Struct rustc_mir::transform::qualify_consts::Qualif

struct Qualif {
    bits: u8,
}

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Fields

bits: u8

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Methods

impl Qualif

pub const MUTABLE_INTERIOR: Qualif

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MUTABLE_INTERIOR: Qualif = Qualif{bits: 1 << 0,}

pub const NEEDS_DROP: Qualif

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NEEDS_DROP: Qualif = Qualif{bits: 1 << 1,}

pub const FN_ARGUMENT: Qualif

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FN_ARGUMENT: Qualif = Qualif{bits: 1 << 2,}

pub const NOT_CONST: Qualif

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NOT_CONST: Qualif = Qualif{bits: 1 << 3,}

pub const NOT_PROMOTABLE: Qualif

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NOT_PROMOTABLE: Qualif = Qualif{bits: 1 << 4,}

pub const CONST_ERROR: Qualif

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CONST_ERROR: Qualif = Qualif{bits:
           !<Qualif>::MUTABLE_INTERIOR.bits & !<Qualif>::NOT_PROMOTABLE.bits,}

pub fn empty() -> Qualif

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Returns an empty set of flags.

pub fn all() -> Qualif

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Returns the set containing all flags.

pub fn bits(&self) -> u8

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Returns the raw value of the flags currently stored.

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

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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: u8) -> Qualif

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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: Qualif) -> bool

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

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

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

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

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Inserts the specified flags in-place.

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

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Removes the specified flags in-place.

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

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Toggles the specified flags in-place.

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

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

impl<'a, 'tcx> Qualif

fn restrict(     &mut self,     ty: Ty<'tcx>,     tcx: TyCtxt<'a, 'tcx, 'tcx>,     param_env: ParamEnv<'tcx> )

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Remove flags which are impossible for the given type.

Trait Implementations

impl Copy for Qualif

impl PartialEq for Qualif

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

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

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

This method tests for !=.

impl Eq for Qualif

fn assert_receiver_is_total_eq(&self)

impl Clone for Qualif

fn clone(&self) -> Qualif

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialOrd for Qualif

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

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

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

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

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

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

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

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

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

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

impl Ord for Qualif

fn cmp(&self, other: &Qualif) -> 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 Qualif

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 Qualif

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

Formats the value using the given formatter.

impl Binary for Qualif

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

Formats the value using the given formatter.

impl Octal for Qualif

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

Formats the value using the given formatter.

impl LowerHex for Qualif

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

Formats the value using the given formatter.

impl UpperHex for Qualif

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

Formats the value using the given formatter.

impl BitOr for Qualif

type Output = Qualif

The resulting type after applying the | operator.

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

Returns the union of the two sets of flags.

impl BitOrAssign for Qualif

fn bitor_assign(&mut self, other: Qualif)

Adds the set of flags.

impl BitXor for Qualif

type Output = Qualif

The resulting type after applying the ^ operator.

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

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

impl BitXorAssign for Qualif

fn bitxor_assign(&mut self, other: Qualif)

Toggles the set of flags.

impl BitAnd for Qualif

type Output = Qualif

The resulting type after applying the & operator.

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

Returns the intersection between the two sets of flags.

impl BitAndAssign for Qualif

fn bitand_assign(&mut self, other: Qualif)

Disables all flags disabled in the set.

impl Sub for Qualif

type Output = Qualif

The resulting type after applying the - operator.

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

Returns the set difference of the two sets of flags.

impl SubAssign for Qualif

fn sub_assign(&mut self, other: Qualif)

Disables all flags enabled in the set.

impl Not for Qualif

type Output = Qualif

The resulting type after applying the ! operator.

fn not(self) -> Qualif

Returns the complement of this set of flags.

impl Extend<Qualif> for Qualif

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

Extends a collection with the contents of an iterator.

impl FromIterator<Qualif> for Qualif

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

Creates a value from an iterator.