Struct chalk_ir::Goals

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pub struct Goals<I: Interner> { /* private fields */ }

Expand description

List of interned elements.

Implementations

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impl<I: Interner> Goals

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pub fn debug(&self, interner: I) -> GoalsDebug<'_, I>

Show debug output for Goals.

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impl<I: Interner> Goals

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

Get the interned elements.

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pub fn as_slice(&self, interner: I) -> &[Goal]

Returns a slice containing the elements.

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pub fn at(&self, interner: I, index: usize) -> &Goal

Index into the sequence.

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pub fn empty(interner: I) -> Self

Create an empty sequence.

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

Check whether this is an empty sequence.

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pub fn iter(&self, interner: I) -> Iter<'_, Goal>

Get an iterator over the elements of the sequence.

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pub fn len(&self, interner: I) -> usize

Get the length of the sequence.

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impl<I: Interner> Goals

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pub fn from_fallible<E>(
interner: I,
elements: impl IntoIterator<Item = Result<impl CastTo<Goal>, E>>
) -> Result<Self, E>

Tries to create a sequence using an iterator of element-like things.

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pub fn from_iter(
interner: I,
elements: impl IntoIterator<Item = impl CastTo<Goal>>
) -> Self

Create a sequence from elements

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pub fn from1(interner: I, element: impl CastTo<Goal>) -> Self

Create a sequence from a single element.

Trait Implementations

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impl<I: Clone + Interner> Clone for Goals where
I::InternedGoals: Clone,

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fn clone(&self) -> Goals

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl<I: Interner> Debug for Goals

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

Formats the value using the given formatter. Read more

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impl<I: Interner> Fold for Goals

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). Read more

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fn fold_with<E>(
 self,
 folder: &mut dyn Folder<I, Error = E>,
 outer_binder: DebruijnIndex
) -> Result<Self::Result, E>

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. Read more

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impl<I: Interner> HasInterner for Goals

type Interner = I

The interner associated with the type.

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impl<I: Hash + Interner> Hash for Goals where
I::InternedGoals: Hash,

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

Feeds this value into the given Hasher. Read more

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

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

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impl<I: Ord + Interner> Ord for Goals where
I::InternedGoals: Ord,

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

This method returns an Ordering between self and other. Read more

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

Compares and returns the maximum of two values. Read more

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

Compares and returns the minimum of two values. Read more

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

Restrict a value to a certain interval. Read more

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impl<I: PartialEq + Interner> PartialEq<Goals> for Goals where
I::InternedGoals: PartialEq,

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

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

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

This method tests for !=.

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impl<I: PartialOrd + Interner> PartialOrd<Goals> for Goals where
I::InternedGoals: PartialOrd,

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

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

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

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

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

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

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

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

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

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

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impl<I: Interner> Visit for Goals

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

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. Read more

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impl<I: Interner> Zip for Goals

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

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

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impl<I: Interner> StructuralPartialEq for Goals

Auto Trait Implementations

impl RefUnwindSafe for Goals where
::InternedGoals: RefUnwindSafe,

impl Send for Goals where
::InternedGoals: Send,

impl Sync for Goals where
::InternedGoals: Sync,

impl Unpin for Goals where
::InternedGoals: Unpin,

impl UnwindSafe for Goals where
::InternedGoals: UnwindSafe,

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> Cast for T

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fn cast(self, interner: U::Interner) -> U where
Self: CastTo,
U: HasInterner,

Cast a value to type U using CastTo.

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impl<T, I> CouldMatch<T> for T where
T: Zip + HasInterner<Interner = I> + ?Sized,
I: Interner,

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fn could_match(
 &self,
 interner: I,
 db: &dyn UnificationDatabase,
 other: &T
) -> bool

Checks whether self and other could possibly match.

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, I> Shift for T where
T: Fold,
I: Interner,

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fn shifted_in(self, interner: I) -> <T as Fold>::Result

Shifts this term in one level of binders.

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fn shifted_in_from(
 self,
 interner: I,
 source_binder: DebruijnIndex
) -> <T as Fold>::Result

Shifts a term valid at outer_binder so that it is valid at the innermost binder. See DebruijnIndex::shifted_in_from for a detailed explanation. Read more

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fn shifted_out_to(
 self,
 interner: I,
 target_binder: DebruijnIndex
) -> Result<<T as Fold>::Result, NoSolution>

Shifts a term valid at the innermost binder so that it is valid at outer_binder. See DebruijnIndex::shifted_out_to for a detailed explanation. Read more

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fn shifted_out(self, interner: I) -> Result<<T as Fold>::Result, NoSolution>

Shifts this term out one level of binders.

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

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

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

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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impl<T, I> VisitExt for T where
I: Interner,
T: Visit,

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

Check whether there are free (non-bound) variables.

