C++ Handle::GetEndColumn方法代码示例

void V8Util::openJSErrorDialog(TryCatch &tryCatch)
{
	JNIEnv *env = JNIUtil::getJNIEnv();
	if (!env) {
		return;
	}

	Handle<Message> message = tryCatch.Message();

	jstring title = env->NewStringUTF("Runtime Error");
	jstring errorMessage = TypeConverter::jsValueToJavaString(message->Get());
	jstring resourceName = TypeConverter::jsValueToJavaString(message->GetScriptResourceName());
	jstring sourceLine = TypeConverter::jsValueToJavaString(message->GetSourceLine());

	env->CallStaticVoidMethod(
		JNIUtil::krollRuntimeClass,
		JNIUtil::krollRuntimeDispatchExceptionMethod,
		title,
		errorMessage,
		resourceName,
		message->GetLineNumber(),
		sourceLine,
		message->GetEndColumn());

	env->DeleteLocalRef(title);
	env->DeleteLocalRef(errorMessage);
	env->DeleteLocalRef(resourceName);
	env->DeleteLocalRef(sourceLine);

}

    std::ostream& operator<<( std::ostream &s, const v8::TryCatch * try_catch ){
        HandleScope handle_scope;
        v8::String::Utf8Value exception(try_catch->Exception());
        Handle<v8::Message> message = try_catch->Message();
    
        if (message.IsEmpty()) {
            s << *exception << endl;
        } 
        else {

            v8::String::Utf8Value filename(message->GetScriptResourceName());
            int linenum = message->GetLineNumber();
            cout << *filename << ":" << linenum << " " << *exception << endl;

            v8::String::Utf8Value sourceline(message->GetSourceLine());
            cout << *sourceline << endl;

            int start = message->GetStartColumn();
            for (int i = 0; i < start; i++)
                cout << " ";

            int end = message->GetEndColumn();
            for (int i = start; i < end; i++)
                cout << "^";

            cout << endl;
        }    

        //if ( try_catch->next_ ) // disabled for v8 bleeding edge
        //    s << try_catch->next_;

        return s;
    }

void ReportException(TryCatch* tryCatch)
{
    //	HandleScope handleScope;
    
	String::Utf8Value exception(tryCatch->Exception());
	const char* exceptionString = ToCString(exception);
	Handle<Message> message = tryCatch->Message();
    
	if (message.IsEmpty()) {
		// V8 didn't provide any extra information about this error; just
		// print the exception.
		throw  std::runtime_error("Unknown error "+ std::string(exceptionString));
        
	} else {
		// Print (filename):(line number): (message).
		String::Utf8Value filename(message->GetScriptResourceName());
		const char* filenameString = ToCString(filename);
		int linenum = message->GetLineNumber();
        
        std::stringstream ss;
        
        // Print filename and linenum if applicable
        if(!message->GetScriptResourceName()->IsUndefined()) {
            ss << filenameString <<":"<< linenum <<" ";
        }
        
		ss << exceptionString << std::endl;
        
		// Print line of source code.
		String::Utf8Value sourceline(message->GetSourceLine());
		const char* sourceline_string = ToCString(sourceline);
        
		ss << sourceline_string << std::endl;
        
		// Print wavy underline (GetUnderline is deprecated).
		int start = message->GetStartColumn();
		for (int i = 0; i < start; i++) {
			ss << " ";
		}
		int end = message->GetEndColumn();
		for (int i = start; i < end; i++) {
			ss << "^";
		}
		ss << std::endl;
        
		String::Utf8Value stack_trace(tryCatch->StackTrace());
		if (stack_trace.length() > 0) {
			const char* stack_trace_string = ToCString(stack_trace);
			ss << stack_trace_string;
		}
        
        throw std::runtime_error(ss.str());
	}
}

void DisplayExceptionLine (TryCatch &try_catch, std::string& err_msg) {
  // Prevent re-entry into this function.
  static bool displayed_error = false;

  if (displayed_error) return;
  displayed_error = true;

