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README.rst: note addition of pydisassemble

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Remove duplicate disassembly printing from scanners and
put common code in caller(s). Show source-code line numbers in disassembly output
and fix alignment of byte offsets.
disas.py: workaround Python 2/3 different layouts before we get to
bytecodes in a code object.
This commit is contained in:
rocky
2015-12-15 01:42:07 -05:00
parent 5e5da104c5
commit 34ecd54e2c
11 changed files with 131 additions and 98 deletions
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31
uncompyle6/disas.py
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@@ -36,7 +36,7 @@ def marshalLoad(fp):
internStrings = []
return load(fp)
def load(fp):
def load(fp, magic_int):
"""
marshal.load() written in Python. When the Python bytecode magic loaded is the
same magic for the running Python interpreter, we can simply use the
@@ -51,27 +51,34 @@ def load(fp):
if marshalType == 'c':
Code = types.CodeType
# FIXME If 'i' is deprecated, what would we use?
co_argcount = unpack('i', fp.read(4))[0]
co_nlocals = unpack('i', fp.read(4))[0]
co_stacksize = unpack('i', fp.read(4))[0]
co_flags = unpack('i', fp.read(4))[0]
co_code = load(fp)
co_consts = load(fp)
co_names = load(fp)
co_varnames = load(fp)
co_freevars = load(fp)
co_cellvars = load(fp)
co_filename = load(fp)
co_name = load(fp)
# FIXME: somewhere between Python 2.7 and python 3.2 there's
# another 4 bytes before we get to the bytecode. What's going on?
# Again, because magic ints decreased between python 2.7 and 3.0 we need
# a range here.
if 3000 < magic_int < 20121:
fp.read(4)
co_code = load(fp, magic_int)
co_consts = load(fp, magic_int)
co_names = load(fp, magic_int)
co_varnames = load(fp, magic_int)
co_freevars = load(fp, magic_int)
co_cellvars = load(fp, magic_int)
co_filename = load(fp, magic_int)
co_name = load(fp, magic_int)
co_firstlineno = unpack('i', fp.read(4))[0]
co_lnotab = load(fp)
co_lnotab = load(fp, magic_int)
# The Python3 code object is different than Python2's which
# we are reading if we get here.
# Also various parameters which were strings are now
# bytes (which is probably more logical).
if PYTHON3:
if PYTHON_MAGIC_INT > 3020:
# In later Python3 versions, there is a
# In later Python3 magic_ints, there is a
# kwonlyargcount parameter which we set to 0.
return Code(co_argcount, 0, co_nlocals, co_stacksize, co_flags,
bytes(co_code, encoding='utf-8'),
@@ -152,7 +159,7 @@ def load(fp):
tuplesize = unpack('i', fp.read(4))[0]
ret = tuple()
while tuplesize > 0:
ret += load(fp),
ret += load(fp, magic_int),
tuplesize -= 1
return ret
elif marshalType == '[':