/**
*
*/
- public PHPDBGEvalString (PHPStackFrame stack, String dataStr) {
- fStackFrame = stack;
- workStr = dataStr;
+ public PHPDBGEvalString(PHPStackFrame stack, String dataStr) {
+ fStackFrame = stack;
+ workStr = dataStr;
}
/**
*/
int ExtractInt (char chstart, char chend, int startIdx) throws DebugException {
String subs;
- int rslt;
subs = ExtractSubStr (chstart, chend, startIdx);
* @param var_list
* @param startIdx
*/
- boolean ParseEvalRef (String name, PHPVariable parent, Vector list, Vector var_list, boolean isSoftRef, int startIdx) throws DebugException {
- int v;
+ private boolean ParseEvalRef (String name, PHPVariable parent, Vector list,
+ Vector var_list, boolean isSoftRef, int startIdx
+ ) throws DebugException {
+ int v; // The ref ID (index into vector list)
PHPVariable item;
PHPVariable var_item;
- v = ExtractInt(':', ';',startIdx);
- item = new PHPVariable (fStackFrame, name, parent, "", (isSoftRef) ? (PHPValue.PEVT_SOFTREF) : (PHPValue.PEVT_REF), null);
- v--; // ref ID is 1-based, EvalList is 0-based
+ v = ExtractInt (':', ';', startIdx);
+ item = new PHPVariable (fStackFrame, name, parent, "",
+ isSoftRef ? PHPValue.PEVT_SOFTREF : PHPValue.PEVT_REF, null);
+ v--; // ref ID is 1-based, EvalList is 0-based
if ((var_list == null) ||
- (v < 0) ||
- (v >= var_list.size ())) {
-// item.ref = item; // self-resolving
-//
+ (v < 0) || (v >= var_list.size ())) { // Check ref ID (index) bounds
+ //item.ref = item; // self-resolving
return true;
- } else {
- var_item = (PHPVariable) var_list.get (v);
+ }
+ else {
+// This is the original code without the problems of stackframe overflow
+ var_item = (PHPVariable) var_list.get (v); // Get the variable from the list of all variables
try {
item.setValue (var_item.getValue ());
item.setReferenceType (var_item.getReferenceType ());
- ((PHPValue) item.getValue ()).setParent (item);
+// ((PHPValue) item.getValue ()).setParent (item); // Set the new variable as parent for all child variables
} catch (DebugException e) {
// TODO Auto-generated catch block
e.printStackTrace ();
}
list.add (item);
+
+/*************
+ * this code produces a stackframe overflow if the reference contains loop references
+ var_item = (PHPVariable) var_list.get (v); // Get the referenced variable from the list of variables
+
+ PHPValue new_val = (PHPValue) var_item.getValue ();
+
+ if (isSoftRef) {
+ // expand reduced structure to full tree
+ // each value must have its appropriate parent
+ try {
+ new_val = copyItems (new_val, 0); // Copy the child variables to the new referenced variable
+ } catch (CloneNotSupportedException e) {
+ // never occurs
+ }
+ }
+
+ try {
+ //item.setValue(var_item.getValue());
+ //item.setReferenceType(var_item.getReferenceType());
+ //((PHPValue) item.getValue()).setParent(item);
+ item.setValue (new_val);
+ item.setReferenceType (var_item.getReferenceType ());
+ new_val.setParent (item);
+ } catch (DebugException e) {
+ // never occurs
+ }
+
+ list.add (item);
+ */
}
return true;
*
* @return The array of PHPVariables
*/
- public PHPVariable[] getVars () {
- Vector list = new Vector ();
- Vector var_list = new Vector ();
+ public PHPVariable[] getVars() {
+ Vector list = new Vector();
+ Vector var_list = new Vector();
- parse ("", null, list, var_list, false, 0);
+ parse("", null, list, var_list, false, 0);
