本文整理汇总了C++中JSAutoByteString::clear方法的典型用法代码示例。如果您正苦于以下问题：C++ JSAutoByteString::clear方法的具体用法？C++ JSAutoByteString::clear怎么用？C++ JSAutoByteString::clear使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类JSAutoByteString的用法示例。
在下文中一共展示了JSAutoByteString::clear方法的1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: tvr
JSBool
js_ReportUncaughtException(JSContext *cx)
{
jsval exn;
JSObject *exnObject;
jsval roots[5];
JSErrorReport *reportp, report;
JSString *str;
const char *bytes;
if (!JS_IsExceptionPending(cx))
return true;
if (!JS_GetPendingException(cx, &exn))
return false;
PodArrayZero(roots);
AutoArrayRooter tvr(cx, JS_ARRAY_LENGTH(roots), Valueify(roots));
/*
* Because js_ValueToString below could error and an exception object
* could become unrooted, we must root exnObject. Later, if exnObject is
* non-null, we need to root other intermediates, so allocate an operand
* stack segment to protect all of these values.
*/
if (JSVAL_IS_PRIMITIVE(exn)) {
exnObject = NULL;
} else {
exnObject = JSVAL_TO_OBJECT(exn);
roots[0] = exn;
}
JS_ClearPendingException(cx);
reportp = js_ErrorFromException(cx, exn);
/* XXX L10N angels cry once again (see also jsemit.c, /L10N gaffes/) */
str = js_ValueToString(cx, Valueify(exn));
JSAutoByteString bytesStorage;
if (!str) {
bytes = "unknown (can't convert to string)";
} else {
roots[1] = STRING_TO_JSVAL(str);
if (!bytesStorage.encode(cx, str))
return false;
bytes = bytesStorage.ptr();
}
JSAutoByteString filename;
if (!reportp && exnObject && exnObject->getClass() == &js_ErrorClass) {
if (!JS_GetProperty(cx, exnObject, js_message_str, &roots[2]))
return false;
if (JSVAL_IS_STRING(roots[2])) {
bytesStorage.clear();
if (!bytesStorage.encode(cx, str))
return false;
bytes = bytesStorage.ptr();
}
if (!JS_GetProperty(cx, exnObject, js_fileName_str, &roots[3]))
return false;
str = js_ValueToString(cx, Valueify(roots[3]));
if (!str || !filename.encode(cx, str))
return false;
if (!JS_GetProperty(cx, exnObject, js_lineNumber_str, &roots[4]))
return false;
uint32_t lineno;
if (!ValueToECMAUint32(cx, Valueify(roots[4]), &lineno))
return false;
reportp = &report;
PodZero(&report);
report.filename = filename.ptr();
report.lineno = (uintN) lineno;
if (JSVAL_IS_STRING(roots[2])) {
JSFixedString *fixed = JSVAL_TO_STRING(roots[2])->ensureFixed(cx);
if (!fixed)
return false;
report.ucmessage = fixed->chars();
}
}
if (!reportp) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_UNCAUGHT_EXCEPTION, bytes);
} else {
/* Flag the error as an exception. */
reportp->flags |= JSREPORT_EXCEPTION;
/* Pass the exception object. */
JS_SetPendingException(cx, exn);
js_ReportErrorAgain(cx, bytes, reportp);
JS_ClearPendingException(cx);
}
return true;
}