[inspector] Build inspector under v8_enable_inspector build flag.

include/v8-inspector.h

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_V8_INSPECTOR_H_
+#define V8_V8_INSPECTOR_H_
+
+#include <stdint.h>
+#include <cctype>
+
+#include <memory>
+
+#include "v8.h"  // NOLINT(build/include)
+
+namespace v8_inspector {
+
+namespace protocol {
+namespace Debugger {
+namespace API {
+class SearchMatch;
+}
+}
+namespace Runtime {
+namespace API {
+class RemoteObject;
+class StackTrace;
+}
+}
+namespace Schema {
+namespace API {
+class Domain;
+}
+}
+}  // namespace protocol
+
+class V8_EXPORT StringView {
+ public:
+  StringView() : m_is8Bit(true), m_length(0), m_characters8(nullptr) {}
+
+  StringView(const uint8_t* characters, unsigned length)
+      : m_is8Bit(true), m_length(length), m_characters8(characters) {}
+
+  StringView(const uint16_t* characters, unsigned length)
+      : m_is8Bit(false), m_length(length), m_characters16(characters) {}
+
+  bool is8Bit() const { return m_is8Bit; }
+  unsigned length() const { return m_length; }
+
+  // TODO(dgozman): add DCHECK(m_is8Bit) to accessors once platform can be used
+  // here.
+  const uint8_t* characters8() const { return m_characters8; }
+  const uint16_t* characters16() const { return m_characters16; }
+
+ private:
+  bool m_is8Bit;
+  unsigned m_length;
+  union {
+    const uint8_t* m_characters8;
+    const uint16_t* m_characters16;
+  };
+};
+
+class V8_EXPORT StringBuffer {
+ public:
+  virtual ~StringBuffer() {}
+  virtual const StringView& string() = 0;
+  // This method copies contents.
+  static std::unique_ptr<StringBuffer> create(const StringView&);
+};
+
+class V8_EXPORT V8ContextInfo {
+ public:
+  V8ContextInfo(v8::Local<v8::Context> context, int contextGroupId,
+                const StringView& humanReadableName)
+      : context(context),
+        contextGroupId(contextGroupId),
+        humanReadableName(humanReadableName),
+        hasMemoryOnConsole(false) {}
+
+  v8::Local<v8::Context> context;
+  // Each v8::Context is a part of a group. The group id must be non-zero.
+  int contextGroupId;
+  StringView humanReadableName;
+  StringView origin;
+  StringView auxData;
+  bool hasMemoryOnConsole;
+
+ private:
+  // Disallow copying and allocating this one.
+  enum NotNullTagEnum { NotNullLiteral };
+  void* operator new(size_t) = delete;
+  void* operator new(size_t, NotNullTagEnum, void*) = delete;
+  void* operator new(size_t, void*) = delete;
+  V8ContextInfo(const V8ContextInfo&) = delete;
+  V8ContextInfo& operator=(const V8ContextInfo&) = delete;
+};
+
+class V8_EXPORT V8StackTrace {
+ public:
+  virtual bool isEmpty() const = 0;
+  virtual StringView topSourceURL() const = 0;
+  virtual int topLineNumber() const = 0;
+  virtual int topColumnNumber() const = 0;
+  virtual StringView topScriptId() const = 0;
+  virtual StringView topFunctionName() const = 0;
+
+  virtual ~V8StackTrace() {}
+  virtual std::unique_ptr<protocol::Runtime::API::StackTrace>
+  buildInspectorObject() const = 0;
+  virtual std::unique_ptr<StringBuffer> toString() const = 0;
+
+  // Safe to pass between threads, drops async chain.
+  virtual std::unique_ptr<V8StackTrace> clone() = 0;
+};
+
+class V8_EXPORT V8InspectorSession {
+ public:
+  virtual ~V8InspectorSession() {}
+
+  // Cross-context inspectable values (DOM nodes in different worlds, etc.).
+  class V8_EXPORT Inspectable {
+   public:
+    virtual v8::Local<v8::Value> get(v8::Local<v8::Context>) = 0;
+    virtual ~Inspectable() {}
+  };
+  virtual void addInspectedObject(std::unique_ptr<Inspectable>) = 0;
+
+  // Dispatching protocol messages.
+  static bool canDispatchMethod(const StringView& method);
+  virtual void dispatchProtocolMessage(const StringView& message) = 0;
+  virtual std::unique_ptr<StringBuffer> stateJSON() = 0;
+  virtual std::vector<std::unique_ptr<protocol::Schema::API::Domain>>
+  supportedDomains() = 0;
+
+  // Debugger actions.
+  virtual void schedulePauseOnNextStatement(const StringView& breakReason,
+                                            const StringView& breakDetails) = 0;
+  virtual void cancelPauseOnNextStatement() = 0;
+  virtual void breakProgram(const StringView& breakReason,
+                            const StringView& breakDetails) = 0;
+  virtual void setSkipAllPauses(bool) = 0;
+  virtual void resume() = 0;
+  virtual void stepOver() = 0;
+  virtual std::vector<std::unique_ptr<protocol::Debugger::API::SearchMatch>>
+  searchInTextByLines(const StringView& text, const StringView& query,
+                      bool caseSensitive, bool isRegex) = 0;
+
+  // Remote objects.
