Python opcode.opmap() Examples

The following are 2 code examples of opcode.opmap(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module opcode , or try the search function .
Example #1
Source File: Code.py    From guppy3 with MIT License 6 votes vote down vote up 
def co_code_findloadednames(co):
    """Find in the code of a code object, all loaded names.
    (by LOAD_NAME, LOAD_GLOBAL or LOAD_FAST) """

    import dis
    from opcode import HAVE_ARGUMENT, opmap
    hasloadname = (opmap['LOAD_NAME'],
                   opmap['LOAD_GLOBAL'], opmap['LOAD_FAST'])
    insns = dis.get_instructions(co)
    len_co_names = len(co.co_names)
    indexset = {}
    for insn in insns:
        if insn.opcode >= HAVE_ARGUMENT:
            if insn.opcode in hasloadname:
                indexset[insn.argval] = 1
                if len(indexset) >= len_co_names:
                    break
    for name in co.co_varnames:
        try:
            del indexset[name]
        except KeyError:
            pass
    return indexset
Example #2
Source File: pydevd_modify_bytecode.py    From PyDev.Debugger with Eclipse Public License 1.0 5 votes vote down vote up 
def add_jump_instruction(jump_arg, code_to_insert):
    """
    Note: although it's adding a POP_JUMP_IF_TRUE, it's actually no longer used now
    (we could only return the return and possibly the load of the 'None' before the
    return -- not done yet because it needs work to fix all related tests).
    """
    extended_arg_list = []
    if jump_arg > MAX_BYTE:
        extended_arg_list += [EXTENDED_ARG, jump_arg >> 8]
        jump_arg = jump_arg & MAX_BYTE

    # remove 'RETURN_VALUE' instruction and add 'POP_JUMP_IF_TRUE' with (if needed) 'EXTENDED_ARG'
    return list(code_to_insert.co_code[:-RETURN_VALUE_SIZE]) + extended_arg_list + [opmap['POP_JUMP_IF_TRUE'], jump_arg]