/usr/lib/python3.4/test/test_dis.py is in libpython3.4-testsuite 3.4.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 | # Minimal tests for dis module
from test.support import run_unittest, captured_stdout
from test.bytecode_helper import BytecodeTestCase
import difflib
import unittest
import sys
import dis
import io
import re
import types
import contextlib
def get_tb():
def _error():
try:
1 / 0
except Exception as e:
tb = e.__traceback__
return tb
tb = _error()
while tb.tb_next:
tb = tb.tb_next
return tb
TRACEBACK_CODE = get_tb().tb_frame.f_code
class _C:
def __init__(self, x):
self.x = x == 1
dis_c_instance_method = """\
%-4d 0 LOAD_FAST 1 (x)
3 LOAD_CONST 1 (1)
6 COMPARE_OP 2 (==)
9 LOAD_FAST 0 (self)
12 STORE_ATTR 0 (x)
15 LOAD_CONST 0 (None)
18 RETURN_VALUE
""" % (_C.__init__.__code__.co_firstlineno + 1,)
dis_c_instance_method_bytes = """\
0 LOAD_FAST 1 (1)
3 LOAD_CONST 1 (1)
6 COMPARE_OP 2 (==)
9 LOAD_FAST 0 (0)
12 STORE_ATTR 0 (0)
15 LOAD_CONST 0 (0)
18 RETURN_VALUE
"""
def _f(a):
print(a)
return 1
dis_f = """\
%-4d 0 LOAD_GLOBAL 0 (print)
3 LOAD_FAST 0 (a)
6 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
9 POP_TOP
%-4d 10 LOAD_CONST 1 (1)
13 RETURN_VALUE
""" % (_f.__code__.co_firstlineno + 1,
_f.__code__.co_firstlineno + 2)
dis_f_co_code = """\
0 LOAD_GLOBAL 0 (0)
3 LOAD_FAST 0 (0)
6 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
9 POP_TOP
10 LOAD_CONST 1 (1)
13 RETURN_VALUE
"""
def bug708901():
for res in range(1,
10):
pass
dis_bug708901 = """\
%-4d 0 SETUP_LOOP 23 (to 26)
3 LOAD_GLOBAL 0 (range)
6 LOAD_CONST 1 (1)
%-4d 9 LOAD_CONST 2 (10)
12 CALL_FUNCTION 2 (2 positional, 0 keyword pair)
15 GET_ITER
>> 16 FOR_ITER 6 (to 25)
19 STORE_FAST 0 (res)
%-4d 22 JUMP_ABSOLUTE 16
>> 25 POP_BLOCK
>> 26 LOAD_CONST 0 (None)
29 RETURN_VALUE
""" % (bug708901.__code__.co_firstlineno + 1,
bug708901.__code__.co_firstlineno + 2,
bug708901.__code__.co_firstlineno + 3)
def bug1333982(x=[]):
assert 0, ([s for s in x] +
1)
pass
dis_bug1333982 = """\
%3d 0 LOAD_CONST 1 (0)
3 POP_JUMP_IF_TRUE 35
6 LOAD_GLOBAL 0 (AssertionError)
9 LOAD_CONST 2 (<code object <listcomp> at 0x..., file "%s", line %d>)
12 LOAD_CONST 3 ('bug1333982.<locals>.<listcomp>')
15 MAKE_FUNCTION 0
18 LOAD_FAST 0 (x)
21 GET_ITER
22 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
%3d 25 LOAD_CONST 4 (1)
28 BINARY_ADD
29 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
32 RAISE_VARARGS 1
%3d >> 35 LOAD_CONST 0 (None)
38 RETURN_VALUE
""" % (bug1333982.__code__.co_firstlineno + 1,
__file__,
bug1333982.__code__.co_firstlineno + 1,
bug1333982.__code__.co_firstlineno + 2,
bug1333982.__code__.co_firstlineno + 3)
_BIG_LINENO_FORMAT = """\
%3d 0 LOAD_GLOBAL 0 (spam)
3 POP_TOP
4 LOAD_CONST 0 (None)
7 RETURN_VALUE
"""
dis_module_expected_results = """\
