private bool SkipFunkyAndCustomModifiers()
{
SigParser sigTemp = new SigParser(this);
if (!sigTemp.SkipAnyVASentinel())
{
return(false);
}
byte bElementType = 0;
if (!sigTemp.PeekByte(out bElementType))
{
return(false);
}
while (ELEMENT_TYPE_CMOD_REQD == bElementType ||
ELEMENT_TYPE_CMOD_OPT == bElementType ||
ELEMENT_TYPE_MODIFIER == bElementType ||
ELEMENT_TYPE_PINNED == bElementType)
{
sigTemp.SkipBytes(1);
int token;
if (!sigTemp.GetToken(out token))
{
return(false);
}
if (!sigTemp.PeekByte(out bElementType))
{
return(false);
}
}
// Following custom modifiers must be an element type value which is less than ELEMENT_TYPE_MAX, or one of the other element types
// that we support while parsing various signatures
if (bElementType >= ELEMENT_TYPE_MAX)
{
switch (bElementType)
{
case ELEMENT_TYPE_PINNED:
break;
default:
return(false);
}
}
CopyFrom(sigTemp);
return(true);
}// SkipFunkyAndCustomModifiers
private bool GetElemTypeSlow(out int etype)
{
SigParser sigTemp = new SigParser(this);
if (sigTemp.SkipCustomModifiers())
{
if (sigTemp.GetByte(out byte elemType))
{
etype = elemType;
CopyFrom(sigTemp);
return(true);
}
}
etype = 0;
return(false);
}
private void InitEnumData()
{
if (!IsEnum)
throw new InvalidOperationException("Type is not an Enum.");
_enumData = new EnumData();
ICorDebug.IMetadataImport import = null;
if (DesktopModule != null)
import = DesktopModule.GetMetadataImport();
if (import == null)
{
_enumData = new EnumData();
return;
}
IntPtr hnd = IntPtr.Zero;
int tokens;
List<string> names = new List<string>();
int[] fields = new int[64];
do
{
int res = import.EnumFields(ref hnd, (int)_token, fields, fields.Length, out tokens);
for (int i = 0; i < tokens; ++i)
{
FieldAttributes attr;
int mdTypeDef, pchField, pcbSigBlob, pdwCPlusTypeFlag, pcchValue;
IntPtr ppvSigBlob, ppValue = IntPtr.Zero;
StringBuilder builder = new StringBuilder(256);
res = import.GetFieldProps(fields[i], out mdTypeDef, builder, builder.Capacity, out pchField, out attr, out ppvSigBlob, out pcbSigBlob, out pdwCPlusTypeFlag, out ppValue, out pcchValue);
if ((int)attr == 0x606 && builder.ToString() == "value__")
{
SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob);
int sigType, elemType;
if (parser.GetCallingConvInfo(out sigType) && parser.GetElemType(out elemType))
_enumData.ElementType = (ClrElementType)elemType;
}
// public, static, literal, has default
int intAttr = (int)attr;
if ((int)attr == 0x8056)
{
string name = builder.ToString();
names.Add(name);
int ccinfo;
SigParser parser = new SigParser(ppvSigBlob, pcbSigBlob);
parser.GetCallingConvInfo(out ccinfo);
int elemType;
parser.GetElemType(out elemType);
Type type = ClrRuntime.GetTypeForElementType((ClrElementType)pdwCPlusTypeFlag);
if (type != null)
{
object o = System.Runtime.InteropServices.Marshal.PtrToStructure(ppValue, type);
_enumData.NameToValue[name] = o;
_enumData.ValueToName[o] = name;
}
}
}
} while (fields.Length == tokens);
import.CloseEnum(hnd);
}
private void CopyFrom(SigParser rhs)
{
_sig = rhs._sig;
_len = rhs._len;
_offs = rhs._offs;
}
