MIDTERM               COM 1205                   Winter 2003
Tuesday, February 11                             Karl Lieberherr

YOUR NAME:

Open book and open notes.

Question 1: 71
Question 2: 20
Question 3. 40
  131 points


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

UNKNOWN1 = TraversalAspectName 

UNKNOWN2 = Ident

UNKNOWN3 = Traversals

UNKNOWN4 = Decl

UNKNOWN5 = item

UNKNOWN6 = NamedStrat

UNKNOWN7 = strategyname

UNKNOWN8 = StrategyName

UNKNOWN9 = eachCommand

UNKNOWN10 = from Commands to Command

UNKNOWN11 = interpret

UNKNOWN12 = CompoundFile

UNKNOWN13 = cd

UNKNOWN14 = strategyname

UNKNOWN15 = StrategyName

UNKNOWN16 = ident

UNKNOWN17 = Ident

UNKNOWN18 = eachCommand

UNKNOWN19 = classname

UNKNOWN20 = ClassName

UNKNOWN21 = ident

UNKNOWN22 = Ident

UNKNOWN23 = Interpreter

UNKNOWN24 = CompoundFile


UNKNOWN25 = Interpreter


UNKNOWN26 = done: from Aspect to ClassName


UNKNOWN27 = CompoundFile


UNKNOWN28 = done: from Aspect via MethodSignature to ClassName



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

UNKNOWN1 = 

Visitor v = new Visitor() {
    void before (ClassName host) {
	  System.out.println(host.get_ident().toString());
    }
};
cg.traverse(m,
  "from Aspect to ClassName", v);

cg.traverse(m,
  "from Aspect via MethodSignature to ClassName", v);

Even better:

void printClassNames(String whereToGo) {
  Visitor v = new Visitor() {
    void before (ClassName host) {
	  System.out.println(host.get_ident().toString());
    }
  };
  cg.traverse(m, whereToGo, v);
};

// and call:
 printClassNames("from Aspect to ClassName");
 printClassNames("from Aspect via MethodSignature to ClassName");
  

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

UNKNOWN1 = 

// any number of formal parameters
MethodSignature = "void" MethodName "("
  [ <formals> CList(FormalArgument)] ")".
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
CList(S) ~ S {"," S}.

// Semicolon becomes a terminator of an item:

SList(S) ~ "{" { S } "}".
Decl = "declare" Item ";".