+  virtual std::unique_ptr<protocol::Runtime::API::RemoteObject> wrapObject(
+      v8::Local<v8::Context>, v8::Local<v8::Value>,
+      const StringView& groupName) = 0;
+  virtual bool unwrapObject(std::unique_ptr<StringBuffer>* error,
+                            const StringView& objectId, v8::Local<v8::Value>*,
+                            v8::Local<v8::Context>*,
+                            std::unique_ptr<StringBuffer>* objectGroup) = 0;
+  virtual void releaseObjectGroup(const StringView&) = 0;
+};
+
+enum class V8ConsoleAPIType { kClear, kDebug, kLog, kInfo, kWarning, kError };
+
+class V8_EXPORT V8InspectorClient {
+ public:
+  virtual ~V8InspectorClient() {}
+
+  virtual void runMessageLoopOnPause(int contextGroupId) {}
+  virtual void quitMessageLoopOnPause() {}
+  virtual void runIfWaitingForDebugger(int contextGroupId) {}
+
+  virtual void muteMetrics(int contextGroupId) {}
+  virtual void unmuteMetrics(int contextGroupId) {}
+
+  virtual void beginUserGesture() {}
+  virtual void endUserGesture() {}
+
+  virtual std::unique_ptr<StringBuffer> valueSubtype(v8::Local<v8::Value>) {
+    return nullptr;
+  }
+  virtual bool formatAccessorsAsProperties(v8::Local<v8::Value>) {
+    return false;
+  }
+  virtual bool isInspectableHeapObject(v8::Local<v8::Object>) { return true; }
+
+  virtual v8::Local<v8::Context> ensureDefaultContextInGroup(
+      int contextGroupId) {
+    return v8::Local<v8::Context>();
+  }
+  virtual void beginEnsureAllContextsInGroup(int contextGroupId) {}
+  virtual void endEnsureAllContextsInGroup(int contextGroupId) {}
+
+  virtual void installAdditionalCommandLineAPI(v8::Local<v8::Context>,
+                                               v8::Local<v8::Object>) {}
+  virtual void consoleAPIMessage(int contextGroupId, V8ConsoleAPIType,
+                                 const StringView& message,
+                                 const StringView& url, unsigned lineNumber,
+                                 unsigned columnNumber, V8StackTrace*) {}
+  virtual v8::MaybeLocal<v8::Value> memoryInfo(v8::Isolate*,
+                                               v8::Local<v8::Context>) {
+    return v8::MaybeLocal<v8::Value>();
+  }
+
+  virtual void consoleTime(const StringView& title) {}
+  virtual void consoleTimeEnd(const StringView& title) {}
+  virtual void consoleTimeStamp(const StringView& title) {}
+  virtual double currentTimeMS() { return 0; }
+  typedef void (*TimerCallback)(void*);
+  virtual void startRepeatingTimer(double, TimerCallback, void* data) {}
+  virtual void cancelTimer(void* data) {}
+
+  // TODO(dgozman): this was added to support service worker shadow page. We
+  // should not connect at all.
+  virtual bool canExecuteScripts(int contextGroupId) { return true; }
+};
+
+class V8_EXPORT V8Inspector {
+ public:
+  static std::unique_ptr<V8Inspector> create(v8::Isolate*, V8InspectorClient*);
+  virtual ~V8Inspector() {}
+
+  // Contexts instrumentation.
+  virtual void contextCreated(const V8ContextInfo&) = 0;
+  virtual void contextDestroyed(v8::Local<v8::Context>) = 0;
+  virtual void resetContextGroup(int contextGroupId) = 0;
+
+  // Various instrumentation.
+  virtual void willExecuteScript(v8::Local<v8::Context>, int scriptId) = 0;
+  virtual void didExecuteScript(v8::Local<v8::Context>) = 0;
+  virtual void idleStarted() = 0;
+  virtual void idleFinished() = 0;
+
+  // Async stack traces instrumentation.
+  virtual void asyncTaskScheduled(const StringView& taskName, void* task,
+                                  bool recurring) = 0;
+  virtual void asyncTaskCanceled(void* task) = 0;
+  virtual void asyncTaskStarted(void* task) = 0;
+  virtual void asyncTaskFinished(void* task) = 0;
+  virtual void allAsyncTasksCanceled() = 0;
+
+  // Exceptions instrumentation.
+  virtual 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) = 0;
+  virtual void exceptionRevoked(v8::Local<v8::Context>, unsigned exceptionId,
+                                const StringView& message) = 0;
+
+  // Connection.
+  class V8_EXPORT Channel {
+   public:
+    virtual ~Channel() {}
+    virtual void sendProtocolResponse(int callId,
+                                      const StringView& message) = 0;
+    virtual void sendProtocolNotification(const StringView& message) = 0;
+    virtual void flushProtocolNotifications() = 0;
+  };
+  virtual std::unique_ptr<V8InspectorSession> connect(
+      int contextGroupId, Channel*, const StringView& state) = 0;
+
+  // API methods.
+  virtual std::unique_ptr<V8StackTrace> createStackTrace(
+      v8::Local<v8::StackTrace>) = 0;
+  virtual std::unique_ptr<V8StackTrace> captureStackTrace(bool fullStack) = 0;
+};
+
+}  // namespace v8_inspector
+
+#endif  // V8_V8_INSPECTOR_H_