  HandleScope scope;

  Handle<Message> message = try_catch.Message();

  fprintf(stderr, "\n");
  err_msg = "JavaScript Exception\n\n";

  if (!message.IsEmpty()) {
    // Print (filename):(line number): (message).
    String::Utf8Value filename(message->GetScriptResourceName());
    const char* filename_string = *filename;
    int linenum = message->GetLineNumber();
    fprintf(stderr, "%s:%i\n", filename_string, linenum);
    err_msg += filename_string;
    err_msg += ":";
    char num_conv[10];
    sprintf(num_conv, "%i", linenum);
    err_msg += num_conv;
    err_msg += "\n";
    // Print line of source code.
    String::Utf8Value sourceline(message->GetSourceLine());
    const char* sourceline_string = *sourceline;

    int start = message->GetStartColumn();
    int end = message->GetEndColumn();

    // fprintf(stderr, "---\nsourceline:%s\noffset:%d\nstart:%d\nend:%d\n---\n", sourceline_string, start, end);

    fprintf(stderr, "%s\n", sourceline_string);
    err_msg += sourceline_string;
    err_msg += "\n";
    // Print wavy underline (GetUnderline is deprecated).
    for (int i = 0; i < start; i++) {
      fputc((sourceline_string[i] == '\t') ? '\t' : ' ', stderr);
    }
    for (int i = start; i < end; i++) {
      fputc('^', stderr);
    }
    fputc('\n', stderr);
    err_msg += "\n";
  }
}

   ////////////////////////////////////////////////////////////////////////////////
   // lifted from node.js file node.cc
   void ReportException(TryCatch *try_catch) 
   {
        
	  HandleScope scope;

      Handle<Message> message = try_catch->Message();
	  std::string filename_string = "";
	  std::string sourceline_string = "";
	  int linenum = 0;
	  int start = 0;
	  int end = 0;

      if (!message.IsEmpty()) {
       
         String::Utf8Value filename(message->GetScriptResourceName());
         filename_string = *filename;
         linenum = message->GetLineNumber();       
         String::Utf8Value sourceline(message->GetSourceLine());
         sourceline_string = *sourceline;
         start = message->GetStartColumn();       
         end = message->GetEndColumn();

      }

     String::Utf8Value trace(try_catch->StackTrace());
     std::string tracestr;

     if(trace.length() != 0)
     {
         tracestr = *trace;
     }
     
	  std::ostringstream os;
     os << std::endl << sourceline_string << std::endl;	  

	  for (int i = 0; i < start; i++) 
	  {
         os << " ";
	  }
	  for (int i = start; i < end; i++) 
	  {
         os << "^";
      }

     os << tracestr << "\n";
	 
	  std::string msg = os.str();
      dtEntity::LogManager::GetInstance().LogMessage(dtEntity::LogLevel::LVL_ERROR, filename_string, "", linenum, msg);     
   }

std::string stringifyException(const v8::TryCatch& try_catch, bool suppressBacktrace) {
	HandleScope scope;
	std::string output = "";

	Handle<Message> message = try_catch.Message();
	if (suppressBacktrace || message.IsEmpty()) {

		std::string exception_string = V8::stringToStdString(try_catch.Exception().As<String>());

		// V8 didn't provide any extra information about this error; just
		// print the exception.
		output += exception_string;
		output += "\n";

	} else {

		// filename:line
		output += V8::stringToStdString(
			message->GetScriptResourceName().As<String>()
		) + ":" + boost::lexical_cast<std::string>(
			message->GetLineNumber()
		) + "\n";

		// Print line of source code.
		output += V8::stringToStdString(message->GetSourceLine()) + "\n";

		// Print wavy underline (GetUnderline is deprecated).
		int start = message->GetStartColumn();
		for (int i = 0; i < start; i++) {
			output += " ";
		}
		int end = message->GetEndColumn();
		for (int i = start; i < end; i++) {
			output += "^";
		}
		output += "\n";

