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ReadOnlyIndexedProperty.cs
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30 lines (27 loc) · 1.03 KB
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namespace BytecodeApi;
/// <summary>
/// Provides an indexed property that exposes a getter.
/// </summary>
/// <typeparam name="TIndex">The type of the index of the property.</typeparam>
/// <typeparam name="TValue">The return type of the property when accessed through the index.</typeparam>
public sealed class ReadOnlyIndexedProperty<TIndex, TValue>
{
private readonly Func<TIndex, TValue> Getter;
/// <summary>
/// Gets this property.
/// </summary>
/// <param name="index">The index to access this property.</param>
/// <returns>
/// The value returned by the getter of this property.
/// </returns>
public TValue this[TIndex index] => Getter(index);
/// <summary>
/// Initializes a new instance of the <see cref="ReadOnlyIndexedProperty{TIndex, TValue}" /> class.
/// </summary>
/// <param name="getter">The getter delegate that is called when this property is accessed.</param>
public ReadOnlyIndexedProperty(Func<TIndex, TValue> getter)
{
Check.ArgumentNull(getter);
Getter = getter;
}
}