Function _add_star_projection

src/ast/ast_rewrite_call_subquery.c:549–590

}

static void _add_star_projection
(
	cypher_astnode_t *node,  // node to add the projection to
	uint idx                 // index in which to plant the projection
) {
	cypher_astnode_type_t type = cypher_astnode_type(node);

	cypher_astnode_t *query;
	if(type == CYPHER_AST_STATEMENT) {
		query = (cypher_astnode_t *)cypher_ast_statement_get_body(node);
	} else {
		// node is a call {} clause
		ASSERT(type == CYPHER_AST_CALL_SUBQUERY);

		query = cypher_ast_call_subquery_get_query(node);
	}

	uint nclauses = cypher_ast_query_nclauses(query);

	// create a star projection
	struct cypher_input_range range = {0};
	cypher_astnode_t *star_projection = cypher_ast_with(false, true, NULL, 0,
		NULL, NULL, NULL, NULL, NULL, 0, range);

	cypher_astnode_t *clauses[nclauses + 1];
	for(uint i = 0; i < idx; i++) {
		clauses[i] = cypher_ast_clone(cypher_ast_query_get_clause(query, i));
	}
	clauses[idx] = star_projection;
	for(uint i = idx; i < nclauses; i++) {
		clauses[i + 1] = cypher_ast_clone(cypher_ast_query_get_clause(query, i));
	}

	cypher_astnode_t *new_query = cypher_ast_query(NULL, 0, clauses,
		nclauses + 1, clauses, nclauses + 1, range);

	if(type == CYPHER_AST_STATEMENT) {
		cypher_ast_statement_replace_body(node, new_query);
	} else {
		cypher_ast_call_subquery_replace_query(node, new_query);
	}
}

static bool _add_star_projections
(