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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef GIN_CONVERTER_H_ | 5 #ifndef GIN_CONVERTER_H_ |
6 #define GIN_CONVERTER_H_ | 6 #define GIN_CONVERTER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "v8/include/v8.h" | 11 #include "v8/include/v8.h" |
12 | 12 |
13 namespace gin { | 13 namespace gin { |
14 | 14 |
15 template<typename T> | 15 template<typename T> |
16 struct Converter {}; | 16 struct Converter {}; |
17 | 17 |
18 template<> | 18 template<> |
19 struct Converter<bool> { | 19 struct Converter<bool> { |
20 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 20 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
21 bool val); | 21 bool val); |
22 static bool FromV8(v8::Handle<v8::Value> val, | 22 static bool FromV8(v8::Isolate* isolate, |
| 23 v8::Handle<v8::Value> val, |
23 bool* out); | 24 bool* out); |
24 }; | 25 }; |
25 | 26 |
26 template<> | 27 template<> |
27 struct Converter<int32_t> { | 28 struct Converter<int32_t> { |
28 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 29 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
29 int32_t val); | 30 int32_t val); |
30 static bool FromV8(v8::Handle<v8::Value> val, | 31 static bool FromV8(v8::Isolate* isolate, |
| 32 v8::Handle<v8::Value> val, |
31 int32_t* out); | 33 int32_t* out); |
32 }; | 34 }; |
33 | 35 |
34 template<> | 36 template<> |
35 struct Converter<uint32_t> { | 37 struct Converter<uint32_t> { |
36 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 38 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
37 uint32_t val); | 39 uint32_t val); |
38 static bool FromV8(v8::Handle<v8::Value> val, | 40 static bool FromV8(v8::Isolate* isolate, |
| 41 v8::Handle<v8::Value> val, |
39 uint32_t* out); | 42 uint32_t* out); |
40 }; | 43 }; |
41 | 44 |
42 template<> | 45 template<> |
43 struct Converter<int64_t> { | 46 struct Converter<int64_t> { |
44 // Warning: JavaScript cannot represent 64 integers precisely. | 47 // Warning: JavaScript cannot represent 64 integers precisely. |
45 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 48 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
46 int64_t val); | 49 int64_t val); |
47 static bool FromV8(v8::Handle<v8::Value> val, | 50 static bool FromV8(v8::Isolate* isolate, |
| 51 v8::Handle<v8::Value> val, |
48 int64_t* out); | 52 int64_t* out); |
49 }; | 53 }; |
50 | 54 |
51 template<> | 55 template<> |
52 struct Converter<uint64_t> { | 56 struct Converter<uint64_t> { |
53 // Warning: JavaScript cannot represent 64 integers precisely. | 57 // Warning: JavaScript cannot represent 64 integers precisely. |
54 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 58 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
55 uint64_t val); | 59 uint64_t val); |
56 static bool FromV8(v8::Handle<v8::Value> val, | 60 static bool FromV8(v8::Isolate* isolate, |
| 61 v8::Handle<v8::Value> val, |
57 uint64_t* out); | 62 uint64_t* out); |
58 }; | 63 }; |
59 | 64 |
60 template<> | 65 template<> |
61 struct Converter<double> { | 66 struct Converter<double> { |
62 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 67 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
63 double val); | 68 double val); |
64 static bool FromV8(v8::Handle<v8::Value> val, | 69 static bool FromV8(v8::Isolate* isolate, |
| 70 v8::Handle<v8::Value> val, |
65 double* out); | 71 double* out); |
66 }; | 72 }; |
67 | 73 |
68 template<> | 74 template<> |
69 struct Converter<std::string> { | 75 struct Converter<std::string> { |
70 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 76 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
71 const std::string& val); | 77 const std::string& val); |
72 static bool FromV8(v8::Handle<v8::Value> val, | 78 static bool FromV8(v8::Isolate* isolate, |
| 79 v8::Handle<v8::Value> val, |
73 std::string* out); | 80 std::string* out); |
74 }; | 81 }; |
75 | 82 |
76 template<> | 83 template<> |
77 struct Converter<v8::Handle<v8::Function> > { | 84 struct Converter<v8::Handle<v8::Function> > { |
78 static bool FromV8(v8::Handle<v8::Value> val, | 85 static bool FromV8(v8::Isolate* isolate, |
| 86 v8::Handle<v8::Value> val, |
79 v8::Handle<v8::Function>* out); | 87 v8::Handle<v8::Function>* out); |
80 }; | 88 }; |
81 | 89 |
82 template<> | 90 template<> |
83 struct Converter<v8::Handle<v8::Object> > { | 91 struct Converter<v8::Handle<v8::Object> > { |
84 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 92 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
85 v8::Handle<v8::Object> val); | 93 v8::Handle<v8::Object> val); |
86 static bool FromV8(v8::Handle<v8::Value> val, | 94 static bool FromV8(v8::Isolate* isolate, |
| 95 v8::Handle<v8::Value> val, |
87 v8::Handle<v8::Object>* out); | 96 v8::Handle<v8::Object>* out); |
88 }; | 97 }; |
89 | 98 |
90 template<> | 99 template<> |
91 struct Converter<v8::Handle<v8::ArrayBuffer> > { | 100 struct Converter<v8::Handle<v8::ArrayBuffer> > { |
92 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 101 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
