Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(126)

Side by Side Diff: gin/converter.h

Issue 67763002: Add gin, a lightweight bindings system for V8 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Address Aaron's comments Created 7 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « gin/array_buffer.cc ('k') | gin/converter.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
(Empty)
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
3 // found in the LICENSE file.
4
5 #ifndef GIN_CONVERTER_H_
6 #define GIN_CONVERTER_H_
7
8 #include <string>
9 #include <vector>
10
11 #include "v8/include/v8.h"
12
13 namespace gin {
14
15 template<typename T>
16 struct Converter {};
17
18 template<>
19 struct Converter<bool> {
20 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
21 bool val);
22 static bool FromV8(v8::Handle<v8::Value> val,
23 bool* out);
24 };
25
26 template<>
27 struct Converter<int32_t> {
28 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
29 int32_t val);
30 static bool FromV8(v8::Handle<v8::Value> val,
31 int32_t* out);
32 };
33
34 template<>
35 struct Converter<uint32_t> {
36 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
37 uint32_t val);
38 static bool FromV8(v8::Handle<v8::Value> val,
39 uint32_t* out);
40 };
41
42 template<>
43 struct Converter<double> {
44 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
45 double val);
46 static bool FromV8(v8::Handle<v8::Value> val,
47 double* out);
48 };
49
50 template<>
51 struct Converter<std::string> {
52 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
53 const std::string& val);
54 static bool FromV8(v8::Handle<v8::Value> val,
55 std::string* out);
56 };
57
58 template<>
59 struct Converter<v8::Handle<v8::Function> > {
60 static bool FromV8(v8::Handle<v8::Value> val,
61 v8::Handle<v8::Function>* out);
62 };
63
64 template<>
65 struct Converter<v8::Handle<v8::Object> > {
66 static v8::Handle<v8::Value> ToV8(v8::Handle<v8::Object> val);
67 static bool FromV8(v8::Handle<v8::Value> val,
68 v8::Handle<v8::Object>* out);
69 };
70
71 template<typename T>
72 struct Converter<std::vector<T> > {
73 static v8::Handle<v8::Value> ToV8(v8::Isolate* isolate,
74 const std::vector<T>& val) {
75 v8::Handle<v8::Array> result(v8::Array::New(static_cast<int>(val.size())));
76 for (size_t i = 0; i < val.size(); ++i) {
77 result->Set(static_cast<int>(i), Converter<T>::ToV8(isolate, val[i]));
78 }
79 return result;
80 }
81
82 static bool FromV8(v8::Handle<v8::Value> val,
83 std::vector<T>* out) {
84 if (!val->IsArray())
85 return false;
86
87 std::vector<T> result;
88 v8::Handle<v8::Array> array(v8::Handle<v8::Array>::Cast(val));
89 uint32_t length = array->Length();
90 for (uint32_t i = 0; i < length; ++i) {
91 T item;
92 if (!Converter<T>::FromV8(array->Get(i), &item))
93 return false;
94 result.push_back(item);
95 }
96
97 out->swap(result);
98 return true;
99 }
100 };
101
102 // Convenience functions that deduce T.
103 template<typename T>
104 v8::Handle<v8::Value> ConvertToV8(v8::Isolate* isolate,
105 T input) {
106 return Converter<T>::ToV8(isolate, input);
107 }
108
109 inline v8::Handle<v8::String> StringToV8(
110 v8::Isolate* isolate, std::string input) {
111 return ConvertToV8(isolate, input).As<v8::String>();
112 }
113
114 template<typename T>
115 bool ConvertFromV8(v8::Handle<v8::Value> input, T* result) {
116 return Converter<T>::FromV8(input, result);
117 }
118
119 } // namespace gin
120
121 #endif // GIN_CONVERTER_H_
OLDNEW
« no previous file with comments | « gin/array_buffer.cc ('k') | gin/converter.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698