Read SWF avm1 actions without unnecessary allocations #3203
+521
−364
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Does some work on making avm1 SWF parsing non-allocating and more efficient. We now read
OpCodeinActivation::do_action, and then call the SWF parsing functions on theswf::avm1::Readerdirectly, bypassing the need for theswf::avm1::Actionenum - as discussed on Discord.This also allows us to use iterators in e.g.
OpCode::Push, which is otherwise quite difficult since the iterators have to consume bytes from the reader before parsing the next action.