net.sourceforge.phpeclipse.debug.core/src/net/sourceforge/phpdt/internal/debug/core/watch/PHPWatchExpressionDelegate.java

   1 package net.sourceforge.phpdt.internal.debug.core.watch;
   2
   3 import java.util.Vector;
   4
   5 import net.sourceforge.phpdt.internal.debug.core.PHPDBGProxy;
   6 import net.sourceforge.phpdt.internal.debug.core.model.PHPDebugTarget;
   7 import net.sourceforge.phpdt.internal.debug.core.model.PHPStackFrame;
   8 import net.sourceforge.phpdt.internal.debug.core.model.PHPValue;
   9 import net.sourceforge.phpdt.internal.debug.core.model.PHPVariable;
  10
  11 import org.eclipse.debug.core.model.IDebugElement;
  12 import org.eclipse.debug.core.model.IWatchExpressionDelegate;
  13 import org.eclipse.debug.core.model.IWatchExpressionListener;
  14 import org.eclipse.debug.core.model.IWatchExpressionResult;
  15
  16 /**
  17  *
  18  */
  19 public class PHPWatchExpressionDelegate implements IWatchExpressionDelegate {
  20
  21         public void evaluateExpression(String expression, IDebugElement context,
  22                         IWatchExpressionListener listener) {
  23                 IWatchExpressionResult x;
  24                 PHPDBGProxy dbg;
  25                 PHPStackFrame s;
  26
  27                 if (!(context instanceof PHPStackFrame)) {
  28                         x = new PHPWatchExpressionResult(expression, null, null);
  29                         listener.watchEvaluationFinished(x);
  30                         return;
  31                 }
  32
  33                 dbg = ((PHPDebugTarget) context.getDebugTarget()).getPHPDBGProxy();
  34                 s = (PHPStackFrame) context;
  35
  36                 try {
  37                         PHPVariable result[] = dbg.eval(s, expression);
  38
  39                         if (result.length == 0) {
  40                                 x = new PHPWatchExpressionResult(expression, null, null);
  41                         } else {
  42                                 switch (result[0].getReferenceType()) {
  43                                 case PHPValue.PEVT_ARRAY:
  44                                 case PHPValue.PEVT_OBJECT:
  45                                         result[0].setName(expression);
  46                                         reset(result[0]);
  47                                         break;
  48                                 }
  49                                 x = new PHPWatchExpressionResult(expression, result[0]
  50                                                 .getValue(), null);
  51                         }
  52                 } catch (Exception e) {
  53                         String[] s1;
  54
  55                         s1 = new String[1];
  56                         s1[0] = e.toString();
  57                         x = new PHPWatchExpressionResult(expression, null, s1);
  58                 }
  59
  60                 listener.watchEvaluationFinished(x);
  61         }
  62
  63         private void reset(PHPVariable variable) {
  64                 PHPValue value;
  65                 Vector variables;
  66
  67                 switch (variable.getReferenceType()) {
  68                 case PHPValue.PEVT_ARRAY:
  69                         value = (PHPValue) variable.getValue();
  70                         variables = value.getChildVariables();
  71                         for (int i = 0; i < variables.size(); i++) {
  72                                 PHPVariable var = (PHPVariable) variables.get(i);
  73                                 String name = var.getName();
  74                                 if (var.getLongName().equals(name)) {
  75                                         var.setName(name);
  76                                 } else {
  77                                         var.setParent(variable);
  78                                 }
  79                                 reset(var);
  80                         }
  81                         break;
  82                 case PHPValue.PEVT_OBJECT:
  83                         value = (PHPValue) variable.getValue();
  84                         variables = value.getChildVariables();
  85                         for (int i = 0; i < variables.size(); i++) {
  86                                 PHPVariable var = (PHPVariable) variables.get(i);
  87                                 var.setParent(variable);
  88                                 reset(var);
  89                         }
  90                         break;
  91                 }
  92         }
  93
  94 }