mirror of
https://github.com/python/cpython
synced 2024-09-05 00:05:39 +00:00
gh-112137: change dis output to display labels instead of offsets (#112138)
This commit is contained in:
parent
790db85c77
commit
10e1a0c916
|
@ -51,6 +51,11 @@ interpreter.
|
|||
transparent for forward jumps but needs to be taken into account when
|
||||
reasoning about backward jumps.
|
||||
|
||||
.. versionchanged:: 3.13
|
||||
The output shows logical labels rather than instruction offsets
|
||||
for jump targets and exception handlers. The ``-O`` command line
|
||||
option and the ``show_offsets`` argument were added.
|
||||
|
||||
Example: Given the function :func:`!myfunc`::
|
||||
|
||||
def myfunc(alist):
|
||||
|
@ -62,12 +67,12 @@ the following command can be used to display the disassembly of
|
|||
.. doctest::
|
||||
|
||||
>>> dis.dis(myfunc)
|
||||
2 0 RESUME 0
|
||||
2 RESUME 0
|
||||
<BLANKLINE>
|
||||
3 2 LOAD_GLOBAL 1 (len + NULL)
|
||||
12 LOAD_FAST 0 (alist)
|
||||
14 CALL 1
|
||||
22 RETURN_VALUE
|
||||
3 LOAD_GLOBAL 1 (len + NULL)
|
||||
LOAD_FAST 0 (alist)
|
||||
CALL 1
|
||||
RETURN_VALUE
|
||||
|
||||
(The "2" is a line number).
|
||||
|
||||
|
@ -80,7 +85,7 @@ The :mod:`dis` module can be invoked as a script from the command line:
|
|||
|
||||
.. code-block:: sh
|
||||
|
||||
python -m dis [-h] [-C] [infile]
|
||||
python -m dis [-h] [-C] [-O] [infile]
|
||||
|
||||
The following options are accepted:
|
||||
|
||||
|
@ -94,6 +99,10 @@ The following options are accepted:
|
|||
|
||||
Show inline caches.
|
||||
|
||||
.. cmdoption:: -O, --show-offsets
|
||||
|
||||
Show offsets of instructions.
|
||||
|
||||
If :file:`infile` is specified, its disassembled code will be written to stdout.
|
||||
Otherwise, disassembly is performed on compiled source code recieved from stdin.
|
||||
|
||||
|
@ -107,7 +116,7 @@ The bytecode analysis API allows pieces of Python code to be wrapped in a
|
|||
code.
|
||||
|
||||
.. class:: Bytecode(x, *, first_line=None, current_offset=None,\
|
||||
show_caches=False, adaptive=False)
|
||||
show_caches=False, adaptive=False, show_offsets=False)
|
||||
|
||||
Analyse the bytecode corresponding to a function, generator, asynchronous
|
||||
generator, coroutine, method, string of source code, or a code object (as
|
||||
|
@ -132,6 +141,9 @@ code.
|
|||
If *adaptive* is ``True``, :meth:`.dis` will display specialized bytecode
|
||||
that may be different from the original bytecode.
|
||||
|
||||
If *show_offsets* is ``True``, :meth:`.dis` will include instruction
|
||||
offsets in the output.
|
||||
|
||||
.. classmethod:: from_traceback(tb, *, show_caches=False)
|
||||
|
||||
Construct a :class:`Bytecode` instance from the given traceback, setting
|
||||
|
@ -254,7 +266,8 @@ operation is being performed, so the intermediate analysis object isn't useful:
|
|||
Added the *show_caches* and *adaptive* parameters.
|
||||
|
||||
|
||||
.. function:: distb(tb=None, *, file=None, show_caches=False, adaptive=False)
|
||||
.. function:: distb(tb=None, *, file=None, show_caches=False, adaptive=False,
|
||||
show_offset=False)
|
||||
|
||||
Disassemble the top-of-stack function of a traceback, using the last
|
||||
traceback if none was passed. The instruction causing the exception is
|
||||
|
@ -269,9 +282,12 @@ operation is being performed, so the intermediate analysis object isn't useful:
|
|||
.. versionchanged:: 3.11
|
||||
Added the *show_caches* and *adaptive* parameters.
|
||||
|
||||
.. versionchanged:: 3.13
|
||||
Added the *show_offsets* parameter.