		// Print out the stack trace.
		std::string stackTrace = V8::stringToStdString(try_catch.StackTrace().As<String>());
		if (stackTrace.length() > 0) {
			output += stackTrace + "\n";
		}
	}

	return output;
}

const string JSMain::GetExceptionInfo(Isolate* isolate, TryCatch* try_catch)
{
	HandleScope handle_scope(isolate);
	String::Utf8Value exception(try_catch->Exception());
	const char *exception_string = js_safe_str(*exception);
	Handle<Message> message = try_catch->Message();
	string res;

	if (message.IsEmpty()) {
		// V8 didn't provide any extra information about this error; just return the exception.
		res = exception_string;
	} else {
		String::Utf8Value filename(message->GetScriptResourceName());
		const char *filename_string = js_safe_str(*filename);
		int linenum = message->GetLineNumber();

		ostringstream ss;

		ss << filename_string << ":" << linenum << ": " << exception_string << "\r\n";
		
		// Print line of source code.
		String::Utf8Value sourceline(message->GetSourceLine());
		const char *sourceline_string = js_safe_str(*sourceline);

		ss << sourceline_string << "\r\n";

		// Print wavy underline.
		int start = message->GetStartColumn();

		for (int i = 0; i < start; i++) {
			ss << " ";
		}

		int end = message->GetEndColumn();

		for (int i = start; i < end; i++) {
			ss << "^";
		}

		res = ss.str();
	}

	return res;
}

void SMJS_Plugin::ReportException(TryCatch* try_catch){
	HandleScope handle_scope(isolate);

	fprintf(stderr, "----------------------------- JAVASCRIPT EXCEPTION -----------------------------");

	String::Utf8Value exception(try_catch->Exception());
	const char* exception_string = ToCString(exception);
	Handle<Message> message = try_catch->Message();
	if (message.IsEmpty()) {
		// V8 didn't provide any extra information about this error; just
		// print the exception.
		fprintf(stderr, "%s\n", exception_string);
	} else {
		// Print (filename):(line number): (message).
		String::Utf8Value filename(message->GetScriptResourceName());
		const char* filename_string = ToCString(filename);
		int linenum = message->GetLineNumber();
		fprintf(stderr, "%s:%d: %s\n", filename_string, linenum, exception_string);
		// Print line of source code.
		String::Utf8Value sourceline(message->GetSourceLine());
		const char* sourceline_string = ToCString(sourceline);
		fprintf(stderr, "%s\n", sourceline_string);
		// Print wavy underline (GetUnderline is deprecated).
		int start = message->GetStartColumn();
		for (int i = 0; i < start; i++) {
			fprintf(stderr, " ");
		}
		int end = message->GetEndColumn();
		for (int i = start; i < end; i++) {
			fprintf(stderr, "^");
		}
		fprintf(stderr, "\n");
		String::Utf8Value stack_trace(try_catch->StackTrace());
		if (stack_trace.length() > 0) {
			const char* stack_trace_string = ToCString(stack_trace);
			fprintf(stderr, "%s\n", stack_trace_string);
		}
	}

	fprintf(stderr, "--------------------------------------------------------------------------------");
}

    std::string toSTLString( const v8::TryCatch * try_catch ) {

        stringstream ss;

