• littledan's avatar
    TypedArray and ArrayBuffer support for @@species · 2bd9bdbe
    littledan authored
    This patch improves ArrayBuffer and TypedArray subclassing by adding
    support for @@species and constructing outputs to certain methods
    by creating an instance of the constructor determined by the
    SpeciesConstructor algorithm, rather than fixed to a superclass or
    naively the constructor. The new behavior is enabled by the
    --harmony-species flag. Care is taken to not significantly change the
    observable behavior when the flag is off. Previously, TypedArrays
    already supported subclassing by reading the constructor of the
    receiver, but ArrayBuffers did not, and this old behavior is
    preserved and tested for, to avoid a multi-stage upgrade path and keep
    things simple for users.
    
    R=adamk
    BUG=v8:4093
    LOG=Y
    
    Review URL: https://codereview.chromium.org/1574903004
    
    Cr-Commit-Position: refs/heads/master@{#33223}
    2bd9bdbe
runtime-typedarray.cc 24 KB