private Action <object, object> CreateSetterDelegate(PropertyInfo propertyInfo)
{
if (!propertyInfo.CanWrite)
{
return(null);
}
var setMethod = propertyInfo.GetSetMethod(true);
var dm = new DynamicMethod("PropertySetter", null,
new Type[] { typeof(object), typeof(object) }, propertyInfo.DeclaringType, true);
var emiter = new EmitHelper(dm.GetILGenerator());
emiter.Assert(!setMethod.IsStatic, e => e.ldarg_0.end())
.ldarg_1
.Assert(propertyInfo.PropertyType.IsValueType,
e => e.unbox_any(propertyInfo.PropertyType), e => e.castclass(propertyInfo.PropertyType))
.Assert(!setMethod.IsStatic && !propertyInfo.DeclaringType.IsValueType,
e => e.callvirt(setMethod), e => e.call(setMethod))
.ret();
return((Action <object, object>)dm.CreateDelegate(typeof(Action <object, object>)));
}
private Func <object, object> CreateGetterDelegate(PropertyInfo propertyInfo)
{
if (!propertyInfo.CanRead)
{
return(null);
}
var getMethod = propertyInfo.GetGetMethod(true);
var dm = new DynamicMethod("PropertyGetter", typeof(object),
new Type[] { typeof(object) }, propertyInfo.DeclaringType, true);
var emiter = new EmitHelper(dm.GetILGenerator());
emiter.Assert(!getMethod.IsStatic, e => e.ldarg_0.end())
.Assert(!getMethod.IsStatic && !propertyInfo.DeclaringType.IsValueType,
e => e.callvirt(getMethod), e => e.call(getMethod))
.Assert(propertyInfo.PropertyType.IsValueType,
e => e.box(propertyInfo.PropertyType))
.ret();
return((Func <object, object>)dm.CreateDelegate(typeof(Func <object, object>)));
}