private void EnsureInitialized()
{
if (_boundsList != null)
{
return;
}
ReadyToRunReader _readyToRunReader = _runtimeFunction.ReadyToRunReader;
int offset = _offset;
_boundsList = new List <DebugInfoBoundsEntry>();
_variablesList = new List <NativeVarInfo>();
Machine machine = _readyToRunReader.Machine;
byte[] image = _readyToRunReader.Image;
_machine = machine;
// Get the id of the runtime function from the NativeArray
uint lookback = 0;
uint debugInfoOffset = NativeReader.DecodeUnsigned(image, (uint)offset, ref lookback);
if (lookback != 0)
{
System.Diagnostics.Debug.Assert(0 < lookback && lookback < offset);
debugInfoOffset = (uint)offset - lookback;
}
NibbleReader reader = new NibbleReader(image, (int)debugInfoOffset);
uint boundsByteCount = reader.ReadUInt();
uint variablesByteCount = reader.ReadUInt();
int boundsOffset = reader.GetNextByteOffset();
int variablesOffset = (int)(boundsOffset + boundsByteCount);
if (boundsByteCount > 0)
{
ParseBounds(image, boundsOffset);
}
if (variablesByteCount > 0)
{
ParseNativeVarInfo(image, variablesOffset);
}
}
public bool TryGetAt(byte[] image, uint index, ref int pOffset)
{
if (index >= _nElements)
{
return(false);
}
uint offset = 0;
if (_entryIndexSize == 0)
{
int i = (int)(_baseOffset + (index / _blockSize));
offset = NativeReader.ReadByte(image, ref i);
}
else if (_entryIndexSize == 1)
{
int i = (int)(_baseOffset + 2 * (index / _blockSize));
offset = NativeReader.ReadUInt16(image, ref i);
}
else
{
int i = (int)(_baseOffset + 4 * (index / _blockSize));
offset = NativeReader.ReadUInt32(image, ref i);
}
offset += _baseOffset;
for (uint bit = _blockSize >> 1; bit > 0; bit >>= 1)
{
uint val = 0;
uint offset2 = NativeReader.DecodeUnsigned(image, offset, ref val);
if ((index & bit) != 0)
{
if ((val & 2) != 0)
{
offset = offset + (val >> 2);
continue;
}
}
else
{
if ((val & 1) != 0)
{
offset = offset2;
continue;
}
}
// Not found
if ((val & 3) == 0)
{
// Matching special leaf node?
if ((val >> 2) == (index & (_blockSize - 1)))
{
offset = offset2;
break;
}
}
return(false);
}
pOffset = (int)offset;
return(true);
}