public byte[] GetSourceRange(int startLine, int startColumn, int endLine, int endColumn)
{
byte[] data;
int count;
unmanagedDocument.GetSourceRange(startLine, startColumn, endLine, endColumn, 0, out count, null);
data = new byte[count];
unmanagedDocument.GetSourceRange(startLine, startColumn, endLine, endColumn, count, out count, data);
return(data);
}
public byte[] GetSourceRange(int startLine, int startColumn, int endLine, int endColumn)
{
uint bufSize;
document.GetSourceRange((uint)startLine, (uint)startColumn, (uint)endLine, (uint)endColumn, 0, out bufSize, null);
var buffer = new byte[bufSize];
document.GetSourceRange((uint)startLine, (uint)startColumn, (uint)endLine, (uint)endColumn, (uint)buffer.Length, out bufSize, buffer);
return(buffer);
}
public byte[] GetSourceRange(int startLine, int startColumn, int endLine, int endColumn)
{
int size;
HRESULT.ThrowOnFailure(_unmanaged.GetSourceRange(startLine, startColumn, endLine, endColumn, 0, out size, null));
byte[] data = new byte[size];
HRESULT.ThrowOnFailure(_unmanaged.GetSourceRange(startLine, startColumn, endLine, endColumn, data.Length, out size, data));
return(data);
}
/// <summary>
/// Returns the embedded source for specified document.
/// </summary>
/// <param name="document">The document to read source of.</param>
/// <returns>
/// default(<see cref="ArraySegment{T}"/>) if the document doesn't have embedded source,
/// otherwise byte array segment containing the source.
/// </returns>
public static ArraySegment <byte> GetEmbeddedSource(this ISymUnmanagedDocument document)
{
if (document == null)
{
throw new ArgumentNullException(nameof(document));
}
Marshal.ThrowExceptionForHR(document.GetSourceLength(out int length));
if (length == 0)
{
return(default(ArraySegment <byte>));
}
if (length < sizeof(int))
{
throw new InvalidDataException();
}
var blob = new byte[length];
Marshal.ThrowExceptionForHR(document.GetSourceRange(0, 0, int.MaxValue, int.MaxValue, length, out int bytesRead, blob));
if (bytesRead < sizeof(int) || bytesRead > blob.Length)
{
throw new InvalidDataException();
}
int uncompressedLength = BitConverter.ToInt32(blob, 0);
if (uncompressedLength == 0)
{
return(new ArraySegment <byte>(blob, sizeof(int), bytesRead - sizeof(int)));
}
var uncompressedBytes = new byte[uncompressedLength];
var compressed = new MemoryStream(blob, sizeof(int), bytesRead - sizeof(int));
using (var decompressor = new DeflateStream(compressed, CompressionMode.Decompress))
{
int position = 0;
while (true)
{
int bytesDecompressed = decompressor.Read(uncompressedBytes, position, uncompressedBytes.Length - position);
if (bytesDecompressed == 0)
{
break;
}
position += bytesDecompressed;
}
if (position != uncompressedBytes.Length || decompressor.ReadByte() != -1)
{
throw new InvalidDataException();
}
return(new ArraySegment <byte>(uncompressedBytes));
}
}
public static byte[] GetRawEmbeddedSource(this ISymUnmanagedDocument document)
{
Marshal.ThrowExceptionForHR(document.GetSourceLength(out int length));
if (length == 0)
{
return(null);
}
if (length < sizeof(int))
{
throw new InvalidDataException();
}
var sourceBlob = new byte[length];
Marshal.ThrowExceptionForHR(document.GetSourceRange(0, 0, int.MaxValue, int.MaxValue, length, out int bytesRead, sourceBlob));
if (bytesRead < sizeof(int) || bytesRead > sourceBlob.Length)
{
throw new InvalidDataException();
}
return(sourceBlob);
}
