• Benedikt Meurer's avatar
    [typedarray] Move external/data pointer to JSTypedArray. · 4b86fea5
    Benedikt Meurer authored
    As the next step in supporting huge typed arrays in V8, this moves the
    external/data pointer from the FixedTypedArrayBase backing store to the
    JSTypedArray instance itself, and replaces the special backing stores
    with a plain ByteArray (removing all the code for the FixedTypedArrayBase
    class hierarchy). By doing so, we can drastically simplify the system
    around typed arrays.
    
    Note: Several places in the code base used to check the instance type
    of the elements backing store of a JSTypedArray instead of checking the
    elements kind on the JSTypedArray map directly. Those had to be fixed,
    since the backing store is now always a ByteArray.
    
    Drive-by-fix: Move all the typed elements access related code into the
    elements.cc file to properly encapsulate the accesses.
    
    Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow
    Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183
    Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646
    Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
    Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535
    Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
    Reviewed-by: 's avatarPeter Marshall <petermarshall@chromium.org>
    Reviewed-by: 's avatarUlan Degenbaev <ulan@chromium.org>
    Reviewed-by: 's avatarSimon Zünd <szuend@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#61855}
    4b86fea5
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