|
||||
|
||||
.. function:: disassemble(code, lasti=-1, *, file=None, show_caches=False, adaptive=False)
|
||||
disco(code, lasti=-1, *, file=None, show_caches=False, adaptive=False)
|
||||
disco(code, lasti=-1, *, file=None, show_caches=False, adaptive=False,
|
||||
show_offsets=False)
|
||||
|
||||
Disassemble a code object, indicating the last instruction if *lasti* was
|
||||
provided. The output is divided in the following columns:
|
||||
|
@ -296,6 +312,8 @@ operation is being performed, so the intermediate analysis object isn't useful:
|
|||
.. versionchanged:: 3.11
|
||||
Added the *show_caches* and *adaptive* parameters.
|
||||
|
||||
.. versionchanged:: 3.13
|
||||
Added the *show_offsets* parameter.
|
||||
|
||||
.. function:: get_instructions(x, *, first_line=None, show_caches=False, adaptive=False)
|
||||
|
||||
|
|
|
@ -168,6 +168,15 @@ copy
|
|||
any user classes which define the :meth:`!__replace__` method.
|
||||
(Contributed by Serhiy Storchaka in :gh:`108751`.)
|
||||
|
||||
dis
|
||||
---
|
||||
|
||||
* Change the output of :mod:`dis` module functions to show logical
|
||||
labels for jump targets and exception handlers, rather than offsets.
|
||||
The offsets can be added with the new ``-O`` command line option or
|
||||
the ``show_offsets`` parameter.
|
||||
(Contributed by Irit Katriel in :gh:`112137`.)
|
||||
|
||||
dbm
|
||||
---
|
||||
|
||||
|
|
156
Lib/dis.py
156
Lib/dis.py
|
@ -72,7 +72,8 @@ def _try_compile(source, name):
|
|||
pass
|
||||
return compile(source, name, 'exec')
|
||||
|
||||
def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False):
|
||||
def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False,
|
||||
show_offsets=False):
|
||||
"""Disassemble classes, methods, functions, and other compiled objects.
|
||||
|
||||
With no argument, disassemble the last traceback.
|
||||
|
@ -82,7 +83,8 @@ def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False):
|
|||
in a special attribute.
|
||||
"""
|
||||
if x is None:
|
||||
distb(file=file, show_caches=show_caches, adaptive=adaptive)
|
||||
distb(file=file, show_caches=show_caches, adaptive=adaptive,
|
||||
show_offsets=show_offsets)
|
||||
return
|
||||
# Extract functions from methods.
|
||||
if hasattr(x, '__func__'):
|
||||
|
@ -103,21 +105,21 @@ def dis(x=None, *, file=None, depth=None, show_caches=False, adaptive=False):
|
|||
if isinstance(x1, _have_code):
|
||||
print("Disassembly of %s:" % name, file=file)
|
||||
try:
|
||||
dis(x1, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
|
||||
dis(x1, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive, show_offsets=show_offsets)
|
||||
except TypeError as msg:
|
||||
print("Sorry:", msg, file=file)
|
||||
print(file=file)
|
||||
elif hasattr(x, 'co_code'): # Code object
|
||||
_disassemble_recursive(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
|
||||
_disassemble_recursive(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive, show_offsets=show_offsets)
|
||||
elif isinstance(x, (bytes, bytearray)): # Raw bytecode
|
||||
_disassemble_bytes(x, file=file, show_caches=show_caches)
|
||||
_disassemble_bytes(x, file=file, show_caches=show_caches, show_offsets=show_offsets)
|
||||
elif isinstance(x, str): # Source code
|
||||
_disassemble_str(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive)
|
||||
_disassemble_str(x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive, show_offsets=show_offsets)
|
||||
else:
|
||||
raise TypeError("don't know how to disassemble %s objects" %
|
||||
type(x).__name__)
|
||||
|
||||
def distb(tb=None, *, file=None, show_caches=False, adaptive=False):
|
||||
def distb(tb=None, *, file=None, show_caches=False, adaptive=False, show_offsets=False):
|
||||
"""Disassemble a traceback (default: last traceback)."""