Disassembly of f:
4 0 LOAD_CONST 0 (None)
3 RETURN_VALUE
Disassembly of g:
5 0 LOAD_CONST 0 (None)
3 RETURN_VALUE
"""
expr_str = "x + 1"
dis_expr_str = """\
1 0 LOAD_NAME 0 (x)
3 LOAD_CONST 0 (1)
6 BINARY_ADD
7 RETURN_VALUE
"""
simple_stmt_str = "x = x + 1"
dis_simple_stmt_str = """\
1 0 LOAD_NAME 0 (x)
3 LOAD_CONST 0 (1)
6 BINARY_ADD
7 STORE_NAME 0 (x)
10 LOAD_CONST 1 (None)
13 RETURN_VALUE
"""
compound_stmt_str = """\
x = 0
while 1:
x += 1"""
# Trailing newline has been deliberately omitted
dis_compound_stmt_str = """\
1 0 LOAD_CONST 0 (0)
3 STORE_NAME 0 (x)
2 6 SETUP_LOOP 13 (to 22)
3 >> 9 LOAD_NAME 0 (x)
12 LOAD_CONST 1 (1)
15 INPLACE_ADD
16 STORE_NAME 0 (x)
19 JUMP_ABSOLUTE 9
>> 22 LOAD_CONST 2 (None)
25 RETURN_VALUE
"""
dis_traceback = """\
%-4d 0 SETUP_EXCEPT 12 (to 15)
%-4d 3 LOAD_CONST 1 (1)
6 LOAD_CONST 2 (0)
--> 9 BINARY_TRUE_DIVIDE
10 POP_TOP
11 POP_BLOCK
12 JUMP_FORWARD 46 (to 61)
%-4d >> 15 DUP_TOP
16 LOAD_GLOBAL 0 (Exception)
19 COMPARE_OP 10 (exception match)
22 POP_JUMP_IF_FALSE 60
25 POP_TOP
26 STORE_FAST 0 (e)
29 POP_TOP
30 SETUP_FINALLY 14 (to 47)
%-4d 33 LOAD_FAST 0 (e)
36 LOAD_ATTR 1 (__traceback__)
39 STORE_FAST 1 (tb)
42 POP_BLOCK
43 POP_EXCEPT
44 LOAD_CONST 0 (None)
>> 47 LOAD_CONST 0 (None)
50 STORE_FAST 0 (e)
53 DELETE_FAST 0 (e)
56 END_FINALLY
57 JUMP_FORWARD 1 (to 61)
>> 60 END_FINALLY
%-4d >> 61 LOAD_FAST 1 (tb)
64 RETURN_VALUE
""" % (TRACEBACK_CODE.co_firstlineno + 1,
TRACEBACK_CODE.co_firstlineno + 2,
TRACEBACK_CODE.co_firstlineno + 3,
TRACEBACK_CODE.co_firstlineno + 4,
TRACEBACK_CODE.co_firstlineno + 5)
class DisTests(unittest.TestCase):
def get_disassembly(self, func, lasti=-1, wrapper=True):
# We want to test the default printing behaviour, not the file arg
output = io.StringIO()
with contextlib.redirect_stdout(output):
if wrapper:
dis.dis(func)
else:
dis.disassemble(func, lasti)
return output.getvalue()
def get_disassemble_as_string(self, func, lasti=-1):
return self.get_disassembly(func, lasti, False)
def strip_addresses(self, text):
return re.sub(r'\b0x[0-9A-Fa-f]+\b', '0x...', text)
def do_disassembly_test(self, func, expected):
got = self.get_disassembly(func)
if got != expected:
got = self.strip_addresses(got)
self.assertEqual(got, expected)
def test_opmap(self):
self.assertEqual(dis.opmap["NOP"], 9)
self.assertIn(dis.opmap["LOAD_CONST"], dis.hasconst)
self.assertIn(dis.opmap["STORE_NAME"], dis.hasname)
def test_opname(self):
self.assertEqual(dis.opname[dis.opmap["LOAD_FAST"]], "LOAD_FAST")
def test_boundaries(self):
self.assertEqual(dis.opmap["EXTENDED_ARG"], dis.EXTENDED_ARG)
self.assertEqual(dis.opmap["STORE_NAME"], dis.HAVE_ARGUMENT)
def test_dis(self):
self.do_disassembly_test(_f, dis_f)
def test_bug_708901(self):
self.do_disassembly_test(bug708901, dis_bug708901)
def test_bug_1333982(self):
