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C++ JSValueToNumber函数代码示例

本文整理汇总了C++中JSValueToNumber函数的典型用法代码示例。如果您正苦于以下问题：C++ JSValueToNumber函数的具体用法？C++ JSValueToNumber怎么用？C++ JSValueToNumber使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了JSValueToNumber函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: JSStringCreateWithUTF8CString

bool JS4D::DateObjectToVTime( ContextRef inContext, ObjectRef inObject, VTime& outTime, ExceptionRef *outException)
{
	// it's caller responsibility to check inObject is really a Date using ValueIsInstanceOf
	
	// call getTime()
	bool ok = false;
    JSStringRef jsString = JSStringCreateWithUTF8CString( "getTime");
	JSValueRef getTime = JSObjectGetProperty( inContext, inObject, jsString, outException);
	JSObjectRef getTimeFunction = JSValueToObject( inContext, getTime, outException);
    JSStringRelease( jsString);
	JSValueRef result = (getTime != NULL) ? JSObjectCallAsFunction( inContext, getTimeFunction, inObject, 0, NULL, outException) : NULL;
	if (result != NULL)
	{
		// The getTime() method returns the number of milliseconds since midnight of January 1, 1970.
		double r = JSValueToNumber( inContext, result, outException);
		sLONG8 n = (sLONG8) r;
		if (n == r)
		{
			outTime.FromUTCTime( 1970, 1, 1, 0, 0, 0, 0);
			outTime.AddMilliseconds( n);
			ok = true;
		}
		else
		{
			outTime.SetNull( true);
		}
	}
	else
	{
		outTime.SetNull( true);
	}
	return ok;
}
开发者ID:sanyaade-webdev，项目名称:core-XToolbox，代码行数:33，代码来源:JS4D.cpp

示例2: main

int main (int argc, char **argv) {

    JSGlobalContextRef ctx;
    JSStringRef script;
    bool isOk;
    JSValueRef result;
    char *js;

    if (argc <= 1) {
        printf("Usage: JavaScript\n");
        return 0;
    }
    js = argv[1];

    ctx = JSGlobalContextCreate(NULL);

    printf("Checking: %s\n", js);
    script = JSStringCreateWithUTF8CString(js);
    isOk = JSCheckScriptSyntax(ctx, script, NULL, 1, NULL);
    printf("is ok? %s\n", isOk ? "TRUE" : "FALSE");

    result = JSEvaluateScript(ctx, script, NULL, NULL, 1, NULL);
    JSStringRelease(script);

    printf("Value %.2f\n", JSValueToNumber(ctx, result, NULL));

    JSGarbageCollect(ctx);
    JSGlobalContextRelease(ctx);

    printf("Ok\n");
    return 0;
}
开发者ID:potyl，项目名称:perl-JavaScriptCore，代码行数:32，代码来源:jsc.c

示例3: getResourceDocumentNode

static JSValueRef getResourceDocumentNode(JSContextRef ctx, JSObjectRef /*function*/, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* /*exception*/)
{
    JSValueRef undefined = JSValueMakeUndefined(ctx);

    InspectorController* controller = reinterpret_cast<InspectorController*>(JSObjectGetPrivate(thisObject));
    if (!argumentCount || argumentCount > 1 || !controller)
        return undefined;

    JSValueRef identifierValue = arguments[0];
    if (!JSValueIsNumber(ctx, identifierValue))
        return undefined;

    unsigned long identifier = static_cast<unsigned long>(JSValueToNumber(ctx, identifierValue, 0));
    RefPtr<InspectorResource> resource = controller->resources().get(identifier);
    ASSERT(resource);
    if (!resource)
        return undefined;

    FrameLoader* frameLoader = resource->loader->frameLoader();
    if (!frameLoader)
        return undefined;

    Document* document = frameLoader->frame()->document();
    if (!document)
        return undefined;

    if (document->isPluginDocument() || document->isImageDocument())
        return undefined;

    KJS::JSLock lock;
    JSValueRef documentValue = toRef(toJS(toJS(controller->scriptContext()), document));
    return documentValue;
}
开发者ID:FilipBE，项目名称:qtextended，代码行数:33，代码来源:InspectorController.cpp

示例4: JSValueMakeUndefined

JSValueRef JSCExecutor::nativeRequire(
  JSContextRef ctx,
  JSObjectRef function,
  JSObjectRef thisObject,
  size_t argumentCount,
  const JSValueRef arguments[],
  JSValueRef *exception) {

  if (argumentCount != 1) {
    *exception = makeJSCException(ctx, "Got wrong number of args");
    return JSValueMakeUndefined(ctx);
  }