|
||||
if tb is None:
|
||||
try:
|
||||
|
@ -128,7 +130,7 @@ def distb(tb=None, *, file=None, show_caches=False, adaptive=False):
|
|||
except AttributeError:
|
||||
raise RuntimeError("no last traceback to disassemble") from None
|
||||
while tb.tb_next: tb = tb.tb_next
|
||||
disassemble(tb.tb_frame.f_code, tb.tb_lasti, file=file, show_caches=show_caches, adaptive=adaptive)
|
||||
disassemble(tb.tb_frame.f_code, tb.tb_lasti, file=file, show_caches=show_caches, adaptive=adaptive, show_offsets=show_offsets)
|
||||
|
||||
# The inspect module interrogates this dictionary to build its
|
||||
# list of CO_* constants. It is also used by pretty_flags to
|
||||
|
@ -263,10 +265,10 @@ def show_code(co, *, file=None):
|
|||
'start_offset',
|
||||
'starts_line',
|
||||
'line_number',
|
||||
'is_jump_target',
|
||||
'label',
|
||||
'positions'
|
||||
],
|
||||
defaults=[None]
|
||||
defaults=[None, None]
|
||||
)
|
||||
|
||||
_Instruction.opname.__doc__ = "Human readable name for operation"
|
||||
|
@ -281,12 +283,15 @@ def show_code(co, *, file=None):
|
|||
)
|
||||
_Instruction.starts_line.__doc__ = "True if this opcode starts a source line, otherwise False"
|
||||
_Instruction.line_number.__doc__ = "source line number associated with this opcode (if any), otherwise None"
|
||||
_Instruction.is_jump_target.__doc__ = "True if other code jumps to here, otherwise False"
|
||||
_Instruction.label.__doc__ = "A label (int > 0) if this instruction is a jump target, otherwise None"
|
||||
_Instruction.positions.__doc__ = "dis.Positions object holding the span of source code covered by this instruction"
|
||||
|
||||
_ExceptionTableEntry = collections.namedtuple("_ExceptionTableEntry",
|
||||
_ExceptionTableEntryBase = collections.namedtuple("_ExceptionTableEntryBase",
|
||||
"start end target depth lasti")
|
||||
|
||||
class _ExceptionTableEntry(_ExceptionTableEntryBase):
|
||||
pass
|
||||
|
||||
_OPNAME_WIDTH = 20
|
||||
_OPARG_WIDTH = 5
|
||||
|
||||
|
@ -325,13 +330,14 @@ class Instruction(_Instruction):
|
|||
otherwise equal to Instruction.offset
|
||||
starts_line - True if this opcode starts a source line, otherwise False
|
||||
line_number - source line number associated with this opcode (if any), otherwise None
|
||||
is_jump_target - True if other code jumps to here, otherwise False
|
||||
label - A label if this instruction is a jump target, otherwise None
|
||||
positions - Optional dis.Positions object holding the span of source code
|
||||
covered by this instruction
|
||||
"""
|
||||
|
||||
@staticmethod
|
||||
def _get_argval_argrepr(op, arg, offset, co_consts, names, varname_from_oparg):
|
||||
def _get_argval_argrepr(op, arg, offset, co_consts, names, varname_from_oparg,
|
||||
labels_map):
|
||||
get_name = None if names is None else names.__getitem__
|
||||
argval = None
|
||||
argrepr = ''
|
||||
|
@ -361,13 +367,13 @@ def _get_argval_argrepr(op, arg, offset, co_consts, names, varname_from_oparg):
|
|||
argval, argrepr = _get_name_info(arg, get_name)
|
||||
elif deop in hasjabs:
|
||||
argval = arg*2
|
||||
argrepr = "to " + repr(argval)
|
||||
argrepr = f"to L{labels_map[argval]}"
|
||||
elif deop in hasjrel:
|
||||
signed_arg = -arg if _is_backward_jump(deop) else arg
|
||||
argval = offset + 2 + signed_arg*2
|
||||
caches = _get_cache_size(_all_opname[deop])
|
||||
argval += 2 * caches
|
||||
argrepr = "to " + repr(argval)
|
||||
argrepr = f"to L{labels_map[argval]}"
|
||||
elif deop in (LOAD_FAST_LOAD_FAST, STORE_FAST_LOAD_FAST, STORE_FAST_STORE_FAST):
|
||||
arg1 = arg >> 4
|
||||
arg2 = arg & 15
|
||||
|
