public DynamicPropertyAccessor GetAccessor(Type type, string propertyName)
{
DynamicPropertyAccessor accessor;
Dictionary <string, DynamicPropertyAccessor> typeCache;
if (this.m_cache.TryGetValue(type, out typeCache))
{
if (typeCache.TryGetValue(propertyName, out accessor))
{
return(accessor);
}
}
lock (m_mutex)
{
if (!this.m_cache.ContainsKey(type))
{
this.m_cache[type] = new Dictionary <string, DynamicPropertyAccessor>();
}
accessor = new DynamicPropertyAccessor(type, propertyName);
this.m_cache[type][propertyName] = accessor;
return(accessor);
}
}
public void GetValueTest()
{
var t = new Temp { Value = null };
PropertyInfo propertyInfo = t.GetType().GetProperty("Value");
Stopwatch watch1 = new Stopwatch();
watch1.Start();
for (var i = 0; i < 1000000; i++)
{
var value = propertyInfo.GetValue(t, null);
}
watch1.Stop();
Trace.WriteLine("Reflection: " + watch1.Elapsed);
DynamicPropertyAccessor property = new DynamicPropertyAccessor(t.GetType(), "Value");
Stopwatch watch2 = new Stopwatch();
watch2.Start();
for (var i = 0; i < 1000000; i++)
{
var value = property.GetValue(t);
}
watch2.Stop();
Trace.WriteLine("Lambda: " + watch2.Elapsed);
Stopwatch watch3 = new Stopwatch();
watch3.Start();
for (var i = 0; i < 1000000; i++)
{
var value = t.Value;
}
watch3.Stop();
Trace.WriteLine("Direct: " + watch3.Elapsed);
}
public DynamicPropertyAccessor GetAccessor(Type type, string propertyName)
{
DynamicPropertyAccessor accessor;
Dictionary<string, DynamicPropertyAccessor> typeCache;
if (this.m_cache.TryGetValue(type, out typeCache))
{
if (typeCache.TryGetValue(propertyName, out accessor))
{
return accessor;
}
}
lock (m_mutex)
{
if (!this.m_cache.ContainsKey(type))
{
this.m_cache[type] = new Dictionary<string, DynamicPropertyAccessor>();
}
accessor = new DynamicPropertyAccessor(type, propertyName);
this.m_cache[type][propertyName] = accessor;
return accessor;
}
}
public static object GetValue(object obj, string propertyName)
{
if (obj == null)
{
return(null);
}
Check.AssertNotNullOrEmpty(propertyName, "propertyName");
DynamicPropertyAccessor property = new DynamicPropertyAccessor(obj.GetType(), propertyName);
return(property.GetValue(obj));
}
public void SetValueTest()
{
int expected = 100;
var t = new Temp { Value = null };
PropertyInfo propertyInfo = t.GetType().GetProperty("Value");
Stopwatch watch1 = new Stopwatch();
watch1.Start();
for (var i = 0; i < 1000000; i++)
{
propertyInfo.SetValue(t, expected, null);
}
watch1.Stop();
Trace.WriteLine("Reflection: " + watch1.Elapsed);
Assert.AreEqual(expected, t.Value.Value);
t.Value = 555;
DynamicPropertyAccessor property = new DynamicPropertyAccessor(t.GetType(), "Value");
Stopwatch watch2 = new Stopwatch();
watch2.Start();
for (var i = 0; i < 1000000; i++)
{
property.SetValue(t,expected);
}
watch2.Stop();
Trace.WriteLine("Lambda: " + watch2.Elapsed);
Assert.AreEqual(expected, t.Value.Value);
t.Value = 555;
Stopwatch watch3 = new Stopwatch();
watch3.Start();
for (var i = 0; i < 1000000; i++)
{
t.Value = expected;
}
watch3.Stop();
Trace.WriteLine("Direct: " + watch3.Elapsed);
Assert.AreEqual(expected, t.Value.Value);
}
