/* Generated By:JavaCC: Do not edit this line. JJTELParserState.java Version 7.0.13 */
package org.apache.el.parser;
@SuppressWarnings("all") // Ignore warnings in generated code
public class JJTELParserState {
private java.util.List<Node> nodes;
private java.util.List<Integer> marks;
private int sp; // number of nodes on stack
private int mk; // current mark
private boolean node_created;
public JJTELParserState() {
nodes = new java.util.ArrayList<Node>();
marks = new java.util.ArrayList<Integer>();
sp = 0;
mk = 0;
}
/*
* Determines whether the current node was actually closed and pushed. This should only be called in the final user
* action of a node scope.
*/
public boolean nodeCreated() {
return node_created;
}
/*
* Call this to reinitialize the node stack. It is called automatically by the parser's ReInit() method.
*/
public void reset() {
nodes.clear();
marks.clear();
sp = 0;
mk = 0;
}
/*
* Returns the root node of the AST. It only makes sense to call this after a successful parse.
*/
public Node rootNode() {
return nodes.get(0);
}
/* Pushes a node on to the stack. */
public void pushNode(Node n) {
nodes.add(n);
++sp;
}
/*
* Returns the node on the top of the stack, and remove it from the stack.
*/
public Node popNode() {
if (--sp < mk) {
mk = marks.remove(marks.size() - 1);
}
return nodes.remove(nodes.size() - 1);
}
/* Returns the node currently on the top of the stack. */
public Node peekNode() {
return nodes.get(nodes.size() - 1);
}
/*
* Returns the number of children on the stack in the current node scope.
*/
public int nodeArity() {
return sp - mk;
}
public void clearNodeScope(Node n) {
while (sp > mk) {
popNode();
}
mk = marks.remove(marks.size() - 1);
}
public void openNodeScope(Node n) {
marks.add(mk);
mk = sp;
n.jjtOpen();
}
/*
* A definite node is constructed from a specified number of children. That number of nodes are popped from the
* stack and made the children of the definite node. Then the definite node is pushed on to the stack.
*/
public void closeNodeScope(Node n, int num) {
mk = marks.remove(marks.size() - 1);
while (num-- > 0) {
Node c = popNode();
c.jjtSetParent(n);
n.jjtAddChild(c, num);
}
n.jjtClose();
pushNode(n);
node_created = true;
}
/*
* A conditional node is constructed if its condition is true. All the nodes that have been pushed since the node
* was opened are made children of the conditional node, which is then pushed on to the stack. If the condition is
* false the node is not constructed and they are left on the stack.
*/
public void closeNodeScope(Node n, boolean condition) {
if (condition) {
int a = nodeArity();
mk = marks.remove(marks.size() - 1);
while (a-- > 0) {
Node c = popNode();
c.jjtSetParent(n);
n.jjtAddChild(c, a);
}
n.jjtClose();
pushNode(n);
node_created = true;
} else {
mk = marks.remove(marks.size() - 1);
node_created = false;
}
}
}
/* JavaCC - OriginalChecksum=61260c571cf3016ef9e7eba56bd3802a (do not edit this line) */