resolveSwitch method

Implementation

Node? resolveSwitch(Switch switchNode) {
  final bindRules = switchNode.children.where(
    (c) => c.xmlTagName == 'bindRule',
  );
  for (var bindRule in bindRules) {
    final ruleId = bindRule.rawAttributes['rule'];
    final constituentId = bindRule.rawAttributes['constituent'];
    if (ruleId != null && constituentId != null) {
      if (evaluateRule(ruleId)) {
        final res = getNodeById(constituentId);
        if (res != null) return res;
      }
    }
  }
  final defaultComp = switchNode.children
      .where((c) => c.xmlTagName == 'defaultComponent')
      .firstOrNull;
  if (defaultComp != null) {
    final compId = defaultComp.rawAttributes['component'];
    if (compId != null) {
      return getNodeById(compId);
    }
  }
  return null;
}