Module structural 

Parser for the structural part of the Substrait file format.

This is the overall parser for parsing the text format. It is responsible for tracking which section of the file we are currently parsing, and parsing each line separately.

Structs

Addenda 🔒

Parsed + lines attached to a relation.

Addendum

A +-prefixed addendum line attached to a relation node. The pair holds the grammar rule directly (already unwrapped from the outer planNode).

IndentedLine

Represents an input line, trimmed of leading two-space indents and final whitespace. Contains the number of indents and the trimmed line.

ParsedAddendum 🔒

A parsed addendum line plus enough source location to build later errors.

Parser

A parser for Substrait query plans in text format.

RelationContext 🔒

Intermediate state for relation parsing: the structural tree data (children, addenda) has been parsed, but the relation’s own grammar pair hasn’t been converted to a protobuf relation yet.

RelationNode

A relation node in the plan tree, before conversion to a Substrait proto.

RelationParser

TreeBuilder

Enums

LineNode

A parsed plan line: either a relation or a +-prefixed addendum line.

State

Constants

PLAN_HEADER