//设置私有字段 public static void SetPrivateField(this ILGenerator il, Action thisInStack, FieldInfo info, object value) { //加载SetValue的第一个参数 即FieldInfo il.REmit(OpCodes.Ldtoken, info.DeclaringType); il.REmit(OpCodes.Call, ClassCache.ClassHandle); il.REmit(OpCodes.Ldstr, info.Name); il.REmit(OpCodes.Ldc_I4_S, 44); il.REmit(OpCodes.Callvirt, ClassCache.FieldInfoGetter); //加载SetValue的第二个参数 if (thisInStack != null) { thisInStack(); } il.Packet(info.DeclaringType); //加载SetValue的第三个参数 il.NoErrorLoad(value, info.FieldType); if (value != null) { if (il.IsNullable(info.FieldType)) { il.Packet(info.FieldType); } else { il.Packet(value.GetType()); } } //调用SetValue il.REmit(OpCodes.Callvirt, ClassCache.FieldValueSetter); }
//各种数据给我就能入栈 public static void NoErrorLoad(this ILGenerator il, object value, Type type) { if (il.IsNullable(type)) { if (value == null) { EModel model = EModel.CreateModel(type).UseDefaultConstructor(); model.Load(); } else { Action action = value as Action; if (action == null) { il.NoErrorLoad(value, type.GenericTypeArguments[0]); ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] }); il.REmit(OpCodes.Newobj, ctor); } else { action(); ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] }); il.REmit(OpCodes.Newobj, ctor); } } } else { il.NoErrorLoad(value); } }
public static void CallNullableCtor(this ILGenerator il, Type type) { if (il.IsNullable(type)) { ConstructorInfo ctor = type.GetConstructor(new Type[] { type.GenericTypeArguments[0] }); il.REmit(OpCodes.Newobj, ctor); } }