Struct modus_lib::builtin::from

source · [−]

pub struct from;

Trait Implementations

impl BuiltinPredicate for from

fn name(&self) -> &'static str

fn kind(&self) -> Kind

The kind of this predicate or operator. Should match https://github.com/modus-continens/docs/blob/main/src/library/README.md Read more

fn arg_groundness(&self) -> &'static [bool ]

Return if the argument is allowed to be ungrounded. This means that a “false” here will force a constant.

fn apply(&self, lit: &Literal) -> Option<Literal>

Return a new literal specifically constructed to unify with the input literal. The returned literal will essentially be used as the head of a new “hidden” rule, which will hopefully unify with the input literal. The rule will contain no body literals. Read more

fn select(&self, lit: &Literal) -> SelectBuiltinResult

Auto Trait Implementations

impl RefUnwindSafe for from

impl Send for from

impl Sync for from

impl Unpin for from

impl UnwindSafe for from

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

impl<I, T> ExtractContext<I, ()> for T

fn extract_context(self, _original_input: I)

Given the context attached to a nom error, and given the original input to the nom parser, extract more the useful context information. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> 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.

impl<I> RecreateContext<I> for I

fn recreate_context(_original_input: I, tail: I) -> I

Given the original input, as well as the context reported by nom, recreate a context in the original string where the error occurred. Read more

impl<T, U> TryFrom<U> 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<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.