- return (PHPVariable[]) list.toArray (new PHPVariable[list.size ()]); // Convert the list to an array and return the array
+ return (PHPVariable[]) list.toArray(new PHPVariable[list.size()]); // Convert the list to an array and return the array
}
/**
*
* @return The PHPVariables as list
*/
- public Vector getVariables () {
- Vector list = new Vector ();
- Vector var_list = new Vector ();
+ public Vector getVariables() {
+ Vector list = new Vector();
+ Vector var_list = new Vector();
- parse ("", null, list, var_list, false, 0);
+ parse("", null, list, var_list, false, 0);
- return list; // return the PHPVariable list
+ //debugDump(list, "");
+ return list; // return the PHPVariable list
}
/**
case 'z': ParseEvalResource (name, parent, list, var_list, startIdx); break;
case 'R': ParseEvalRef (name, parent, list, var_list, false, startIdx); break;
case 'r': ParseEvalRef (name, parent, list, var_list, true, startIdx); break;
+ case '?': ParseEvalUnknown(name, parent, list, var_list, startIdx); break;
}
} catch (DebugException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
+ PHPDebugCorePlugin.log(e);
}
/* if (!ret_val) { // try to recover
*/
return ret_val; // Always false
}
+
+ /*
+ *
+ */
+ private void ParseEvalUnknown(String name, PHPVariable parent, Vector list,
+ Vector var_list, int startIdx) throws DebugException {
+
+ if ((startIdx >= workStr.length()) || (workStr.charAt(startIdx) != ';')) {
+ Status status = new Status(Status.ERROR, PHPDebugCorePlugin
+ .getUniqueIdentifier(), Status.OK, "unexpected response",
+ null);
+ throw new DebugException(status);
+ }
+
+ workStr = workStr.substring(1);
+ PHPVariable item = new PHPVariable(fStackFrame, name, parent, "?",
+ PHPValue.PEVT_UNKNOWN, null);
+ list.add(item);
+ if (var_list != null) {
+ var_list.add(item);
+ }
+ }
+
+ /*
+ * Copy referenced items tree
+ *
+ * @note We have to take care of recursion. We have to stop on recursion else
+ * we get a stack overflow!
+ *
+ * @param val The variable for which we build the tree of all childs
+ */
+ private PHPValue copyItems (PHPValue val, int nDepth) throws CloneNotSupportedException {
+ PHPValue newVal = (PHPValue) val.clone();
+ Vector vars = newVal.getChildVariables();
+ Vector newVars = new Vector();
+
+ nDepth++;
+
+ if (nDepth >= 10) { // A very quick and very dirty way to avoid stack overflow
+ return newVal;
+ }
+
+ for (int i = 0; i < vars.size(); i++) {
+ PHPVariable newVar = (PHPVariable) ((PHPVariable) vars.get(i)).clone();
+
+ try {
+ newVar.setValue (copyItems ((PHPValue) newVar.getValue(), nDepth));
+ } catch (DebugException e) {
+ // never occurs
+ }
+
+ newVars.add (newVar);
+ }
+
+ val.setVariables (newVars);
+
+ return newVal;
+ }
+
+// private void debugDump(Vector list, String indent) {
+// for (int i = 0; i < list.size(); i++) {
+// PHPVariable var = (PHPVariable) list.get(i);
+// System.out.print(indent + var.getName());
+// PHPValue val = (PHPValue) var.getValue();
+// try {
+// if (val.hasVariables() && !var.getName().equals("['GLOBALS']")) {
+// System.out.println();
+// debugDump(val.getChildVariables(), indent + " ");
+// } else {
+// PHPVariable parent = var.getParent();
+// System.out.println(val.getValueString() + " \t>>" + (parent == null ? "null" : parent.getLongName()));
+// }
+// } catch (DebugException e) {
+// e.printStackTrace();
+// }
+// }
+// }
}
git://git.phpeclipse.com / phpeclipse.git / blobdiff