e64bf9ad6c
Added Debug::GetMirror call to get a mirror for a given object. Review URL: http://codereview.chromium.org/172045 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2700 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
256 lines
8.6 KiB
C++
256 lines
8.6 KiB
C++
// Copyright 2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_V8_DEBUG_H_
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#define V8_V8_DEBUG_H_
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#include "v8.h"
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#ifdef _WIN32
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typedef int int32_t;
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typedef unsigned int uint32_t;
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typedef unsigned short uint16_t; // NOLINT
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typedef long long int64_t; // NOLINT
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// Setup for Windows DLL export/import. See v8.h in this directory for
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// information on how to build/use V8 as a DLL.
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#if defined(BUILDING_V8_SHARED) && defined(USING_V8_SHARED)
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#error both BUILDING_V8_SHARED and USING_V8_SHARED are set - please check the\
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build configuration to ensure that at most one of these is set
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#endif
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#ifdef BUILDING_V8_SHARED
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#define EXPORT __declspec(dllexport)
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#elif USING_V8_SHARED
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#define EXPORT __declspec(dllimport)
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#else
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#define EXPORT
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#endif
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#else // _WIN32
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// Setup for Linux shared library export. See v8.h in this directory for
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// information on how to build/use V8 as shared library.
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#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(V8_SHARED)
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#define EXPORT __attribute__ ((visibility("default")))
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#else // defined(__GNUC__) && (__GNUC__ >= 4)
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#define EXPORT
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#endif // defined(__GNUC__) && (__GNUC__ >= 4)
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#endif // _WIN32
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/**
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* Debugger support for the V8 JavaScript engine.
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*/
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namespace v8 {
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// Debug events which can occur in the V8 JavaScript engine.
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enum DebugEvent {
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Break = 1,
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Exception = 2,
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NewFunction = 3,
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BeforeCompile = 4,
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AfterCompile = 5,
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ScriptCollected = 6
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};
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class EXPORT Debug {
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public:
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/**
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* A client object passed to the v8 debugger whose ownership will be taken by
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* it. v8 is always responsible for deleting the object.
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*/
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class ClientData {
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public:
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virtual ~ClientData() {}
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};
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/**
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* A message object passed to the debug message handler.
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*/
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class Message {
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public:
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/**
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* Check type of message.
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*/
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virtual bool IsEvent() const = 0;
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virtual bool IsResponse() const = 0;
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virtual DebugEvent GetEvent() const = 0;
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/**
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* Indicate whether this is a response to a continue command which will
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* start the VM running after this is processed.
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*/
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virtual bool WillStartRunning() const = 0;
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/**
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* Access to execution state and event data. Don't store these cross
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* callbacks as their content becomes invalid. These objects are from the
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* debugger event that started the debug message loop.
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*/
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virtual Handle<Object> GetExecutionState() const = 0;
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virtual Handle<Object> GetEventData() const = 0;
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/**
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* Get the debugger protocol JSON.
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*/
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virtual Handle<String> GetJSON() const = 0;
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/**
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* Get the context active when the debug event happened. Note this is not
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* the current active context as the JavaScript part of the debugger is
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* running in it's own context which is entered at this point.
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*/
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virtual Handle<Context> GetEventContext() const = 0;
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/**
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* Client data passed with the corresponding request if any. This is the
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* client_data data value passed into Debug::SendCommand along with the
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* request that led to the message or NULL if the message is an event. The
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* debugger takes ownership of the data and will delete it even if there is
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* no message handler.
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*/
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virtual ClientData* GetClientData() const = 0;
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virtual ~Message() {}
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};
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/**
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* Debug event callback function.
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*
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* \param event the type of the debug event that triggered the callback
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* (enum DebugEvent)
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* \param exec_state execution state (JavaScript object)
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* \param event_data event specific data (JavaScript object)
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* \param data value passed by the user to SetDebugEventListener
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*/
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typedef void (*EventCallback)(DebugEvent event,
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Handle<Object> exec_state,
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Handle<Object> event_data,
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Handle<Value> data);
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/**
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* Debug message callback function.
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*
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* \param message the debug message handler message object
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* \param length length of the message
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* \param client_data the data value passed when registering the message handler
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* A MessageHandler does not take posession of the message string,
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* and must not rely on the data persisting after the handler returns.
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*
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* This message handler is deprecated. Use MessageHandler2 instead.
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*/
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typedef void (*MessageHandler)(const uint16_t* message, int length,
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ClientData* client_data);
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/**
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* Debug message callback function.
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*
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* \param message the debug message handler message object
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* A MessageHandler does not take posession of the message data,
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* and must not rely on the data persisting after the handler returns.
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*/
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typedef void (*MessageHandler2)(const Message& message);
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/**
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* Debug host dispatch callback function.
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*/
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typedef void (*HostDispatchHandler)();
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// Set a C debug event listener.
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static bool SetDebugEventListener(EventCallback that,
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Handle<Value> data = Handle<Value>());
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// Set a JavaScript debug event listener.
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static bool SetDebugEventListener(v8::Handle<v8::Object> that,
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Handle<Value> data = Handle<Value>());
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// Break execution of JavaScript.
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static void DebugBreak();
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// Message based interface. The message protocol is JSON. NOTE the message
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// handler thread is not supported any more parameter must be false.
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static void SetMessageHandler(MessageHandler handler,
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bool message_handler_thread = false);
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static void SetMessageHandler2(MessageHandler2 handler);
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static void SendCommand(const uint16_t* command, int length,
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ClientData* client_data = NULL);
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// Dispatch interface.
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static void SetHostDispatchHandler(HostDispatchHandler handler,
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int period = 100);
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/**
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* Run a JavaScript function in the debugger.
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* \param fun the function to call
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* \param data passed as second argument to the function
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* With this call the debugger is entered and the function specified is called
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* with the execution state as the first argument. This makes it possible to
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* get access to information otherwise not available during normal JavaScript
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* execution e.g. details on stack frames. The following example show a
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* JavaScript function which when passed to v8::Debug::Call will return the
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* current line of JavaScript execution.
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*
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* \code
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* function frame_source_line(exec_state) {
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* return exec_state.frame(0).sourceLine();
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* }
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* \endcode
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*/
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static Local<Value> Call(v8::Handle<v8::Function> fun,
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Handle<Value> data = Handle<Value>());
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/**
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* Returns a mirror object for the given object.
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*/
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static Local<Value> GetMirror(v8::Handle<v8::Value> obj);
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/**
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* Enable the V8 builtin debug agent. The debugger agent will listen on the
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* supplied TCP/IP port for remote debugger connection.
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* \param name the name of the embedding application
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* \param port the TCP/IP port to listen on
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*/
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static bool EnableAgent(const char* name, int port);
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};
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} // namespace v8
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#undef EXPORT
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#endif // V8_V8_DEBUG_H_
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