public bool Equals(Maybe <T> other)
{
if (ReferenceEquals(null, other))
{
return(false);
}
if (ReferenceEquals(this, other))
{
return(true);
}
return(HasValue.Equals(other.HasValue) && EqualityComparer <T> .Default.Equals(Value, other.Value));
}
/// <inheritdoc />
public bool Equals(Optional <T> other)
{
if (!HasValue)
{
return(!other.HasValue);
}
if (!other.HasValue)
{
return(false);
}
if (_value is null && other._value is null)
{
return(true);
}
if (_value is null || other._value is null)
{
return(false);
}
return(HasValue.Equals(other.HasValue) && EqualityComparer <T> .Default.Equals(_value, other._value));
}
/// <summary>
/// Determines whether the specified <see cref="Optional{T}" /> is equal to this instance.
/// </summary>
/// <param name="other">The <see cref="Optional{T}" /> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="Optional{T}" /> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public bool Equals(Optional <T> other)
{
if (HasValue.Equals(other.HasValue))
{
if (typeof(IEnumerable).IsAssignableFrom(typeof(T)))
{
var enumerable1 = (IEnumerable)_value;
var enumerable2 = (IEnumerable)other._value;
if (enumerable1 == null && enumerable2 == null)
{
return(true);
}
if (enumerable1 == null || enumerable2 == null)
{
return(false);
}
IEnumerator enumerator1 = enumerable1.GetEnumerator();
IEnumerator enumerator2 = enumerable2.GetEnumerator();
while (enumerator1.MoveNext())
{
if (!(enumerator2.MoveNext() &&
EqualityComparer <object> .Default.Equals(enumerator1.Current, enumerator2.Current)))
{
return(false);
}
}
return(!enumerator2.MoveNext());
}
return(EqualityComparer <T> .Default.Equals(_value, other._value));
}
return(false);
}
protected bool Equals(Maybe <T> other)
{
return(EqualityComparer <T> .Default.Equals(Value, other.Value) && string.Equals(Error, other.Error) && HasValue.Equals(other.HasValue));
}
public bool Equals(Maybe <T> other) => EqualityComparer <T> .Default.Equals(_value, other._value) && HasValue.Equals(other.HasValue);
public bool Equals(Optional <T> other)
{
return(HasValue.Equals(other.HasValue) && EqualityComparer <T> .Default.Equals(_value, other._value));
}