Struct chalk_ir::Goals

Implementations

impl<I: Interner> Goals<I>

pub fn debug(&self, interner: I) -> GoalsDebug<'_, I>

impl<I: Interner> Goals<I>

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

pub fn as_slice(&self, interner: I) -> &[Goal<I>]

pub fn at(&self, interner: I, index: usize) -> &Goal<I>

pub fn empty(interner: I) -> Self

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

pub fn iter(&self, interner: I) -> Iter<'_, Goal<I>>

pub fn len(&self, interner: I) -> usize

impl<I: Interner> Goals<I>

pub fn from_fallible<E>( interner: I, elements: impl IntoIterator<Item = Result<impl CastTo<Goal<I>>, E>>) -> Result<Self, E>

pub fn from_iter( interner: I, elements: impl IntoIterator<Item = impl CastTo<Goal<I>>>) -> Self

pub fn from1(interner: I, element: impl CastTo<Goal<I>>) -> Self

Trait Implementations

impl<I: Clone + Interner> Clone for Goals<I> where I::InternedGoals: Clone,

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

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

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

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

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

type Result = Goals<I>

fn fold_with<E>( self, folder: &mut dyn Folder<I, Error = E>, outer_binder: DebruijnIndex) -> Result<Self::Result, E>

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

type Interner = I

impl<I: Hash + Interner> Hash for Goals<I> where I::InternedGoals: Hash,

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

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

impl<I: Ord + Interner> Ord for Goals<I> where I::InternedGoals: Ord,

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

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

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

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

impl<I: PartialEq + Interner> PartialEq<Goals<I>> for Goals<I> where I::InternedGoals: PartialEq,

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

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

impl<I: PartialOrd + Interner> PartialOrd<Goals<I>> for Goals<I> where I::InternedGoals: PartialOrd,

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

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

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

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

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

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

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

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

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

impl<I: Copy + Interner> Copy for Goals<I> where I::InternedGoals: Copy,

impl<I: Eq + Interner> Eq for Goals<I> where I::InternedGoals: Eq,

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

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

Auto Trait Implementations

impl<I> RefUnwindSafe for Goals<I> where <I as Interner>::InternedGoals: RefUnwindSafe,

impl<I> Send for Goals<I> where <I as Interner>::InternedGoals: Send,

impl<I> Sync for Goals<I> where <I as Interner>::InternedGoals: Sync,

impl<I> Unpin for Goals<I> where <I as Interner>::InternedGoals: Unpin,

impl<I> UnwindSafe for Goals<I> where <I as Interner>::InternedGoals: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> Cast for T

fn cast<U>(self, interner: U::Interner) -> U where Self: CastTo<U>, U: HasInterner,

impl<T, I> CouldMatch<T> for T where T: Zip<I> + HasInterner<Interner = I> + ?Sized, I: Interner,

fn could_match( &self, interner: I, db: &dyn UnificationDatabase<I>, other: &T) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T, I> Shift<I> for T where T: Fold<I>, I: Interner,

fn shifted_in(self, interner: I) -> <T as Fold<I>>::Result

fn shifted_in_from( self, interner: I, source_binder: DebruijnIndex) -> <T as Fold<I>>::Result

fn shifted_out_to( self, interner: I, target_binder: DebruijnIndex) -> Result<<T as Fold<I>>::Result, NoSolution>

fn shifted_out(self, interner: I) -> Result<<T as Fold<I>>::Result, NoSolution>

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

type Owned = T

pub fn from_fallible<E>(
interner: I,
elements: impl IntoIterator<Item = Result<impl CastTo<Goal<I>>, E>>
) -> Result<Self, E>

pub fn from_iter(
interner: I,
elements: impl IntoIterator<Item = impl CastTo<Goal<I>>>
) -> Self

impl<I: Clone + Interner> Clone for Goals<I> where
I::InternedGoals: Clone,

fn fold_with<E>(
self,
folder: &mut dyn Folder<I, Error = E>,
outer_binder: DebruijnIndex
) -> Result<Self::Result, E>

impl<I: Hash + Interner> Hash for Goals<I> where
I::InternedGoals: Hash,

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

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

impl<I: Ord + Interner> Ord for Goals<I> where
I::InternedGoals: Ord,

impl<I: PartialEq + Interner> PartialEq<Goals<I>> for Goals<I> where
I::InternedGoals: PartialEq,

impl<I: PartialOrd + Interner> PartialOrd<Goals<I>> for Goals<I> where
I::InternedGoals: PartialOrd,

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

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

impl<I: Copy + Interner> Copy for Goals<I> where
I::InternedGoals: Copy,

impl<I: Eq + Interner> Eq for Goals<I> where
I::InternedGoals: Eq,

impl<I> RefUnwindSafe for Goals<I> where
<I as Interner>::InternedGoals: RefUnwindSafe,

impl<I> Send for Goals<I> where
<I as Interner>::InternedGoals: Send,

impl<I> Sync for Goals<I> where
<I as Interner>::InternedGoals: Sync,

impl<I> Unpin for Goals<I> where
<I as Interner>::InternedGoals: Unpin,

impl<I> UnwindSafe for Goals<I> where
<I as Interner>::InternedGoals: UnwindSafe,

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,

fn cast<U>(self, interner: U::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,

impl<T, I> CouldMatch<T> for T where
T: Zip<I> + HasInterner<Interner = I> + ?Sized,
I: Interner,

fn could_match(
&self,
interner: I,
db: &dyn UnificationDatabase<I>,
other: &T
) -> bool

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

impl<T, I> Shift<I> for T where
T: Fold<I>,
I: Interner,

fn shifted_in_from(
self,
interner: I,
source_binder: DebruijnIndex
) -> <T as Fold<I>>::Result

fn shifted_out_to(
self,
interner: I,
target_binder: DebruijnIndex
) -> Result<<T as Fold<I>>::Result, NoSolution>

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>,

impl<T, I> VisitExt<I> for T where
I: Interner,
T: Visit<I>,