/// <summary>
/// Skips the subtree where the root is the current entry, and returns skipped byte length.
/// </summary>
/// <returns>
/// Skipped byte length.
/// If the subtree is not completed, then <c>null</c>.
/// </returns>
public long?Skip()
{
this.VerifyIsNotDisposed();
if (this._mode == UnpackerMode.Enumerating)
{
throw this.NewInvalidModeException();
}
if (this._isSubtreeReading)
{
throw new InvalidOperationException("Unpacker is in 'Subtree' mode.");
}
this._mode = UnpackerMode.Skipping;
var result = this.SkipCore();
if (result != null)
{
this.SetStable();
}
return(result);
}
public long?Skip()
{
this.VerifyIsNotDisposed();
switch (this._mode)
{
case UnpackerMode.Streaming:
if (!this.Data.HasValue)
{
throw this.NewInvalidModeException();
}
break;
case UnpackerMode.Enumerating:
throw this.NewInvalidModeException();
}
this._mode = UnpackerMode.Skipping;
if (this._isSubtreeReading)
{
throw new InvalidOperationException("Unpacker is in 'Subtree' mode.");
}
long?nullable = this.SkipCore();
if (nullable.HasValue)
{
this.SetStable();
}
return(nullable);
}
private void BeginSkip()
{
this.VerifyIsNotDisposed();
if (this._mode == UnpackerMode.Enumerating)
{
this.ThrowInvalidModeException();
}
this._mode = UnpackerMode.Skipping;
}
private void VerifyMode(UnpackerMode mode)
{
this.VerifyIsNotDisposed();
if (this._mode == UnpackerMode.Unknown)
{
this._mode = mode;
}
else if (this._mode != mode)
{
throw this.NewInvalidModeException();
}
}
/// <summary>
/// Verifies the mode.
/// </summary>
/// <param name="mode">The mode to be.</param>
/// <exception cref="ObjectDisposedException">
/// Already disposed.
/// </exception>
/// <exception cref="InvalidOperationException">
/// Is in incompatible mode.
/// </exception>
private void VerifyMode(UnpackerMode mode)
{
this.VerifyIsNotDisposed();
if (this._mode == UnpackerMode.Unknown)
{
this._mode = mode;
return;
}
if (this._mode != mode)
{
this.ThrowInvalidModeException();
}
}
/// <summary>
/// Skips the subtree where the root is the current entry, and returns skipped byte length.
/// </summary>
/// <returns>
/// Skipped byte length.
/// If the subtree is not completed, then <c>null</c>.
/// </returns>
public long?Skip()
{
this.VerifyIsNotDisposed();
switch (this._mode)
{
case UnpackerMode.Enumerating:
{
throw this.NewInvalidModeException();
}
case UnpackerMode.Streaming:
{
if (!this.Data.HasValue)
{
throw this.NewInvalidModeException();
}
// If the value exists, safe to transit skipping.
break;
}
}
this._mode = UnpackerMode.Skipping;
if (this._isSubtreeReading)
{
throw new InvalidOperationException("Unpacker is in 'Subtree' mode.");
}
var result = this.SkipCore();
if (result != null)
{
this.SetStable();
}
return(result);
}
private void SetStable()
{
// Now, this instance can transit another mode.
this._mode = UnpackerMode.Unknown;
}
private void SetStable()
{
this._mode = UnpackerMode.Unknown;
}
