C++ (Cpp) JSValuePtr::isUndefined示例

示例#1

文件： JSImmediate.cpp 项目： arjunroy/cinder_webkit

UString JSImmediate::toString(JSValuePtr v)
{
    ASSERT(isImmediate(v));
    if (isIntegerNumber(v))
        return UString::from(getTruncatedInt32(v));
#if USE(ALTERNATE_JSIMMEDIATE)
    if (isNumber(v)) {
        ASSERT(isDoubleNumber(v));
        double value = doubleValue(v);
        if (value == 0.0) // +0.0 or -0.0
            return "0";
        return UString::from(value);
    }
#else
        ASSERT(!isNumber(v));
#endif
    if (jsBoolean(false) == v)
        return "false";
    if (jsBoolean(true) == v)
        return "true";
    if (v.isNull())
        return "null";
    ASSERT(v.isUndefined());
    return "undefined";
}

示例#2

文件： ErrorPrototype.cpp 项目： Fale/qtmoko

JSValuePtr errorProtoFuncToString(ExecState* exec, JSObject*, JSValuePtr thisValue, const ArgList&)
{
    JSObject* thisObj = thisValue->toThisObject(exec);

    UString s = "Error";

    JSValuePtr v = thisObj->get(exec, exec->propertyNames().name);
    if (!v->isUndefined())
        s = v->toString(exec);

    v = thisObj->get(exec, exec->propertyNames().message);
    if (!v->isUndefined()) {
        // Mozilla-compatible format.
        s += ": ";
        s += v->toString(exec);
    }

    return jsNontrivialString(exec, s);
}

示例#3

文件： JSValueRef.cpp 项目： arjunroy/cinder_webkit

bool JSValueIsUndefined(JSContextRef, JSValueRef value)
{
    JSValuePtr jsValue = toJS(value);
    return jsValue.isUndefined();
}