# This one is checking bytecodes generated for an `assert` statement,
# so fails if the tests are run with -O. Skip this test then.
if not __debug__:
self.skipTest('need asserts, run without -O')
self.do_disassembly_test(bug1333982, dis_bug1333982)
def test_big_linenos(self):
def func(count):
namespace = {}
func = "def foo():\n " + "".join(["\n "] * count + ["spam\n"])
exec(func, namespace)
return namespace['foo']
# Test all small ranges
for i in range(1, 300):
expected = _BIG_LINENO_FORMAT % (i + 2)
self.do_disassembly_test(func(i), expected)
# Test some larger ranges too
for i in range(300, 5000, 10):
expected = _BIG_LINENO_FORMAT % (i + 2)
self.do_disassembly_test(func(i), expected)
from test import dis_module
self.do_disassembly_test(dis_module, dis_module_expected_results)
def test_disassemble_str(self):
self.do_disassembly_test(expr_str, dis_expr_str)
self.do_disassembly_test(simple_stmt_str, dis_simple_stmt_str)
self.do_disassembly_test(compound_stmt_str, dis_compound_stmt_str)
def test_disassemble_bytes(self):
self.do_disassembly_test(_f.__code__.co_code, dis_f_co_code)
def test_disassemble_method(self):
self.do_disassembly_test(_C(1).__init__, dis_c_instance_method)
def test_disassemble_method_bytes(self):
method_bytecode = _C(1).__init__.__code__.co_code
self.do_disassembly_test(method_bytecode, dis_c_instance_method_bytes)
def test_dis_none(self):
try:
del sys.last_traceback
except AttributeError:
pass
self.assertRaises(RuntimeError, dis.dis, None)
def test_dis_traceback(self):
try:
del sys.last_traceback
except AttributeError:
pass
try:
1/0
except Exception as e:
tb = e.__traceback__
sys.last_traceback = tb
tb_dis = self.get_disassemble_as_string(tb.tb_frame.f_code, tb.tb_lasti)
self.do_disassembly_test(None, tb_dis)
def test_dis_object(self):
self.assertRaises(TypeError, dis.dis, object())
class DisWithFileTests(DisTests):
# Run the tests again, using the file arg instead of print
def get_disassembly(self, func, lasti=-1, wrapper=True):
output = io.StringIO()
if wrapper:
dis.dis(func, file=output)
else:
dis.disassemble(func, lasti, file=output)
return output.getvalue()
code_info_code_info = """\
Name: code_info
Filename: (.*)
Argument count: 1
Kw-only arguments: 0
Number of locals: 1
Stack size: 3
Flags: OPTIMIZED, NEWLOCALS, NOFREE
Constants:
0: %r
Names:
0: _format_code_info
1: _get_code_object
Variable names:
0: x""" % (('Formatted details of methods, functions, or code.',)
if sys.flags.optimize < 2 else (None,))
@staticmethod
def tricky(x, y, z=True, *args, c, d, e=[], **kwds):
def f(c=c):
print(x, y, z, c, d, e, f)
yield x, y, z, c, d, e, f
code_info_tricky = """\
Name: tricky
Filename: (.*)
Argument count: 3
Kw-only arguments: 3
Number of locals: 8
Stack size: 7
Flags: OPTIMIZED, NEWLOCALS, VARARGS, VARKEYWORDS, GENERATOR
Constants:
0: None
1: <code object f at (.*), file "(.*)", line (.*)>
2: 'tricky.<locals>.f'
Variable names:
0: x
1: y
2: z
3: c
4: d
5: e
6: args
7: kwds
Cell variables:
0: [edfxyz]
1: [edfxyz]
2: [edfxyz]
3: [edfxyz]
4: [edfxyz]
5: [edfxyz]"""
