Struct RelationParser 

pub struct RelationParser<'a> {
    tree: TreeBuilder<'a>,
}

Fields

tree: TreeBuilder<'a>

Implementations

impl<'a> RelationParser<'a>

pub fn parse_line( &mut self, line: IndentedLine<'a>, line_no: i64, ) -> Result<(), ParseError>

fn parse_relation( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, ctx: RelationContext<'_>, ) -> Result<(Rel, usize), ParseError>

Dispatch by grammar rule after validating addenda constraints. Standard relations go through parse_rel; extension relations go through parse_extension_relation.

fn parse_rel<T: RelationParsePair>( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, ctx: RelationContext<'_>, ) -> Result<(Rel, usize), ParseError>

Generic bridge between parse_relation and the RelationParsePair trait: wraps MessageParseError with line context and calls into_rel to apply addenda and produce the final Rel.

fn parse_extension_relation( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, ctx: RelationContext<'_>, ) -> Result<(Rel, usize), ParseError>

Handle extension relations separately from parse_rel because they need registry lookups that RelationParsePair doesn’t support.

fn parse_extension_read_relation( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, ctx: RelationContext<'_>, ) -> Result<(Rel, usize), ParseError>

Parse Read:Extension[...], whose table detail is supplied by exactly one + Ext:Name[...] addendum.

fn build_rel( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, node: RelationNode<'_>, ) -> Result<(Rel, usize), ParseError>

Walk the relation tree depth-first, converting structural types (children, addenda) into proto types via RelationContext. Delegates grammar-rule-specific work to parse_relation.

fn build_plan_rel( &self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, node: RelationNode<'_>, ) -> Result<PlanRel, ParseError>

Build a tree of relations.

fn build( self, extensions: &SimpleExtensions, registry: &ExtensionRegistry, ) -> Result<Vec<PlanRel>, ParseError>

Build all the trees.

Trait Implementations

impl<'a> Clone for RelationParser<'a>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for RelationParser<'a>

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

Formats the value using the given formatter.

impl<'a> Default for RelationParser<'a>

fn default() -> RelationParser<'a>

Returns the “default value” for a type.