Activation records are a data structure used in compiler design to store information about the activation of a function. They are kept by the runtime environmen...
Activation records are a data structure used in compiler design to store information about the activation of a function. They are kept by the runtime environment during the execution of a compiled program. These records contain various details about the activation, including:
Function name: The name of the function that was called.
Function address: The memory address of the function's entry point.
Number of arguments: The number of arguments the function takes.
Argument values: The values of the function's arguments.
Activation context: The execution environment in which the activation took place.
Call stack: A record of the function's invocation stack.
The runtime environment uses activation records to keep track of the context of each function call and to ensure that the correct code is executed in the correct order. They are also used by the garbage collector to identify and deallocate unused activation records.
Activation records are an essential component of the compiler's runtime environment, providing the necessary information for the compiler to execute compiled programs accurately