public void CtorFieldInfo()
{
var fieldInfo = typeof(ComplexType).GetField(nameof(ComplexType.value));
var getterAndSetter = new GetterAndSetter<ComplexType, int>(fieldInfo);
var complexType = new ComplexType();
getterAndSetter.SetValue(complexType, 1);
Assert.AreEqual(1, complexType.Value);
Assert.AreEqual(1, getterAndSetter.GetValue(complexType));
}
public void CtorFieldInfo()
{
var fieldInfo = typeof(ComplexType).GetField(nameof(ComplexType.value));
var getterAndSetter = new GetterAndSetter <ComplexType, int>(fieldInfo);
var complexType = new ComplexType();
getterAndSetter.SetValue(complexType, 1);
Assert.AreEqual(1, complexType.Value);
Assert.AreEqual(1, getterAndSetter.GetValue(complexType));
}
public void CreateFromPropertyInfo()
{
var propertyInfo = typeof(ComplexType).GetProperty(nameof(ComplexType.Value));
var getterAndSetter = (GetterAndSetter <ComplexType, int>)GetterAndSetter.GetOrCreate(propertyInfo);
var complexType = new ComplexType();
getterAndSetter.SetValue(complexType, 1);
Assert.AreEqual(1, complexType.Value);
Assert.AreEqual(1, getterAndSetter.GetValue(complexType));
}
public void CtorFieldInfo()
{
var type = typeof(ComplexType);
foreach (var field in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
var getterAndSetter = new GetterAndSetter <ComplexType, int>(field);
//var complexType = new ComplexType();
//getterAndSetter.SetValue(complexType, 1);
//Assert.AreEqual(1, complexType.Value);
//Assert.AreEqual(1, getterAndSetter.GetValue(complexType));
}
}
public void CtorFieldInfo()
{
var type = typeof(ComplexType);
foreach (var field in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
var getterAndSetter = new GetterAndSetter<ComplexType, int>(field);
//var complexType = new ComplexType();
//getterAndSetter.SetValue(complexType, 1);
//Assert.AreEqual(1, complexType.Value);
//Assert.AreEqual(1, getterAndSetter.GetValue(complexType));
}
}
private static void EnsurePropertySettersAndGettersForType(Type type)
{
if (false == _compiledProperties.ContainsKey(type))
{
lock (_compiledPropertiesLockObject)
if (false == _compiledProperties.ContainsKey(type))
{
Dictionary <string, GetterAndSetter> _getterAndSetters;
_compiledProperties[type] = _getterAndSetters = new Dictionary <string, GetterAndSetter>();
var properties = type.GetProperties(System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic);
foreach (var property in properties)
{
var getterAndSetter = new GetterAndSetter();
_getterAndSetters[property.Name] = getterAndSetter;
// burn getter and setter
if (property.CanRead)
{
// burn getter
var param = Expression.Parameter(typeof(object), "param");
Expression propExpression = Expression.Convert(Expression.Property(Expression.Convert(param, type), property), typeof(object));
var lambda = Expression.Lambda(propExpression, new[] { param });
var compiled = lambda.Compile() as Func <object, object>;
getterAndSetter.Getter = compiled;
}
if (property.CanWrite)
{
var thisParam = Expression.Parameter(typeof(Object), "this");
var theValue = Expression.Parameter(typeof(Object), "value");
var isValueType = property.PropertyType.IsClass == false && property.PropertyType.IsInterface == false;
Expression valueExpression;
if (isValueType)
{
valueExpression = Expression.Unbox(theValue, property.PropertyType);
}
else
{
valueExpression = Expression.Convert(theValue, property.PropertyType);
}
var thisExpression = Expression.Property(Expression.Convert(thisParam, type), property);
Expression body = Expression.Assign(thisExpression, valueExpression);
var block = Expression.Block(new[]
{
body,
Expression.Empty()
});
var lambda = Expression.Lambda(block, thisParam, theValue);
getterAndSetter.Setter = lambda.Compile() as Action <Object, Object>;
}
}
}
}
}