@ -399,14 +405,21 @@ def _get_argval_argrepr(op, arg, offset, co_consts, names, varname_from_oparg):
|
|||
|
||||
@classmethod
|
||||
def _create(cls, op, arg, offset, start_offset, starts_line, line_number,
|
||||
is_jump_target, positions,
|
||||
co_consts=None, varname_from_oparg=None, names=None):
|
||||
positions,
|
||||
co_consts=None, varname_from_oparg=None, names=None,
|
||||
labels_map=None, exceptions_map=None):
|
||||
|
||||
label_width = 4 + len(str(len(labels_map)))
|
||||
argval, argrepr = cls._get_argval_argrepr(
|
||||
op, arg, offset,
|
||||
co_consts, names, varname_from_oparg)
|
||||
return Instruction(_all_opname[op], op, arg, argval, argrepr,
|
||||
offset, start_offset, starts_line, line_number,
|
||||
is_jump_target, positions)
|
||||
co_consts, names, varname_from_oparg, labels_map)
|
||||
label = labels_map.get(offset, None)
|
||||
instr = Instruction(_all_opname[op], op, arg, argval, argrepr,
|
||||
offset, start_offset, starts_line, line_number,
|
||||
label, positions)
|
||||
instr.label_width = label_width
|
||||
instr.exc_handler = exceptions_map.get(offset, None)
|
||||
return instr
|
||||
|
||||
@property
|
||||
def oparg(self):
|
||||
|
@ -447,7 +460,12 @@ def jump_target(self):
|
|||
"""
|
||||
return _get_jump_target(self.opcode, self.arg, self.offset)
|
||||
|
||||
def _disassemble(self, lineno_width=3, mark_as_current=False, offset_width=4):
|
||||
@property
|
||||
def is_jump_target(self):
|
||||
"""True if other code jumps to here, otherwise False"""
|
||||
return self.label is not None
|
||||
|
||||
def _disassemble(self, lineno_width=3, mark_as_current=False, offset_width=0):
|
||||
"""Format instruction details for inclusion in disassembly output.
|
||||
|
||||
*lineno_width* sets the width of the line number field (0 omits it)
|
||||
|
@ -463,18 +481,20 @@ def _disassemble(self, lineno_width=3, mark_as_current=False, offset_width=4):
|
|||
fields.append(lineno_fmt % self.line_number)
|
||||
else:
|
||||
fields.append(' ' * lineno_width)
|
||||
# Column: Label
|
||||
if self.label is not None:
|
||||
lbl = f"L{self.label}:"
|
||||
fields.append(f"{lbl:>{self.label_width}}")
|
||||
else:
|
||||
fields.append(' ' * self.label_width)
|
||||
# Column: Instruction offset from start of code sequence
|
||||
if offset_width > 0:
|
||||
fields.append(f"{repr(self.offset):>{offset_width}} ")
|
||||
# Column: Current instruction indicator
|
||||
if mark_as_current:
|
||||
fields.append('-->')
|
||||
else:
|
||||
fields.append(' ')
|
||||
# Column: Jump target marker
|
||||
if self.is_jump_target:
|
||||
fields.append('>>')
|
||||
else:
|
||||
fields.append(' ')
|
||||
# Column: Instruction offset from start of code sequence
|
||||
fields.append(repr(self.offset).rjust(offset_width))
|
||||
# Column: Opcode name
|
||||
fields.append(self.opname.ljust(_OPNAME_WIDTH))
|
||||
# Column: Opcode argument
|
||||
|
@ -605,10 +625,29 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
|
|||
original_code = original_code or code
|
||||
co_positions = co_positions or iter(())
|
||||
get_name = None if names is None else names.__getitem__
|
||||
labels = set(findlabels(original_code))
|
||||
for start, end, target, _, _ in exception_entries:
|
||||
for i in range(start, end):
|
||||
|
||||
def make_labels_map(original_code, exception_entries):
|
||||
jump_targets = set(findlabels(original_code))
|
||||
labels = set(jump_targets)
|
||||
for start, end, target, _, _ in exception_entries:
|
||||
labels.add(start)
|
||||
labels.add(end)
|
||||
labels.add(target)
|
||||
labels = sorted(labels)
|
||||
labels_map = {offset: i+1 for (i, offset) in enumerate(sorted(labels))}
