Struct chalk_ir::GenericArg

pub struct GenericArg<I: Interner> { /* fields omitted */ }

A generic argument, see GenericArgData for more information.

Implementations

impl<I: Interner> GenericArg<I>

pub fn new(interner: &I, data: GenericArgData<I>) -> Self

Constructs a generic argument using GenericArgData.

pub fn interned(&self) -> &I::InternedGenericArg

Gets the interned value.

pub fn data(&self, interner: &I) -> &GenericArgData<I>

Gets the underlying data.

pub fn assert_ty_ref(&self, interner: &I) -> &Ty<I>

Asserts that this is a type argument.

pub fn assert_lifetime_ref(&self, interner: &I) -> &Lifetime<I>

Asserts that this is a lifetime argument.

pub fn assert_const_ref(&self, interner: &I) -> &Const<I>

Asserts that this is a constant argument.

pub fn is_ty(&self, interner: &I) -> bool

Checks whether the generic argument is a type.

pub fn ty(&self, interner: &I) -> Option<&Ty<I>>

Returns the type if it is one, None otherwise.

pub fn lifetime(&self, interner: &I) -> Option<&Lifetime<I>>

Returns the lifetime if it is one, None otherwise.

pub fn constant(&self, interner: &I) -> Option<&Const<I>>

Returns the constant if it is one, None otherwise.

Trait Implementations

impl<I: Interner> CastTo<GenericArg<I>> for Ty<I>

fn cast_to(self, interner: &I) -> GenericArg<I>

Cast a value to type T.

impl<I: Interner> CastTo<GenericArg<I>> for Lifetime<I>

fn cast_to(self, interner: &I) -> GenericArg<I>

Cast a value to type T.

impl<I: Interner> CastTo<GenericArg<I>> for Const<I>

fn cast_to(self, interner: &I) -> GenericArg<I>

Cast a value to type T.

impl<I: Interner> CastTo<GenericArg<I>> for GenericArg<I>

fn cast_to(self, _interner: &I) -> GenericArg<I>

Cast a value to type T.

impl<I: Clone + Interner> Clone for GenericArg<I> where
    I::InternedGenericArg: Clone, 

fn clone(&self) -> GenericArg<I>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<I: Copy + Interner> Copy for GenericArg<I> where
    I::InternedGenericArg: Copy, 

impl<I: Interner> Debug for GenericArg<I>

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

Formats the value using the given formatter.

impl<I: Eq + Interner> Eq for GenericArg<I> where
    I::InternedGenericArg: Eq, 

impl<I: Interner> Fold<I> for GenericArg<I>

type Result = GenericArg<I>

The type of value that will be produced once folding is done. Typically this is Self, unless Self contains borrowed values, in which case owned values are produced (for example, one can fold over a &T value where T: Fold, in which case you get back a T, not a &T).

fn fold_with<'i>(
    self,
    folder: &mut dyn Folder<'i, I>,
    outer_binder: DebruijnIndex
) -> Fallible<Self::Result> where
    I: 'i, 

Apply the given folder folder to self; binders is the number of binders that are in scope when beginning the folder. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

impl<I: Interner> HasInterner for GenericArg<I>

type Interner = I

The interner associated with the type.

impl<I: Hash + Interner> Hash for GenericArg<I> where
    I::InternedGenericArg: Hash, 

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl<I: Ord + Interner> Ord for GenericArg<I> where
    I::InternedGenericArg: Ord, 

fn cmp(&self, other: &GenericArg<I>) -> Ordering

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<I: PartialEq + Interner> PartialEq<GenericArg<I>> for GenericArg<I> where
    I::InternedGenericArg: PartialEq, 

fn eq(&self, other: &GenericArg<I>) -> bool

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

fn ne(&self, other: &GenericArg<I>) -> bool

This method tests for !=.

impl<I: PartialOrd + Interner> PartialOrd<GenericArg<I>> for GenericArg<I> where
    I::InternedGenericArg: PartialOrd, 

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

#[must_use]

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

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

impl<I: Interner> StructuralEq for GenericArg<I>

impl<I: Interner> StructuralPartialEq for GenericArg<I>

impl<I: Interner> Visit<I> for GenericArg<I>

fn visit_with<'i, B>(
    &self,
    visitor: &mut dyn Visitor<'i, I, BreakTy = B>,
    outer_binder: DebruijnIndex
) -> ControlFlow<B> where
    I: 'i, 

Apply the given visitor visitor to self; binders is the number of binders that are in scope when beginning the visitor. Typically binders starts as 0, but is adjusted when we encounter Binders<T> in the IR or other similar constructs.

impl<I: Interner> Zip<I> for GenericArg<I>

fn zip_with<'i, Z: Zipper<'i, I>>(
    zipper: &mut Z,
    variance: Variance,
    a: &Self,
    b: &Self
) -> Fallible<()> where
    I: 'i, 

Uses the zipper to walk through two values, ensuring that they match.