# NOTE: the order of the cell variables above depends on dictionary order!
co_tricky_nested_f = tricky.__func__.__code__.co_consts[1]
code_info_tricky_nested_f = """\
Name: f
Filename: (.*)
Argument count: 1
Kw-only arguments: 0
Number of locals: 1
Stack size: 8
Flags: OPTIMIZED, NEWLOCALS, NESTED
Constants:
0: None
Names:
0: print
Variable names:
0: c
Free variables:
0: [edfxyz]
1: [edfxyz]
2: [edfxyz]
3: [edfxyz]
4: [edfxyz]
5: [edfxyz]"""
code_info_expr_str = """\
Name: <module>
Filename: <disassembly>
Argument count: 0
Kw-only arguments: 0
Number of locals: 0
Stack size: 2
Flags: NOFREE
Constants:
0: 1
Names:
0: x"""
code_info_simple_stmt_str = """\
Name: <module>
Filename: <disassembly>
Argument count: 0
Kw-only arguments: 0
Number of locals: 0
Stack size: 2
Flags: NOFREE
Constants:
0: 1
1: None
Names:
0: x"""
code_info_compound_stmt_str = """\
Name: <module>
Filename: <disassembly>
Argument count: 0
Kw-only arguments: 0
Number of locals: 0
Stack size: 2
Flags: NOFREE
Constants:
0: 0
1: 1
2: None
Names:
0: x"""
class CodeInfoTests(unittest.TestCase):
test_pairs = [
(dis.code_info, code_info_code_info),
(tricky, code_info_tricky),
(co_tricky_nested_f, code_info_tricky_nested_f),
(expr_str, code_info_expr_str),
(simple_stmt_str, code_info_simple_stmt_str),
(compound_stmt_str, code_info_compound_stmt_str),
]
def test_code_info(self):
self.maxDiff = 1000
for x, expected in self.test_pairs:
self.assertRegex(dis.code_info(x), expected)
def test_show_code(self):
self.maxDiff = 1000
for x, expected in self.test_pairs:
with captured_stdout() as output:
dis.show_code(x)
self.assertRegex(output.getvalue(), expected+"\n")
output = io.StringIO()
dis.show_code(x, file=output)
self.assertRegex(output.getvalue(), expected)
def test_code_info_object(self):
self.assertRaises(TypeError, dis.code_info, object())
def test_pretty_flags_no_flags(self):
self.assertEqual(dis.pretty_flags(0), '0x0')
# Fodder for instruction introspection tests
# Editing any of these may require recalculating the expected output
def outer(a=1, b=2):
def f(c=3, d=4):
def inner(e=5, f=6):
print(a, b, c, d, e, f)
print(a, b, c, d)
return inner
print(a, b, '', 1, [], {}, "Hello world!")
return f
def jumpy():
# This won't actually run (but that's OK, we only disassemble it)
for i in range(10):
print(i)
if i < 4:
continue
if i > 6:
break
else:
print("I can haz else clause?")
while i:
print(i)
i -= 1
if i > 6:
continue
if i < 4:
break
else:
print("Who let lolcatz into this test suite?")
try:
1 / 0
except ZeroDivisionError:
print("Here we go, here we go, here we go...")
