DevTools: introduce collections shim to be backed by non-wtf in v8_inspector.

third_party/WebKit/Source/platform/inspector_protocol/CollectionsWTF.h

+// Copyright 2016 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 CollectionsWTF_h
+#define CollectionsWTF_h
+
+#include "wtf/Allocator.h"
+#include "wtf/HashMap.h"
+#include "wtf/PassOwnPtr.h"
+#include "wtf/Vector.h"
+#include "wtf/VectorTraits.h"
+
+namespace blink {
+namespace protocol {
+
+template <typename T>
+class Vector {
+public:
+    Vector() { }
+    Vector(size_t capacity) : m_impl(capacity) { }
+    typedef T* iterator;
+    typedef const T* const_iterator;
+
+    iterator begin() { return m_impl.begin(); }
+    iterator end() { return m_impl.end(); }
+    const_iterator begin() const { return m_impl.begin(); }
+    const_iterator end() const { return m_impl.end(); }
+
+    void resize(size_t s) { m_impl.resize(s); }
+    size_t find(const T& t) const { return m_impl.find(t); }
+    size_t size() const { return m_impl.size(); }
+    bool isEmpty() const { return m_impl.isEmpty(); }
+    T& operator[](size_t i) { return at(i); }
+    const T& operator[](size_t i) const { return at(i); }
+    T& at(size_t i) { return m_impl.at(i); }
+    const T& at(size_t i) const { return m_impl.at(i); }
+    T& last() { return m_impl.last(); }
+    const T& last() const { return m_impl.last(); }
+    void append(const T& t) { m_impl.append(t); }
+    void prepend(const T& t) { m_impl.prepend(t); }
+    void remove(size_t i) { m_impl.remove(i); }
+    void insert(size_t i, const T& t) { m_impl.insert(i, t); }
+    void clear() { m_impl.clear(); }
+    void swap(Vector& other) { m_impl.swap(other.m_impl); }
+    void removeLast() { m_impl.removeLast(); }
+
+private:
+    WTF::Vector<T> m_impl;
+};
+
+template <typename T>
+class Vector<OwnPtr<T>> {
+    WTF_MAKE_NONCOPYABLE(Vector);
+public:
+    Vector() { }
+    Vector(size_t capacity) : m_impl(capacity) { }
+    ~Vector() { }
+
+    typedef OwnPtr<T>* iterator;
+    typedef const OwnPtr<T>* const_iterator;
+
+    iterator begin() { return m_impl.begin(); }
+    iterator end() { return m_impl.end(); }
+    const_iterator begin() const { return m_impl.begin(); }
+    const_iterator end() const { return m_impl.end(); }
+
+    void resize(size_t s) { m_impl.resize(s); }
+    size_t find(const T* t) const { return m_impl.find(t); }
+    size_t size() const { return m_impl.size(); }
+    bool isEmpty() const { return m_impl.isEmpty(); }
+    OwnPtr<T>& operator[](size_t i) { return m_impl.at(i); }
+    const OwnPtr<T>& operator[](size_t i) const { return m_impl.at(i); }
+    OwnPtr<T>& at(size_t i) { return m_impl.at(i); }
+    const OwnPtr<T>& at(size_t i) const { return m_impl.at(i); }
+    OwnPtr<T>& last() { return m_impl.last(); }
+    const OwnPtr<T>& last() const { return m_impl.last(); }
+    void append(PassOwnPtr<T> t) { m_impl.append(t); }
+    void prepend(PassOwnPtr<T> t) { m_impl.prepend(t); }
+    void remove(size_t i) { m_impl.remove(i); }
+    void insert(size_t i, PassOwnPtr<T> t) { m_impl.insert(i, t); }
+    void clear() { m_impl.clear(); }
+    void swap(Vector& other) { m_impl.swap(other.m_impl); }
+    void removeLast() { m_impl.removeLast(); }
+
+private:
+    WTF::Vector<OwnPtr<T>> m_impl;
+};
+
+template <typename K, typename V, typename I>
+class HashMapIterator {
+    STACK_ALLOCATED();
+public:
+    HashMapIterator(const I& impl) : m_impl(impl) { }
+    std::pair<K, V*>* get() const { m_pair = std::make_pair(m_impl->key, &m_impl->value); return &m_pair; }
+    std::pair<K, V*>& operator*() const { return *get(); }
+    std::pair<K, V*>* operator->() const { return get(); }
+
+    bool operator==(const HashMapIterator<K, V, I>& other) const { return m_impl == other.m_impl; }
+    bool operator!=(const HashMapIterator<K, V, I>& other) const { return m_impl != other.m_impl; }
+
+    HashMapIterator<K, V, I>& operator++() { ++m_impl; return *this; }
+
+private:
+    mutable std::pair<K, V*> m_pair;
+    I m_impl;
+};
+
+template <typename K, typename V, typename I>
