EPPlus/Utils/ValidationResult.cs

using System;

namespace OfficeOpenXml.Utils;

public class ValidationResult : IValidationResult {
  public ValidationResult(bool result)
      : this(result, null) {}

  public ValidationResult(bool result, string errorMessage) {
    _result = result;
    _errorMessage = errorMessage;
  }

  private readonly bool _result;
  private readonly string _errorMessage;

  private void Throw() {
    if (string.IsNullOrEmpty(_errorMessage)) {
      throw new InvalidOperationException();
    }
    throw new InvalidOperationException(_errorMessage);
  }

  void IValidationResult.IsTrue() {
    if (!_result) {
      Throw();
    }
  }

  void IValidationResult.IsFalse() {
    if (_result) {
      Throw();
    }
  }
}