else:
with i as dodgy:
print("Never reach this")
finally:
print("OK, now we're done")
# End fodder for opinfo generation tests
expected_outer_line = 1
_line_offset = outer.__code__.co_firstlineno - 1
code_object_f = outer.__code__.co_consts[3]
expected_f_line = code_object_f.co_firstlineno - _line_offset
code_object_inner = code_object_f.co_consts[3]
expected_inner_line = code_object_inner.co_firstlineno - _line_offset
expected_jumpy_line = 1
# The following lines are useful to regenerate the expected results after
# either the fodder is modified or the bytecode generation changes
# After regeneration, update the references to code_object_f and
# code_object_inner before rerunning the tests
#_instructions = dis.get_instructions(outer, first_line=expected_outer_line)
#print('expected_opinfo_outer = [\n ',
#',\n '.join(map(str, _instructions)), ',\n]', sep='')
#_instructions = dis.get_instructions(outer(), first_line=expected_outer_line)
#print('expected_opinfo_f = [\n ',
#',\n '.join(map(str, _instructions)), ',\n]', sep='')
#_instructions = dis.get_instructions(outer()(), first_line=expected_outer_line)
#print('expected_opinfo_inner = [\n ',
#',\n '.join(map(str, _instructions)), ',\n]', sep='')
#_instructions = dis.get_instructions(jumpy, first_line=expected_jumpy_line)
#print('expected_opinfo_jumpy = [\n ',
#',\n '.join(map(str, _instructions)), ',\n]', sep='')
Instruction = dis.Instruction
expected_opinfo_outer = [
Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=3, argrepr='3', offset=0, starts_line=2, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=4, argrepr='4', offset=3, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=0, argval='a', argrepr='a', offset=6, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=1, argval='b', argrepr='b', offset=9, starts_line=None, is_jump_target=False),
Instruction(opname='BUILD_TUPLE', opcode=102, arg=2, argval=2, argrepr='', offset=12, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=3, argval=code_object_f, argrepr=repr(code_object_f), offset=15, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=4, argval='outer.<locals>.f', argrepr="'outer.<locals>.f'", offset=18, starts_line=None, is_jump_target=False),
Instruction(opname='MAKE_CLOSURE', opcode=134, arg=2, argval=2, argrepr='', offset=21, starts_line=None, is_jump_target=False),
Instruction(opname='STORE_FAST', opcode=125, arg=2, argval='f', argrepr='f', offset=24, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=27, starts_line=7, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='a', argrepr='a', offset=30, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='b', argrepr='b', offset=33, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=5, argval='', argrepr="''", offset=36, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=6, argval=1, argrepr='1', offset=39, starts_line=None, is_jump_target=False),
Instruction(opname='BUILD_LIST', opcode=103, arg=0, argval=0, argrepr='', offset=42, starts_line=None, is_jump_target=False),
Instruction(opname='BUILD_MAP', opcode=105, arg=0, argval=0, argrepr='', offset=45, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=7, argval='Hello world!', argrepr="'Hello world!'", offset=48, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=7, argval=7, argrepr='7 positional, 0 keyword pair', offset=51, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=54, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=2, argval='f', argrepr='f', offset=55, starts_line=8, is_jump_target=False),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=58, starts_line=None, is_jump_target=False),
]
expected_opinfo_f = [
Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=5, argrepr='5', offset=0, starts_line=3, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=6, argrepr='6', offset=3, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=2, argval='a', argrepr='a', offset=6, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=3, argval='b', argrepr='b', offset=9, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=0, argval='c', argrepr='c', offset=12, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CLOSURE', opcode=135, arg=1, argval='d', argrepr='d', offset=15, starts_line=None, is_jump_target=False),
Instruction(opname='BUILD_TUPLE', opcode=102, arg=4, argval=4, argrepr='', offset=18, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=3, argval=code_object_inner, argrepr=repr(code_object_inner), offset=21, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=4, argval='outer.<locals>.f.<locals>.inner', argrepr="'outer.<locals>.f.<locals>.inner'", offset=24, starts_line=None, is_jump_target=False),
Instruction(opname='MAKE_CLOSURE', opcode=134, arg=2, argval=2, argrepr='', offset=27, starts_line=None, is_jump_target=False),
