Allow any mapping for locals. #3314
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vm/src/frame.rs
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| bytecode::Instruction::DeleteLocal(idx) => { | ||
| let name = &self.code.names[*idx as usize]; | ||
| match self.locals.del_item(name.clone(), vm) { | ||
| match self.locals.clone().into_object().del_item(name.clone(), vm) { |
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This is calling del_item from ItemProtocol. The ideal way to do this would be impl ItemProtocol for PyBuffer. Then self.locals.del_item will work.
Actually, most of the code from ItemProtocol for PyObjectRef looks PyMapping's.
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Oh, not that simple due to sequence protocol.
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Yeah, when #3316 lands, get/set/del item should be amended to try and and also use the sequence protocol, as CPython does.
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but I didn't use the check here to try the dict method first (which is what is going to get used most of the times), I'll add that now.
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After reviewing ItemProtocol, I now feel like it is almost useless. ItemProcotol for PyDict includes the dict-first branch. Because it is there, we cannot reuse the code here.
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