criterion = new FieldCriterion(fieldName, createCriterion(tree, ctx));
break;
case MqlParser.NEGATED_CRITERION:
fieldName = child(tree, 0).getChild(0).getText().trim();
criterion = new NotCriterion(fieldName, createCriterion(child(tree, 0), ctx));
break;
default:
assertTokenType(tree);
}