  JSCExecutor *executor;
  try {
    executor = s_globalContextRefToJSCExecutor.at(JSContextGetGlobalContext(ctx));
  } catch (std::out_of_range& e) {
    *exception = makeJSCException(ctx, "Global JS context didn't map to a valid executor");
    return JSValueMakeUndefined(ctx);
  }

  double moduleId = JSValueToNumber(ctx, arguments[0], exception);
  if (moduleId <= (double) std::numeric_limits<uint32_t>::max() && moduleId >= 0.0) {
    try {
      executor->loadModule(moduleId);
    } catch (JSModulesUnbundle::ModuleNotFound&) {
      *exception = makeInvalidModuleIdJSCException(ctx, arguments[0], exception);
    }
  } else {
    *exception = makeInvalidModuleIdJSCException(ctx, arguments[0], exception);
  }
  return JSValueMakeUndefined(ctx);
}
开发者ID:DYS1230，项目名称:react-native，代码行数:33，代码来源:JSCExecutor.cpp

示例5: JSValueToStringCopy

bool S_CCLabelTTF::initWithContext(JSContextRef ctx, JSObjectRef obj, size_t argumentCount, const JSValueRef arguments[])
{
	bool result = true;
	if (argumentCount == 3) {
		char *buffText = (char *)malloc(128);
		char *buffFont = (char *)malloc(128);
		
		JSStringRef jsLabelText = JSValueToStringCopy(ctx, arguments[0], NULL);
		JSStringRef jsFontName  = JSValueToStringCopy(ctx, arguments[1], NULL);
		float fontSize = JSValueToNumber(ctx, arguments[2], NULL);
		
		JSStringGetUTF8CString(jsLabelText, buffText, 128);
		JSStringGetUTF8CString(jsFontName, buffFont, 128);
		
		if (!CCLabelTTF::initWithString(buffText, buffFont, fontSize)) {
			return false;
		}
		free(buffText);
		free(buffFont);
	} else {
		if (!CCLabelTTF::init()) {
			result = false;
		}
	}
	if (result) {
		setUserData(obj);
	}
	return result;
}
开发者ID:0x4d52，项目名称:JavaScriptCore-X，代码行数:29，代码来源:S_CCLabel.cpp

示例6: if

JSValueRef JSCCharacterData::insertDataCallback(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObj, size_t argumentCount, const JSValueRef* arguments, JSValueRef* exception) {

	struct JSCCharacterDataPrivate* privData = (struct JSCCharacterDataPrivate*)JSObjectGetPrivate(thisObj);

	if (false) {
	} else if (argumentCount == 2 &&
	           JSValueIsNumber(ctx, arguments[0]) &&
	           JSValueIsString(ctx, arguments[1])) {
		unsigned long localOffset = (unsigned long)JSValueToNumber(ctx, arguments[0], exception);
		JSStringRef stringReflocalArg = JSValueToStringCopy(ctx, arguments[1], exception);
		size_t localArgMaxSize = JSStringGetMaximumUTF8CStringSize(stringReflocalArg);
		char* localArgBuffer = new char[localArgMaxSize];
		JSStringGetUTF8CString(stringReflocalArg, localArgBuffer, localArgMaxSize);
		std::string localArg(localArgBuffer);
		JSStringRelease(stringReflocalArg);
		free(localArgBuffer);


		privData->nativeObj->insertData(localOffset, localArg);

		JSValueRef jscRetVal = JSValueMakeUndefined(ctx);
		return jscRetVal;
	}

	JSStringRef exceptionString = JSStringCreateWithUTF8CString("Parameter mismatch while calling insertData");
	*exception = JSValueMakeString(ctx, exceptionString);
	JSStringRelease(exceptionString);
	return JSValueMakeUndefined(ctx);
}
开发者ID:bjqiwei，项目名称:uscxml，代码行数:29，代码来源:JSCCharacterData.cpp