private bool SkipFunkyAndCustomModifiers()
{
SigParser sigTemp = new SigParser(this);
if (!sigTemp.SkipAnyVASentinel())
return false;
byte bElementType = 0;
if (!sigTemp.PeekByte(out bElementType))
return false;
while (ELEMENT_TYPE_CMOD_REQD == bElementType ||
ELEMENT_TYPE_CMOD_OPT == bElementType ||
ELEMENT_TYPE_MODIFIER == bElementType ||
ELEMENT_TYPE_PINNED == bElementType)
{
sigTemp.SkipBytes(1);
int token;
if (!sigTemp.GetToken(out token))
return false;
if (!sigTemp.PeekByte(out bElementType))
return false;
}
// Following custom modifiers must be an element type value which is less than ELEMENT_TYPE_MAX, or one of the other element types
// that we support while parsing various signatures
if (bElementType >= ELEMENT_TYPE_MAX)
{
switch (bElementType)
{
case ELEMENT_TYPE_PINNED:
break;
default:
return false;
}
}
CopyFrom(sigTemp);
return true;
}// SkipFunkyAndCustomModifiers
public SigParser(SigParser rhs)
{
_sig = rhs._sig;
_len = rhs._len;
_offs = rhs._offs;
}
private bool PeekElemTypeSize(out int pSize)
{
pSize = 0;
SigParser sigTemp = new SigParser(this);
if (!sigTemp.SkipAnyVASentinel())
return false;
byte bElementType = 0;
if (!sigTemp.GetByte(out bElementType))
return false;
switch (bElementType)
{
case ELEMENT_TYPE_I8:
case ELEMENT_TYPE_U8:
case ELEMENT_TYPE_R8:
pSize = 8;
break;
case ELEMENT_TYPE_I4:
case ELEMENT_TYPE_U4:
case ELEMENT_TYPE_R4:
pSize = 4;
break;
case ELEMENT_TYPE_I2:
case ELEMENT_TYPE_U2:
case ELEMENT_TYPE_CHAR:
pSize = 2;
break;
case ELEMENT_TYPE_I1:
case ELEMENT_TYPE_U1:
case ELEMENT_TYPE_BOOLEAN:
pSize = 1;
break;
case ELEMENT_TYPE_I:
case ELEMENT_TYPE_U:
case ELEMENT_TYPE_STRING:
case ELEMENT_TYPE_PTR:
case ELEMENT_TYPE_BYREF:
case ELEMENT_TYPE_CLASS:
case ELEMENT_TYPE_OBJECT:
case ELEMENT_TYPE_FNPTR:
case ELEMENT_TYPE_TYPEDBYREF:
case ELEMENT_TYPE_ARRAY:
case ELEMENT_TYPE_SZARRAY:
pSize = IntPtr.Size;
break;
case ELEMENT_TYPE_VOID:
break;
case ELEMENT_TYPE_END:
case ELEMENT_TYPE_CMOD_REQD:
case ELEMENT_TYPE_CMOD_OPT:
case ELEMENT_TYPE_VALUETYPE:
Debug.Fail("Asked for the size of an element that doesn't have a size!");
return false;
default:
Debug.Fail("CorSigGetElementTypeSize given invalid signature to size!");
return false;
}
return true; ;
}
private bool PeekElemTypeSlow(out int etype)
{
SigParser sigTemp = new SigParser(this);
return sigTemp.GetElemType(out etype);
}
private bool GetElemTypeSlow(out int etype)
{
SigParser sigTemp = new SigParser(this);
if (sigTemp.SkipCustomModifiers())
{
byte elemType;
if (sigTemp.GetByte(out elemType))
{
etype = elemType;
this.CopyFrom(sigTemp);
return true;
}
}
etype = 0;
return false;
}
private void CopyFrom(SigParser rhs)
{
_sig = rhs._sig;
_len = rhs._len;
_offs = rhs._offs;
}
public SigParser(SigParser rhs)
{
_sig = rhs._sig;
_len = rhs._len;
_offs = rhs._offs;
}
private bool PeekElemTypeSize(out int pSize)
{
pSize = 0;
SigParser sigTemp = new SigParser(this);
if (!sigTemp.SkipAnyVASentinel())
{
return(false);
}
if (!sigTemp.GetByte(out byte bElementType))
{
return(false);
}
switch (bElementType)
{
case ELEMENT_TYPE_I8:
