/** 11.13 and 7.8 assignment with literal. */
@Override
public void visit(ConstantNode n, State state) {
Value v;
switch (n.getType()) {
case NULL:
v = Value.makeNull();
break;
case UNDEFINED:
v = Value.makeUndef();
break;
case BOOLEAN:
v = Value.makeBool(n.getBoolean());
break;
case NUMBER:
v = Value.makeNum(n.getNumber());
break;
case STRING:
v = Value.makeStr(n.getString());
break;
default:
throw new AnalysisException();
}
if (n.getResultRegister() != AbstractNode.NO_VALUE)
state.writeRegister(n.getResultRegister(), v);
}
/** 12.6.4 check for more properties of 'for-in' statement. */
@Override
public void visit(HasNextPropertyNode n, State state) {
Value v =
UnknownValueResolver.getRealValue(state.readRegister(n.getPropertyListRegister()), state);
Value res =
!v.isNotStr()
? Value.makeBool(true)
: Value.makeNone(); // string values represent property names
if (v.isMaybeNull()) // null marks end-of-list
res = res.joinBool(false);
state.writeRegister(n.getResultRegister(), res);
}