Struct ParentInfo 

pub struct ParentInfo {
    pub parent_id: Option<NodeId>,
    pub arg_key: String,
    pub index: Option<usize>,
}

Information about a node’s parent relationship

Fields

parent_id: Option<NodeId>

The NodeId of the parent (None for root)

arg_key: String

Which argument/field in the parent this node occupies

index: Option<usize>

Index if the node is part of a list (e.g., expressions in SELECT)

Trait Implementations

impl Clone for ParentInfo

fn clone(&self) -> ParentInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParentInfo

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

Formats the value using the given formatter.