internal static UInt32 GetInlineField(byte *pFields, EETypeOptionalFieldTag eTag, UInt32 uiDefaultValue)
{
if (pFields == null)
{
return(uiDefaultValue);
}
bool isLastField = false;
while (!isLastField)
{
byte fieldHeader = NativePrimitiveDecoder.ReadUInt8(ref pFields);
isLastField = (fieldHeader & 0x80) != 0;
EETypeOptionalFieldTag eCurrentTag = (EETypeOptionalFieldTag)(fieldHeader & 0x7f);
UInt32 uiCurrentValue = NativePrimitiveDecoder.DecodeUnsigned(ref pFields);
// If we found a tag match return the current value.
if (eCurrentTag == eTag)
{
return(uiCurrentValue);
}
}
// Reached end of stream without getting a match. Field is not present so return default value.
return(uiDefaultValue);
}
private static unsafe string GetStringFromMemoryInNativeFormat(IntPtr pointerToDataStream)
{
byte *dataStream = (byte *)pointerToDataStream.ToPointer();
uint stringLen = NativePrimitiveDecoder.DecodeUnsigned(ref dataStream);
return(Encoding.UTF8.GetString(dataStream, checked ((int)stringLen)));
}
private static unsafe void InitializeStringTable()
{
int length = 0;
IntPtr strEETypePtr = GetModuleSection((int)ModuleSectionIds.StringEETypePtr, out length);
Contract.Assert(length == IntPtr.Size);
IntPtr strTableStart = GetModuleSection((int)ModuleSectionIds.StringFixupStart, out length);
Contract.Assert(length % IntPtr.Size == 0);
IntPtr strTableEnd = (IntPtr)((byte *)strTableStart + length);
for (IntPtr *tab = (IntPtr *)strTableStart; tab < (IntPtr *)strTableEnd; tab++)
{
byte *bytes = (byte *)*tab;
int len = (int)NativePrimitiveDecoder.DecodeUnsigned(ref bytes);
int count = LowLevelUTF8Encoding.GetCharCount(bytes, len);
Contract.Assert(count >= 0);
string newStr = RuntimeImports.RhNewArrayAsString(new EETypePtr(strEETypePtr), count);
fixed(char *dest = newStr)
{
int newCount = LowLevelUTF8Encoding.GetChars(bytes, len, dest, count);
Contract.Assert(newCount == count);
}
GCHandle handle = GCHandle.Alloc(newStr);
* tab = (IntPtr)handle;
}
}
internal OptionalFieldsRuntimeBuilder(byte *pInitializeFromOptionalFields = null)
{
if (pInitializeFromOptionalFields == null)
{
return;
}
bool isLastField = false;
while (!isLastField)
{
byte fieldHeader = NativePrimitiveDecoder.ReadUInt8(ref pInitializeFromOptionalFields);
isLastField = (fieldHeader & 0x80) != 0;
EETypeOptionalFieldTag eCurrentTag = (EETypeOptionalFieldTag)(fieldHeader & 0x7f);
UInt32 uiCurrentValue = NativePrimitiveDecoder.DecodeUnsigned(ref pInitializeFromOptionalFields);
_rgFields[(int)eCurrentTag].m_fPresent = true;
_rgFields[(int)eCurrentTag].m_uiValue = uiCurrentValue;
}
}
private static unsafe void InitializeStringTable(IntPtr stringTableStart, int length)
{
IntPtr stringTableEnd = (IntPtr)((byte *)stringTableStart + length);
for (IntPtr *tab = (IntPtr *)stringTableStart; tab < (IntPtr *)stringTableEnd; tab++)
{
byte *bytes = (byte *)*tab;
int len = (int)NativePrimitiveDecoder.DecodeUnsigned(ref bytes);
int count = LowLevelUTF8Encoding.GetCharCount(bytes, len);
Contract.Assert(count >= 0);
string newStr = RuntimeImports.RhNewArrayAsString(EETypePtr.EETypePtrOf <string>(), count);
fixed(char *dest = newStr)
{
int newCount = LowLevelUTF8Encoding.GetChars(bytes, len, dest, count);
Contract.Assert(newCount == count);
}
GCHandle handle = GCHandle.Alloc(newStr);
* tab = (IntPtr)handle;
}
}
