public unsafe void PeekReference()
{
var table = new byte[]
{
0xff, 0xff, 0xff, 0x00, // offset 0
0xff, 0xff, 0xff, 0x01, // offset 4
0xff, 0xff, 0xff, 0x1f, // offset 8
0xff, 0xff, 0xff, 0x2f, // offset 12
0xff, 0xff, 0xff, 0xff, // offset 16
};
fixed(byte *tablePtr = table)
{
var block = new MemoryBlock(tablePtr, table.Length);
Assert.Equal(0x0000ffff, block.PeekReference(0, smallRefSize: true));
Assert.Equal(0x0000ffff, block.PeekHeapReference(0, smallRefSize: true));
Assert.Equal(0x0000ffffu, block.PeekReferenceUnchecked(0, smallRefSize: true));
Assert.Equal(0x00ffffff, block.PeekReference(0, smallRefSize: false));
Assert.Throws <BadImageFormatException>(() => block.PeekReference(4, smallRefSize: false));
Assert.Throws <BadImageFormatException>(() => block.PeekReference(16, smallRefSize: false));
Assert.Equal(0x1fffffff, block.PeekHeapReference(8, smallRefSize: false));
Assert.Throws <BadImageFormatException>(() => block.PeekHeapReference(12, smallRefSize: false));
Assert.Throws <BadImageFormatException>(() => block.PeekHeapReference(16, smallRefSize: false));
Assert.Equal(0x01ffffffu, block.PeekReferenceUnchecked(4, smallRefSize: false));
Assert.Equal(0x1fffffffu, block.PeekReferenceUnchecked(8, smallRefSize: false));
Assert.Equal(0x2fffffffu, block.PeekReferenceUnchecked(12, smallRefSize: false));
Assert.Equal(0xffffffffu, block.PeekReferenceUnchecked(16, smallRefSize: false));
}
}
internal GuidHandle GetKind(CustomDebugInformationHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return(GuidHandle.FromIndex(Block.PeekHeapReference(rowOffset + _kindOffset, _isGuidHeapRefSizeSmall)));
}
internal BlobHandle GetImports(ImportScopeHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return(BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _importsOffset, _isBlobHeapRefSizeSmall)));
}
internal DocumentNameBlobHandle GetName(DocumentHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return(DocumentNameBlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + NameOffset, _isBlobHeapRefSizeSmall)));
}
internal StringHandle GetName(LocalConstantHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return(StringHandle.FromOffset(Block.PeekHeapReference(rowOffset + NameOffset, _isStringHeapRefSizeSmall)));
}
internal BlobHandle GetSequencePoints(MethodDebugInformationHandle handle)
{
int rowOffset = (handle.RowId - 1) * RowSize;
return(BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _sequencePointsOffset, _isBlobHeapRefSizeSmall)));
}