARIANT_FLAGS: VariantFlags

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pub const IS_FIELD_LIST_NON_EXHAUSTIVE: VariantFlags

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Indicates whether the field list of this variant is #[non_exhaustive].

pub fn empty() -> VariantFlags

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Returns an empty set of flags.

pub fn all() -> VariantFlags

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Returns the set containing all flags.

pub fn bits(&self) -> u32

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Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u32) -> Option<VariantFlags>

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Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub fn from_bits_truncate(bits: u32) -> VariantFlags

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Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub fn is_empty(&self) -> bool

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Returns true if no flags are currently stored.

pub fn is_all(&self) -> bool

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Returns true if all flags are currently set.

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

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Returns true if there are flags common to both self and other.

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

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Returns true all of the flags in other are contained within self.

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

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Inserts the specified flags in-place.

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

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Removes the specified flags in-place.

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

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Toggles the specified flags in-place.

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

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Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl<'a> HashStable<StableHashingContext<'a>> for VariantFlags

fn hash_stable<W: StableHasherResult>(     &self,     _: &mut StableHashingContext<'a>,     hasher: &mut StableHasher<W> )

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impl Copy for VariantFlags

impl PartialEq for VariantFlags

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

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

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

This method tests for !=.

impl Eq for VariantFlags

fn assert_receiver_is_total_eq(&self)

impl Clone for VariantFlags

fn clone(&self) -> VariantFlags

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialOrd for VariantFlags

fn partial_cmp(&self, other: &VariantFlags) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &VariantFlags) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &VariantFlags) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &VariantFlags) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &VariantFlags) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Ord for VariantFlags

fn cmp(&self, other: &VariantFlags) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Hash for VariantFlags

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Debug for VariantFlags

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

Formats the value using the given formatter.

impl Binary for VariantFlags

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

Formats the value using the given formatter.

impl Octal for VariantFlags

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

Formats the value using the given formatter.

impl LowerHex for VariantFlags

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

Formats the value using the given formatter.

impl UpperHex for VariantFlags

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

Formats the value using the given formatter.

impl BitOr for VariantFlags

type Output = VariantFlags

The resulting type after applying the | operator.

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

Returns the union of the two sets of flags.

impl BitOrAssign for VariantFlags

fn bitor_assign(&mut self, other: VariantFlags)

Adds the set of flags.

impl BitXor for VariantFlags

type Output = VariantFlags

The resulting type after applying the ^ operator.

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

Returns the left flags, but with all the right flags toggled.

impl BitXorAssign for VariantFlags

fn bitxor_assign(&mut self, other: VariantFlags)

Toggles the set of flags.

impl BitAnd for VariantFlags

type Output = VariantFlags

The resulting type after applying the & operator.

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

Returns the intersection between the two sets of flags.

impl BitAndAssign for VariantFlags

fn bitand_assign(&mut self, other: VariantFlags)

Disables all flags disabled in the set.

impl Sub for VariantFlags

type Output = VariantFlags

The resulting type after applying the - operator.

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

Returns the set difference of the two sets of flags.

impl SubAssign for VariantFlags

fn sub_assign(&mut self, other: VariantFlags)

Disables all flags enabled in the set.

impl Not for VariantFlags

type Output = VariantFlags

The resulting type after applying the ! operator.

fn not(self) -> VariantFlags

Returns the complement of this set of flags.

impl Extend<VariantFlags> for VariantFlags

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

Extends a collection with the contents of an iterator.

impl FromIterator<VariantFlags> for VariantFlags

fn from_iter<T: IntoIterator<Item = VariantFlags>>(iterator: T) -> VariantFlags

Creates a value from an iterator.