Read the classics-the CLR via C # (Jeffrey Richter) Notes _dynamic primitive types

1. When code uses the dynamic expression/variable to invoke a member, the compiler generates special IL code to describe the desired operation. This special code is called Payload (payload). At run time, the payload code determines what to do based on the actual type of the object that is currently referenced by the dynamic expression/variable.

Example

Private Static return arg + arg;}

Analysis

The parameter type of this method is declared for dynamic. inside a method, the argument is used as two operands of the two-dollar + operator. Because arg is dynamic , the C # compiler generates payload code that checks the actual type of arg at run time and determines what the + operator actually does.

Read the classics-the CLR via C # (Jeffrey Richter) Notes _dynamic primitive types