--------------------------------------------------------------------------
Software Design and Development				Fall 1994
COM1205							Karl Lieberherr
---------------------------------------------------------------------------
Midterm

SOLUTIONS		               YOUR NAME:


Question 1: 
==================================================

UNKNOWN1 =VarExp 

UNKNOWN2 =VarExp

UNKNOWN3 =DemIdent

UNKNOWN4 =AppExp

UNKNOWN5 =(

UNKNOWN6 =(lambda

UNKNOWN7 =PList

UNKNOWN8 =(set!

UNKNOWN9 =stack

UNKNOWN10 =(

UNKNOWN11 =rator

UNKNOWN12 =a

UNKNOWN13 =rator

UNKNOWN14 =f

UNKNOWN15 =a

UNKNOWN16 =f

UNKNOWN17 =a

UNKNOWN18 =plus

UNKNOWN19 =Exp_List

UNKNOWN20 =b

UNKNOWN21 =3

UNKNOWN22 =100

UNKNOWN23 =10

UNKNOWN24 =lambda

UNKNOWN25 =lambda

UNKNOWN26 =lambda

UNKNOWN27 =(if

Question 2: 
==================================================

UNKNOWN1 = Expression

UNKNOWN2 = Free

UNKNOWN3 = formal

UNKNOWN4 = boundVars

UNKNOWN5 = VarExp

UNKNOWN6 = VarExp

UNKNOWN7 = AppExp

UNKNOWN8 = VarExp

UNKNOWN9 = this->get_exps()->driver()

UNKNOWN10 =while 

UNKNOWN11 =Nothing

UNKNOWN12 =VarExp

UNKNOWN13 =contains

UNKNOWN14 =AppExp

UNKNOWN15 =get_rator

UNKNOWN16 =get_rand

UNKNOWN17 =get_body

UNKNOWN18 =boundVars

UNKNOWN19 =this->get_lvalue()->findFreeVars_(return_val,boundVars)

UNKNOWN20 =if(this->get_falseExp()!=NULL) (or if (falseExp))


Question 3: 
==================================================

UNKNOWN1 = SchemeProgram *to* IfExp

UNKNOWN2 = IfExp *prefix* (@ cout << this; @)

UNKNOWN3 = SchemeProgram *through* -> *,formal,* *to* Variable

or

UNKNOWN3 = SchemeProgram *via* ProcExp *through* -> *,formal,* *to* Variable

UNKNOWN4 = Variable *prefix* (@ cout << this ; @)

UNKNOWN5 = ProcExp

UNKNOWN6 = ProcExp

UNKNOWN7 = ProcExp

UNKNOWN8 = AssignExp

UNKNOWN9 = AssignExp

UNKNOWN10 =SchemeProgram *to* IfExp

UNKNOWN11 =IfExp *prefix* (@ this -> set_falseExp(NULL); @)