+class HashMapIterator<K, OwnPtr<V>, I> {
+    STACK_ALLOCATED();
+public:
+    HashMapIterator(const I& impl) : m_impl(impl) { }
+    std::pair<K, V*>* get() const { m_pair = std::make_pair(m_impl->key, m_impl->value.get()); return &m_pair; }
+    std::pair<K, V*>& operator*() const { return *get(); }
+    std::pair<K, V*>* operator->() const { return get(); }
+
+    bool operator==(const HashMapIterator<K, OwnPtr<V>, I>& other) const { return m_impl == other.m_impl; }
+    bool operator!=(const HashMapIterator<K, OwnPtr<V>, I>& other) const { return m_impl != other.m_impl; }
+
+    HashMapIterator<K, OwnPtr<V>, I>& operator++() { ++m_impl; return *this; }
+
+private:
+    mutable std::pair<K, V*> m_pair;
+    I m_impl;
+};
+
+template <typename K, typename V>
+class HashMap {
+public:
+    HashMap() { }
+    ~HashMap() { }
+
+    using iterator = HashMapIterator<K, V, typename WTF::HashMap<K, V>::iterator>;
+    using const_iterator = HashMapIterator<K, const V, typename WTF::HashMap<K, V>::const_iterator>;
+
+    iterator begin() { return HashMapIterator<K, V, typename WTF::HashMap<K, V>::iterator>(m_impl.begin()); }
+    iterator end() { return HashMapIterator<K, V, typename WTF::HashMap<K, V>::iterator>(m_impl.end()); }
+    iterator find(const K& k) { return HashMapIterator<K, V, typename WTF::HashMap<K, V>::iterator>(m_impl.find(k)); }
+    const_iterator begin() const { return HashMapIterator<K, const V, typename WTF::HashMap<K, V>::const_iterator>(m_impl.begin()); }
+    const_iterator end() const { return HashMapIterator<K, const V, typename WTF::HashMap<K, V>::const_iterator>(m_impl.end()); }
+    const_iterator find(const K& k) const { return HashMapIterator<K, const V, typename WTF::HashMap<K, V>::const_iterator>(m_impl.find(k)); }
+
+    size_t size() const { return m_impl.size(); }
+    bool isEmpty() const { return m_impl.isEmpty(); }
+    bool set(const K& k, const V& v) { return m_impl.set(k, v).isNewEntry; }
+    bool contains(const K& k) const { return m_impl.contains(k); }
+    V get(const K& k) const { return m_impl.get(k); }
+    void remove(const K& k) { m_impl.remove(k); }
+    void clear() { m_impl.clear(); }
+    V take(const K& k) { return m_impl.take(k); }
+
+private:
+    WTF::HashMap<K, V> m_impl;
+};
+
+template <typename K, typename V>
+class HashMap<K, OwnPtr<V>> {
+public:
+    HashMap() { }
+    ~HashMap() { }
+
+    using iterator = HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::iterator>;
+    using const_iterator = HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::const_iterator>;
+
+    iterator begin() { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::iterator>(m_impl.begin()); }
+    iterator end() { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::iterator>(m_impl.end()); }
+    iterator find(const K& k) { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::iterator>(m_impl.find(k)); }
+    const_iterator begin() const { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::const_iterator>(m_impl.begin()); }
+    const_iterator end() const { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::const_iterator>(m_impl.end()); }
+    const_iterator find(const K& k) const { return HashMapIterator<K, OwnPtr<V>, typename WTF::HashMap<K, OwnPtr<V>>::const_iterator>(m_impl.find(k)); }
+
+    size_t size() const { return m_impl.size(); }
+    bool isEmpty() const { return m_impl.isEmpty(); }
+    bool set(const K& k, PassOwnPtr<V> v) { return m_impl.set(k, v).isNewEntry; }
+    bool contains(const K& k) const { return m_impl.contains(k); }
+    V* get(const K& k) const { return m_impl.get(k); }
+    PassOwnPtr<V> take(const K& k) { return m_impl.take(k); }
+    void remove(const K& k) { m_impl.remove(k); }
+    void clear() { m_impl.clear(); }
+
+private:
+    WTF::HashMap<K, OwnPtr<V>> m_impl;
+};
+
+template <typename K>
+class HashSet : public protocol::HashMap<K, K> {
+public:
+    void add(const K& k) { this->set(k, k); }
+};
+
+} // namespace platform
+} // namespace blink
+
+#endif // !defined(CollectionsWTF_h)