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EirTerm

Enum EirTerm 

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pub enum EirTerm {
    Variable(String),
    Anonymous,
    Integer(i64),
    FloatBits(u64),
    String(String),
    Symbol(u32),
    List(Vec<EirTerm>),
    Cons {
        head: Box<EirTerm>,
        tail: Box<EirTerm>,
    },
    Compound {
        functor: String,
        args: Vec<EirTerm>,
    },
    PredRef(String),
    Aggregate {
        op: String,
        variable: String,
    },
}
Expand description

Term representation preserved at the epistemic boundary.

Variants§

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Variable(String)

Named logic variable.

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Anonymous

Anonymous wildcard.

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Integer(i64)

Integer literal.

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FloatBits(u64)

Floating-point literal represented by its IEEE-754 bits.

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String(String)

Quoted string literal.

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Symbol(u32)

Interned symbol identifier.

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List(Vec<EirTerm>)

Finite list literal.

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Cons

Finite cons pattern.

Fields

§head: Box<EirTerm>

Head term.

§tail: Box<EirTerm>

Tail term.

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Compound

Finite compound term.

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§functor: String

Functor name.

§args: Vec<EirTerm>

Compound arguments.

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PredRef(String)

Static predicate reference.

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Aggregate

Aggregate term preserved from a rule head.

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§op: String

Aggregate operator name.

§variable: String

Variable being aggregated.

Trait Implementations§

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impl Clone for EirTerm

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fn clone(&self) -> EirTerm

Returns a duplicate 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 Debug for EirTerm

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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 PartialEq for EirTerm

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for EirTerm

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impl StructuralPartialEq for EirTerm

Auto Trait Implementations§

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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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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

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> ToOwned for T
where T: Clone,

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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)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,