internal override ClrType GetTypeByMethodTable(ulong mt, ulong cmt, ulong obj)
{
if (mt == 0)
{
return(null);
}
ClrType componentType = null;
if (mt == DesktopRuntime.ArrayMethodTable)
{
if (cmt != 0)
{
componentType = GetTypeByMethodTable(cmt, 0);
if (componentType != null)
{
cmt = componentType.MethodTable;
}
else if (obj != 0)
{
componentType = TryGetComponentType(obj, cmt);
if (componentType != null)
{
cmt = componentType.MethodTable;
}
}
}
else
{
componentType = ObjectType;
cmt = ObjectType.MethodTable;
}
}
else
{
cmt = 0;
}
TypeHandle hnd = new TypeHandle(mt, cmt);
ClrType ret = null;
// See if we already have the type.
if (_indices.TryGetValue(hnd, out int index))
{
ret = _types[index];
}
else if (mt == DesktopRuntime.ArrayMethodTable && cmt == 0)
{
// Handle the case where the methodtable is an array, but the component method table
// was not specified. (This happens with fields.) In this case, return System.Object[],
// with an ArrayComponentType set to System.Object.
uint token = DesktopRuntime.GetMetadataToken(mt);
if (token == 0xffffffff)
{
return(null);
}
ModuleEntry modEnt = new ModuleEntry(ArrayType.Module, token);
ret = ArrayType;
index = _types.Count;
_indices[hnd] = index;
_typeEntry[modEnt] = index;
_types.Add(ret);
Debug.Assert(_types[index] == ret);
}
else
{
// No, so we'll have to construct it.
ulong moduleAddr = DesktopRuntime.GetModuleForMT(hnd.MethodTable);
DesktopModule module = DesktopRuntime.GetModule(moduleAddr);
uint token = DesktopRuntime.GetMetadataToken(mt);
bool isFree = mt == DesktopRuntime.FreeMethodTable;
if (token == 0xffffffff && !isFree)
{
return(null);
}
// Dynamic functions/modules
uint tokenEnt = token;
if (!isFree && (module == null || module.IsDynamic))
{
tokenEnt = (uint)mt;
}
ModuleEntry modEnt = new ModuleEntry(module, tokenEnt);
if (ret == null)
{
IMethodTableData mtData = DesktopRuntime.GetMethodTableData(mt);
if (mtData == null)
{
return(null);
}
ret = new DesktopHeapType(() => GetTypeName(hnd, module, token), module, token, mt, mtData, this)
{
ComponentType = componentType
};
index = _types.Count;
((DesktopHeapType)ret).SetIndex(index);
_indices[hnd] = index;
_typeEntry[modEnt] = index;
_types.Add(ret);
Debug.Assert(_types[index] == ret);
}
}
if (obj != 0 && ret.ComponentType == null && ret.IsArray)
{
ret.ComponentType = TryGetComponentType(obj, cmt);
}
return(ret);
}
internal override ClrType GetTypeByMethodTable(ulong mt, ulong _, ulong obj)
{
if (mt == 0)
{
return(null);
}
ClrType ret = null;
// See if we already have the type.
if (_indices.TryGetValue(mt, out int index))
{
ret = _types[index];
}
else
{
// No, so we'll have to construct it.
ulong moduleAddr = DesktopRuntime.GetModuleForMT(mt);
DesktopModule module = DesktopRuntime.GetModule(moduleAddr);
uint token = DesktopRuntime.GetMetadataToken(mt);
bool isFree = mt == DesktopRuntime.FreeMethodTable;
if (token == 0xffffffff && !isFree)
{
return(null);
}
// Dynamic functions/modules
uint tokenEnt = token;
if (!isFree && (module == null || module.IsDynamic))
{
tokenEnt = unchecked ((uint)mt);
}
ModuleEntry modEnt = new ModuleEntry(module, tokenEnt);
if (ret == null)
{
IMethodTableData mtData = DesktopRuntime.GetMethodTableData(mt);
if (mtData == null)
{
return(null);
}
IMethodTableCollectibleData mtCollectibleData = DesktopRuntime.GetMethodTableCollectibleData(mt);
ret = new DesktopHeapType(() => GetTypeName(mt, module, token), module, token, mt, mtData, this, mtCollectibleData);
index = _types.Count;
_indices[mt] = index;
// Arrays share a common token, so it's not helpful to look them up here.
if (!ret.IsArray)
{
_typeEntry[modEnt] = index;
}
_types.Add(ret);
Debug.Assert(_types[index] == ret);
}
}
if (obj != 0 && ret.ComponentType == null && ret.IsArray)
{
ret.ComponentType = TryGetComponentType(obj, 0);
}
return(ret);
}