docs: void readCheckConstraintCondition(Constraint c) {
  
          readThis(Tokens.OPENBRACKET);
          startRecording();
  
          isCheckOrTriggerCondition = true;
  
          Expression condition = XreadBooleanValueExpression();
  
          isCheckOrTriggerCondition = false;
  
          Token[] tokens = getRecordedStatement();
  
          readThis(Tokens.CLOSEBRACKET);
  
          c.check          = condition;
          c.checkStatement = Token.getSQL(tokens);
      }