示例7: MakeInstance

JSObjectRef MakeInstance (JSContextRef ctx, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    size_t length = 1;
    if (argumentCount > 0)
    {
        *exception = nullptr;
        if (!JSValueIsNumber(ctx,arguments[0]))
        {
            JSStringRef string = JSStringCreateWithUTF8CString("required first argument to be a number which is the size of the buffer requested");
            JSValueRef message = JSValueMakeString(ctx, string);
            JSStringRelease(string);
            *exception = JSObjectMakeError(ctx, 1, &message, 0);
            return nullptr;
        }
        length = JSValueToNumber(ctx, arguments[0], exception);
        CHECK_BUF_EXCEPTION(nullptr);
    }
    JSBuffer *buffer = (JSBuffer *)malloc(sizeof(JSBuffer));
    buffer->buffer = malloc(length);
    buffer->length = length;
    buffer->type = JSBufferTypePointer;
    memset(buffer->buffer, 0, length);
    // by default, let's set the value to NAN
    float *p = (float*)buffer->buffer;
    p[0] = NAN;
    JSObjectRef object = MakeObjectForJSBuffer(ctx,buffer);
    return object;
}
开发者ID:pec1985，项目名称:hyperloop，代码行数:28，代码来源:JSBuffer.cpp

示例8: continuousMouseScrollBy

static JSValueRef continuousMouseScrollBy(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    if (argumentCount < 1)
        return JSValueMakeUndefined(context);

    double deltaX = JSValueToNumber(context, arguments[0], exception);

    double deltaY = 0;

    if (argumentCount >= 2)
        deltaY = JSValueToNumber(context, arguments[1], exception);

    mouseScrollBy(deltaX, deltaY, true);

    return JSValueMakeUndefined(context);
}
开发者ID:Comcast，项目名称:WebKitForWayland，代码行数:16，代码来源:EventSender.cpp

示例9: lengthPropertyName

bool TestRunner::findString(JSContextRef context, JSStringRef string, JSObjectRef optionsArray)
{
    JSRetainPtr<JSStringRef> lengthPropertyName(Adopt, JSStringCreateWithUTF8CString("length"));
    JSValueRef lengthValue = JSObjectGetProperty(context, optionsArray, lengthPropertyName.get(), 0);
    if (!JSValueIsNumber(context, lengthValue))
        return false;

    QWebPage::FindFlags findFlags = QWebPage::FindCaseSensitively;

    int length = static_cast<int>(JSValueToNumber(context, lengthValue, 0));
    for (int i = 0; i < length; ++i) {
        JSValueRef value = JSObjectGetPropertyAtIndex(context, optionsArray, i, 0);
        if (!JSValueIsString(context, value))
            continue;

        JSRetainPtr<JSStringRef> optionName(Adopt, JSValueToStringCopy(context, value, 0));
        if (JSStringIsEqualToUTF8CString(optionName.get(), "CaseInsensitive"))
            findFlags &= ~QWebPage::FindCaseSensitively;
        else if (JSStringIsEqualToUTF8CString(optionName.get(), "AtWordStarts"))
            findFlags |= QWebPage::FindAtWordBeginningsOnly;
        else if (JSStringIsEqualToUTF8CString(optionName.get(), "TreatMedialCapitalAsWordStart"))
            findFlags |=  QWebPage::TreatMedialCapitalAsWordBeginning;
        else if (JSStringIsEqualToUTF8CString(optionName.get(), "Backwards"))
            findFlags |=  QWebPage::FindBackward;
        else if (JSStringIsEqualToUTF8CString(optionName.get(), "WrapAround"))
            findFlags |=  QWebPage::FindWrapsAroundDocument;
        else if (JSStringIsEqualToUTF8CString(optionName.get(), "StartInSelection"))
            findFlags |=  QWebPage::FindBeginsInSelection;
    }

    DumpRenderTree* drt = DumpRenderTree::instance();
    return drt->webPage()->findText(JSStringCopyQString(string), findFlags);
}
开发者ID:3163504123，项目名称:phantomjs，代码行数:33，代码来源:TestRunnerQt.cpp

示例10: JSObjectGetProperty

unsigned JSArray::length() {
  JSValueRef val = JSObjectGetProperty(ctx_, instance_, JSString("length"), nullptr);
  if (JSValueIsNumber(ctx_, val))
    return static_cast<unsigned>(JSValueToNumber(ctx_, val, nullptr));

  return 0;
}
开发者ID:FinnProjects，项目名称:ultralight，代码行数:7，代码来源:JSHelpers.cpp

示例11: function_set_exit_value

JSValueRef function_set_exit_value(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject,
		size_t argc, const JSValueRef args[], JSValueRef* exception) {
	if (argc == 1 && JSValueGetType (ctx, args[0]) == kJSTypeNumber) {
		exit_value = JSValueToNumber(ctx, args[0], NULL);
	}
	return JSValueMakeNull(ctx);
}
开发者ID:gsnewmark，项目名称:planck，代码行数:7，代码来源:main.c

