internal string GetString(StringHandle handle, MetadataStringDecoder utf8Decoder)
{
byte[] prefix;
if (handle.IsVirtual)
{
switch (handle.StringKind)
{
case StringKind.Virtual:
return(s_virtualValues[(int)handle.GetVirtualIndex()]);
case StringKind.WinRTPrefixed:
prefix = MetadataReader.WinRTPrefix;
break;
default:
Debug.Assert(false, "We should not get here");
return(null);
}
}
else
{
prefix = null;
}
int bytesRead;
char otherTerminator = handle.StringKind == StringKind.DotTerminated ? '.' : '\0';
return(this.Block.PeekUtf8NullTerminated(handle.GetHeapOffset(), prefix, utf8Decoder, out bytesRead, otherTerminator));
}
private MemoryBlock GetVirtualHandleMemoryBlock(StringHandle handle)
{
Debug.Assert(handle.IsVirtual);
var heap = VirtualHeap.GetOrCreateVirtualHeap(ref _lazyVirtualHeap);
lock (heap)
{
if (!heap.TryGetMemoryBlock(handle.RawValue, out var block))
{
byte[] bytes;
switch (handle.StringKind)
{
case StringKind.Virtual:
bytes = Encoding.UTF8.GetBytes(GetVirtualString(handle.GetVirtualIndex()));
break;
case StringKind.WinRTPrefixed:
bytes = GetNonVirtualStringBytes(handle, MetadataReader.WinRTPrefix);
break;
default:
throw ExceptionUtilities.UnexpectedValue(handle.StringKind);
}
block = heap.AddBlob(handle.RawValue, bytes);
}
return(block);
}
}
private string GetVirtualHandleString(StringHandle handle, MetadataStringDecoder utf8Decoder)
{
Debug.Assert(handle.IsVirtual);
return(handle.StringKind switch
{
StringKind.Virtual => GetVirtualString(handle.GetVirtualIndex()),
StringKind.WinRTPrefixed => GetNonVirtualString(handle, utf8Decoder, MetadataReader.WinRTPrefix),
_ => throw ExceptionUtilities.UnexpectedValue(handle.StringKind),
});
private string GetVirtualHandleString(StringHandle handle, MetadataStringDecoder utf8Decoder)
{
Debug.Assert(handle.IsVirtual);
switch (handle.StringKind)
{
case StringKind.Virtual:
return(GetVirtualString(handle.GetVirtualIndex()));
}
throw ExceptionUtilities.UnexpectedValue(handle.StringKind);
}
internal string GetString(StringHandle handle, MetadataStringDecoder utf8Decoder)
{
byte[] prefix;
if (handle.IsVirtual)
{
switch (handle.StringKind)
{
case StringKind.Virtual:
return s_virtualValues[(int)handle.GetVirtualIndex()];
case StringKind.WinRTPrefixed:
prefix = MetadataReader.WinRTPrefix;
break;
default:
Debug.Assert(false, "We should not get here");
return null;
}
}
else
{
prefix = null;
}
int bytesRead;
char otherTerminator = handle.StringKind == StringKind.DotTerminated ? '.' : '\0';
return this.Block.PeekUtf8NullTerminated(handle.GetHeapOffset(), prefix, utf8Decoder, out bytesRead, otherTerminator);
}
private MemoryBlock GetVirtualHandleMemoryBlock(StringHandle handle)
{
Debug.Assert(handle.IsVirtual);
var heap = VirtualHeap.GetOrCreateVirtualHeap(ref _lazyVirtualHeap);
VirtualHeapBlob virtualBlob;
lock (heap)
{
if (!heap.Table.TryGetValue(handle.RawValue, out virtualBlob))
{
byte[] bytes;
switch (handle.StringKind)
{
case StringKind.Virtual:
bytes = Encoding.UTF8.GetBytes(GetVirtualString(handle.GetVirtualIndex()));
break;
case StringKind.WinRTPrefixed:
bytes = GetNonVirtualStringBytes(handle, MetadataReader.WinRTPrefix);
break;
default:
throw ExceptionUtilities.UnexpectedValue(handle.StringKind);
}
virtualBlob = new VirtualHeapBlob(bytes);
heap.Table.Add(handle.RawValue, virtualBlob);
}
}
return virtualBlob.GetMemoryBlock();
}
private string GetVirtualHandleString(StringHandle handle, MetadataStringDecoder utf8Decoder)
{
Debug.Assert(handle.IsVirtual);
switch (handle.StringKind)
{
case StringKind.Virtual:
return GetVirtualString(handle.GetVirtualIndex());
case StringKind.WinRTPrefixed:
return GetNonVirtualString(handle, utf8Decoder, MetadataReader.WinRTPrefix);
}
throw ExceptionUtilities.UnexpectedValue(handle.StringKind);
}