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ScriptCore: Properly use nullable

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This commit is contained in:
Simon Lübeß
2024-01-12 00:17:40 +01:00
parent 3d0c010139
commit 55b4be05c2
6 changed files with 109 additions and 76 deletions
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ScriptCore/Editor/EntityEditor.cs
+76 -48
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@@ -23,7 +23,7 @@ internal class EntityEditor
{
public static readonly DidNotChange DidNotChange = new DidNotChange();
private delegate object? ShowCustomEditorMethod(object reference, Type fieldType, string fieldName);
private delegate object? ShowCustomEditorMethod(object? reference, Type fieldType, string fieldName);
private static Dictionary<Type, ShowCustomEditorMethod> _customEditors = new();
@@ -51,7 +51,7 @@ internal class EntityEditor
}
}
private static bool TryShowCustomEditor(object reference, Type fieldType, string fieldName, out object? editedValue)
private static bool TryShowCustomEditor(object? reference, Type fieldType, string fieldName, out object? editedValue)
{
editedValue = DidNotChange;
@@ -332,11 +332,11 @@ internal class EntityEditor
return newValue;
}
private static object ShowEnumEditor(object reference, Type fieldType, string fieldName)
private static object ShowEnumEditor(object? reference, Type fieldType, string fieldName)
{
object newValue = DidNotChange;
if (ImGui.BeginCombo(fieldName, reference.ToString()))
if (ImGui.BeginCombo(fieldName, reference?.ToString()))
{
foreach (object enumValue in Enum.GetValues(fieldType))
{
@@ -352,13 +352,13 @@ internal class EntityEditor
return newValue;
}
public static object ShowFieldEditor(object reference, Type fieldType, string fieldName, IEnumerable<Attribute>? attributes = null)
public static object? ShowFieldEditor(object? reference, Type fieldType, string fieldName, IEnumerable<Attribute>? attributes = null)
{
ReadonlyAttribute readonlyAttribute = GetAttribute<ReadonlyAttribute>(attributes);
ReadonlyAttribute? readonlyAttribute = GetAttribute<ReadonlyAttribute>(attributes);
ImGui.BeginDisabled(readonlyAttribute != null);
object? newValue = DidNotChange;
object? newValue;
if (TryShowCustomEditor(reference, fieldType, fieldName, out newValue))
{
@@ -396,7 +396,7 @@ internal class EntityEditor
}
else if (fieldType == typeof(bool2))
{
bool2 value = (bool2)reference;
bool2 value = (bool2)reference!;
ImGui.TextUnformatted(fieldName);
@@ -496,14 +496,14 @@ internal class EntityEditor
return newValue;
}
private static object ShowComponentDropTarget(string fieldName, Type fieldType, object currentValue)
private static object? ShowComponentDropTarget(string fieldName, Type fieldType, object? currentValue)
{
object newValue = DidNotChange;
object? newValue = DidNotChange;
ImGui.Text($"{fieldName}: ");
ImGui.SameLine();
Component component = currentValue as Component;
Component? component = currentValue as Component;
string entityName = "None";
@@ -512,7 +512,7 @@ internal class EntityEditor
entityName = component.Entity.Name;
}
Type actualType = component?.GetType();
Type? actualType = component?.GetType();
entityName += $" ({(actualType ?? fieldType).Name})";
@@ -570,23 +570,23 @@ internal class EntityEditor
return newValue;
}
private static object ShowEntityDropTarget(string fieldName, Type fieldType, object currentValue)
private static object? ShowEntityDropTarget(string fieldName, Type fieldType, object? currentValue)
{
object newValue = DidNotChange;
object? newValue = DidNotChange;
ImGui.Text($"{fieldName}: ");
ImGui.SameLine();
string entityName = "None";
Entity entity = currentValue as Entity;
Entity? entity = currentValue as Entity;
if (entity != null)
{
entityName = entity.Name;
}
Type actualType = entity?.GetType();
Type? actualType = entity?.GetType();
entityName += $" ({(actualType ?? fieldType).Name})";
@@ -620,7 +620,7 @@ internal class EntityEditor
}
else
{
Entity scriptInstance = Entity.GetScriptReference(draggedId, typeof(Entity));
Entity? scriptInstance = Entity.GetScriptReference(draggedId, typeof(Entity));
allowDrop = fieldType.IsInstanceOfType(scriptInstance);
}
@@ -661,11 +661,11 @@ internal class EntityEditor
return newValue;
}
private static object ShowStringEditor(object reference, Type fieldType, string fieldName, IEnumerable<Attribute> attributes)
private static object ShowStringEditor(object? reference, Type fieldType, string fieldName, IEnumerable<Attribute>? attributes)
{
object newValue = DidNotChange;
TextFieldAttribute textField = GetAttribute<TextFieldAttribute>(attributes);
TextFieldAttribute? textField = GetAttribute<TextFieldAttribute>(attributes);
string value = reference as string ?? $"{float.MinValue}";
@@ -684,7 +684,7 @@ internal class EntityEditor
return newValue;
}
public static void ShowEditor(Type type, object reference)
public static void ShowEditor(Type type, object? reference)
{
int i = 0;
@@ -700,7 +700,7 @@ internal class EntityEditor
IEnumerable<Attribute> attributes = field.GetCustomAttributes();
object newValue = ShowFieldEditor(value, value?.GetType() ?? field.FieldType, field.Name, attributes);
object? newValue = ShowFieldEditor(value, value?.GetType() ?? field.FieldType, field.Name, attributes);
if (newValue != DidNotChange)
{
@@ -748,12 +748,14 @@ internal class EntityEditor
