1784116 - Expose JS::MallocForArrayBuffer

Status: NEW

(Core :: JavaScript Engine, enhancement, P3)

Description

[Steve Fink [:sfink] [:s:]]

It looks like the right way to allocate memory that will end up held in an ArrayBuffer is js_pod_arena_malloc<char>(js::ArrayBufferContentsArena, size), which is bleeding internal details all over. It would better to provide JS::MallocForArrayBuffer(size) or perhaps JS::MallocForArrayBuffer(cx, size) to encapsulate this, and encourage calls of JS::NewArrayBufferWithContents to allocate the memory that way.

(Even better would be to able to assert when freeing ArrayBuffer data that it is in the correct arena.)