public void DangerousCreateFromUnderlyingArrayNegativeTests()
{
byte[] array = null;
ImmutableArray <byte> immutable = ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref array);
Assert.True(immutable.IsDefault);
}
// internal for testing
internal static unsafe ImmutableArray <byte> DecodeEmbeddedPortablePdbDebugDirectoryData(AbstractMemoryBlock block)
{
byte[] decompressed;
const int headerSize = 2 * sizeof(int);
var headerReader = new BlobReader(block.Pointer, headerSize);
if (headerReader.ReadUInt32() != PortablePdbVersions.DebugDirectoryEmbeddedSignature)
{
throw new BadImageFormatException(SR.UnexpectedEmbeddedPortablePdbDataSignature);
}
int decompressedSize = headerReader.ReadInt32();
try
{
decompressed = new byte[decompressedSize];
}
catch
{
throw new BadImageFormatException(SR.DataTooBig);
}
var compressed = new ReadOnlyUnmanagedMemoryStream(block.Pointer + headerSize, block.Size - headerSize);
var deflate = new DeflateStream(compressed, CompressionMode.Decompress, leaveOpen: true);
if (decompressedSize > 0)
{
int actualLength;
try
{
actualLength = deflate.TryReadAll(decompressed, 0, decompressed.Length);
}
catch (InvalidDataException e)
{
throw new BadImageFormatException(e.Message, e.InnerException);
}
if (actualLength != decompressed.Length)
{
throw new BadImageFormatException(SR.SizeMismatch);
}
}
// Check that there is no more compressed data left,
// in case the decompressed size specified in the header is smaller
// than the actual decompressed size of the data.
if (deflate.ReadByte() != -1)
{
throw new BadImageFormatException(SR.SizeMismatch);
}
return(ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref decompressed));
}
// internal for testing
internal static PdbChecksumDebugDirectoryData DecodePdbChecksumDebugDirectoryData(AbstractMemoryBlock block)
{
var reader = block.GetReader();
var algorithmName = reader.ReadUtf8NullTerminated();
byte[]? checksum = reader.ReadBytes(reader.RemainingBytes);
if (algorithmName.Length == 0 || checksum.Length == 0)
{
throw new BadImageFormatException(SR.InvalidPdbChecksumDataFormat);
}
return(new PdbChecksumDebugDirectoryData(
algorithmName,
ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref checksum)));
}
public void DangerousCreateFromUnderlyingArray()
{
byte[] array = new byte[3] {
1, 2, 3
};
byte[] arrayCopy = array;
ImmutableArray <byte> immutable = ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref array);
// DangerousCreateFromUnderlyingArray clears the given parameter as a signal that
// the mutable array should no longer be modified through mutable references.
Assert.Null(array);
Assert.Equal(3, immutable.Length);
Assert.Equal(1, immutable[0]);
Assert.Equal(2, immutable[1]);
Assert.Equal(3, immutable[2]);
arrayCopy[0] = 9;
Assert.Equal(9, immutable[0]);
}
public ImmutableArray <byte> GetILContent()
{
byte[] bytes = GetILBytes();
return(ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref bytes));
}
/// <exception cref="ArgumentOutOfRangeException">Range specified by <paramref name="start"/> and <paramref name="byteCount"/> falls outside of the bounds of the buffer content.</exception>
/// <exception cref="InvalidOperationException">Content is not available, the builder has been linked with another one.</exception>
public ImmutableArray <byte> ToImmutableArray(int start, int byteCount)
{
var array = ToArray(start, byteCount);
return(ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref array));
}
public static ImmutableArray <byte> ReadImmutableBytes(byte *buffer, int byteCount)
{
byte[] bytes = ReadBytes(buffer, byteCount);
return(ImmutableByteArrayInterop.DangerousCreateFromUnderlyingArray(ref bytes));
}