pub enum Condition<'a> {
    Conjunction(Vec<Condition<'a>>),
    Disjunction(Vec<Condition<'a>>),
    UnaryCondition(UnaryCondition<'a>),
    BinaryCondition(BinaryCondition<'a>),
    TernaryCondition(TernaryCondition<'a>),
    Value(Value<'a>),
}
Expand description

This enum represents a condition tree.

Variants§

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Conjunction(Vec<Condition<'a>>)

A list of Conditions, that get expanded to “{} AND {} …”

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Disjunction(Vec<Condition<'a>>)

A list of Conditions, that get expanded to “{} OR {} …”

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UnaryCondition(UnaryCondition<'a>)

Representation of an unary condition.

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BinaryCondition(BinaryCondition<'a>)

Representation of a binary condition.

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TernaryCondition(TernaryCondition<'a>)

Representation of a ternary condition.

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Value(Value<'a>)

Representation of a value.

Trait Implementations§

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impl<'a> BuildCondition<'a> for Condition<'a>

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fn build_to_writer( &self, writer: &mut impl Write, dialect: DBImpl, lookup: &mut Vec<Value<'a>> ) -> Result<(), Error>

This method is used to convert a condition to SQL without allocating a dedicated string.
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fn build(&self, dialect: DBImpl, lookup: &mut Vec<Value<'a>>) -> String

This method is used to convert a condition to SQL.
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impl<'a> Debug for Condition<'a>

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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<'a> PartialEq<Condition<'a>> for Condition<'a>

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fn eq(&self, other: &Condition<'a>) -> bool

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> StructuralPartialEq for Condition<'a>

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for Condition<'a>

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impl<'a> Send for Condition<'a>

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impl<'a> Sync for Condition<'a>

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impl<'a> Unpin for Condition<'a>

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impl<'a> UnwindSafe for Condition<'a>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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

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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.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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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.