/// <summary>
/// Returns the name of the type as specified by the TypeHandle. Note this returns the name as specified by the
/// metadata, NOT as you would expect to see it in a C# program. For example, generics are denoted with a ` and
/// the number of params. Thus a Dictionary (with two type params) would look like:
/// System.Collections.Generics.Dictionary`2
/// </summary>
/// <param name="id">The TypeHandle to get the name of.</param>
/// <returns>The name of the type, or null on error.</returns>
internal string GetTypeName(TypeHandle id)
{
if (id.MethodTable == FreeMethodTable)
{
return("Free");
}
if (id.MethodTable == ArrayMethodTable && id.ComponentMethodTable != 0)
{
string name = GetNameForMT(id.ComponentMethodTable);
if (name != null)
{
return(name + "[]");
}
}
return(GetNameForMT(id.MethodTable));
}
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);
}