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| 1 // Copyright 2016 the V8 project 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 #include "include/libplatform/libplatform.h" | |
| 6 #include "include/v8.h" | |
| 7 | |
| 8 #include "src/base/platform/platform.h" | |
| 9 #include "src/flags.h" | |
| 10 #include "src/utils.h" | |
| 11 #include "src/vector.h" | |
| 12 | |
| 13 #include "test/inspector/inspector-impl.h" | |
| 14 #include "test/inspector/task-runner.h" | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 void Exit() { | |
| 19 fflush(stdout); | |
| 20 fflush(stderr); | |
| 21 _exit(0); | |
| 22 } | |
| 23 | |
| 24 class UtilsExtension : public v8::Extension { | |
| 25 public: | |
| 26 UtilsExtension() | |
| 27 : v8::Extension("v8_inspector/utils", | |
| 28 "native function print(); native function quit();") {} | |
| 29 virtual v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate( | |
| 30 v8::Isolate* isolate, v8::Local<v8::String> name) { | |
| 31 v8::Local<v8::Context> context = isolate->GetCurrentContext(); | |
| 32 if (name->Equals(context, v8::String::NewFromUtf8( | |
| 33 isolate, "print", v8::NewStringType::kNormal) | |
| 34 .ToLocalChecked()) | |
| 35 .FromJust()) { | |
| 36 return v8::FunctionTemplate::New(isolate, UtilsExtension::Print); | |
| 37 } else if (name->Equals(context, | |
| 38 v8::String::NewFromUtf8(isolate, "quit", | |
| 39 v8::NewStringType::kNormal) | |
| 40 .ToLocalChecked()) | |
| 41 .FromJust()) { | |
| 42 return v8::FunctionTemplate::New(isolate, UtilsExtension::Quit); | |
| 43 } | |
| 44 return v8::Local<v8::FunctionTemplate>(); | |
| 45 } | |
| 46 | |
| 47 private: | |
| 48 static void Print(const v8::FunctionCallbackInfo<v8::Value>& args) { | |
| 49 for (int i = 0; i < args.Length(); i++) { | |
| 50 v8::HandleScope handle_scope(args.GetIsolate()); | |
| 51 if (i != 0) { | |
| 52 printf(" "); | |
| 53 } | |
| 54 | |
| 55 // Explicitly catch potential exceptions in toString(). | |
| 56 v8::TryCatch try_catch(args.GetIsolate()); | |
| 57 v8::Local<v8::Value> arg = args[i]; | |
| 58 v8::Local<v8::String> str_obj; | |
| 59 | |
| 60 if (arg->IsSymbol()) { | |
| 61 arg = v8::Local<v8::Symbol>::Cast(arg)->Name(); | |
| 62 } | |
| 63 if (!arg->ToString(args.GetIsolate()->GetCurrentContext()) | |
| 64 .ToLocal(&str_obj)) { | |
| 65 try_catch.ReThrow(); | |
| 66 return; | |
| 67 } | |
| 68 | |
| 69 v8::String::Utf8Value str(str_obj); | |
| 70 int n = | |
| 71 static_cast<int>(fwrite(*str, sizeof(**str), str.length(), stdout)); | |
| 72 if (n != str.length()) { | |
| 73 printf("Error in fwrite\n"); | |
| 74 Quit(args); | |
| 75 } | |
| 76 } | |
| 77 printf("\n"); | |
| 78 fflush(stdout); | |
| 79 } | |
| 80 | |
| 81 static void Quit(const v8::FunctionCallbackInfo<v8::Value>& args) { Exit(); } | |
| 82 }; | |
| 83 | |
| 84 class SetTimeoutTask : public TaskRunner::Task { | |
| 85 public: | |
| 86 SetTimeoutTask(v8::Isolate* isolate, v8::Local<v8::Function> function) | |
| 87 : function_(isolate, function) {} | |
| 88 virtual ~SetTimeoutTask() {} | |
| 89 | |
| 90 bool is_inspector_task() final { return false; } | |
| 91 | |
| 92 void Run(v8::Isolate* isolate, | |
| 93 const v8::Global<v8::Context>& global_context) override { | |
| 94 v8::MicrotasksScope microtasks_scope(isolate, | |
| 95 v8::MicrotasksScope::kRunMicrotasks); | |
| 96 v8::HandleScope handle_scope(isolate); | |
| 97 v8::Local<v8::Context> context = global_context.Get(isolate); | |
| 98 v8::Context::Scope context_scope(context); | |
| 99 | |
| 100 v8::Local<v8::Function> function = function_.Get(isolate); | |
| 101 v8::MaybeLocal<v8::Value> result; | |
| 102 v8_inspector::V8Inspector* inspector = | |
| 103 InspectorClientImpl::InspectorFromContext(context); | |
| 104 if (inspector) inspector->willExecuteScript(context, function->ScriptId()); | |
| 105 result = function->Call(context, context->Global(), 0, nullptr); | |
| 106 if (inspector) inspector->didExecuteScript(context); | |
| 107 } | |
| 108 | |
| 109 private: | |
| 110 v8::Global<v8::Function> function_; | |
| 111 }; | |
| 112 | |
| 113 class SetTimeoutExtension : public v8::Extension { | |
| 114 public: | |
| 115 SetTimeoutExtension() | |
| 116 : v8::Extension("v8_inspector/setTimeout", | |
| 117 "native function setTimeout();") {} | |
| 118 | |
| 119 virtual v8::Local<v8::FunctionTemplate> GetNativeFunctionTemplate( | |
| 120 v8::Isolate* isolate, v8::Local<v8::String> name) { | |
