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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef String16STL_h | |
| 6 #define String16STL_h | |
| 7 | |
| 8 #include <cctype> | |
| 9 #include <climits> | |
| 10 #include <cstdlib> | |
| 11 #include <cstring> | |
| 12 #include <stdint.h> | |
| 13 #include <string> | |
| 14 #include <vector> | |
| 15 | |
| 16 using UChar = uint16_t; | |
| 17 | |
| 18 namespace blink { | |
| 19 namespace protocol { | |
| 20 | |
| 21 class String16 : public String16Base<String16, UChar> { | |
| 22 public: | |
| 23 static const size_t kNotFound = static_cast<size_t>(-1); | |
| 24 | |
| 25 String16() { } | |
| 26 String16(const String16& other) : m_impl(other.m_impl) { } | |
| 27 String16(const UChar* characters, size_t size) : m_impl(characters, size) {
} | |
| 28 String16(const UChar* characters) : m_impl(characters) { } | |
| 29 String16(const char* characters) : String16(characters, std::strlen(characte
rs)) { } | |
| 30 String16(const char* characters, size_t size) | |
| 31 { | |
| 32 m_impl.resize(size); | |
| 33 for (size_t i = 0; i < size; ++i) | |
| 34 m_impl[i] = characters[i]; | |
| 35 } | |
| 36 | |
| 37 String16 isolatedCopy() const { return String16(m_impl); } | |
| 38 const UChar* characters16() const { return m_impl.c_str(); } | |
| 39 size_t length() const { return m_impl.length(); } | |
| 40 bool isEmpty() const { return !m_impl.length(); } | |
| 41 UChar operator[](unsigned index) const { return m_impl[index]; } | |
| 42 String16 substring(unsigned pos, unsigned len = UINT_MAX) const { return Str
ing16(m_impl.substr(pos, len)); } | |
| 43 size_t find(const String16& str, unsigned start = 0) const { return m_impl.f
ind(str.m_impl, start); } | |
| 44 size_t reverseFind(const String16& str, unsigned start = UINT_MAX) const { r
eturn m_impl.rfind(str.m_impl, start); } | |
| 45 void swap(String16& other) { m_impl.swap(other.m_impl); } | |
| 46 | |
| 47 // Convenience methods. | |
| 48 std::string utf8() const; | |
| 49 static String16 fromUTF8(const char* stringStart, size_t length); | |
| 50 | |
| 51 const std::basic_string<UChar>& impl() const { return m_impl; } | |
| 52 explicit String16(const std::basic_string<UChar>& impl) : m_impl(impl) { } | |
| 53 | |
| 54 std::size_t hash() const | |
| 55 { | |
| 56 if (!has_hash) { | |
| 57 size_t hash = 0; | |
| 58 for (size_t i = 0; i < length(); ++i) | |
| 59 hash = 31 * hash + m_impl[i]; | |
| 60 hash_code = hash; | |
| 61 has_hash = true; | |
| 62 } | |
| 63 return hash_code; | |
| 64 } | |
| 65 | |
| 66 private: | |
| 67 std::basic_string<UChar> m_impl; | |
| 68 mutable bool has_hash = false; | |
| 69 mutable std::size_t hash_code = 0; | |
| 70 }; | |
| 71 | |
| 72 inline bool operator==(const String16& a, const String16& b) { return a.impl() =
= b.impl(); } | |
| 73 inline bool operator<(const String16& a, const String16& b) { return a.impl() <
b.impl(); } | |
| 74 inline bool operator!=(const String16& a, const String16& b) { return a.impl() !
= b.impl(); } | |
| 75 inline bool operator==(const String16& a, const char* b) { return a.impl() == St
ring16(b).impl(); } | |
| 76 inline String16 operator+(const String16& a, const char* b) { return String16(a.
impl() + String16(b).impl()); } | |
| 77 inline String16 operator+(const char* a, const String16& b) { return String16(St
ring16(a).impl() + b.impl()); } | |
| 78 inline String16 operator+(const String16& a, const String16& b) { return String1
6(a.impl() + b.impl()); } | |
| 79 | |
| 80 } // namespace protocol | |
| 81 } // namespace blink | |
| 82 | |
| 83 #if !defined(__APPLE__) || defined(_LIBCPP_VERSION) | |
| 84 | |
| 85 namespace std { | |
| 86 template<> struct hash<blink::protocol::String16> { | |
| 87 std::size_t operator()(const blink::protocol::String16& string) const | |
| 88 { | |
| 89 return string.hash(); | |
| 90 } | |
| 91 }; | |
| 92 | |
| 93 } // namespace std | |
| 94 | |
| 95 #endif // !defined(__APPLE__) || defined(_LIBCPP_VERSION) | |
| 96 | |
| 97 class InspectorProtocolConvenienceStringType { | |
| 98 public: | |
| 99 // This class should not be ever instantiated, so we don't implement constru
ctors. | |
| 100 InspectorProtocolConvenienceStringType(); | |
| 101 InspectorProtocolConvenienceStringType(const blink::protocol::String16& othe
r); | |
| 102 operator blink::protocol::String16() const { return blink::protocol::String1
6(); }; | |
| 103 }; | |
| 104 | |
| 105 #endif // !defined(String16STL_h) | |
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