74 lines
2.9 KiB
C#
74 lines
2.9 KiB
C#
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using EpicGames.Core;
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using EpicGames.UHT.Types;
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using UnrealSharpScriptGenerator.PropertyTranslators;
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using UnrealSharpScriptGenerator.Utilities;
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namespace UnrealSharpScriptGenerator.Exporters;
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public enum GetterSetterMode
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{
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Get,
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Set
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}
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public class GetterSetterFunctionExporter : FunctionExporter
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{
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private readonly UhtProperty _propertyGetterSetter;
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private readonly GetterSetterMode _getterSetterMode;
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private string _outParameterName;
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public static GetterSetterFunctionExporter Create(UhtFunction function,
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UhtProperty propertyGetterSetter,
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GetterSetterMode getterSetterMode,
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EFunctionProtectionMode protectionMode)
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{
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GetterSetterFunctionExporter exporter = new GetterSetterFunctionExporter(function, propertyGetterSetter, getterSetterMode);
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exporter.Initialize(OverloadMode.SuppressOverloads, protectionMode, EBlueprintVisibility.GetterSetter);
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return exporter;
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}
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private GetterSetterFunctionExporter(UhtFunction function, UhtProperty propertyGetterSetter, GetterSetterMode getterSetterMode) : base(function)
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{
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_outParameterName = string.Empty;
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_propertyGetterSetter = propertyGetterSetter;
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_getterSetterMode = getterSetterMode;
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Initialize(OverloadMode.SuppressOverloads, EFunctionProtectionMode.OverrideWithInternal, EBlueprintVisibility.GetterSetter);
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}
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protected override string GetParameterName(UhtProperty parameter)
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{
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return _getterSetterMode == GetterSetterMode.Get ? _propertyGetterSetter.GetParameterName() : "value";
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}
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protected override string MakeOutMarshalDestination(UhtProperty parameter, PropertyTranslator propertyTranslator, GeneratorStringBuilder builder)
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{
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_outParameterName = GetParameterName(parameter) + "_Out";
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builder.AppendLine($"{propertyTranslator.GetManagedType(parameter)} {_outParameterName};");
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return _outParameterName;
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}
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protected override void ExportReturnStatement(GeneratorStringBuilder builder)
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{
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if (Function.ReturnProperty != null && Function.ReturnProperty.IsSameType(_propertyGetterSetter))
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{
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string castOperation = _propertyGetterSetter.HasAllFlags(EPropertyFlags.BlueprintReadOnly)
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? $"({ReturnValueTranslator!.GetManagedType(_propertyGetterSetter)})" : string.Empty;
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builder.AppendLine($"return {castOperation}returnValue;");
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}
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else if (Function.ReturnProperty != null)
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{
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// Types differ (e.g., getter returns FText, property bound as string). Still return and rely on
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// available implicit/user-defined conversions on the managed types (FText -> string, etc.).
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builder.AppendLine("return returnValue;");
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}
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if (string.IsNullOrEmpty(_outParameterName))
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{
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return;
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}
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builder.AppendLine($"return {_outParameterName};");
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}
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}
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