| 121 return v8::FunctionTemplate::New(isolate, SetTimeoutExtension::SetTimeout); | |
| 122 } | |
| 123 | |
| 124 private: | |
| 125 static void SetTimeout(const v8::FunctionCallbackInfo<v8::Value>& args) { | |
| 126 v8::Isolate* isolate = args.GetIsolate(); | |
| 127 if (args.Length() != 2 || !args[1]->IsNumber() || !args[0]->IsFunction() || | |
| 128 args[1].As<v8::Number>()->Value() != 0.0) { | |
| 129 fprintf(stderr, | |
| 130 "Internal error: only setTimeout(function, 0) is supported."); | |
| 131 Exit(); | |
| 132 } | |
| 133 v8::Local<v8::Context> context = args.GetIsolate()->GetCurrentContext(); | |
| 134 TaskRunner::FromContext(context)->Append(new SetTimeoutTask( | |
| 135 args.GetIsolate(), v8::Local<v8::Function>::Cast(args[0]))); | |
| 136 } | |
| 137 }; | |
| 138 | |
| 139 v8_inspector::String16 ToString16(const v8_inspector::StringView& string) { | |
| 140 if (string.is8Bit()) | |
| 141 return v8_inspector::String16( | |
| 142 reinterpret_cast<const char*>(string.characters8()), string.length()); | |
| 143 return v8_inspector::String16( | |
| 144 reinterpret_cast<const uint16_t*>(string.characters16()), | |
| 145 string.length()); | |
| 146 } | |
| 147 | |
| 148 class FrontendChannelImpl : public InspectorClientImpl::FrontendChannel { | |
| 149 public: | |
| 150 explicit FrontendChannelImpl(TaskRunner* frontend_task_runner) | |
| 151 : frontend_task_runner_(frontend_task_runner) {} | |
| 152 virtual ~FrontendChannelImpl() {} | |
| 153 | |
| 154 void SendMessageToFrontend(const v8_inspector::StringView& message) final { | |
| 155 v8_inspector::String16Builder script; | |
| 156 script.append("InspectorTest.dispatchMessage("); | |
| 157 script.append(ToString16(message)); | |
| 158 script.append(")"); | |
| 159 frontend_task_runner_->Append(new ExecuteStringTask(script.toString())); | |
| 160 } | |
| 161 | |
| 162 private: | |
| 163 TaskRunner* frontend_task_runner_; | |
| 164 }; | |
| 165 | |
| 166 } // namespace | |
| 167 | |
| 168 int main(int argc, char* argv[]) { | |
| 169 v8::V8::InitializeICUDefaultLocation(argv[0]); | |
| 170 v8::Platform* platform = v8::platform::CreateDefaultPlatform(); | |
| 171 v8::V8::InitializePlatform(platform); | |
| 172 v8::internal::FlagList::SetFlagsFromCommandLine(&argc, argv, true); | |
| 173 v8::V8::InitializeExternalStartupData(argv[0]); | |
| 174 v8::V8::Initialize(); | |
| 175 | |
| 176 SetTimeoutExtension set_timeout_extension; | |
| 177 v8::RegisterExtension(&set_timeout_extension); | |
| 178 UtilsExtension utils_extension; | |
| 179 v8::RegisterExtension(&utils_extension); | |
| 180 SendMessageToBackendExtension send_message_to_backend_extension; | |
| 181 v8::RegisterExtension(&send_message_to_backend_extension); | |
| 182 | |
| 183 v8::base::Semaphore ready_semaphore(0); | |
| 184 | |
| 185 const char* backend_extensions[] = {"v8_inspector/setTimeout"}; | |
| 186 v8::ExtensionConfiguration backend_configuration( | |
| 187 arraysize(backend_extensions), backend_extensions); | |
| 188 TaskRunner backend_runner(&backend_configuration, &ready_semaphore); | |
| 189 ready_semaphore.Wait(); | |
| 190 SendMessageToBackendExtension::set_backend_task_runner(&backend_runner); | |
| 191 | |
| 192 const char* frontend_extensions[] = {"v8_inspector/utils", | |
| 193 "v8_inspector/frontend"}; | |
| 194 v8::ExtensionConfiguration frontend_configuration( | |
| 195 arraysize(frontend_extensions), frontend_extensions); | |
| 196 TaskRunner frontend_runner(&frontend_configuration, &ready_semaphore); | |
| 197 ready_semaphore.Wait(); | |
| 198 | |
| 199 FrontendChannelImpl frontend_channel(&frontend_runner); | |
| 200 InspectorClientImpl inspector_client(&backend_runner, &frontend_channel, | |
| 201 &ready_semaphore); | |
| 202 ready_semaphore.Wait(); | |
| 203 | |
| 204 for (int i = 1; i < argc; ++i) { | |
| 205 if (argv[i][0] == '-') break; | |
| 206 | |
| 207 bool exists = false; | |
| 208 v8::internal::Vector<const char> chars = | |
| 209 v8::internal::ReadFile(argv[i], &exists, true); | |
| 210 if (!exists) { | |
| 211 fprintf(stderr, "Internal error: script file doesn't exists: %s\n", | |
| 212 argv[i]); | |
| 213 Exit(); | |
| 214 } | |
| 215 v8_inspector::String16 source = | |
| 216 v8_inspector::String16::fromUTF8(chars.start(), chars.length()); | |
| 217 frontend_runner.Append(new ExecuteStringTask(source)); | |
| 218 } | |
| 219 | |
| 220 frontend_runner.Join(); | |
| 221 return 0; | |
| 222 } | |
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