本文整理汇总了C++中JSStackFrame::pc方法的典型用法代码示例。如果您正苦于以下问题：C++ JSStackFrame::pc方法的具体用法？C++ JSStackFrame::pc怎么用？C++ JSStackFrame::pc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JSStackFrame的用法示例。
在下文中一共展示了JSStackFrame::pc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: NewNativeClassInstance
static JSBool
Exception(JSContext *cx, uintN argc, Value *vp)
{
JSString *message, *filename;
JSStackFrame *fp;
/*
* ECMA ed. 3, 15.11.1 requires Error, etc., to construct even when
* called as functions, without operator new. But as we do not give
* each constructor a distinct JSClass, whose .name member is used by
* NewNativeClassInstance to find the class prototype, we must get the
* class prototype ourselves.
*/
JSObject &callee = vp[0].toObject();
Value protov;
if (!callee.getProperty(cx, ATOM_TO_JSID(cx->runtime->atomState.classPrototypeAtom), &protov))
return JS_FALSE;
if (!protov.isObject()) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_BAD_PROTOTYPE, "Error");
return JS_FALSE;
}
JSObject *errProto = &protov.toObject();
JSObject *obj = NewNativeClassInstance(cx, &js_ErrorClass, errProto, errProto->getParent());
if (!obj)
return JS_FALSE;
/*
* If it's a new object of class Exception, then null out the private
* data so that the finalizer doesn't attempt to free it.
*/
if (obj->getClass() == &js_ErrorClass)
obj->setPrivate(NULL);
/* Set the 'message' property. */
Value *argv = vp + 2;
if (argc != 0 && !argv[0].isUndefined()) {
message = js_ValueToString(cx, argv[0]);
if (!message)
return JS_FALSE;
argv[0].setString(message);
} else {
message = NULL;
}
/* Set the 'fileName' property. */
if (argc > 1) {
filename = js_ValueToString(cx, argv[1]);
if (!filename)
return JS_FALSE;
argv[1].setString(filename);
fp = NULL;
} else {
fp = js_GetScriptedCaller(cx, NULL);
if (fp) {
filename = FilenameToString(cx, fp->script()->filename);
if (!filename)
return JS_FALSE;
} else {
filename = cx->runtime->emptyString;
}
}
/* Set the 'lineNumber' property. */
uint32_t lineno;
if (argc > 2) {
if (!ValueToECMAUint32(cx, argv[2], &lineno))
return JS_FALSE;
} else {
if (!fp)
fp = js_GetScriptedCaller(cx, NULL);
lineno = (fp && fp->pc(cx)) ? js_FramePCToLineNumber(cx, fp) : 0;
}
if (obj->getClass() == &js_ErrorClass &&
!InitExnPrivate(cx, obj, message, filename, lineno, NULL)) {
return JS_FALSE;
}
vp->setObject(*obj);
return JS_TRUE;
}