Instruction(opname='STORE_FAST', opcode=125, arg=2, argval='inner', argrepr='inner', offset=30, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=33, starts_line=5, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=2, argval='a', argrepr='a', offset=36, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=3, argval='b', argrepr='b', offset=39, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='c', argrepr='c', offset=42, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='d', argrepr='d', offset=45, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=4, argval=4, argrepr='4 positional, 0 keyword pair', offset=48, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=51, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=2, argval='inner', argrepr='inner', offset=52, starts_line=6, is_jump_target=False),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=55, starts_line=None, is_jump_target=False),
]
expected_opinfo_inner = [
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=0, starts_line=4, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='a', argrepr='a', offset=3, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='b', argrepr='b', offset=6, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=2, argval='c', argrepr='c', offset=9, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_DEREF', opcode=136, arg=3, argval='d', argrepr='d', offset=12, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='e', argrepr='e', offset=15, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=1, argval='f', argrepr='f', offset=18, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=6, argval=6, argrepr='6 positional, 0 keyword pair', offset=21, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=24, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=25, starts_line=None, is_jump_target=False),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=28, starts_line=None, is_jump_target=False),
]
expected_opinfo_jumpy = [
Instruction(opname='SETUP_LOOP', opcode=120, arg=74, argval=77, argrepr='to 77', offset=0, starts_line=3, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='range', argrepr='range', offset=3, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=10, argrepr='10', offset=6, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=9, starts_line=None, is_jump_target=False),
Instruction(opname='GET_ITER', opcode=68, arg=None, argval=None, argrepr='', offset=12, starts_line=None, is_jump_target=False),
Instruction(opname='FOR_ITER', opcode=93, arg=50, argval=66, argrepr='to 66', offset=13, starts_line=None, is_jump_target=True),
Instruction(opname='STORE_FAST', opcode=125, arg=0, argval='i', argrepr='i', offset=16, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=19, starts_line=4, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=22, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=25, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=28, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=29, starts_line=5, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=4, argrepr='4', offset=32, starts_line=None, is_jump_target=False),
Instruction(opname='COMPARE_OP', opcode=107, arg=0, argval='<', argrepr='<', offset=35, starts_line=None, is_jump_target=False),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=47, argval=47, argrepr='', offset=38, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=41, starts_line=6, is_jump_target=False),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=0, argval=47, argrepr='to 47', offset=44, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=47, starts_line=7, is_jump_target=True),
Instruction(opname='LOAD_CONST', opcode=100, arg=3, argval=6, argrepr='6', offset=50, starts_line=None, is_jump_target=False),
Instruction(opname='COMPARE_OP', opcode=107, arg=4, argval='>', argrepr='>', offset=53, starts_line=None, is_jump_target=False),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=13, argval=13, argrepr='', offset=56, starts_line=None, is_jump_target=False),
Instruction(opname='BREAK_LOOP', opcode=80, arg=None, argval=None, argrepr='', offset=59, starts_line=8, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=60, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=63, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=66, starts_line=None, is_jump_target=True),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=67, starts_line=10, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=4, argval='I can haz else clause?', argrepr="'I can haz else clause?'", offset=70, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=73, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=76, starts_line=None, is_jump_target=False),
