text: /*
   * Copyright (c) 2010, Google Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef V8_INSPECTOR_V8_INSPECTOR_IMPL_H_
  #define V8_INSPECTOR_V8_INSPECTOR_IMPL_H_
  
  #include <functional>
  #include <map>
  
  #include "src/base/macros.h"
  #include "src/inspector/protocol/Protocol.h"
  
  #include "include/v8-inspector.h"
  
  namespace v8_inspector {
  
  class InspectedContext;
  class V8Console;
  class V8ConsoleMessageStorage;
  class V8Debugger;
  class V8DebuggerAgentImpl;
  class V8InspectorSessionImpl;
  class V8ProfilerAgentImpl;
  class V8RuntimeAgentImpl;
  class V8StackTraceImpl;
  
  class V8InspectorImpl : public V8Inspector {
   public:
    V8InspectorImpl(v8::Isolate*, V8InspectorClient*);
    ~V8InspectorImpl() override;
  
    v8::Isolate* isolate() const { return m_isolate; }
    V8InspectorClient* client() { return m_client; }
    V8Debugger* debugger() { return m_debugger.get(); }
    int contextGroupId(v8::Local<v8::Context>) const;
    int contextGroupId(int contextId) const;
  
    v8::MaybeLocal<v8::Value> compileAndRunInternalScript(v8::Local<v8::Context>,
                                                          v8::Local<v8::String>);
    v8::MaybeLocal<v8::Script> compileScript(v8::Local<v8::Context>,
                                             const String16& code,
                                             const String16& fileName);
    v8::Local<v8::Context> regexContext();
  
    // V8Inspector implementation.
    std::unique_ptr<V8InspectorSession> connect(int contextGroupId,
                                                V8Inspector::Channel*,
                                                const StringView& state) override;
    void contextCreated(const V8ContextInfo&) override;
    void contextDestroyed(v8::Local<v8::Context>) override;
    void contextCollected(int contextGroupId, int contextId);
    void resetContextGroup(int contextGroupId) override;
    void idleStarted() override;
    void idleFinished() override;
    unsigned exceptionThrown(v8::Local<v8::Context>, const StringView& message,
                             v8::Local<v8::Value> exception,
                             const StringView& detailedMessage,
                             const StringView& url, unsigned lineNumber,
                             unsigned columnNumber, std::unique_ptr<V8StackTrace>,
                             int scriptId) override;
    void exceptionRevoked(v8::Local<v8::Context>, unsigned exceptionId,
                          const StringView& message) override;
    std::unique_ptr<V8StackTrace> createStackTrace(
        v8::Local<v8::StackTrace>) override;
    std::unique_ptr<V8StackTrace> captureStackTrace(bool fullStack) override;
    void asyncTaskScheduled(const StringView& taskName, void* task,
                            bool recurring) override;
    void asyncTaskCanceled(void* task) override;
    void asyncTaskStarted(void* task) override;
    void asyncTaskFinished(void* task) override;
    void allAsyncTasksCanceled() override;
  
    V8StackTraceId storeCurrentStackTrace(const StringView& description) override;
    void externalAsyncTaskStarted(const V8StackTraceId& parent) override;
    void externalAsyncTaskFinished(const V8StackTraceId& parent) override;
  
    unsigned nextExceptionId() { return ++m_lastExceptionId; }
    void enableStackCapturingIfNeeded();
    void disableStackCapturingIfNeeded();
    void muteExceptions(int contextGroupId);
    void unmuteExceptions(int contextGroupId);
    V8ConsoleMessageStorage* ensureConsoleMessageStorage(int contextGroupId);
    bool hasConsoleMessageStorage(int contextGroupId);
    void discardInspectedContext(int contextGroupId, int contextId);
    void disconnect(V8InspectorSessionImpl*);
    V8InspectorSessionImpl* sessionById(int contextGroupId, int sessionId);
    InspectedContext* getContext(int groupId, int contextId) const;
    InspectedContext* getContext(int contextId) const;
    V8Console* console();
    void forEachContext(int contextGroupId,
                        std::function<void(InspectedContext*)> callback);
    void forEachSession(int contextGroupId,
                        std::function<void(V8InspectorSessionImpl*)> callback);
  
   private:
    v8::Isolate* m_isolate;
    V8InspectorClient* m_client;
    std::unique_ptr<V8Debugger> m_debugger;
    v8::Global<v8::Context> m_regexContext;
    int m_capturingStackTracesCount;
    unsigned m_lastExceptionId;
    int m_lastContextId;
    int m_lastSessionId = 0;
  
    using MuteExceptionsMap = protocol::HashMap<int, int>;
    MuteExceptionsMap m_muteExceptionsMap;
  
    using ContextByIdMap =
        protocol::HashMap<int, std::unique_ptr<InspectedContext>>;
    using ContextsByGroupMap =
        protocol::HashMap<int, std::unique_ptr<ContextByIdMap>>;
    ContextsByGroupMap m_contexts;
  
    // contextGroupId -> sessionId -> session
    protocol::HashMap<int, std::map<int, V8InspectorSessionImpl*>> m_sessions;
  
    using ConsoleStorageMap =
        protocol::HashMap<int, std::unique_ptr<V8ConsoleMessageStorage>>;
    ConsoleStorageMap m_consoleStorageMap;
  
    protocol::HashMap<int, int> m_contextIdToGroupIdMap;
  
    std::unique_ptr<V8Console> m_console;
  
    DISALLOW_COPY_AND_ASSIGN(V8InspectorImpl);
  };
  
  }  // namespace v8_inspector
  
  #endif  // V8_INSPECTOR_V8_INSPECTOR_IMPL_H_
  