1 files changed, 96 insertions, 0 deletions
diff --git a/base/memory/scoped_vector.h b/base/memory/scoped_vector.h
new file mode 100644
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--- /dev/null
+++ b/base/memory/scoped_vector.h
@@ -0,0 +1,96 @@
+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_MEMORY_SCOPED_VECTOR_H_
+#define BASE_MEMORY_SCOPED_VECTOR_H_
+#pragma once
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/stl_util-inl.h"
+
+// ScopedVector wraps a vector deleting the elements from its
+// destructor.
+template <class T>
+class ScopedVector {
+ public:
+  typedef typename std::vector<T*>::iterator iterator;
+  typedef typename std::vector<T*>::const_iterator const_iterator;
+  typedef typename std::vector<T*>::reverse_iterator reverse_iterator;
+  typedef typename std::vector<T*>::const_reverse_iterator
+      const_reverse_iterator;
+
+  ScopedVector() {}
+  ~ScopedVector() { reset(); }
+
+  std::vector<T*>* operator->() { return &v; }
+  const std::vector<T*>* operator->() const { return &v; }
+  T*& operator[](size_t i) { return v[i]; }
+  const T* operator[](size_t i) const { return v[i]; }
+
+  bool empty() const { return v.empty(); }
+  size_t size() const { return v.size(); }
+
+  reverse_iterator rbegin() { return v.rbegin(); }
+  const_reverse_iterator rbegin() const { return v.rbegin(); }
+  reverse_iterator rend() { return v.rend(); }
+  const_reverse_iterator rend() const { return v.rend(); }
+
+  iterator begin() { return v.begin(); }
+  const_iterator begin() const { return v.begin(); }
+  iterator end() { return v.end(); }
+  const_iterator end() const { return v.end(); }
+
+  void push_back(T* elem) { v.push_back(elem); }
+
+  std::vector<T*>& get() { return v; }
+  const std::vector<T*>& get() const { return v; }
+  void swap(ScopedVector<T>& other) { v.swap(other.v); }
+  void release(std::vector<T*>* out) {
+    out->swap(v);
+    v.clear();
+  }
+
+  void reset() { STLDeleteElements(&v); }
+  void reserve(size_t capacity) { v.reserve(capacity); }
+  void resize(size_t new_size) { v.resize(new_size); }
+
+  // Lets the ScopedVector take ownership of |x|.
+  iterator insert(iterator position, T* x) {
+    return v.insert(position, x);
+  }
+
+  // Lets the ScopedVector take ownership of elements in [first,last).
+  template<typename InputIterator>
+  void insert(iterator position, InputIterator first, InputIterator last) {
+    v.insert(position, first, last);
+  }
+
+  iterator erase(iterator position) {
+    delete *position;
+    return v.erase(position);
+  }
+
+  iterator erase(iterator first, iterator last) {
+    STLDeleteContainerPointers(first, last);
+    return v.erase(first, last);
+  }
+
+  // Like |erase()|, but doesn't delete the element at |position|.
+  iterator weak_erase(iterator position) {
+    return v.erase(position);
+  }
+
+  // Like |erase()|, but doesn't delete the elements in [first, last).
+  iterator weak_erase(iterator first, iterator last) {
+    return v.erase(first, last);
+  }
+ private:
+  std::vector<T*> v;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedVector);
+};
+
+#endif  // BASE_MEMORY_SCOPED_VECTOR_H_