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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 String16WTF_h | |
6 #define String16WTF_h | |
7 | |
8 #include "platform/Decimal.h" | |
9 #include "public/platform/WebString.h" | |
10 #include "wtf/text/StringBuilder.h" | |
11 #include "wtf/text/StringConcatenate.h" | |
12 #include "wtf/text/StringHash.h" | |
13 #include "wtf/text/StringToNumber.h" | |
14 #include "wtf/text/WTFString.h" | |
15 | |
16 namespace blink { | |
17 namespace protocol { | |
18 | |
19 class PLATFORM_EXPORT String16 : public String16Base<String16, UChar> { | |
20 public: | |
21 static const size_t kNotFound = WTF::kNotFound; | |
22 | |
23 String16() { } | |
24 String16(const String16& other) : m_impl(other.m_impl) { } | |
25 String16(const UChar* characters, unsigned length) : m_impl(characters, leng
th) { } | |
26 String16(const char* characters) : String16(characters, strlen(characters))
{ } | |
27 String16(const char* characters, size_t length) | |
28 { | |
29 UChar* data; | |
30 m_impl = WTF::String::createUninitialized(length, data); | |
31 for (size_t i = 0; i < length; ++i) | |
32 data[i] = characters[i]; | |
33 } | |
34 | |
35 ~String16() { } | |
36 | |
37 String16 isolatedCopy() const { return String16(m_impl.isolatedCopy()); } | |
38 const UChar* characters16() const { return m_impl.isEmpty() ? nullptr : m_im
pl.characters16(); } | |
39 size_t length() const { return m_impl.length(); } | |
40 bool isEmpty() const { return m_impl.isEmpty(); } | |
41 UChar operator[](unsigned index) const { return m_impl[index]; } | |
42 String16 substring(unsigned pos, unsigned len = UINT_MAX) const { return m_i
mpl.substring(pos, len); } | |
43 size_t find(const String16& str, unsigned start = 0) const { return m_impl.f
ind(str.impl(), start); } | |
44 size_t reverseFind(const String16& str, unsigned start = UINT_MAX) const { r
eturn m_impl.reverseFind(str.impl(), start); } | |
45 void swap(String16& other) { m_impl.swap(other.m_impl); } | |
46 | |
47 // WTF convenience constructors and helper methods. | |
48 String16(const WebString& other) : String16(String(other)) { } | |
49 template<typename StringType1, typename StringType2> | |
50 String16(const WTF::StringAppend<StringType1, StringType2>& impl) : String16
(String(impl)) { } | |
51 String16(const WTF::AtomicString& impl) : String16(String(impl)) { } | |
52 String16(const WTF::String& impl) : m_impl(impl) { m_impl.ensure16Bit(); } | |
53 String16(WTF::HashTableDeletedValueType) : m_impl(WTF::HashTableDeletedValue
) { } | |
54 bool isHashTableDeletedValue() const { return m_impl.isHashTableDeletedValue
(); } | |
55 operator WTF::String() const { return m_impl; } | |
56 operator WebString() { return m_impl; } | |
57 const WTF::String& impl() const { return m_impl; } | |
58 | |
59 private: | |
60 WTF::String m_impl; | |
61 }; | |
62 | |
63 inline bool operator==(const String16& a, const String16& b) { return a.impl() =
= b.impl(); } | |
64 inline bool operator!=(const String16& a, const String16& b) { return a.impl() !
= b.impl(); } | |
65 inline bool operator==(const String16& a, const char* b) { return a.impl() == b;
} | |
66 inline String16 operator+(const String16& a, const char* b) { return String16(a.
impl() + b); } | |
67 inline String16 operator+(const char* a, const String16& b) { return String16(a
+ b.impl()); } | |
68 inline String16 operator+(const String16& a, const String16& b) { return String1
6(a.impl() + b.impl()); } | |
69 | |
70 } // namespace protocol | |
71 } // namespace blink | |
72 | |
73 namespace std { | |
74 template<> struct hash<blink::protocol::String16> { | |
75 std::size_t operator()(const blink::protocol::String16& string) const | |
76 { | |
77 return StringHash::hash(string.impl()); | |
78 } | |
79 }; | |
80 } // namespace std | |
81 | |
82 using InspectorProtocolConvenienceStringType = WTF::String; | |
83 | |
84 // WTF helpers below this line. | |
85 | |
86 namespace WTF { | |
87 | |
88 struct String16Hash { | |
89 static unsigned hash(const blink::protocol::String16& key) { return StringHa
sh::hash(key.impl()); } | |
90 static bool equal(const blink::protocol::String16& a, const blink::protocol:
:String16& b) | |
91 { | |
92 return StringHash::equal(a.impl(), b.impl()); | |
93 } | |
94 static const bool safeToCompareToEmptyOrDeleted = false; | |
95 }; | |
96 | |
97 template<typename T> struct DefaultHash; | |
98 template<> struct DefaultHash<blink::protocol::String16> { | |
99 typedef String16Hash Hash; | |
100 }; | |
101 | |
102 template<> | |
103 struct HashTraits<blink::protocol::String16> : SimpleClassHashTraits<blink::prot
ocol::String16> { | |
104 static const bool hasIsEmptyValueFunction = true; | |
105 static bool isEmptyValue(const blink::protocol::String16& a) { return a.impl
().isNull(); } | |
106 }; | |
107 | |
108 } // namespace WTF | |
109 | |
110 #endif // !defined(String16WTF_h) | |
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