RematerializedFrame::RematerializedFrame(JSContext* cx, uint8_t* top, unsigned numActualArgs,
                                         InlineFrameIterator& iter, MaybeReadFallback& fallback)
  : prevUpToDate_(false),
    isDebuggee_(iter.script()->isDebuggee()),
    isConstructing_(iter.isConstructing()),
    hasCachedSavedFrame_(false),
    top_(top),
    pc_(iter.pc()),
    frameNo_(iter.frameNo()),
    numActualArgs_(numActualArgs),
    script_(iter.script())
{
    if (iter.isFunctionFrame())
        callee_ = iter.callee(fallback);
    else
        callee_ = nullptr;

    CopyValueToRematerializedFrame op(slots_);
    iter.readFrameArgsAndLocals(cx, op, op, &scopeChain_, &hasCallObj_, &returnValue_,
                                &argsObj_, &thisArgument_, ReadFrame_Actuals,
                                fallback);
}