42 lines
1.3 KiB
C#
42 lines
1.3 KiB
C#
namespace DevDisciples.Parsing;
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public class VisitorContainer
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{
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private Dictionary<Type, Visitor.Visit> Visitors { get; } = new();
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private Visitor.Visit Default { get; set; } = default!;
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public void Register<TVisitee>(Visitor.Visit visitor)
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{
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Visitors[typeof(TVisitee)] = visitor;
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}
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public Visitor.Visit this[Type type] => Visitors.GetValueOrDefault(type, Default);
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}
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public class VisitorContainer<T>
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{
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protected Dictionary<Type, Visitor.Visit<T>> Visitors { get; } = new();
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public Visitor.Visit<T> Default { get; set; } = default!;
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public VisitorContainer<T> Register<TVisitee>(Visitor.Visit<T> visitor)
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{
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Visitors[typeof(TVisitee)] = visitor;
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return this;
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}
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public Visitor.Visit<T> this[Type type] => Visitors.ContainsKey(type) ? Visitors[type] : Default;
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}
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public class VisitorContainer<TIn, TOut>
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{
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protected Dictionary<Type, Visitor.Visit<TIn, TOut>> Visitors { get; } = new();
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public Visitor.Visit<TIn, TOut> Default { get; set; } = default!;
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public void Register<TVisitee>(Visitor.Visit<TIn, TOut> visitor)
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{
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Visitors[typeof(TVisitee)] = visitor;
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}
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public Visitor.Visit<TIn, TOut> this[Type type] => Visitors.ContainsKey(type) ? Visitors[type] : Default;
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} |