//-----------------------------------------------------------------------------------------------------------------------------------------------------
private static bool IsNullableValueType(System.Reflection.TypeInfo typeInfo, out Type underlyingValueType)
{
if (typeInfo.IsGenericType &&
!typeInfo.IsGenericTypeDefinition &&
typeInfo.GetGenericTypeDefinition() == typeof(Nullable <>))
{
underlyingValueType = typeInfo.GetGenericArguments()[0];
return(true);
}
underlyingValueType = null;
return(false);
}
public void TestExpressionExtensions()
{
MyTestClass testClass = new MyTestClass();
//Todo ... show how to allow to TypedReference use inside the body
System.TypedReference member = __makeref(testClass.Test);
System.Type type = typeof(System.Reflection.PropertyInfo);
System.Reflection.MethodInfo setter = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.LoadSetter(() => testClass.Test.Equals(null));
System.Console.WriteLine("setter Name: " + setter.Name);
System.Console.WriteLine(".Test => " + testClass.Test);
setter.Invoke(testClass, new[] { "Test" });
if (false == (string.Compare(testClass.Test, "Test") == 0))
{
throw new System.Exception("Did not invoke setter");
}
System.Console.WriteLine(".Test => " + testClass.Test);
testClass = new MyTestClass <int>();
MyTestClass <int> casted = testClass as MyTestClass <int>;
System.Console.WriteLine("<int>.Test => " + testClass.Test);
setter.Invoke(testClass, new[] { "Test" });
if (false == (string.Compare(testClass.Test, "Test") == 0))
{
throw new System.Exception("Did not invoke setter");
}
System.Console.WriteLine(".Test => " + testClass.Test);
System.Console.WriteLine("<int>.Test => " + ((MyTestClass <int>)testClass).Test);
System.Console.WriteLine("<int>.Property => " + ((MyTestClass <int>)testClass).Property);
setter = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.LoadSetter(() => ((MyTestClass <int>)testClass).Property.Equals(null));
System.Console.WriteLine("setter Name: " + setter.Name);
setter.Invoke(testClass, new object[] { 1 });
if (false == (casted.Property == 1))
{
throw new System.Exception("Did not invoke setter");
}
System.Console.WriteLine("<int>.Property => " + ((MyTestClass <int>)testClass).Property);
System.Console.WriteLine("<int>.Property => " + casted.Property);
setter = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.LoadSetter(() => casted.AnotherProperty.Equals(null));
System.Console.WriteLine("<int>.AnotherProperty => " + ((MyTestClass <int>)testClass).AnotherProperty);
System.Console.WriteLine("<int>.AnotherProperty => " + casted.AnotherProperty);
setter.Invoke(testClass, new object[] { 2 });
if (false == (casted.AnotherProperty == 2))
{
throw new System.Exception("Did not invoke setter");
}
System.Console.WriteLine("<int>.AnotherProperty => " + ((MyTestClass <int>)testClass).AnotherProperty);
System.Console.WriteLine("<int>.AnotherProperty => " + casted.AnotherProperty);
System.Reflection.TypeInfo typeInfo = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.GetTypeInfo(() => new MyTestClass <int>());
if (typeInfo.GetGenericArguments()[0] != typeof(int))
{
throw new System.Exception("Not correct type");
}
System.Console.WriteLine("TypeInfo.Name " + typeInfo.Name);
System.Console.WriteLine("TypeInfo.MetadataToken " + typeInfo.MetadataToken);
if (typeInfo.GetGenericArguments()[0] != typeof(int))
{
throw new System.Exception("Not correct type");
}
typeInfo = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.GetTypeInfo(() => (typeof(MyTestClass <int>)).GetType());
if (typeInfo.GetGenericArguments()[0] != typeof(int))
{
throw new System.Exception("Not correct type");
}
System.Type unboundedType = typeof(MyTestClass <>);
typeInfo = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.GetTypeInfo(() => (unboundedType).GetType());
System.Console.WriteLine("TypeInfo.Name " + typeInfo.Name);
System.Console.WriteLine("TypeInfo.MetadataToken " + typeInfo.MetadataToken);
System.Reflection.MethodInfo methodInfo = Media.Common.Extensions.ExpressionExtensions.SymbolExtensions.GetMethodInfo(() => ((MyTestClass <int>)null).Method());
if (false.Equals(methodInfo.DeclaringType.Equals(typeof(MyTestClass <int>))))
{
throw new System.Exception("Not correct type");
}
System.Console.WriteLine("GetMethodInfo.Name " + methodInfo.Name);
System.Console.WriteLine("GetMethodInfo.MetadataToken " + methodInfo.MetadataToken);
}