示例#1
0
bool ArrayData::hasInternalReference(PointerSet &vars,
                                     bool ds /* = false */) const {
  if (isSharedMap()) return false;
  for (ArrayIter iter(this); iter; ++iter) {
    CVarRef var = iter.secondRef();
    if (var.isReferenced()) {
      Variant *pvar = var.getRefData();
      if (vars.find(pvar) != vars.end()) {
        return true;
      }
      vars.insert(pvar);
    }
    if (var.isObject()) {
      ObjectData *pobj = var.getObjectData();
      if (vars.find(pobj) != vars.end()) {
        return true;
      }
      vars.insert(pobj);
      if (ds && pobj->o_instanceof("Serializable")) {
        return true;
      }
      if (pobj->hasInternalReference(vars, ds)) {
        return true;
      }
    } else if (var.isArray() &&
               var.getArrayData()->hasInternalReference(vars, ds)) {
      return true;
    }
  }
  return false;
}
示例#2
0
bool ArrayData::hasInternalReference(PointerSet &vars) const {
  if (supportValueRef()) {
    for (ArrayIter iter(this); iter; ++iter) {
      CVarRef var = iter.secondRef();
      if (var.isReferenced()) {
        Variant *pvar = var.getVariantData();
        if (vars.find(pvar) != vars.end()) {
          return true;
        }
        vars.insert(pvar);
      }
      if (var.isObject()) {
        ObjectData *pobj = var.getObjectData();
        if (vars.find(pobj) != vars.end()) {
          return true;
        }
        vars.insert(pobj);

        if (pobj->o_toArray().get()->hasInternalReference(vars)) {
          return true;
        }
      } else if (var.isArray() &&
                 var.getArrayData()->hasInternalReference(vars)) {
        return true;
      }
    }
  }
  return false;
}
示例#3
0
static void php_array_replace_recursive(PointerSet &seen, bool check,
                                        Array &arr1, CArrRef arr2) {
  if (check) {
    if (seen.find((void*)arr1.get()) != seen.end()) {
      raise_warning("array_replace_recursive(): recursion detected");
      return;
    }
    seen.insert((void*)arr1.get());
  }

  for (ArrayIter iter(arr2); iter; ++iter) {
    Variant key = iter.first();
    CVarRef value = iter.secondRef();
    if (arr1.exists(key, true) && value.isArray()) {
      Variant &v = arr1.lvalAt(key, AccessFlags::Key);
      if (v.isArray()) {
        Array subarr1 = v.toArray();
        const ArrNR& arr_value = value.toArrNR();
        php_array_replace_recursive(seen, v.isReferenced(), subarr1,
                                    arr_value);
        v = subarr1;
      } else {
        arr1.set(key, value, true);
      }
    } else {
      arr1.lvalAt(key, AccessFlags::Key).setWithRef(value);
    }
  }

  if (check) {
    seen.erase((void*)arr1.get());
  }
}
示例#4
0
static void php_array_merge_recursive(PointerSet &seen, bool check,
                                      Array &arr1, CArrRef arr2) {
  if (check) {
    if (seen.find((void*)arr1.get()) != seen.end()) {
      raise_warning("array_merge_recursive(): recursion detected");
      return;
    }
    seen.insert((void*)arr1.get());
  }

  for (ArrayIter iter(arr2); iter; ++iter) {
    Variant key(iter.first());
    CVarRef value(iter.secondRef());
    if (key.isNumeric()) {
      arr1.appendWithRef(value);
    } else if (arr1.exists(key, true)) {
      // There is no need to do toKey() conversion, for a key that is already
      // in the array.
      Variant &v = arr1.lvalAt(key, AccessFlags::Key);
      Array subarr1(v.toArray()->copy());
      php_array_merge_recursive(seen, v.isReferenced(), subarr1,
                                value.toArray());
      v.unset(); // avoid contamination of the value that was strongly bound
      v = subarr1;
    } else {
      arr1.addLval(key, true).setWithRef(value);
    }
  }

  if (check) {
    seen.erase((void*)arr1.get());
  }
}
示例#5
0
文件: apc-handle.cpp 项目: 6api/hhvm
inline
bool DataWalker::markVisited(
    void* pvar,
    DataFeature& features,
    PointerSet& visited) const {
  if (visited.find(pvar) != visited.end()) {
    features.m_circular = true;
    return true;
  }
  visited.insert(pvar);
  return false;
}
示例#6
0
bool ArrayData::hasInternalReference(PointerSet &vars,
                                     bool ds /* = false */) const {
    if (isSharedMap()) return false;
    for (ArrayIter iter(this); iter; ++iter) {
        CVarRef var = iter.secondRef();
        if (var.isReferenced()) {
            Variant *pvar = var.getVariantData();
            if (vars.find(pvar) != vars.end()) {
                return true;
            }
            vars.insert(pvar);
        }
        if (var.isObject()) {
            ObjectData *pobj = var.getObjectData();
            if (vars.find(pobj) != vars.end()) {
                return true;
            }
            vars.insert(pobj);
            if (pobj->o_instanceof("Serializable")) {
                if (ds) {
                    // We want to detect Serializable object as well
                    return true;
                } else {
                    // Serializable object does not have internal reference issue
                    return false;
                }
            }
            if (pobj->o_toArray().get()->hasInternalReference(vars, ds)) {
                return true;
            }
        } else if (var.isArray() &&
                   var.getArrayData()->hasInternalReference(vars, ds)) {
            return true;
        }
    }
    return false;
}