The place which holds the definition of the global function binding , if any, named by that symbol , and which is accessed by symbol-function . See cell . See also extended function designator . The evaluator performs functional evaluation implicitly when it encounters a function name or a lambda expression in the car of a compound form , or explicitly when it encounters a function special form . Neither a use of a symbol as a function designator nor a use of the function symbol-function to extract the functional value of a symbol is considered a functional evaluation .
Further compilation is permitted to take place at run time .
Block compilation and generation of machine-specific instructions are examples of further compilation.