|
||||
for e in exception_entries:
|
||||
e.start_label = labels_map[e.start]
|
||||
e.end_label = labels_map[e.end]
|
||||
e.target_label = labels_map[e.target]
|
||||
return labels_map
|
||||
|
||||
labels_map = make_labels_map(original_code, exception_entries)
|
||||
|
||||
exceptions_map = {}
|
||||
for start, end, target, _, _ in exception_entries:
|
||||
exceptions_map[start] = labels_map[target]
|
||||
exceptions_map[end] = -1
|
||||
|
||||
starts_line = False
|
||||
local_line_number = None
|
||||
line_number = None
|
||||
|
@ -621,14 +660,14 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
|
|||
line_number = local_line_number + line_offset
|
||||
else:
|
||||
line_number = None
|
||||
is_jump_target = offset in labels
|
||||
positions = Positions(*next(co_positions, ()))
|
||||
deop = _deoptop(op)
|
||||
op = code[offset]
|
||||
|
||||
yield Instruction._create(op, arg, offset, start_offset, starts_line, line_number,
|
||||
is_jump_target, positions, co_consts=co_consts,
|
||||
varname_from_oparg=varname_from_oparg, names=names)
|
||||
positions, co_consts=co_consts,
|
||||
varname_from_oparg=varname_from_oparg, names=names,
|
||||
labels_map=labels_map, exceptions_map=exceptions_map)
|
||||
|
||||
caches = _get_cache_size(_all_opname[deop])
|
||||
if not caches:
|
||||
|
@ -649,11 +688,12 @@ def _get_instructions_bytes(code, varname_from_oparg=None,
|
|||
else:
|
||||
argrepr = ""
|
||||
yield Instruction(
|
||||
"CACHE", CACHE, 0, None, argrepr, offset, offset, False, None, False,
|
||||
"CACHE", CACHE, 0, None, argrepr, offset, offset, False, None, None,
|
||||
Positions(*next(co_positions, ()))
|
||||
)
|
||||
|
||||
def disassemble(co, lasti=-1, *, file=None, show_caches=False, adaptive=False):
|
||||
def disassemble(co, lasti=-1, *, file=None, show_caches=False, adaptive=False,
|
||||
show_offsets=False):
|
||||
"""Disassemble a code object."""
|
||||
linestarts = dict(findlinestarts(co))
|
||||
exception_entries = _parse_exception_table(co)
|
||||
|
@ -662,10 +702,10 @@ def disassemble(co, lasti=-1, *, file=None, show_caches=False, adaptive=False):
|
|||
co.co_names, co.co_consts, linestarts, file=file,
|
||||
exception_entries=exception_entries,
|
||||
co_positions=co.co_positions(), show_caches=show_caches,
|
||||
original_code=co.co_code)
|
||||
original_code=co.co_code, show_offsets=show_offsets)
|
||||
|
||||
def _disassemble_recursive(co, *, file=None, depth=None, show_caches=False, adaptive=False):
|
||||
disassemble(co, file=file, show_caches=show_caches, adaptive=adaptive)
|
||||
def _disassemble_recursive(co, *, file=None, depth=None, show_caches=False, adaptive=False, show_offsets=False):
|
||||
disassemble(co, file=file, show_caches=show_caches, adaptive=adaptive, show_offsets=show_offsets)
|
||||
if depth is None or depth > 0:
|
||||
if depth is not None:
|
||||
depth = depth - 1
|
||||
|
@ -674,13 +714,15 @@ def _disassemble_recursive(co, *, file=None, depth=None, show_caches=False, adap
|
|||
print(file=file)
|
||||
print("Disassembly of %r:" % (x,), file=file)
|
||||
_disassemble_recursive(
|
||||
x, file=file, depth=depth, show_caches=show_caches, adaptive=adaptive
|
||||
x, file=file, depth=depth, show_caches=show_caches,
|
||||
adaptive=adaptive, show_offsets=show_offsets
|
||||
)
|
||||
|
||||
def _disassemble_bytes(code, lasti=-1, varname_from_oparg=None,
|
||||
names=None, co_consts=None, linestarts=None,
|
||||
*, file=None, line_offset=0, exception_entries=(),
|
||||
co_positions=None, show_caches=False, original_code=None):
|
||||
co_positions=None, show_caches=False, original_code=None,
|
||||
show_offsets=False):
