• Daniel Clifford's avatar
    Clean up common argument objects that share length property · 64e8a948
    Daniel Clifford authored
    This CL adds a bit more rigor to the handling of length properties
    in JSObject-derived classes that explicitly contain that property
    inline.
    
    This involves:
    - Introducing a new superclass of JSArgumentsObject called
      JSArgumentsObjectWithLength that is shared with other object
      instances that also have a fixed length property.
    - Adding JSArgumentsObjectWithLength to the type hierarchy in Torque,
      including adding fast-cases for leading the length property for all
      classes deriving from JSObjectWithLength.
    - Adding more rigor to Context and NativeContext handling in base.tq.
      This is useful for the map checks required to verify objects are
      argument object types derived from JSArgumentsObjectWithLength.
    
    Change-Id: I2f0a20601ffcb90b3767cbaeb766e9998d3462ec
    Reviewed-on: https://chromium-review.googlesource.com/1248661
    Commit-Queue: Daniel Clifford <danno@chromium.org>
    Reviewed-by: 's avatarToon Verwaest <verwaest@chromium.org>
    Reviewed-by: 's avatarTobias Tebbi <tebbi@chromium.org>
    Cr-Commit-Position: refs/heads/master@{#56289}
    64e8a948
arguments-inl.h 2.73 KB