Enum chalk_engine::Literal

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pub enum Literal<I: Interner> {
    Positive(InEnvironment<Goal<I>>),
    Negative(InEnvironment<Goal<I>>),
}

Expand description

Either A or ~A, where A is a Env |- Goal.

Variants

`Positive(InEnvironment<Goal>)`

`Negative(InEnvironment<Goal>)`

Trait Implementations

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impl<I: Clone + Interner> Clone for Literal

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fn clone(&self) -> Literal

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<I: Debug + Interner> Debug for Literal

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

Formats the value using the given formatter. Read more

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impl<I: Interner> Fold for Literal

type Result = Literal

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> Hash for Literal

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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: Interner> PartialEq<Literal> for Literal

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

This method tests for !=.

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impl<I: Interner> Visit for Literal

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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> Eq for Literal

Auto Trait Implementations

impl RefUnwindSafe for Literal where
::InternedGoal: RefUnwindSafe,
::InternedProgramClauses: RefUnwindSafe,

impl Send for Literal where
::InternedGoal: Send,
::InternedProgramClauses: Send,

impl Sync for Literal where
::InternedGoal: Sync,
::InternedProgramClauses: Sync,

impl Unpin for Literal where
::InternedGoal: Unpin,
::InternedProgramClauses: Unpin,

impl UnwindSafe for Literal where
::InternedGoal: UnwindSafe,
::InternedProgramClauses: 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: ::Interner) -> U where
Self: CastTo,
U: HasInterner,

Cast a value to type U using CastTo.

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impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

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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> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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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.

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Enum chalk_engine::Literal

Variants

Positive(InEnvironment<Goal<I>>)

Negative(InEnvironment<Goal<I>>)

Trait Implementations

impl<I: Clone + Interner> Clone for Literal<I>

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

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

impl<I: Debug + Interner> Debug for Literal<I>

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

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

type Result = Literal<I>

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

impl<I: Interner> Hash for Literal<I>

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

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

impl<I: Interner> PartialEq<Literal<I>> for Literal<I>

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

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

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

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

impl<I: Interner> Eq for Literal<I>

Auto Trait Implementations

impl<I> RefUnwindSafe for Literal<I> where <I as Interner>::InternedGoal: RefUnwindSafe, <I as Interner>::InternedProgramClauses: RefUnwindSafe,

impl<I> Send for Literal<I> where <I as Interner>::InternedGoal: Send, <I as Interner>::InternedProgramClauses: Send,

impl<I> Sync for Literal<I> where <I as Interner>::InternedGoal: Sync, <I as Interner>::InternedProgramClauses: Sync,

impl<I> Unpin for Literal<I> where <I as Interner>::InternedGoal: Unpin, <I as Interner>::InternedProgramClauses: Unpin,

impl<I> UnwindSafe for Literal<I> where <I as Interner>::InternedGoal: UnwindSafe, <I as Interner>::InternedProgramClauses: 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 as HasInterner>::Interner) -> U where Self: CastTo<U>, U: HasInterner,

impl<Q, K> Equivalent<K> for Q where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

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

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

type Error = <U as TryFrom<T>>::Error

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

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

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

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

`Positive(InEnvironment<Goal<I>>)`

`Negative(InEnvironment<Goal<I>>)`

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

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

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

impl<I> RefUnwindSafe for Literal<I> where
<I as Interner>::InternedGoal: RefUnwindSafe,
<I as Interner>::InternedProgramClauses: RefUnwindSafe,

impl<I> Send for Literal<I> where
<I as Interner>::InternedGoal: Send,
<I as Interner>::InternedProgramClauses: Send,

impl<I> Sync for Literal<I> where
<I as Interner>::InternedGoal: Sync,
<I as Interner>::InternedProgramClauses: Sync,

impl<I> Unpin for Literal<I> where
<I as Interner>::InternedGoal: Unpin,
<I as Interner>::InternedProgramClauses: Unpin,

impl<I> UnwindSafe for Literal<I> where
<I as Interner>::InternedGoal: UnwindSafe,
<I as Interner>::InternedProgramClauses: 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 as HasInterner>::Interner) -> U where
Self: CastTo<U>,
U: HasInterner,

impl<Q, K> Equivalent<K> for Q where
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,

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>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,