New submission from Serhiy Storchaka <storchaka+cpyt...@gmail.com>: Currently dis.stack_effect() doesn't support opcodes NOP and EXTENDED_ARG. NOP is never emitted by the standard compiler (it is temporary added in the peephole optimizer, but later it is removed). EXTENDED_ARG is a special case, it is considered as a part of long instructions.
dis.stack_effect() itself is not used in the dis module. It can be used in the third-party code, and the third-party code can produce bytecode with non-standard use of NOP and EXTENDED_ARG. Supporting them in dis.stack_effect() can avoid the need of special casing them in the third-party code. I don't know whether this is a bug fix or a new feature. ---------- components: Library (Lib) messages: 315622 nosy: larry, serhiy.storchaka priority: normal severity: normal status: open title: Add support of NOP and EXTENDED_ARG in stack_effect() versions: Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33334> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
