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JS::AutoVectorRooter 编辑

This article covers features introduced in SpiderMonkey 17

Base class that roots an internal variable-size array of type T.

Syntax

JS::AutoVectorRooter(JSContext* cx);

Methods

Method	Description
`size_t length() const`	Returns the length of the array.
`bool empty() const`	Determines if the array is empty (length is zero).
`bool append(const T &v)`	Appends an element `v` to the array.
`bool append(const T *ptr, size_t len)`	Appends a sequence of `T` specified with a pointer `ptr` and length `len` to the array.
`bool appendAll(const AutoVectorRooter<T> &other)`	Appends all elements of `other` to the array.
`bool insert(T *p, const T &val)`	Inserts an element `val` at the position specified by `p`.
`void infallibleAppend(const T &v)`	Appends an element `v` to the array. For use when space has already been reserved.
`void popBack()`	Pops an element from the array.
`T popCopy()`	Pops an element from the array and returns it.
`bool growBy(size_t inc)`	Grows the array by `inc`.
`bool resize(size_t newLength)`	Resizes the array to `newLength.`
`void clear()`	Clears all elements.
`bool reserve(size_t newLength)`	Reserves the array with `newLength`.
`JS::MutableHandle<T> operator[](size_t i)`	Returns to the `i`-th element as `JS::MutableHandle<T>`.
`JS::Handle<T> operator[](size_t i) const`	Returns to the `i`-th element as `JS::Handle<T>`.
`const T *begin() const`	Returns a pointer to the first element.
`T *begin()`	Returns a pointer to the first element.
`const T *end() const`	Returns a pointer to the element next to the last element.
`T *end()`	Returns a pointer to the element next to the last element.
`Range all()`	Returns the `Range` of the array.
`const T &back() const`	Returns the last element.

Description

JS::AutoVectorRooter<T> holds a variable-size rooted array of type T.

There are derived classes for the main types:

Class	Parent class
`JS::AutoValueVector`	`AutoVectorRooter<Value>`
`JS::AutoIdVector`	`AutoVectorRooter<jsid>`
`JS::AutoObjectVector` Added in SpiderMonkey 24	`AutoVectorRooter<JSObject *>`
`JS::AutoFunctionVector` Added in SpiderMonkey 31	`AutoVectorRooter<JSFunction *>`
`JS::AutoScriptVector`	`AutoVectorRooter<JSScript *>`

JS::AutoVectorRooter 编辑

Syntax

Methods

Description

See Also

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友情链接

JS::AutoVectorRooter 编辑

Syntax

Methods

Description

See Also

如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

词条统计

友情链接

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。