78 lines
2.1 KiB
C#
78 lines
2.1 KiB
C#
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using System;
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namespace Unity.VisualScripting
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{
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/// <summary>
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/// Creates a struct with its default initializer.
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/// </summary>
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[SpecialUnit]
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public sealed class CreateStruct : Unit
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{
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[Obsolete(Serialization.ConstructorWarning)]
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public CreateStruct() : base() { }
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public CreateStruct(Type type) : base()
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{
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Ensure.That(nameof(type)).IsNotNull(type);
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if (!type.IsStruct())
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{
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throw new ArgumentException($"Type {type} must be a struct.", nameof(type));
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}
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this.type = type;
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}
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[Serialize]
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public Type type { get; internal set; }
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// Shouldn't happen through normal use, but can happen
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// if deserialization fails to find the type
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// https://support.ludiq.io/communities/5/topics/1661-x
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public override bool canDefine => type != null;
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/// <summary>
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/// The entry point to create the struct. You can
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/// still get the return value without connecting this port.
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/// </summary>
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[DoNotSerialize]
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[PortLabelHidden]
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public ControlInput enter { get; private set; }
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/// <summary>
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/// The action to call once the struct has been created.
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/// </summary>
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[DoNotSerialize]
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[PortLabelHidden]
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public ControlOutput exit { get; private set; }
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/// <summary>
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/// The created struct.
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/// </summary>
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[DoNotSerialize]
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[PortLabelHidden]
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public ValueOutput output { get; private set; }
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protected override void Definition()
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{
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enter = ControlInput(nameof(enter), Enter);
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exit = ControlOutput(nameof(exit));
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output = ValueOutput(type, nameof(output), Create);
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Succession(enter, exit);
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}
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private ControlOutput Enter(Flow flow)
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{
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flow.SetValue(output, Activator.CreateInstance(type));
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return exit;
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}
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private object Create(Flow flow)
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{
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return Activator.CreateInstance(type);
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}
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}
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}
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