Enum ConditionNode

pub enum ConditionNode<'a> {
    Leaf(Condition<'a>),
    Branch {
        left: Box<ConditionNode<'a>>,
        op: LogicalOperator,
        right: Box<ConditionNode<'a>>,
    },
    Group(Box<ConditionNode<'a>>),
    Empty,
}

查询条件节点枚举，用于构建条件树

Variants

Leaf(Condition<'a>)

Branch

Fields

left: Box<ConditionNode<'a>>

op: LogicalOperator

right: Box<ConditionNode<'a>>

Group(Box<ConditionNode<'a>>)

Empty

Trait Implementations

impl<'a> Clone for ConditionNode<'a>

fn clone(&self) -> ConditionNode<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ConditionNode<'a>

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

Formats the value using the given formatter.

impl<'a> Default for ConditionNode<'a>

fn default() -> Self

Returns the “default value” for a type.