public void visit(NodeListOptional n, String sep) {
if (n.present())
for (Enumeration e = n.elements(); e.hasMoreElements(); ) {
((Node) e.nextElement()).accept(this);
if (e.hasMoreElements()) out.print(sep);
}
}
//
// For convenience, trusts that the node passed to it is a NodeSequence.
// (of course, will throw an exception if it isn't).
//
public void visit(Node n1, String sep) {
NodeSequence n = (NodeSequence) n1;
for (Enumeration e = n.elements(); e.hasMoreElements(); ) {
((Node) e.nextElement()).accept(this);
if (e.hasMoreElements()) out.print(sep);
}
}
//
// f0 -> "try"
// f1 -> Block()
// f2 -> ( "catch" "(" FormalParameter() ")" Block() )*
// f3 -> [ "finally" Block() ]
//
public void visit(TryStatement n) {
out.println(n.f0);
out.print(spc.spc);
n.f1.accept(this);
for (Enumeration e = n.f2.elements(); e.hasMoreElements(); ) {
NodeSequence seq = (NodeSequence) e.nextElement();
out.println();
out.print(spc.spc);
seq.elementAt(0).accept(this);
out.print(" ");
seq.elementAt(1).accept(this);
seq.elementAt(2).accept(this);
seq.elementAt(3).accept(this);
out.println();
out.print(spc.spc);
seq.elementAt(4).accept(this);
}
if (n.f3.present()) {
NodeSequence seq = (NodeSequence) n.f3.node;
out.println();
seq.elementAt(0).accept(this);
out.println();
out.print(spc.spc);
seq.elementAt(1).accept(this);
}
}
//
// f0 -> "switch"
// f1 -> "("
// f2 -> Expression()
// f3 -> ")"
// f4 -> "{"
// f5 -> ( SwitchLabel() ( BlockStatement() )* )*
// f6 -> "}"
//
public void visit(SwitchStatement n) {
out.print(n.f0 + " " + n.f1);
n.f2.accept(this);
out.println(n.f3);
out.println(spc.spc + n.f4);
spc.updateSpc(+1);
for (Enumeration e = n.f5.elements(); e.hasMoreElements(); ) {
NodeSequence seq = (NodeSequence) e.nextElement();
out.print(spc.spc);
seq.elementAt(0).accept(this);
spc.updateSpc(+1);
if (((NodeListOptional) seq.elementAt(1)).present()) {
if (((NodeListOptional) seq.elementAt(1)).size() == 1) out.print(" ");
else {
out.println();
out.print(spc.spc);
}
visit((NodeListOptional) seq.elementAt(1), "\n" + spc.spc);
}
out.println();
spc.updateSpc(-1);
}
spc.updateSpc(-1);
out.println(spc.spc + n.f6);
}
//
// f0 -> UnaryExpression()
// f1 -> ( ( "*"| "/" | "%" ) UnaryExpression() )*
//
public void visit(MultiplicativeExpression n) {
n.f0.accept(this);
if (n.f1.present()) {
out.print(" ");
for (Enumeration e = n.f1.elements(); e.hasMoreElements(); )
visit((Node) e.nextElement(), " ");
}
}