spargebra::algebra

Enum Expression

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pub enum Expression {
Show 24 variants NamedNode(NamedNode), Literal(Literal), Variable(Variable), Or(Box<Self>, Box<Self>), And(Box<Self>, Box<Self>), Equal(Box<Self>, Box<Self>), SameTerm(Box<Self>, Box<Self>), Greater(Box<Self>, Box<Self>), GreaterOrEqual(Box<Self>, Box<Self>), Less(Box<Self>, Box<Self>), LessOrEqual(Box<Self>, Box<Self>), In(Box<Self>, Vec<Self>), Add(Box<Self>, Box<Self>), Subtract(Box<Self>, Box<Self>), Multiply(Box<Self>, Box<Self>), Divide(Box<Self>, Box<Self>), UnaryPlus(Box<Self>), UnaryMinus(Box<Self>), Not(Box<Self>), Exists(Box<GraphPattern>), Bound(Variable), If(Box<Self>, Box<Self>, Box<Self>), Coalesce(Vec<Self>), FunctionCall(Function, Vec<Self>),
}
Expand description

Variants§

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NamedNode(NamedNode)

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Literal(Literal)

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Variable(Variable)

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Or(Box<Self>, Box<Self>)

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And(Box<Self>, Box<Self>)

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Equal(Box<Self>, Box<Self>)

RDFterm-equal and all the XSD equalities.

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SameTerm(Box<Self>, Box<Self>)

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Greater(Box<Self>, Box<Self>)

op:numeric-greater-than and other XSD greater than operators.

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GreaterOrEqual(Box<Self>, Box<Self>)

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Less(Box<Self>, Box<Self>)

op:numeric-less-than and other XSD greater than operators.

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LessOrEqual(Box<Self>, Box<Self>)

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In(Box<Self>, Vec<Self>)

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Add(Box<Self>, Box<Self>)

op:numeric-add and other XSD additions.

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Subtract(Box<Self>, Box<Self>)

op:numeric-subtract and other XSD subtractions.

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Multiply(Box<Self>, Box<Self>)

op:numeric-multiply and other XSD multiplications.

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Divide(Box<Self>, Box<Self>)

op:numeric-divide and other XSD divides.

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UnaryPlus(Box<Self>)

op:numeric-unary-plus and other XSD unary plus.

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UnaryMinus(Box<Self>)

op:numeric-unary-minus and other XSD unary minus.

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Not(Box<Self>)

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Exists(Box<GraphPattern>)

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Bound(Variable)

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If(Box<Self>, Box<Self>, Box<Self>)

IF.

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Coalesce(Vec<Self>)

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FunctionCall(Function, Vec<Self>)

A regular function call.

Trait Implementations§

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impl Clone for Expression

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fn clone(&self) -> Expression

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 Debug for Expression

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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 Display for Expression

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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 From<Literal> for Expression

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fn from(p: Literal) -> Self

Converts to this type from the input type.
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impl From<NamedNode> for Expression

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fn from(p: NamedNode) -> Self

Converts to this type from the input type.
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impl From<NamedNodePattern> for Expression

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fn from(p: NamedNodePattern) -> Self

Converts to this type from the input type.
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impl From<Variable> for Expression

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fn from(v: Variable) -> Self

Converts to this type from the input type.
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impl Hash for Expression

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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, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for Expression

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fn eq(&self, other: &Expression) -> 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 Expression

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impl StructuralPartialEq for Expression

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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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V