public static PropertyInfo GetProperty <T, TProperty>(this T x, Expression <Func <T, TProperty> > propertySelector, PropertyAccessOptions accessOptions = PropertyAccessOptions.Both)
{
if (x is null)
{
throw new ArgumentNullException(nameof(x));
}
if (propertySelector is null)
{
throw new ArgumentNullException(nameof(propertySelector));
}
return(TypeVisit.GetProperty(propertySelector, accessOptions));
}
public void ExtensionsSinglePropertyTest()
{
var type = typeof(NormalPropertyClass);
var members = type.GetMembers();
var property1 = members.Single(m => m.Name == nameof(NormalPropertyClass.PublicGetSet));
var property2 = members.Single(m => m.Name == nameof(NormalPropertyClass.PublicGet));
var property3 = members.Single(m => m.Name == nameof(NormalPropertyClass.PublicSet));
var x4 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGetSet);
var x5 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGetSet, PropertyAccessOptions.Getters);
var x6 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGetSet, PropertyAccessOptions.Setters);
x4.ShouldNotBeNull();
x5.ShouldNotBeNull();
x6.ShouldNotBeNull();
x4.ShouldBe(property1);
x5.ShouldBe(property1);
x6.ShouldBe(property1);
var x7 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGet);
var x8 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGet, PropertyAccessOptions.Getters);
Assert.Throws <ArgumentException>(() => TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicGet, PropertyAccessOptions.Setters));
x7.ShouldNotBeNull();
x8.ShouldNotBeNull();
x7.ShouldBe(property2);
x8.ShouldBe(property2);
var x9 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicSet);
var x10 = TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicSet, PropertyAccessOptions.Setters);
Assert.Throws <ArgumentException>(() => TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicSet, PropertyAccessOptions.Getters));
x9.ShouldNotBeNull();
x10.ShouldNotBeNull();
x9.ShouldBe(property3);
x10.ShouldBe(property3);
}
public void FieldErrTest()
{
Assert.Throws <ArgumentException>(() => TypeVisit.GetProperty <NormalPropertyClass, string>(t => t.PublicField));
}
