Function _AST_MapReferencedEdge

src/ast/ast_build_reference_map.c:98–113

Adds an edge to the referenced entities rax if it has multiple types or any properties (inline filter).

// Adds an edge to the referenced entities rax if it has multiple types or any properties (inline filter).
static void _AST_MapReferencedEdge(AST *ast, const cypher_astnode_t *edge, bool force_mapping) {

	const cypher_astnode_t *properties = cypher_ast_rel_pattern_get_properties(edge);
	// Disregard empty property maps.
	if(properties && cypher_astnode_nchildren(properties) == 0) properties = NULL;
	// An edge with inlined filters is always referenced for the FilterTree.
	// (In the case of a CREATE path, these are properties being set)
	if(properties || force_mapping) {
		const char *alias = AST_ToString(edge);
		_AST_UpdateRefMap(ast, alias);

		// Map any references within the properties map, such as 'b' in:
		// ({val: ID(b)})
		if(properties) _AST_MapExpression(ast, properties);
	}
}

// Maps entities in a given path.
static void _AST_MapReferencedEntitiesInPath(AST *ast, const cypher_astnode_t *path,