Assignment

assignment.java

    public StoreAndValue eval(Store s, Environment e) {
    	StoreAndValue s_and_v = rightHandSide.eval(s, e);
    	int loc = s.newLocation();
    	// Be careful of this. It might be wrong, though it works now
    	e.extendDestructive(leftHandSide, loc);
    	
    	if (s_and_v.value instanceof BoolValue) {
    		BoolValue res = (BoolValue) s_and_v.value;
    		s = s.extend(loc, res);
    		return new StoreAndValue(s, res);
    	} else if (s_and_v.value instanceof IntValue) {
    		IntValue res = (IntValue) s_and_v.value;
    		s = s.extend(loc, res);
    		return new StoreAndValue(s, res);
    	} else if (s_and_v.value instanceof FunValue) {
    		FunValue res = (FunValue) s_and_v.value;
    		s = s.extend(loc, res);
    		return new StoreAndValue(s, res);
    	} else {
    		return new StoreAndValue(s,new BoolValue(true));
    	}
    }