        //while ( try_catch ){ // disabled for v8 bleeding edge

        v8::String::Utf8Value exception(try_catch->Exception());
        Handle<v8::Message> message = try_catch->Message();

        if (message.IsEmpty()) {
            ss << *exception << endl;
        }
        else {

            v8::String::Utf8Value filename(message->GetScriptResourceName());
            if (*filename) {
                int linenum = message->GetLineNumber();
                ss << *filename << ":" << linenum << " ";
            }
            ss << *exception << endl;

            v8::String::Utf8Value sourceline(message->GetSourceLine());
            ss << *sourceline << endl;

            int start = message->GetStartColumn();
            for (int i = 0; i < start; i++)
                ss << " ";

            int end = message->GetEndColumn();
            for (int i = start; i < end; i++)
                ss << "^";

            ss << endl;
        }

        //try_catch = try_catch->next_;
        //}

        return ss.str();
    }

	int ReportError(TryCatch& try_catch){
		cs::String str;
		HandleScope handle_scope;
		v8::String::Value exception(try_catch.Exception());
		const wchar_t* exception_string = ToCString(exception);
		Handle<v8::Message> message = try_catch.Message();
		if (message.IsEmpty()) {
			str.Format(L"%s\n",exception_string);
		} else {
			cs::String buf;
			v8::String::Value filename(message->GetScriptResourceName());
			const wchar_t* filename_string = ToCString(filename);
			int linenum = message->GetLineNumber();
			buf.Format(L"file:\t%s\r\nline:\t%i\r\n%s\r\n\r\n", filename_string, linenum, exception_string);
			str += buf;
			v8::String::Value sourceline(message->GetSourceLine());
			const wchar_t* sourceline_string = ToCString(sourceline);
			buf.Format(L"%s", sourceline_string);
			int start = message->GetStartColumn();
			for (int i = 0; i < start; i++) {
				//str += L" ";
			}
			buf.Insert('^',start);
			buf.Trim();
			str += buf;
			int end = message->GetEndColumn();
			for (int i = start; i < end; i++) {
				//str += L"^";
			}
			/*str += L"\n";
			v8::String::Value stack_trace(try_catch.StackTrace());
			if (stack_trace.length() > 0) {
				const wchar_t* stack_trace_string = ToCString(stack_trace);
				buf.Format(L"%s\n", stack_trace_string);
				str += buf;
			}*/
		}
		return MessageBox(0,str,L"Error",MB_ICONERROR);
	}

// Taken from Google's Shell example.
void PrettyPrinter::prettyPrintException(v8::TryCatch *try_catch, std::string *ex_string) {
  ex_string->clear();
  HandleScope handle_scope;
  String::Utf8Value exception(try_catch->Exception());
  const char* exception_string = toCString(exception);
  Handle<Message> message = try_catch->Message();
  if (message.IsEmpty()) {
    ex_string->append(exception_string);
    ex_string->append("\n");
  } else {
    String::Utf8Value filename(message->GetScriptResourceName());
    const char* filename_string = toCString(filename);
    int linenum = message->GetLineNumber();
    ex_string->append(filename_string);
    ex_string->append(":");
    ex_string->append(intToString(linenum));
    ex_string->append(": ");
    ex_string->append(exception_string);
    ex_string->append("\n");
    String::Utf8Value sourceline(message->GetSourceLine());
    const char* sourceline_string = toCString(sourceline);
    ex_string->append(sourceline_string);
    int start = message->GetStartColumn();
    for (int i = 0; i < start; i++) {
      ex_string->append(" ");
    }
    int end = message->GetEndColumn();
    for (int i = start; i < end; i++) {
      ex_string->append("^");
    }
    ex_string->append("\n");
    String::Utf8Value stack_trace(try_catch->StackTrace());
    if (stack_trace.length() > 0) {
      const char* stack_trace_string = toCString(stack_trace);
      ex_string->append(stack_trace_string);
      ex_string->append("\n");
    }
  }
}