public int Element;
}
private static object ShowListEditor(Type fieldType, object fieldValue, string fieldName)
private static object? ShowListEditor(Type fieldType, object? fieldValue, string fieldName)
{
Type elementType = fieldType.GenericTypeArguments[0];
void AddElement(IList list, ref object newList)
void AddElement(IList? list, out object? newList)
{
newList = DidNotChange;
if (list == null)
{
newList = Activator.CreateInstance(fieldType);
@@ -762,36 +764,50 @@ internal class EntityEditor
Debug.Assert(list != null);
}
object newElement = ActivatorExtension.CreateInstanceSafe(elementType);
list.Add(newElement);
object? newElement = ActivatorExtension.CreateInstanceSafe(elementType);
list?.Add(newElement);
}
void RemoveElement(IList list, ref object newList)
void RemoveElement(IList? list, out object? newList)
{
list.RemoveAt(list.Count - 1);
newList = DidNotChange;
if (list == null)
return;
if (list.Count == 0)
{
newList = null;
}
else
{
list.RemoveAt(list.Count - 1);
}
}
return ShowGenericListEditor(fieldType, elementType, (IEnumerable)fieldValue, fieldName,
return ShowGenericListEditor(fieldType, elementType, (IEnumerable?)fieldValue, fieldName,
AddElement, RemoveElement);
}
private static object ShowArrayEditor(Type fieldType, object fieldValue, string fieldName)
private static object? ShowArrayEditor(Type fieldType, object? fieldValue, string fieldName)
{
Debug.Assert(fieldType.IsArray);
Type elementType = fieldType.GetElementType();
Type? elementType = fieldType.GetElementType();
Debug.Assert(elementType != null);
Array myArray = fieldValue as Array;
Array? myArray = fieldValue as Array;
if (myArray?.Rank > 1)
{
throw new NotImplementedException("Multidimensional arrays are not yet supported.");
}
void AddElement(IList list, ref object newList)
void AddElement(IList? list, out object? newList)
{
newList = DidNotChange;
int newIndex = 0;
if (list == null)
@@ -812,25 +828,37 @@ internal class EntityEditor
((IList)newList)[newIndex] = newElement;
}
void RemoveElement(IList list, ref object newList)
void RemoveElement(IList? list, out object? newList)
{
Array newArray = Array.CreateInstance(elementType, list.Count - 1);
Array.Copy((Array)list, newArray, newArray.Length);
newList = DidNotChange;
newList = newArray;
if (list == null)
return;
if (list.Count == 0)
{
newList = null;
}
else
{
Array newArray = Array.CreateInstance(elementType, list.Count - 1);
Array.Copy((Array)list, newArray, newArray.Length);
newList = newArray;
}
}
return ShowGenericListEditor(fieldType, elementType, (IEnumerable)fieldValue, fieldName,
return ShowGenericListEditor(fieldType, elementType!, (IEnumerable?)fieldValue, fieldName,
AddElement, RemoveElement);
}
public delegate void ModifyList(IList currentList, ref object oldList);
public delegate void ModifyList(IList? currentList, out object? oldList);
private static object ShowGenericListEditor(Type listType, Type elementType, IEnumerable list, string fieldName,
private static object? ShowGenericListEditor(Type listType, Type elementType, IEnumerable? list, string fieldName,
ModifyList addElement, ModifyList removeElement)
{
object newList = DidNotChange;
IList myList = list as IList;
object? newList = DidNotChange;
IList? myList = list as IList;
// The buttons should always be visible -> save whether the node is open
// If we have no instance, the user shouldn't be able to open the list
@@ -847,7 +875,7 @@ internal class EntityEditor
if (ImGui.SmallButton("+"))
{
addElement(myList, ref newList);
addElement(myList, out newList);
}
ImGuiExtension.AttachTooltip("Add a new Element at the end of the list.");
@@ -858,7 +886,7 @@ internal class EntityEditor
if (ImGui.SmallButton("-"))
{
removeElement(myList, ref newList);
removeElement(myList, out newList);
}
ImGuiExtension.AttachTooltip("Remove the last Element from the list.");
@@ -869,7 +897,7 @@ internal class EntityEditor
{
Debug.Assert(myList != null, "Opened tree node even though it should have been a leaf!");
/// Returns true if something was dropped into the droptarget
// Returns true if something was dropped into the droptarget
bool DropTarget(int insertIndex, string tooltip)
{
bool dropped = false;
@@ -887,7 +915,7 @@ internal class EntityEditor
ref ListPayload payload = ref Unsafe.AsRef<ListPayload>((void*)payloadPtr.Data);
// Make sure the index is still correct
if (payload.Element < myList.Count)
if (payload.Element < myList!.Count)
{
object item = myList[payload.Element];
@@ -917,7 +945,7 @@ internal class EntityEditor
bool orderChanged = false;
for (int i = 0, id = 0; i < myList.Count; i++, id++)
for (int i = 0, id = 0; i < myList!.Count; i++, id++)
{
ImGui.PushID(id);
@@ -957,7 +985,7 @@ internal class EntityEditor
ImGui.SameLine();
object newValue = ShowFieldEditor(element, element?.GetType() ?? elementType, $"Element {i}");
object? newValue = ShowFieldEditor(element, element?.GetType() ?? elementType, $"Element {i}");
// Don't apply changes, when the order changed
if (newValue != DidNotChange && !orderChanged)
@@ -981,7 +1009,7 @@ internal class EntityEditor
private static T ReadStaticField<T>(string name)
{
FieldInfo field = typeof(T).GetField(name, BindingFlags.Public | BindingFlags.Static);
FieldInfo? field = typeof(T).GetField(name, BindingFlags.Public | BindingFlags.Static);
if (field == null)
{