示例12: function_file_output_stream_write

JSValueRef function_file_output_stream_write(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject,
                                             size_t argc, const JSValueRef args[], JSValueRef *exception) {
    if (argc == 2
        && JSValueGetType(ctx, args[0]) == kJSTypeString
        && JSValueGetType(ctx, args[1]) == kJSTypeObject) {

        char *descriptor = value_to_c_string(ctx, args[0]);

        unsigned int count = (unsigned int) array_get_count(ctx, (JSObjectRef) args[1]);
        uint8_t buf[count];
        for (unsigned int i = 0; i < count; i++) {
            JSValueRef v = array_get_value_at_index(ctx, (JSObjectRef) args[1], i);
            if (JSValueIsNumber(ctx, v)) {
                double n = JSValueToNumber(ctx, v, NULL);
                if (0 <= n && n <= 255) {
                    buf[i] = (uint8_t) n;
                } else {
                    fprintf(stderr, "Output stream value out of range %f", n);
                }
            } else {
                fprintf(stderr, "Output stream value not a number");
            }
        }

        file_write(descriptor_str_to_int(descriptor), count, buf);

        free(descriptor);
    }

    return JSValueMakeNull(ctx);
}
开发者ID:mfikes，项目名称:planck，代码行数:31，代码来源:functions.c

示例13: mouseMoveToCallback

static JSValueRef mouseMoveToCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    WebKitWebView* view = webkit_web_frame_get_web_view(mainFrame);
    if (!view)
        return JSValueMakeUndefined(context);

    if (argumentCount < 2)
        return JSValueMakeUndefined(context);

    lastMousePositionX = (int)JSValueToNumber(context, arguments[0], exception);
    g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));
    lastMousePositionY = (int)JSValueToNumber(context, arguments[1], exception);
    g_return_val_if_fail((!exception || !*exception), JSValueMakeUndefined(context));

    GdkEvent event;
    memset(&event, 0, sizeof(event));
    event.type = GDK_MOTION_NOTIFY;
    event.motion.x = lastMousePositionX;
    event.motion.y = lastMousePositionY;
    event.motion.time = GDK_CURRENT_TIME;
    event.motion.window = GTK_WIDGET(view)->window;
    event.motion.device = gdk_device_get_core_pointer();

    int x_root, y_root;
#if GTK_CHECK_VERSION(2,17,3)
    gdk_window_get_root_coords(GTK_WIDGET(view)->window, lastMousePositionX, lastMousePositionY, &x_root, &y_root);
#else
    getRootCoords(GTK_WIDGET(view), &x_root, &y_root);
#endif

    event.motion.x_root = x_root;
    event.motion.y_root = y_root;
    
    event.motion.state = getStateFlags();

    if (dragMode && down && !replayingSavedEvents) {
        msgQueue[endOfQueue].event = event;
        msgQueue[endOfQueue++].isDragEvent = true;
    } else {
        webkit_web_frame_layout(mainFrame);

        gboolean return_val;
        g_signal_emit_by_name(view, "motion_notify_event", &event, &return_val);
    }

    return JSValueMakeUndefined(context);
}
开发者ID:flwh，项目名称:Alcatel_OT_985_kernel，代码行数:47，代码来源:EventSender.cpp

示例14: childAtIndexCallback

static JSValueRef childAtIndexCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    int indexNumber = -1;
    if (argumentCount == 1)
        indexNumber = JSValueToNumber(context, arguments[0], exception);
    
    return AccessibilityUIElement::makeJSAccessibilityUIElement(context, toAXElement(thisObject)->getChildAtIndex(indexNumber));
}
开发者ID:acss，项目名称:owb-mirror，代码行数:8，代码来源:AccessibilityUIElement.cpp

示例15: arrayLength

static unsigned arrayLength(JSContextRef context, JSObjectRef array)
{
    JSRetainPtr<JSStringRef> lengthString(Adopt, JSStringCreateWithUTF8CString("length"));
    JSValueRef lengthValue = JSObjectGetProperty(context, array, lengthString.get(), 0);
    if (!lengthValue)
        return 0;
    return static_cast<unsigned>(JSValueToNumber(context, lengthValue, 0));
}
开发者ID:sanyaade-webdev，项目名称:webkit，代码行数:8，代码来源:EventSendingController.cpp


注：本文中的JSValueToNumber函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。