Enum LineNode 

pub enum LineNode<'a> {
    Relation(RelationNode<'a>),
    AdvExt(AdvExt<'a>),
}

A parsed plan line: either a relation or an advanced-extension annotation.

Classification happens at construction time by inspecting the inner grammar rule, so downstream code can use standard Rust pattern matching rather than runtime rule inspection.

Variants

Relation(RelationNode<'a>)

AdvExt(AdvExt<'a>)

Implementations

impl<'a> LineNode<'a>

pub fn parse(line: &'a str, line_no: i64) -> Result<Self, ParseError>

pub fn parse_root(line: &'a str, line_no: i64) -> Result<Self, ParseError>

Parse the line as a top-level relation at depth 0 (either root_relation or regular relation)

Trait Implementations

impl<'a> Clone for LineNode<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for LineNode<'a>

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

Formats the value using the given formatter.