case ELEMENT_TYPE_U8:
case ELEMENT_TYPE_R8:
pSize = 8;
break;
case ELEMENT_TYPE_I4:
case ELEMENT_TYPE_U4:
case ELEMENT_TYPE_R4:
pSize = 4;
break;
case ELEMENT_TYPE_I2:
case ELEMENT_TYPE_U2:
case ELEMENT_TYPE_CHAR:
pSize = 2;
break;
case ELEMENT_TYPE_I1:
case ELEMENT_TYPE_U1:
case ELEMENT_TYPE_BOOLEAN:
pSize = 1;
break;
case ELEMENT_TYPE_I:
case ELEMENT_TYPE_U:
case ELEMENT_TYPE_STRING:
case ELEMENT_TYPE_PTR:
case ELEMENT_TYPE_BYREF:
case ELEMENT_TYPE_CLASS:
case ELEMENT_TYPE_OBJECT:
case ELEMENT_TYPE_FNPTR:
case ELEMENT_TYPE_TYPEDBYREF:
case ELEMENT_TYPE_ARRAY:
case ELEMENT_TYPE_SZARRAY:
pSize = IntPtr.Size;
break;
case ELEMENT_TYPE_VOID:
break;
case ELEMENT_TYPE_END:
case ELEMENT_TYPE_CMOD_REQD:
case ELEMENT_TYPE_CMOD_OPT:
case ELEMENT_TYPE_VALUETYPE:
Debug.Fail("Asked for the size of an element that doesn't have a size!");
return(false);
default:
Debug.Fail("CorSigGetElementTypeSize given invalid signature to size!");
return(false);
}
return(true);
;
}
private bool PeekElemTypeSlow(out int etype)
{
SigParser sigTemp = new SigParser(this);
return(sigTemp.GetElemType(out etype));
}
public DesktopInstanceField(DesktopGCHeap heap, IFieldData data, string name, FieldAttributes attributes, IntPtr sig, int sigLen)
{
_name = name;
_field = data;
_attributes = attributes;
ulong mt = data.TypeMethodTable;
if (mt != 0)
_type = (BaseDesktopHeapType)heap.GetTypeByTypeHandle(mt, 0);
if (_type == null)
{
if (sig != IntPtr.Zero && sigLen > 0)
{
SigParser sigParser = new SigParser(sig, sigLen);
bool res;
int sigType, etype = 0;
if (res = sigParser.GetCallingConvInfo(out sigType))
Debug.Assert(sigType == SigParser.IMAGE_CEE_CS_CALLCONV_FIELD);
res = res && sigParser.SkipCustomModifiers();
res = res && sigParser.GetElemType(out etype);
if (res)
{
ClrElementType type = (ClrElementType)etype;
if (type == ClrElementType.Array)
{
res = sigParser.PeekElemType(out etype);
res = res && sigParser.SkipExactlyOne();
int ranks = 0;
res = res && sigParser.GetData(out ranks);
if (res)
_type = heap.GetArrayType((ClrElementType)etype, ranks, null);
}
else if (type == ClrElementType.SZArray)
{
res = sigParser.PeekElemType(out etype);
type = (ClrElementType)etype;
if (DesktopRuntimeBase.IsObjectReference(type))
_type = (BaseDesktopHeapType)heap.GetBasicType(ClrElementType.SZArray);
else
_type = (BaseDesktopHeapType)heap.GetArrayType(type, -1, null);
}
else if (type == ClrElementType.Pointer)
{
// Only deal with single pointers for now and types that have already been constructed
res = sigParser.GetElemType(out etype);
type = (ClrElementType)etype;
int token;
sigParser.GetToken(out token);
BaseDesktopHeapType innerType = (BaseDesktopHeapType)heap.GetGCHeapTypeFromModuleAndToken(data.Module, Convert.ToUInt32(token));
if (innerType == null)
{
innerType = (BaseDesktopHeapType)heap.GetBasicType(type);
}
_type = heap.CreatePointerType(innerType, type, null);
}
}
}
if (_type == null)
_type = (BaseDesktopHeapType)heap.GetBasicType(ElementType);
}
else if (ElementType != ClrElementType.Class)
{
_type.ElementType = ElementType;
}
}