93 v8::Handle<v8::ArrayBuffer> val); | 102 v8::Handle<v8::ArrayBuffer> val); |
94 static bool FromV8(v8::Handle<v8::Value> val, | 103 static bool FromV8(v8::Isolate* isolate, |
| 104 v8::Handle<v8::Value> val, |
95 v8::Handle<v8::ArrayBuffer>* out); | 105 v8::Handle<v8::ArrayBuffer>* out); |
96 }; | 106 }; |
97 | 107 |
98 template<> | 108 template<> |
99 struct Converter<v8::Handle<v8::External> > { | 109 struct Converter<v8::Handle<v8::External> > { |
100 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 110 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
101 v8::Handle<v8::External> val); | 111 v8::Handle<v8::External> val); |
102 static bool FromV8(v8::Handle<v8::Value> val, | 112 static bool FromV8(v8::Isolate* isolate, |
| 113 v8::Handle<v8::Value> val, |
103 v8::Handle<v8::External>* out); | 114 v8::Handle<v8::External>* out); |
104 }; | 115 }; |
105 | 116 |
106 template<> | 117 template<> |
107 struct Converter<v8::Handle<v8::Value> > { | 118 struct Converter<v8::Handle<v8::Value> > { |
108 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 119 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
109 v8::Handle<v8::Value> val); | 120 v8::Handle<v8::Value> val); |
110 static bool FromV8(v8::Handle<v8::Value> val, | 121 static bool FromV8(v8::Isolate* isolate, |
| 122 v8::Handle<v8::Value> val, |
111 v8::Handle<v8::Value>* out); | 123 v8::Handle<v8::Value>* out); |
112 }; | 124 }; |
113 | 125 |
114 template<typename T> | 126 template<typename T> |
115 struct Converter<std::vector<T> > { | 127 struct Converter<std::vector<T> > { |
116 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, | 128 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate, |
117 const std::vector<T>& val) { | 129 const std::vector<T>& val) { |
118 v8::Handle<v8::Array> result(v8::Array::New(static_cast<int>(val.size()))); | 130 v8::Handle<v8::Array> result(v8::Array::New(static_cast<int>(val.size()))); |
119 for (size_t i = 0; i < val.size(); ++i) { | 131 for (size_t i = 0; i < val.size(); ++i) { |
120 result->Set(static_cast<int>(i), Converter<T>::ToV8(isolate, val[i])); | 132 result->Set(static_cast<int>(i), Converter<T>::ToV8(isolate, val[i])); |
121 } | 133 } |
122 return result; | 134 return result; |
123 } | 135 } |
124 | 136 |
125 static bool FromV8(v8::Handle<v8::Value> val, | 137 static bool FromV8(v8::Isolate* isolate, |
| 138 v8::Handle<v8::Value> val, |
126 std::vector<T>* out) { | 139 std::vector<T>* out) { |
127 if (!val->IsArray()) | 140 if (!val->IsArray()) |
128 return false; | 141 return false; |
129 | 142 |
130 std::vector<T> result; | 143 std::vector<T> result; |
131 v8::Handle<v8::Array> array(v8::Handle<v8::Array>::Cast(val)); | 144 v8::Handle<v8::Array> array(v8::Handle<v8::Array>::Cast(val)); |
132 uint32_t length = array->Length(); | 145 uint32_t length = array->Length(); |
133 for (uint32_t i = 0; i < length; ++i) { | 146 for (uint32_t i = 0; i < length; ++i) { |
134 T item; | 147 T item; |
135 if (!Converter<T>::FromV8(array->Get(i), &item)) | 148 if (!Converter<T>::FromV8(isolate, array->Get(i), &item)) |
136 return false; | 149 return false; |
137 result.push_back(item); | 150 result.push_back(item); |
138 } | 151 } |
139 | 152 |
140 out->swap(result); | 153 out->swap(result); |
141 return true; | 154 return true; |
142 } | 155 } |
143 }; | 156 }; |
144 | 157 |
145 // Convenience functions that deduce T. | 158 // Convenience functions that deduce T. |
146 template<typename T> | 159 template<typename T> |
147 v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate, | 160 v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate, |
148 T input) { | 161 T input) { |
149 return Converter<T>::ToV8(isolate, input); | 162 return Converter<T>::ToV8(isolate, input); |
150 } | 163 } |
151 | 164 |
152 inline v8::Handle<v8::String> StringToV8( | 165 inline v8::Handle<v8::String> StringToV8(v8::Isolate* isolate, |
153 v8::Isolate* isolate, std::string input) { | 166 std::string input) { |
154 return ConvertToV8(isolate, input).As<v8::String>(); | 167 return ConvertToV8(isolate, input).As<v8::String>(); |
155 } | 168 } |
156 | 169 |
157 v8::Handle<v8::String> StringToSymbol(v8::Isolate* isolate, | 170 v8::Handle<v8::String> StringToSymbol(v8::Isolate* isolate, |
158 const std::string& val); | 171 const std::string& val); |
159 | 172 |
160 template<typename T> | 173 template<typename T> |
161 bool ConvertFromV8(v8::Handle<v8::Value> input, T* result) { | 174 bool ConvertFromV8(v8::Isolate* isolate, v8::Handle<v8::Value> input, |
162 return Converter<T>::FromV8(input, result); | 175 T* result) { |
| 176 return Converter<T>::FromV8(isolate, input, result); |
163 } | 177 } |
164 | 178 |
165 std::string V8ToString(v8::Handle<v8::Value> value); | 179 std::string V8ToString(v8::Handle<v8::Value> value); |
166 | 180 |
167 } // namespace gin | 181 } // namespace gin |
168 | 182 |
169 #endif // GIN_CONVERTER_H_ | 183 #endif // GIN_CONVERTER_H_ |
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