Instruction(opname='SETUP_LOOP', opcode=120, arg=74, argval=154, argrepr='to 154', offset=77, starts_line=11, is_jump_target=True),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=80, starts_line=None, is_jump_target=True),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=143, argval=143, argrepr='', offset=83, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=86, starts_line=12, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=89, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=92, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=95, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=96, starts_line=13, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=5, argval=1, argrepr='1', offset=99, starts_line=None, is_jump_target=False),
Instruction(opname='INPLACE_SUBTRACT', opcode=56, arg=None, argval=None, argrepr='', offset=102, starts_line=None, is_jump_target=False),
Instruction(opname='STORE_FAST', opcode=125, arg=0, argval='i', argrepr='i', offset=103, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=106, starts_line=14, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=3, argval=6, argrepr='6', offset=109, starts_line=None, is_jump_target=False),
Instruction(opname='COMPARE_OP', opcode=107, arg=4, argval='>', argrepr='>', offset=112, starts_line=None, is_jump_target=False),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=124, argval=124, argrepr='', offset=115, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=80, argval=80, argrepr='', offset=118, starts_line=15, is_jump_target=False),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=0, argval=124, argrepr='to 124', offset=121, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=124, starts_line=16, is_jump_target=True),
Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=4, argrepr='4', offset=127, starts_line=None, is_jump_target=False),
Instruction(opname='COMPARE_OP', opcode=107, arg=0, argval='<', argrepr='<', offset=130, starts_line=None, is_jump_target=False),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=80, argval=80, argrepr='', offset=133, starts_line=None, is_jump_target=False),
Instruction(opname='BREAK_LOOP', opcode=80, arg=None, argval=None, argrepr='', offset=136, starts_line=17, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=80, argval=80, argrepr='', offset=137, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=80, argval=80, argrepr='', offset=140, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=143, starts_line=None, is_jump_target=True),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=144, starts_line=19, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=6, argval='Who let lolcatz into this test suite?', argrepr="'Who let lolcatz into this test suite?'", offset=147, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=150, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=153, starts_line=None, is_jump_target=False),
Instruction(opname='SETUP_FINALLY', opcode=122, arg=72, argval=229, argrepr='to 229', offset=154, starts_line=20, is_jump_target=True),
Instruction(opname='SETUP_EXCEPT', opcode=121, arg=12, argval=172, argrepr='to 172', offset=157, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=5, argval=1, argrepr='1', offset=160, starts_line=21, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=7, argval=0, argrepr='0', offset=163, starts_line=None, is_jump_target=False),
Instruction(opname='BINARY_TRUE_DIVIDE', opcode=27, arg=None, argval=None, argrepr='', offset=166, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=167, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=168, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=28, argval=200, argrepr='to 200', offset=169, starts_line=None, is_jump_target=False),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=172, starts_line=22, is_jump_target=True),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=2, argval='ZeroDivisionError', argrepr='ZeroDivisionError', offset=173, starts_line=None, is_jump_target=False),
Instruction(opname='COMPARE_OP', opcode=107, arg=10, argval='exception match', argrepr='exception match', offset=176, starts_line=None, is_jump_target=False),
Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=199, argval=199, argrepr='', offset=179, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=182, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=183, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=184, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=185, starts_line=23, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=8, argval='Here we go, here we go, here we go...', argrepr="'Here we go, here we go, here we go...'", offset=188, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=191, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=194, starts_line=None, is_jump_target=False),
Instruction(opname='POP_EXCEPT', opcode=89, arg=None, argval=None, argrepr='', offset=195, starts_line=None, is_jump_target=False),
Instruction(opname='JUMP_FORWARD', opcode=110, arg=26, argval=225, argrepr='to 225', offset=196, starts_line=None, is_jump_target=False),
Instruction(opname='END_FINALLY', opcode=88, arg=None, argval=None, argrepr='', offset=199, starts_line=None, is_jump_target=True),
Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=200, starts_line=25, is_jump_target=True),
Instruction(opname='SETUP_WITH', opcode=143, arg=17, argval=223, argrepr='to 223', offset=203, starts_line=None, is_jump_target=False),
Instruction(opname='STORE_FAST', opcode=125, arg=1, argval='dodgy', argrepr='dodgy', offset=206, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=209, starts_line=26, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=9, argval='Never reach this', argrepr="'Never reach this'", offset=212, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=215, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=218, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=219, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=220, starts_line=None, is_jump_target=False),
Instruction(opname='WITH_CLEANUP', opcode=81, arg=None, argval=None, argrepr='', offset=223, starts_line=None, is_jump_target=True),
Instruction(opname='END_FINALLY', opcode=88, arg=None, argval=None, argrepr='', offset=224, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=225, starts_line=None, is_jump_target=True),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=226, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=229, starts_line=28, is_jump_target=True),
Instruction(opname='LOAD_CONST', opcode=100, arg=10, argval="OK, now we're done", argrepr='"OK, now we\'re done"', offset=232, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='1 positional, 0 keyword pair', offset=235, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=238, starts_line=None, is_jump_target=False),
Instruction(opname='END_FINALLY', opcode=88, arg=None, argval=None, argrepr='', offset=239, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=240, starts_line=None, is_jump_target=False),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=243, starts_line=None, is_jump_target=False),
]
# One last piece of inspect fodder to check the default line number handling
def simple(): pass
expected_opinfo_simple = [
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=0, starts_line=simple.__code__.co_firstlineno, is_jump_target=False),
Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=3, starts_line=None, is_jump_target=False)
]
class InstructionTests(BytecodeTestCase):
def test_default_first_line(self):
actual = dis.get_instructions(simple)
self.assertEqual(list(actual), expected_opinfo_simple)
def test_first_line_set_to_None(self):
actual = dis.get_instructions(simple, first_line=None)
self.assertEqual(list(actual), expected_opinfo_simple)
def test_outer(self):
actual = dis.get_instructions(outer, first_line=expected_outer_line)
self.assertEqual(list(actual), expected_opinfo_outer)
def test_nested(self):
with captured_stdout():
f = outer()
actual = dis.get_instructions(f, first_line=expected_f_line)
self.assertEqual(list(actual), expected_opinfo_f)
def test_doubly_nested(self):
with captured_stdout():
inner = outer()()
actual = dis.get_instructions(inner, first_line=expected_inner_line)
self.assertEqual(list(actual), expected_opinfo_inner)
def test_jumpy(self):
actual = dis.get_instructions(jumpy, first_line=expected_jumpy_line)
self.assertEqual(list(actual), expected_opinfo_jumpy)
# get_instructions has its own tests above, so can rely on it to validate
# the object oriented API
class BytecodeTests(unittest.TestCase):
def test_instantiation(self):
# Test with function, method, code string and code object
for obj in [_f, _C(1).__init__, "a=1", _f.__code__]:
with self.subTest(obj=obj):
b = dis.Bytecode(obj)
self.assertIsInstance(b.codeobj, types.CodeType)
self.assertRaises(TypeError, dis.Bytecode, object())
def test_iteration(self):
for obj in [_f, _C(1).__init__, "a=1", _f.__code__]:
with self.subTest(obj=obj):
via_object = list(dis.Bytecode(obj))
via_generator = list(dis.get_instructions(obj))
self.assertEqual(via_object, via_generator)
def test_explicit_first_line(self):
actual = dis.Bytecode(outer, first_line=expected_outer_line)
self.assertEqual(list(actual), expected_opinfo_outer)
def test_source_line_in_disassembly(self):
# Use the line in the source code
actual = dis.Bytecode(simple).dis()[:3]
expected = "{:>3}".format(simple.__code__.co_firstlineno)
self.assertEqual(actual, expected)
# Use an explicit first line number
actual = dis.Bytecode(simple, first_line=350).dis()[:3]
self.assertEqual(actual, "350")
def test_info(self):
self.maxDiff = 1000
for x, expected in CodeInfoTests.test_pairs:
b = dis.Bytecode(x)
self.assertRegex(b.info(), expected)
def test_disassembled(self):
actual = dis.Bytecode(_f).dis()
self.assertEqual(actual, dis_f)
def test_from_traceback(self):
tb = get_tb()
b = dis.Bytecode.from_traceback(tb)
while tb.tb_next: tb = tb.tb_next
self.assertEqual(b.current_offset, tb.tb_lasti)
def test_from_traceback_dis(self):
tb = get_tb()
b = dis.Bytecode.from_traceback(tb)
self.assertEqual(b.dis(), dis_traceback)
if __name__ == "__main__":
unittest.main()
|