@discipl/law-reg/dist/expressions/andExpressionChecker.js

Discipl Law and Regulation Compliance Library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.AndExpressionChecker = void 0;

var _baseSubExpressionChecker = require("./baseSubExpressionChecker");

class AndExpressionChecker extends _baseSubExpressionChecker.BaseSubExpressionChecker {
  async checkSubExpression(fact, ssid, context) {
    let hasUndefined = false;

    for (const op of fact.operands) {
      const newContext = this._getContextExplainer().extendContextWithExplanation(context);

      const operandResult = await this._getExpressionChecker().checkExpression(op, ssid, newContext);
      this.logger.debug('OperandResult in AND', operandResult, 'for operand', op);

      if (operandResult === false) {
        this.logger.debug('Resolved AND as false, because', op, 'is false');

        this._getContextExplainer().extendContextExplanationWithResult(context, false);

        return false;
      }

      if (typeof operandResult === 'undefined') {
        hasUndefined = true;
      }
    }

    const andResult = hasUndefined ? undefined : true;
    this.logger.debug('Resolved AND as', andResult);

    this._getContextExplainer().extendContextExplanationWithResult(context, andResult);

    return andResult;
  }

}

exports.AndExpressionChecker = AndExpressionChecker;