## Summary
Folds **113** hand-written `[SerializableProperty]` members into plain `[SerializableField]` declarations using the v4 setter hooks — value coercion/vetoes via `allowFieldChange`, post-change side effects via `fieldChanged` (whose `oldValue` parameter covers the old-house/old-sender unsubscribe patterns). Net **-450 lines** of setter boilerplate.
```cs
// before
[SerializableProperty(1)]
[CommandProperty(AccessLevel.GameMaster)]
public int Charges
{
get => _charges;
set
{
_charges = Math.Clamp(value, 0, MaxCharges);
InvalidateProperties();
this.MarkDirty();
}
}
// after
[SerializableField(1, allowFieldChange: nameof(AllowChargesChange))]
[SerializedCommandProperty(AccessLevel.GameMaster)]
[InvalidateProperties]
private int _charges;
private bool AllowChargesChange(ref int value)
{
value = Math.Clamp(value, 0, MaxCharges);
return true;
}
```
## How sites were selected
A classifier parsed all 204 `[SerializableProperty]` sites and converted only those matching strict shapes: getter is exactly `get => _field;`, the assignment comes first (after at most an equality guard), and relocated side effects contain no `return`, no `value` mutation, and no field re-assignment. Everything else was left alone deliberately:
- **~34 custom getters** (fallback defaults like `_x == -1 ? Default : _x`, self-healing refs) — no setter hook can express these.
- **~35 pre-assignment logic** (durability Unscale/Scale sandwiches, old-state captures like PotionKeg's pile weight).
- **virtual/override members, name-mismatched backing fields (`m_`), exotic semantics** (guards' `Focus` does work on *equal* assignment; `ChampionSpawn.Active` never assigns its field).
Five sites the classifier refused were converted by hand where the hooks fit cleanly: `ReceiverCrystal.Sender`, `PlayerVendor.House`, `PlayerBarkeeper.House` (old-value unsubscribe via `oldValue`), `BaseSuit.AccessLevel` (its existing virtual `OnAccessLevelChanged` already had the exact callback shape), and `DyeTub.DyedHue` (a true veto: `AllowDyedHueChange(ref int value) => _redyable`).
## Verification
- Build: **0 errors, 0 warnings**.
- **Schema regeneration produces zero Migrations changes** — the conversion is wire- and schema-neutral by construction (same orders, types, and property names), and CI's schema diff check enforces it.
- **835 + 708 tests green.**
## Behavioral notes (all strict improvements, called out for review)
- Generated setters skip everything when the incoming value equals the current one; a few converted setters previously re-ran side effects on equal assignment (redundant `Update()`-style refreshes).
- Generated setters always `MarkDirty()` on change; several converted setters never did (e.g. `DyeTub.DyedHue`, `MorphItem` ranges) — their changes only persisted if something else dirtied the entity. Those latent persistence bugs are fixed by construction.
161 lines
4.1 KiB
C#
161 lines
4.1 KiB
C#
using ModernUO.Serialization;
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namespace Server.Items;
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[SerializationGenerator(2, false)]
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[Flippable(0x1bdd, 0x1be0)]
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public partial class Log : Item, ICommodity, IAxe
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{
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[Constructible]
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public Log(int amount = 1) : this(CraftResource.RegularWood, amount)
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{
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}
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[Constructible]
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public Log(CraftResource resource) : this(resource, 1)
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{
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}
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[Constructible]
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public Log(CraftResource resource, int amount) : base(0x1BDD)
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{
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Stackable = true;
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Amount = amount;
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_resource = resource;
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Hue = CraftResources.GetHue(resource);
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}
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public override double DefaultWeight => 2.0;
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[SerializableField(0, fieldChanged: nameof(OnResourceChanged))]
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[SerializedCommandProperty(AccessLevel.GameMaster)]
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[InvalidateProperties]
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private CraftResource _resource;
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private void OnResourceChanged(CraftResource oldValue, CraftResource newValue)
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{
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Hue = CraftResources.GetHue(newValue);
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}
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public virtual bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 0, new Board());
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int ICommodity.DescriptionNumber => CraftResources.IsStandard(_resource)
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? LabelNumber
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: 1075062 + ((int)_resource - (int)CraftResource.RegularWood);
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bool ICommodity.IsDeedable => true;
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public override void GetProperties(IPropertyList list)
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{
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base.GetProperties(list);
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if (!CraftResources.IsStandard(_resource))
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{
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var num = CraftResources.GetLocalizationNumber(_resource);
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if (num > 0)
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{
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list.Add(num);
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}
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else
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{
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list.Add(CraftResources.GetName(_resource));
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}
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}
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}
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private void Deserialize(IGenericReader reader, int version)
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{
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_resource = version switch
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{
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1 => (CraftResource)reader.ReadInt(),
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_ => CraftResource.RegularWood
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};
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}
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public virtual bool TryCreateBoards(Mobile from, double skill, Item item)
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{
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if (Deleted || !from.CanSee(this))
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{
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return false;
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}
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if (from.Skills.Carpentry.Value < skill &&
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from.Skills.Lumberjacking.Value < skill)
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{
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item.Delete();
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from.SendLocalizedMessage(1072652); // You cannot work this strange and unusual wood.
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return false;
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}
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ScissorHelper(from, item, 1, false);
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return true;
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}
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}
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[SerializationGenerator(0, false)]
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public partial class HeartwoodLog : Log
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{
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[Constructible]
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public HeartwoodLog(int amount = 1) : base(CraftResource.Heartwood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 100, new HeartwoodBoard());
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}
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[SerializationGenerator(0, false)]
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public partial class BloodwoodLog : Log
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{
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[Constructible]
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public BloodwoodLog(int amount = 1) : base(CraftResource.Bloodwood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 100, new BloodwoodBoard());
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}
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[SerializationGenerator(0, false)]
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public partial class FrostwoodLog : Log
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{
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[Constructible]
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public FrostwoodLog(int amount = 1) : base(CraftResource.Frostwood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 100, new FrostwoodBoard());
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}
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[SerializationGenerator(0, false)]
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public partial class OakLog : Log
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{
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[Constructible]
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public OakLog(int amount = 1) : base(CraftResource.OakWood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 65, new OakBoard());
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}
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[SerializationGenerator(0, false)]
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public partial class AshLog : Log
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{
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[Constructible]
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public AshLog(int amount = 1) : base(CraftResource.AshWood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 80, new AshBoard());
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}
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[SerializationGenerator(0, false)]
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public partial class YewLog : Log
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{
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[Constructible]
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public YewLog(int amount = 1) : base(CraftResource.YewWood, amount)
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{
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}
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public override bool Axe(Mobile from, BaseAxe axe) => TryCreateBoards(from, 95, new YewBoard());
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}
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