예제 #1
0
 private static Method findMethod(ObjArray methods, Symbol name, Symbol signature) {
   int len = (int) methods.getLength();
   // methods are sorted, so do binary search
   int l = 0;
   int h = len - 1;
   while (l <= h) {
     int mid = (l + h) >> 1;
     Method m = (Method) methods.getObjAt(mid);
     int res = m.getName().fastCompare(name);
     if (res == 0) {
       // found matching name; do linear search to find matching signature
       // first, quick check for common case
       if (m.getSignature().equals(signature)) return m;
       // search downwards through overloaded methods
       int i;
       for (i = mid - 1; i >= l; i--) {
         Method m1 = (Method) methods.getObjAt(i);
         if (!m1.getName().equals(name)) break;
         if (m1.getSignature().equals(signature)) return m1;
       }
       // search upwards
       for (i = mid + 1; i <= h; i++) {
         Method m1 = (Method) methods.getObjAt(i);
         if (!m1.getName().equals(name)) break;
         if (m1.getSignature().equals(signature)) return m1;
       }
       // not found
       if (Assert.ASSERTS_ENABLED) {
         int index = linearSearch(methods, name, signature);
         if (index != -1) {
           throw new DebuggerException("binary search bug: should have found entry " + index);
         }
       }
       return null;
     } else if (res < 0) {
       l = mid + 1;
     } else {
       h = mid - 1;
     }
   }
   if (Assert.ASSERTS_ENABLED) {
     int index = linearSearch(methods, name, signature);
     if (index != -1) {
       throw new DebuggerException("binary search bug: should have found entry " + index);
     }
   }
   return null;
 }
예제 #2
0
 private static int linearSearch(ObjArray methods, Symbol name, Symbol signature) {
   int len = (int) methods.getLength();
   for (int index = 0; index < len; index++) {
     Method m = (Method) methods.getObjAt(index);
     if (m.getSignature().equals(signature) && m.getName().equals(name)) {
       return index;
     }
   }
   return -1;
 }