本文整理汇总了C++中ObjectElements::setShouldConvertDoubleElements方法的典型用法代码示例。如果您正苦于以下问题：C++ ObjectElements::setShouldConvertDoubleElements方法的具体用法？C++ ObjectElements::setShouldConvertDoubleElements怎么用？C++ ObjectElements::setShouldConvertDoubleElements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ObjectElements的用法示例。
在下文中一共展示了ObjectElements::setShouldConvertDoubleElements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:
/* static */ bool
ObjectElements::ConvertElementsToDoubles(JSContext *cx, uintptr_t elementsPtr)
{
/*
* This function is infallible, but has a fallible interface so that it can
* be called directly from Ion code. Only arrays can have their dense
* elements converted to doubles, and arrays never have empty elements.
*/
HeapSlot *elementsHeapPtr = (HeapSlot *) elementsPtr;
JS_ASSERT(elementsHeapPtr != emptyObjectElements);
ObjectElements *header = ObjectElements::fromElements(elementsHeapPtr);
JS_ASSERT(!header->shouldConvertDoubleElements());
// Note: the elements can be mutated in place even for copy on write
// arrays. See comment on ObjectElements.
Value *vp = (Value *) elementsPtr;
for (size_t i = 0; i < header->initializedLength; i++) {
if (vp[i].isInt32())
vp[i].setDouble(vp[i].toInt32());
}
header->setShouldConvertDoubleElements();
return true;
}