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Unified Diff: third_party/inspector_protocol/lib/DispatcherBase_cpp.template

Issue 2447323002: [inspector] use own copy of third_party/inspector_protocol (Closed)
Patch Set: updated README.v8 Created 4 years, 2 months ago
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Index: third_party/inspector_protocol/lib/DispatcherBase_cpp.template
diff --git a/third_party/inspector_protocol/lib/DispatcherBase_cpp.template b/third_party/inspector_protocol/lib/DispatcherBase_cpp.template
new file mode 100644
index 0000000000000000000000000000000000000000..76f77aae7ece7871d2db5e64aa626ea8f308a208
--- /dev/null
+++ b/third_party/inspector_protocol/lib/DispatcherBase_cpp.template
@@ -0,0 +1,173 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+//#include "DispatcherBase.h"
+//#include "Parser.h"
+
+{% for namespace in config.protocol.namespace %}
+namespace {{namespace}} {
+{% endfor %}
+
+// static
+const char DispatcherBase::kInvalidRequest[] = "Invalid request";
+
+DispatcherBase::WeakPtr::WeakPtr(DispatcherBase* dispatcher) : m_dispatcher(dispatcher) { }
+
+DispatcherBase::WeakPtr::~WeakPtr()
+{
+ if (m_dispatcher)
+ m_dispatcher->m_weakPtrs.erase(this);
+}
+
+DispatcherBase::Callback::Callback(std::unique_ptr<DispatcherBase::WeakPtr> backendImpl, int callId)
+ : m_backendImpl(std::move(backendImpl))
+ , m_callId(callId) { }
+
+DispatcherBase::Callback::~Callback() = default;
+
+void DispatcherBase::Callback::dispose()
+{
+ m_backendImpl = nullptr;
+}
+
+void DispatcherBase::Callback::sendIfActive(std::unique_ptr<protocol::DictionaryValue> partialMessage, const ErrorString& invocationError)
+{
+ if (!m_backendImpl || !m_backendImpl->get())
+ return;
+ m_backendImpl->get()->sendResponse(m_callId, invocationError, nullptr, std::move(partialMessage));
+ m_backendImpl = nullptr;
+}
+
+DispatcherBase::DispatcherBase(FrontendChannel* frontendChannel)
+ : m_frontendChannel(frontendChannel) { }
+
+DispatcherBase::~DispatcherBase()
+{
+ clearFrontend();
+}
+
+// static
+bool DispatcherBase::getCommandName(const String& message, String* result)
+{
+ std::unique_ptr<protocol::Value> value = parseJSON(message);
+ if (!value)
+ return false;
+
+ protocol::DictionaryValue* object = DictionaryValue::cast(value.get());
+ if (!object)
+ return false;
+
+ if (!object->getString("method", result))
+ return false;
+
+ return true;
+}
+
+void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError, ErrorSupport* errors, std::unique_ptr<protocol::DictionaryValue> result)
+{
+ if (invocationError.length() || (errors && errors->hasErrors())) {
+ reportProtocolError(callId, ServerError, invocationError, errors);
+ return;
+ }
+
+ std::unique_ptr<protocol::DictionaryValue> responseMessage = DictionaryValue::create();
+ responseMessage->setInteger("id", callId);
+ responseMessage->setObject("result", std::move(result));
+ if (m_frontendChannel)
+ m_frontendChannel->sendProtocolResponse(callId, responseMessage->toJSONString());
+}
+
+void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError, std::unique_ptr<protocol::DictionaryValue> result)
+{
+ sendResponse(callId, invocationError, nullptr, std::move(result));
+}
+
+void DispatcherBase::sendResponse(int callId, const ErrorString& invocationError)
+{
+ sendResponse(callId, invocationError, nullptr, DictionaryValue::create());
+}
+
+static void reportProtocolErrorTo(FrontendChannel* frontendChannel, int callId, DispatcherBase::CommonErrorCode code, const String& errorMessage, ErrorSupport* errors)
+{
+ if (!frontendChannel)
+ return;
+ std::unique_ptr<protocol::DictionaryValue> error = DictionaryValue::create();
+ error->setInteger("code", code);
+ error->setString("message", errorMessage);
+ DCHECK(error);
+ if (errors && errors->hasErrors())
+ error->setString("data", errors->errors());
+ std::unique_ptr<protocol::DictionaryValue> message = DictionaryValue::create();
+ message->setObject("error", std::move(error));
+ message->setInteger("id", callId);
+ frontendChannel->sendProtocolResponse(callId, message->toJSONString());
+}
+
+void DispatcherBase::reportProtocolError(int callId, CommonErrorCode code, const String& errorMessage, ErrorSupport* errors)
+{
+ reportProtocolErrorTo(m_frontendChannel, callId, code, errorMessage, errors);
+}
+
+void DispatcherBase::clearFrontend()
+{
+ m_frontendChannel = nullptr;
+ for (auto& weak : m_weakPtrs)
+ weak->dispose();
+ m_weakPtrs.clear();
+}
+
+std::unique_ptr<DispatcherBase::WeakPtr> DispatcherBase::weakPtr()
+{
+ std::unique_ptr<DispatcherBase::WeakPtr> weak(new DispatcherBase::WeakPtr(this));
+ m_weakPtrs.insert(weak.get());
+ return weak;
+}
+
+UberDispatcher::UberDispatcher(FrontendChannel* frontendChannel)
+ : m_frontendChannel(frontendChannel) { }
+
+void UberDispatcher::registerBackend(const String& name, std::unique_ptr<protocol::DispatcherBase> dispatcher)
+{
+ m_dispatchers[name] = std::move(dispatcher);
+}
+
+void UberDispatcher::dispatch(std::unique_ptr<Value> parsedMessage)
+{
+ if (!parsedMessage)
+ return;
+ std::unique_ptr<protocol::DictionaryValue> messageObject = DictionaryValue::cast(std::move(parsedMessage));
+ if (!messageObject)
+ return;
+
+ int callId = 0;
+ protocol::Value* callIdValue = messageObject->get("id");
+ bool success = callIdValue && callIdValue->asInteger(&callId);
+ if (!success)
+ return;
+
+ protocol::Value* methodValue = messageObject->get("method");
+ String method;
+ success = methodValue && methodValue->asString(&method);
+ if (!success)
+ return;
+
+ size_t dotIndex = method.find(".");
+ if (dotIndex == StringUtil::kNotFound) {
+ reportProtocolErrorTo(m_frontendChannel, callId, DispatcherBase::MethodNotFound, "'" + method + "' wasn't found", nullptr);
+ return;
+ }
+ String domain = StringUtil::substring(method, 0, dotIndex);
+ auto it = m_dispatchers.find(domain);
+ if (it == m_dispatchers.end()) {
+ reportProtocolErrorTo(m_frontendChannel, callId, DispatcherBase::MethodNotFound, "'" + method + "' wasn't found", nullptr);
+ return;
+ }
+ it->second->dispatch(callId, method, std::move(messageObject));
+}
+
+UberDispatcher::~UberDispatcher() = default;
+
+{% for namespace in config.protocol.namespace %}
+} // namespace {{namespace}}
+{% endfor %}

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