15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright (C) 2009 Google Inc. All rights reserved. 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * modification, are permitted provided that the following conditions are 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * met: 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * * Redistributions of source code must retain the above copyright 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * notice, this list of conditions and the following disclaimer. 102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * in the documentation and/or other materials provided with the 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * distribution. 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * contributors may be used to endorse or promote products derived from 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * this software without specific prior written permission. 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) */ 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#ifndef WebVector_h 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define WebVector_h 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 342a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "WebCommon.h" 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <algorithm> 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <limits> 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <stdlib.h> 392a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace blink { 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A simple vector class. 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Sample usage: 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 462a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// void Foo(WebVector<int>& result) 472a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// WebVector<int> data(10); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// for (size_t i = 0; i < data.size(); ++i) 502a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// data[i] = ... 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// result.swap(data); 522a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)// } 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// It is also possible to assign from other types of random access 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// containers: 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// void Foo(const std::vector<std::string>& input) 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// { 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// WebVector<WebCString> cstrings = input; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// ... 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// } 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)template <typename T> 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)class WebVector { 652a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)public: 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) typedef T ValueType; 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ~WebVector() 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) destroy(); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit WebVector(size_t size = 0) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 752a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) initialize(size); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) template <typename U> 792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WebVector(const U* values, size_t size) 802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) initializeFrom(values, size); 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebVector(const WebVector<T>& other) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) initializeFrom(other.m_ptr, other.m_size); 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) template <typename C> 902a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WebVector(const C& other) 912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) initializeFrom(other.size() ? &other[0] : 0, other.size()); 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) WebVector& operator=(const WebVector& other) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (this != &other) 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assign(other); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1022a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) template <typename C> 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) WebVector<T>& operator=(const C& other) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (this != reinterpret_cast<const WebVector<T>*>(&other)) 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assign(other); 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return *this; 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) template <typename C> 1112a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void assign(const C& other) 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) assign(other.size() ? &other[0] : 0, other.size()); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) template <typename U> 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void assign(const U* values, size_t size) 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) destroy(); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) initializeFrom(values, size); 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t size() const { return m_size; } 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool isEmpty() const { return !m_size; } 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1262a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) T& operator[](size_t i) 1272a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) BLINK_ASSERT(i < m_size); 1292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return m_ptr[i]; 1302a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1312a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const T& operator[](size_t i) const 1322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 1332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) BLINK_ASSERT(i < m_size); 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return m_ptr[i]; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool contains(const T& value) const 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < m_size; i++) { 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (m_ptr[i] == value) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* data() { return m_ptr; } 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const T* data() const { return m_ptr; } 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void swap(WebVector<T>& other) 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::swap(m_ptr, other.m_ptr); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::swap(m_size, other.m_size); 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)private: 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void initialize(size_t size) 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validateSize(size); 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) m_size = size; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!m_size) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) m_ptr = 0; 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) m_ptr = static_cast<T*>(::operator new(sizeof(T) * m_size)); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < m_size; ++i) 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new (&m_ptr[i]) T(); 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) template <typename U> 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void initializeFrom(const U* values, size_t size) 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) validateSize(size); 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) m_size = size; 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!m_size) 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) m_ptr = 0; 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) m_ptr = static_cast<T*>(::operator new(sizeof(T) * m_size)); 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < m_size; ++i) 1792a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) new (&m_ptr[i]) T(values[i]); 1802a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1812a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) } 1822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 1832a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void validateSize(size_t size) 1842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) { 1852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (std::numeric_limits<size_t>::max() / sizeof(T) < size) 1862a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) abort(); 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void destroy() 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) { 1912a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) for (size_t i = 0; i < m_size; ++i) 1922a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) m_ptr[i].~T(); 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ::operator delete(m_ptr); 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) T* m_ptr; 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t m_size; 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace blink 2012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)