private static ImmutableArray <bool> GetFlags(DynamicLocalInfo bucket)
{
int flagCount = bucket.FlagCount;
ulong flags = bucket.Flags;
var builder = ArrayBuilder <bool> .GetInstance(flagCount);
for (int i = 0; i < flagCount; i++)
{
builder.Add((flags & (1u << i)) != 0);
}
return(builder.ToImmutableAndFree());
}
private static BlobHandle SerializeDynamicLocalBlob(MetadataBuilder metadataBuilder, DynamicLocalInfo dynamicInfo)
{
Debug.Assert(dynamicInfo.FlagCount > 0);
Debug.Assert(dynamicInfo.Flags != 0);
var builder = new BlobBuilder();
int c = dynamicInfo.FlagCount - 1;
ulong flags = dynamicInfo.Flags;
// trim trailing 0s:
while ((flags & (1u << c)) == 0)
{
c--;
}
int b = 0;
int shift = 0;
for (int i = 0; i <= c; i++)
{
bool bit = (flags & (1u << c)) != 0;
if (bit)
{
b |= 1 << shift;
}
if (shift == 7)
{
builder.WriteByte((byte)b);
b = 0;
shift = 0;
}
else
{
shift++;
}
}
if (b != 0)
{
builder.WriteByte((byte)b);
}
return(metadataBuilder.GetOrAddBlob(builder));
}
