Enum substrait_validator::output::tree::NodeData

pub enum NodeData {
    Child(Child),
    Diagnostic(Diagnostic),
    DataType(Arc<DataType>),
    Comment(Comment),
}

Information nodes for a parsed protobuf message.

Variants

Child(Child)

A reference to a child node in the tree.

Diagnostic(Diagnostic)

Indicates that parsing/validating this message resulted in some diagnostic message being emitted. The secondary error level is the modified level via

DataType(Arc<DataType>)

Provides (intermediate) type information for this node. Depending on the message, this may be a struct or named struct representing a schema, or it may represent the type of some scalar expression. Multiple TypeInfo nodes may be present, in particular for relations that perform multiple operations in one go (for example read, project, emit). The TypeInfo and operation description *Field nodes are then ordered by data flow. In particular, the last TypeInfo node always represents the type of the final result of a node.

Comment(Comment)

Used for adding unstructured additional information to a message, wherever this may aid human understanding of a message.

Trait Implementations

impl Clone for NodeData

fn clone(&self) -> NodeData

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NodeData

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

Formats the value using the given formatter.

impl From<&'_ NodeData> for Data

fn from(node: &NodeData) -> Self

Converts to this type from the input type.

impl PartialEq<NodeData> for NodeData

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

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &NodeData) -> bool

This method tests for !=.

impl StructuralPartialEq for NodeData