/// <summary>
/// Compares the current content of this writer with another one.
/// </summary>
/// <exception cref="InvalidOperationException">Content is not available, the builder has been linked with another one.</exception>
public bool ContentEquals(BlobBuilder other)
{
if (!IsHead)
{
Throw.InvalidOperationBuilderAlreadyLinked();
}
if (ReferenceEquals(this, other))
{
return(true);
}
if (other == null)
{
return(false);
}
if (!other.IsHead)
{
Throw.InvalidOperationBuilderAlreadyLinked();
}
if (Count != other.Count)
{
return(false);
}
var leftEnumerator = GetChunks();
var rightEnumerator = other.GetChunks();
int leftStart = 0;
int rightStart = 0;
bool leftContinues = leftEnumerator.MoveNext();
bool rightContinues = rightEnumerator.MoveNext();
while (leftContinues && rightContinues)
{
Debug.Assert(leftStart == 0 || rightStart == 0);
var left = leftEnumerator.Current;
var right = rightEnumerator.Current;
int minLength = Math.Min(left.Length - leftStart, right.Length - rightStart);
if (!ByteSequenceComparer.Equals(left._buffer, leftStart, right._buffer, rightStart, minLength))
{
return(false);
}
leftStart += minLength;
rightStart += minLength;
// nothing remains in left chunk to compare:
if (leftStart == left.Length)
{
leftContinues = leftEnumerator.MoveNext();
leftStart = 0;
}
// nothing remains in left chunk to compare:
if (rightStart == right.Length)
{
rightContinues = rightEnumerator.MoveNext();
rightStart = 0;
}
}
return(leftContinues == rightContinues);
}
/// <summary>
/// Compares the current content of this writer with another one.
/// </summary>
/// <exception cref="InvalidOperationException">Content is not available, the builder has been linked with another one.</exception>
public bool ContentEquals(BlobBuilder other)
{
if (!IsHead)
{
Throw.InvalidOperationBuilderAlreadyLinked();
}
if (ReferenceEquals(this, other))
{
return true;
}
if (other == null)
{
return false;
}
if (!other.IsHead)
{
Throw.InvalidOperationBuilderAlreadyLinked();
}
if (Count != other.Count)
{
return false;
}
var leftEnumerator = GetChunks();
var rightEnumerator = other.GetChunks();
int leftStart = 0;
int rightStart = 0;
bool leftContinues = leftEnumerator.MoveNext();
bool rightContinues = rightEnumerator.MoveNext();
while (leftContinues && rightContinues)
{
Debug.Assert(leftStart == 0 || rightStart == 0);
var left = leftEnumerator.Current;
var right = rightEnumerator.Current;
int minLength = Math.Min(left.Length - leftStart, right.Length - rightStart);
if (!ByteSequenceComparer.Equals(left._buffer, leftStart, right._buffer, rightStart, minLength))
{
return false;
}
leftStart += minLength;
rightStart += minLength;
// nothing remains in left chunk to compare:
if (leftStart == left.Length)
{
leftContinues = leftEnumerator.MoveNext();
leftStart = 0;
}
// nothing remains in left chunk to compare:
if (rightStart == right.Length)
{
rightContinues = rightEnumerator.MoveNext();
rightStart = 0;
}
}
return leftContinues == rightContinues;
}
