3 ^H@sLdZddlmZmZddlmZddlmZddZddZdd ZeZ d S) zCPython disassembly functions specific to wordcode from Python 3.6+ )PYTHON3PYTHON_VERSION)op_has_argumentc csd}y t|}Wn"tk r2|j}t|}YnXt|dtrxtd|dD]V}t||}t||rt||d|B}||jkr|d>nd}nd}|||fVqPWn`x^td|dD]N}||}t||r||d|B}||jkr|d>nd}nd}|||fVqWdS)Nr) len TypeErrorco_code isinstancestrrangeordr EXTENDED_ARG)codeopc extended_argniopargrJ/home/psgendb/BIRCHDEV/python/lib/python3.6/site-packages/xdis/wordcode.pyunpack_opargs_wordcodes*    rcCsfg}x\t||D]N\}}}|dk r||jkr:|d|}n||jkr|}nq||kr|j|qW|S)zReturns a list of instruction offsets in the supplied bytecode which are the targets of some sort of jump instruction. Nr)rJREL_OPSJABS_OPSappend)rrZoffsetsoffsetrr jump_offsetrrrget_jump_targets5s  rc Csi}d}xt||D]\}}}|dkrD|j|g}|j||||<|}||jkrVd}|dk rd}||jkrz|d|}n||jkr|}|dkr|j|g}|j||||<qW|S)amReturns a dictionary where the key is an offset and the values are a list of instruction offsets which can get run before that instruction. This includes jump instructions as well as non-jump instructions. Therefore, the keys of the dictionary are reachible instructions. The values of the dictionary may be useful in control-flow analysis. rrNrr r )rgetrZNOFOLLOWrr) rrZ offset2prevZ prev_offsetrrrZ prev_listrrrrget_jump_target_mapsGs*        r"N) __doc__xdisrrZ xdis.bytecoderrrr" findlabelsrrrrs