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1 /* | |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #include "config.h" | |
32 #include "bindings/v8/V8PromiseUtilities.h" | |
33 | |
34 #include "PromiseCustomScript.h" | |
35 #include "bindings/v8/V8Binding.h" | |
36 #include "bindings/v8/V8HiddenPropertyName.h" | |
37 #include "bindings/v8/V8ScriptRunner.h" | |
38 #include "bindings/v8/V8ThrowException.h" | |
39 | |
40 #include <v8.h> | |
41 | |
42 namespace WebCore { | |
43 | |
44 v8::Handle<v8::Function> V8PromiseUtilities::promiseConstructor(v8::Isolate* iso late) | |
45 { | |
46 const char name[] = "Promise"; | |
47 v8::Local<v8::Object> global = isolate->GetCurrentContext()->Global(); | |
48 v8::Local<v8::Value> placeholderValue = global->Get(v8::String::NewSymbol(na me)); | |
49 if (placeholderValue.IsEmpty() || !placeholderValue->IsObject()) | |
50 return V8ThrowException::throwError(v8GeneralError, "The placeholder for Promise is not found.", isolate).As<v8::Function>(); | |
51 v8::Local<v8::Object> placeholder = placeholderValue.As<v8::Object>(); | |
52 v8::Handle<v8::Value> value = placeholder->GetHiddenValue(V8HiddenPropertyNa me::jsConstructor()); | |
53 if (!value.IsEmpty() && value->IsFunction()) { | |
54 // Return the stored constructor. | |
55 return value.As<v8::Function>(); | |
56 } | |
57 | |
58 value = V8ScriptRunner::compileAndRunInternalScript(v8String(String(Promise_ js, sizeof(Promise_js)), isolate), isolate); | |
59 if (value.IsEmpty()) | |
60 return v8::Handle<v8::Function>(); | |
61 if (!value->IsFunction()) | |
62 return V8ThrowException::throwError(v8TypeError, "Promise implementation must be a function.", isolate).As<v8::Function>(); | |
63 | |
64 v8::Handle<v8::Function> impl = value.As<v8::Function>(); | |
65 v8::Handle<v8::Value> args[] = { | |
66 }; | |
67 value = impl->Call(v8::Object::New(), sizeof(args) / sizeof(args[0]), &args[ 0]); | |
68 if (value.IsEmpty()) | |
69 return v8::Handle<v8::Function>(); | |
70 if (!value->IsFunction()) | |
71 return V8ThrowException::throwError(v8TypeError, "Promise constructor mu st be a function.", isolate).As<v8::Function>(); | |
72 placeholder->SetHiddenValue(V8HiddenPropertyName::jsConstructor(), value); | |
tyoshino (SeeGerritForStatus)
2013/06/17 07:51:58
check return value?
yhirano
2013/06/17 08:39:23
Done.
| |
73 return value.As<v8::Function>(); | |
74 } | |
75 | |
76 v8::Handle<v8::Value> V8PromiseUtilities::promisePrototype(v8::Isolate* isolate) | |
77 { | |
78 v8::Handle<v8::Object> constructor = promiseConstructor(isolate); | |
79 if (constructor.IsEmpty()) | |
80 return constructor; | |
81 return constructor->Get(v8::String::NewSymbol("prototype")); | |
82 } | |
83 | |
84 v8::Handle<v8::Value> V8PromiseUtilities::callUnwrappedMethod(const char* name, const v8::FunctionCallbackInfo<v8::Value>& args, v8::Handle<v8::Value> prototype ) | |
85 { | |
86 Vector<v8::Handle<v8::Value> > arguments; | |
87 for (int i = 0; i < args.Length(); ++i) | |
88 arguments.append(args[i]); | |
89 return callUnwrappedMethod(name, args.This(), arguments.size(), arguments.da ta(), args.GetIsolate(), prototype); | |
90 } | |
91 | |
92 v8::Handle<v8::Value> V8PromiseUtilities::callUnwrappedMethod(const char* name, v8::Handle<v8::Object> thisObject, | |
93 int argc, v8::Handle<v8::Value> argv[], v8::Isolate* isolate, v8::Handle<v8: :Value> prototype) | |
94 { | |
95 v8::Handle<v8::Value> that = thisObject->GetInternalField(v8DOMWrapperObject Index); | |
tyoshino (SeeGerritForStatus)
2013/06/17 07:51:58
that -> wrapper?
yhirano
2013/06/17 08:39:23
Not wrapper, but wrapped, or unwrapped.
In fact, t
| |
96 if (that.IsEmpty() || !that->IsObject()) | |
97 return V8ThrowException::throwError(v8TypeError, "This object is not an object.", isolate); | |
98 | |
99 if (prototype.IsEmpty() || !prototype->IsObject()) | |
100 return V8ThrowException::throwError(v8TypeError, "The prototypex is not an object.", isolate); | |
tyoshino (SeeGerritForStatus)
2013/06/17 07:51:58
prototypex -> prototype
yhirano
2013/06/17 08:39:23
Thanks, done.
| |
101 | |
102 v8::Local<v8::Value> property = prototype.As<v8::Object>()->Get(v8::String:: NewSymbol(name)); | |
103 if (property.IsEmpty() || !property->IsFunction()) | |
104 return V8ThrowException::throwError(v8TypeError, (std::string("The prope rty ") + name + " is not a function.").c_str(), isolate); | |
105 return property.As<v8::Function>()->Call(that.As<v8::Object>(), argc, argv); | |
106 } | |
107 | |
108 v8::Handle<v8::Value> V8PromiseUtilities::callStatic(const char* name, const v8: :FunctionCallbackInfo<v8::Value>& args, v8::Handle<v8::Value> constructor) | |
109 { | |
110 if (constructor.IsEmpty() || !constructor->IsObject()) | |
111 return V8ThrowException::throwError(v8TypeError, "The constructor object is not found.", args.GetIsolate()); | |
112 v8::Local<v8::Value> property = constructor.As<v8::Object>()->Get(v8::String ::NewSymbol(name)); | |
113 if (property.IsEmpty() || !property->IsFunction()) | |
114 return V8ThrowException::throwError(v8TypeError, (std::string("The prope rty ") + name + " is not a function.").c_str(), args.GetIsolate()); | |
tyoshino (SeeGerritForStatus)
2013/06/17 07:51:58
I still don't see any use of std::string in Blink
yhirano
2013/06/17 08:39:23
Done.
| |
115 Vector<v8::Handle<v8::Value> > arguments; | |
116 for (int i = 0; i < args.Length(); ++i) | |
117 arguments.append(args[i]); | |
118 return property.As<v8::Function>()->Call(args.This(), arguments.size(), argu ments.data()); | |
119 } | |
120 | |
121 } // namespace WebCore | |
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