// Slight modification to an original function found in the V8 sample shell.cc.
void Global::reportException(TryCatch* tryCatch) {
    HandleScope handleScope(fIsolate);
    String::Utf8Value exception(tryCatch->Exception());
    const char* exceptionString = to_cstring(exception);
    Handle<Message> message = tryCatch->Message();
    if (message.IsEmpty()) {
        // V8 didn't provide any extra information about this error; just
        // print the exception.
        fprintf(stderr, "%s\n", exceptionString);
    } else {
        // Print (filename):(line number): (message).
        String::Utf8Value filename(message->GetScriptOrigin().ResourceName());
        const char* filenameString = to_cstring(filename);
        int linenum = message->GetLineNumber();
        fprintf(stderr,
                "%s:%i: %s\n", filenameString, linenum, exceptionString);
        // Print line of source code.
        String::Utf8Value sourceline(message->GetSourceLine());
        const char* sourceLineString = to_cstring(sourceline);
        fprintf(stderr, "%s\n", sourceLineString);
        // Print wavy underline.
        int start = message->GetStartColumn();
        for (int i = 0; i < start; i++) {
            fprintf(stderr, " ");
        }
        int end = message->GetEndColumn();
        for (int i = start; i < end; i++) {
            fprintf(stderr, "^");
        }
        fprintf(stderr, "\n");
        String::Utf8Value stackTrace(tryCatch->StackTrace());
        if (stackTrace.length() > 0) {
            const char* stackTraceString = to_cstring(stackTrace);
            fprintf(stderr, "%s\n", stackTraceString);
        }
    }
}

static void reportException(v8::TryCatch &try_catch, bool show_line)
{
  using namespace v8;
  
  Handle<Message> message = try_catch.Message();

  v8::String::Utf8Value error(try_catch.Exception());
  if (error.length() > 0)
  {

    std::ostringstream errorMsg;

    /*
     02:50:22.863: [CID=00000000] JS: File undefined:12
    [CID=00000000] JS: Source Line   var notheetoo = nothere.subst(0, 10);
    [CID=00000000] JS:
                              ^
    [CID=00000000] JS:
    {TypeError: Cannot call method 'subst' of undefined
        at RouteProfile.isTellMeRoutable (unknown source)
        at RouteProfile.isRoutable (unknown source)
        at handle_request (unknown source)
    }
    */

    if (show_line && !message.IsEmpty())
    {
      // Print (filename):(line number): (message).
      String::Utf8Value filename(message->GetScriptResourceName());
      const char* filename_string = toCString(filename);
      int linenum = message->GetLineNumber();
      //fprintf(stderr, "%s:%i\n", filename_string, linenum);

      errorMsg << filename_string << ":" << linenum << std::endl;
      // Print line of source code.
      String::Utf8Value sourceline(message->GetSourceLine());
      const char* sourceline_string = toCString(sourceline);

      // HACK HACK HACK
      //
      // FIXME
      //
      // Because of how CommonJS modules work, all scripts are wrapped with a
      // "function (function (exports, __filename, ...) {"
      // to provide script local variables.
      //
      // When reporting errors on the first line of a script, this wrapper
      // function is leaked to the user. This HACK is to remove it. The length
      // of the wrapper is 62. That wrapper is defined in src/node.js
      //
      // If that wrapper is ever changed, then this number also has to be
      // updated. Or - someone could clean this up so that the two peices
      // don't need to be changed.
      //
      // Even better would be to get support into V8 for wrappers that
      // shouldn't be reported to users.
      int offset = linenum == 1 ? 62 : 0;

      //fprintf(stderr, "%s\n", sourceline_string + offset);
      errorMsg << sourceline_string + offset << std::endl;
      // Print wavy underline (GetUnderline is deprecated).
      int start = message->GetStartColumn();
      for (int i = offset; i < start; i++)
      {
        errorMsg << " ";
      }
      int end = message->GetEndColumn();
      for (int i = start; i < end; i++)
      {
        errorMsg << "^";
      }
      errorMsg << std::endl;
    }

    String::Utf8Value trace(try_catch.StackTrace());

    if (trace.length() > 0)
    {
      errorMsg << *trace;
    }
    OSS_LOG_ERROR("\t[CID=00000000] JS: " << *error << std::endl << "{" << std::endl << errorMsg.str() << std::endl << "}");
  }
}