|
||||
# Omit the line number column entirely if we have no line number info
|
||||
if bool(linestarts):
|
||||
linestarts_ints = [line for line in linestarts.values() if line is not None]
|
||||
|
@ -699,11 +741,15 @@ def _disassemble_bytes(code, lasti=-1, varname_from_oparg=None,
|
|||
lineno_width = len(str(None))
|
||||
else:
|
||||
lineno_width = 0
|
||||
maxoffset = len(code) - 2
|
||||
if maxoffset >= 10000:
|
||||
offset_width = len(str(maxoffset))
|
||||
if show_offsets:
|
||||
maxoffset = len(code) - 2
|
||||
if maxoffset >= 10000:
|
||||
offset_width = len(str(maxoffset))
|
||||
else:
|
||||
offset_width = 4
|
||||
else:
|
||||
offset_width = 4
|
||||
offset_width = 0
|
||||
|
||||
for instr in _get_instructions_bytes(code, varname_from_oparg, names,
|
||||
co_consts, linestarts,
|
||||
line_offset=line_offset,
|
||||
|
@ -728,8 +774,10 @@ def _disassemble_bytes(code, lasti=-1, varname_from_oparg=None,
|
|||
print("ExceptionTable:", file=file)
|
||||
for entry in exception_entries:
|
||||
lasti = " lasti" if entry.lasti else ""
|
||||
end = entry.end-2
|
||||
print(f" {entry.start} to {end} -> {entry.target} [{entry.depth}]{lasti}", file=file)
|
||||
start = entry.start_label
|
||||
end = entry.end_label
|
||||
target = entry.target_label
|
||||
print(f" L{start} to L{end} -> L{target} [{entry.depth}]{lasti}", file=file)
|
||||
|
||||
def _disassemble_str(source, **kwargs):
|
||||
"""Compile the source string, then disassemble the code object."""
|
||||
|
@ -850,7 +898,7 @@ class Bytecode:
|
|||
|
||||
Iterating over this yields the bytecode operations as Instruction instances.
|
||||
"""
|
||||
def __init__(self, x, *, first_line=None, current_offset=None, show_caches=False, adaptive=False):
|
||||
def __init__(self, x, *, first_line=None, current_offset=None, show_caches=False, adaptive=False, show_offsets=False):
|
||||
self.codeobj = co = _get_code_object(x)
|
||||
if first_line is None:
|
||||
self.first_line = co.co_firstlineno
|
||||
|
@ -864,6 +912,7 @@ def __init__(self, x, *, first_line=None, current_offset=None, show_caches=False
|
|||
self.exception_entries = _parse_exception_table(co)
|
||||
self.show_caches = show_caches
|
||||
self.adaptive = adaptive
|
||||
self.show_offsets = show_offsets
|
||||
|
||||
def __iter__(self):
|
||||
co = self.codeobj
|
||||
|
@ -912,7 +961,8 @@ def dis(self):
|
|||
exception_entries=self.exception_entries,
|
||||
co_positions=co.co_positions(),
|
||||
show_caches=self.show_caches,
|
||||
original_code=co.co_code)
|
||||
original_code=co.co_code,
|
||||
show_offsets=self.show_offsets)
|
||||
return output.getvalue()
|
||||
|
||||
|
||||
|
@ -922,12 +972,14 @@ def main():
|
|||
parser = argparse.ArgumentParser()
|
||||
parser.add_argument('-C', '--show-caches', action='store_true',
|
||||
help='show inline caches')
|
||||
parser.add_argument('-O', '--show-offsets', action='store_true',
|
||||
help='show instruction offsets')
|
||||
parser.add_argument('infile', type=argparse.FileType('rb'), nargs='?', default='-')
|
||||
args = parser.parse_args()
|
||||
with args.infile as infile:
|
||||
source = infile.read()
|
||||
code = compile(source, args.infile.name, "exec")
|
||||
dis(code, show_caches=args.show_caches)
|
||||
dis(code, show_caches=args.show_caches, show_offsets=args.show_offsets)
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
|
1383
Lib/test/test_dis.py
1383
Lib/test/test_dis.py
File diff suppressed because it is too large
Load diff
|
@ -0,0 +1 @@
|
|||
Change :mod:`dis` output to display logical labels for jump targets instead of offsets.
|
Loading…
Reference in a new issue