public static string GetDisplayValue(this ClrInstanceField self, ClrValueClass clrObject)
{
if (self.IsObjectReference)
{
var obj = clrObject.GetObjectField(self.Name);
if (obj.IsNull)
{
return("null");
}
return($"0x{obj.Address:X} [{obj.Type.Name}:0x{obj.Type.MethodTable:X}]");
}
else if (self.HasSimpleValue)
{
return($"{self.GetValue(clrObject.Address)} [{self.Type.Name}]");
}
else if (self.IsValueClass)
{
var vt = clrObject.GetValueClassField(self.Name);
return($"0x{vt.Address:X} [struct {vt.Type.Name}:0x{vt.Type.MethodTable:X}]");
}
else
{
return("<unknown value>");
}
}
private static bool ExtractStruct(Pair p, ClrInstanceField field, ClrValueClass structClass, out object result)
{
result = null;
Type type;
if (!GetType(p, field.Type, out type))
{
return(false);
}
var fieldInfos = GetFields(type);
result = FormatterServices.GetUninitializedObject(type);
foreach (var fld in structClass.Type.Fields)
{
object value = null;
if (fld.Type.IsString)
{
value = structClass.GetStringField(fld.Name);
}
else if (fld.Type.IsPrimitive)
{
value = fld.GetValue(structClass.Address, true);
}
else if (fld.Type.IsValueClass)
{
if (!ExtractStruct(p, fld, structClass.GetValueClassField(fld.Name), out value))
{
continue;
}
}
else if (fld.Type.IsArray)
{
Array arr = null;
if (!ExtractArray(p, structClass.GetObjectField(fld.Name), fld, out arr))
{
continue;
}
value = arr;
}
else
{
if (!ExtractRefObject(p, field, structClass.GetObjectField(fld.Name), out value))
{
continue;
}
}
fieldInfos[fld.Name].SetValue(result, value);
}
return(true);
}
public void GetValueClassField_WhenFieldFound_ReturnsField(ClrValueClass target, [Frozen] ClrType structType, ClrValueClass someStruct, ClrInstanceField structValueField)
{
// Arrange
structValueField.IsValueClass.Returns(true);
structValueField.Type.Returns(target.Type);
structValueField.GetAddress(someStruct.Address, Arg.Any <bool>()).Returns(target.Address);
// Act
var structRefFieldTarget = someStruct.GetValueClassField(structValueField.Name);
// Assert
structRefFieldTarget.Equals(target).Should().BeTrue();
}
/// <summary> /// Gets the value class field. /// </summary> /// <param name="fieldName">Name of the field.</param> /// <returns>IClrValueClass.</returns> /// <inheritdoc /> public IClrValueClass GetValueClassField(string fieldName) => Converter.Convert(ValueClass.GetValueClassField(fieldName));