Repository: d0c-s4vage/pfp (python)

Issue:
Enums and _pfp__parse with set_val error
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## Describe the bug

A clear and concise description of what the bug is.

## Stack Trace

Stack traces are required

```
python -m pfp -t DEX.bt ~/Downloads/classes.dex --pdb
usage: pfp [-h] -t TEMPLATE [-k] input
pfp: error: unrecognized arguments: --pdb
(venv3)  lptp [ pfp ]: python -m pfp -t DEX.bt ~/Downloads/classes.dex
Traceback (most recent call last):
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 997, in _run
    res = self._handle_node(self._ast, None, None, self._stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1149, in _handle_file_ast
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1375, in _handle_decl
    stream, metadata_processor=metadata_processor
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 196, in __init__
    metadata_processor=metadata_processor,
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 2048, in __init__
    self._pfp__parse(stream, save_offset=True)
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 2187, in _pfp__parse
    field = self.field_cls(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 147, in __init__
    self._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2344, in _handle_for
    self._handle_node(node.stmt, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2400, in _handle_do_while
    node.cond, scope, ctxt, stream
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1840, in _handle_binary_op
    res = switch[node.op](left_val, right_val)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1828, in <lambda>
    "!=": lambda x, y: x != y,
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1678, in __ne__
    cmp_self, cmp_other = self._pfp__maybe_promote(self, other)
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1533, in _pfp__maybe_promote
    res = (val1, val1._pfp__promote(val2))
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1586, in _pfp__promote
    set_val=False,
TypeError: _pfp__parse() got an unexpected keyword argument 'set_val'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/james/__ws__/dev/pfp/pfp/__main__.py", line 61, in <module>
    main(sys.argv)
  File "/home/james/__ws__/dev/pfp/pfp/__main__.py", line 55, in main
    keep_successful=args.keep,
  File "/home/james/__ws__/dev/pfp/pfp/__init__.py", line 91, in parse
    printf=printf,
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 819, in parse
    res = self._run(keep_successful)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1024, in _run
    traceback,
  File "/home/james/__ws__/dev/pfp/venv3/lib/python3.6/site-packages/six.py", line 695, in reraise
    raise value.with_traceback(tb)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 997, in _run
    res = self._handle_node(self._ast, None, None, self._stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1149, in _handle_file_ast
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1375, in _handle_decl
    stream, metadata_processor=metadata_processor
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 196, in __init__
    metadata_processor=metadata_processor,
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 2048, in __init__
    self._pfp__parse(stream, save_offset=True)
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 2187, in _pfp__parse
    field = self.field_cls(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 147, in __init__
    self._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2344, in _handle_for
    self._handle_node(node.stmt, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 57, in _pfp__init
    super(self.__class__, self)._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2318, in _handle_if
    return self._handle_node(node.iftrue, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2187, in _handle_compound
    self._handle_node(child, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1371, in _handle_decl
    field._pfp__init(stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 150, in _pfp__init
    self._pfp__interp._handle_node(decls, ctxt=self, stream=stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1668, in _handle_struct_decls
    self._handle_node(decl, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 2400, in _handle_do_while
    node.cond, scope, ctxt, stream
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1106, in _handle_node
    res = self._node_switch[node.__class__](node, scope, ctxt, stream)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1840, in _handle_binary_op
    res = switch[node.op](left_val, right_val)
  File "/home/james/__ws__/dev/pfp/pfp/interp.py", line 1828, in <lambda>
    "!=": lambda x, y: x != y,
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1678, in __ne__
    cmp_self, cmp_other = self._pfp__maybe_promote(self, other)
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1533, in _pfp__maybe_promote
    res = (val1, val1._pfp__promote(val2))
  File "/home/james/__ws__/dev/pfp/pfp/fields.py", line 1586, in _pfp__promote
    set_val=False,
pfp.errors.PfpError: TypeError: _pfp__parse() got an unexpected keyword argument 'set_val'
Exception at DEX.bt:1417
```

## To Reproduce

Use the [DEX.bt template](https://www.sweetscape.com/010editor/repository/files/DEX.v1.2.bt) on the [classes.dex](https://github.com/google/enjarify/blob/02c417d33da3c237ecf65afe84d4fb0c6f1b4286/tests/test2/classes.dex) referenced by #14

## Expected Behavior

Should be able to use the DEX.bt template with no errors

## Implementation/Fix Notes/Thoughts

I think it's something simple

Pull request description:
Fixed problem comparing enums to enums.
Fixes #113

Patch:
diff --git a/README.md b/README.md
index 8fc87f5..b5bc721 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 [![PyPI Statistics](https://img.shields.io/pypi/dm/pfp)](https://pypistats.org/packages/pfp)
 [![Latest Release](https://img.shields.io/pypi/v/pfp)](https://pypi.python.org/pypi/pfp/)
 [![Documentation Status](https://readthedocs.org/projects/pfp/badge/?version=latest)](https://pfp.readthedocs.io/en/latest/)
+[![Coverage Status](https://coveralls.io/repos/github/d0c-s4vage/pfp/badge.svg?branch=master)](https://coveralls.io/github/d0c-s4vage/pfp?branch=master)
 
 # pfp
 
diff --git a/pfp/fields.py b/pfp/fields.py
index acfa035..58810ca 100644
--- a/pfp/fields.py
+++ b/pfp/fields.py
@@ -1983,13 +1983,13 @@ class Enum(IntBase):
             bitfield_left_right=bitfield_left_right,
         )
 
-    def _pfp__parse(self, stream, save_offset=False):
+    def _pfp__parse(self, stream, save_offset=False, set_val=True):
         """Parse the IO stream for this enum
 
         :stream: An IO stream that can be read from
         :returns: The number of bytes parsed
         """
-        res = super(Enum, self)._pfp__parse(stream, save_offset)
+        res = super(Enum, self)._pfp__parse(stream, save_offset, set_val=set_val)
 
         if self._pfp__value in self.enum_vals:
             self.enum_name = self.enum_vals[self._pfp__value]


Test patch:
diff --git a/tests/test_enums.py b/tests/test_enums.py
index 4b13ba5..1ae66f5 100644
--- a/tests/test_enums.py
+++ b/tests/test_enums.py
@@ -221,6 +221,22 @@ class TestEnums(utils.PfpTestCase):
         self.assertEqual(dom.test2, 1)
         self.assertEqual(dom.test2.enum_name, "BLAH2")
 
+    def test_enum_compared_to_enum(self):
+        dom = self._test_parse_build(
+            "\x00\x00\x00\x01",
+            """
+                BigEndian();
+                enum <uchar> TEST_ENUM {
+                    BLAH1,
+                };
+
+                do {
+                    TEST_ENUM test = BLAH1;
+                } while (test == BLAH1);
+            """,
+        )
+        self.assertEqual(len(dom.test), 4)
+
 
 if __name__ == "__main__":
     unittest.main()