47 lines
1.8 KiB
C#
47 lines
1.8 KiB
C#
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using System;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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namespace Swan.Reflection
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{
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/// <summary>
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/// Represents a generic class to store getters and setters.
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/// </summary>
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/// <typeparam name="TClass">The type of the class.</typeparam>
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/// <typeparam name="TProperty">The type of the property.</typeparam>
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/// <seealso cref="IPropertyProxy" />
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public sealed class PropertyProxy<TClass, TProperty> : IPropertyProxy
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where TClass : class
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{
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private readonly Func<TClass, TProperty> _getter;
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private readonly Action<TClass, TProperty> _setter;
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/// <summary>
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/// Initializes a new instance of the <see cref="PropertyProxy{TClass, TProperty}"/> class.
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/// </summary>
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/// <param name="property">The property.</param>
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public PropertyProxy(PropertyInfo property)
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{
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if (property == null)
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throw new ArgumentNullException(nameof(property));
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var getterInfo = property.GetGetMethod(false);
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if (getterInfo != null)
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_getter = (Func<TClass, TProperty>)Delegate.CreateDelegate(typeof(Func<TClass, TProperty>), getterInfo);
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var setterInfo = property.GetSetMethod(false);
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if (setterInfo != null)
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_setter = (Action<TClass, TProperty>)Delegate.CreateDelegate(typeof(Action<TClass, TProperty>), setterInfo);
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}
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/// <inheritdoc />
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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object IPropertyProxy.GetValue(object instance) =>
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_getter(instance as TClass);
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/// <inheritdoc />
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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void IPropertyProxy.SetValue(object instance, object value) =>
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_setter(instance as TClass, (TProperty)value);
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}
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}
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