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agriconnect / libpython3.8-testsuite   deb

Repository URL to install this package:

Version: 3.8.5-1+stretch1 

/ usr / lib / python3.8 / test / test_dis.py

# Minimal tests for dis module

from test.support import captured_stdout
from test.bytecode_helper import BytecodeTestCase
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

    @staticmethod
    def sm(x):
        x = x == 1

    @classmethod
    def cm(cls, x):
        cls.x = x == 1

dis_c_instance_method = """\
%3d           0 LOAD_FAST                1 (x)
              2 LOAD_CONST               1 (1)
              4 COMPARE_OP               2 (==)
              6 LOAD_FAST                0 (self)
              8 STORE_ATTR               0 (x)
             10 LOAD_CONST               0 (None)
             12 RETURN_VALUE
""" % (_C.__init__.__code__.co_firstlineno + 1,)

dis_c_instance_method_bytes = """\
          0 LOAD_FAST                1 (1)
          2 LOAD_CONST               1 (1)
          4 COMPARE_OP               2 (==)
          6 LOAD_FAST                0 (0)
          8 STORE_ATTR               0 (0)
         10 LOAD_CONST               0 (0)
         12 RETURN_VALUE
"""

dis_c_class_method = """\
%3d           0 LOAD_FAST                1 (x)
              2 LOAD_CONST               1 (1)
              4 COMPARE_OP               2 (==)
              6 LOAD_FAST                0 (cls)
              8 STORE_ATTR               0 (x)
             10 LOAD_CONST               0 (None)
             12 RETURN_VALUE
""" % (_C.cm.__code__.co_firstlineno + 2,)

dis_c_static_method = """\
%3d           0 LOAD_FAST                0 (x)
              2 LOAD_CONST               1 (1)
              4 COMPARE_OP               2 (==)
              6 STORE_FAST               0 (x)
              8 LOAD_CONST               0 (None)
             10 RETURN_VALUE
""" % (_C.sm.__code__.co_firstlineno + 2,)

# Class disassembling info has an extra newline at end.
dis_c = """\
Disassembly of %s:
%s
Disassembly of %s:
%s
Disassembly of %s:
%s
""" % (_C.__init__.__name__, dis_c_instance_method,
       _C.cm.__name__, dis_c_class_method,
       _C.sm.__name__, dis_c_static_method)

def _f(a):
    print(a)
    return 1

dis_f = """\
%3d           0 LOAD_GLOBAL              0 (print)
              2 LOAD_FAST                0 (a)
              4 CALL_FUNCTION            1
              6 POP_TOP

%3d           8 LOAD_CONST               1 (1)
             10 RETURN_VALUE
""" % (_f.__code__.co_firstlineno + 1,
       _f.__code__.co_firstlineno + 2)


dis_f_co_code = """\
          0 LOAD_GLOBAL              0 (0)
          2 LOAD_FAST                0 (0)
          4 CALL_FUNCTION            1
          6 POP_TOP
          8 LOAD_CONST               1 (1)
         10 RETURN_VALUE
"""


def bug708901():
    for res in range(1,
                     10):
        pass

dis_bug708901 = """\
%3d           0 LOAD_GLOBAL              0 (range)
              2 LOAD_CONST               1 (1)

%3d           4 LOAD_CONST               2 (10)

%3d           6 CALL_FUNCTION            2
              8 GET_ITER
        >>   10 FOR_ITER                 4 (to 16)
             12 STORE_FAST               0 (res)

%3d          14 JUMP_ABSOLUTE           10
        >>   16 LOAD_CONST               0 (None)
             18 RETURN_VALUE
""" % (bug708901.__code__.co_firstlineno + 1,
       bug708901.__code__.co_firstlineno + 2,
       bug708901.__code__.co_firstlineno + 1,
       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)
              2 POP_JUMP_IF_TRUE        26
              4 LOAD_GLOBAL              0 (AssertionError)
              6 LOAD_CONST               2 (<code object <listcomp> at 0x..., file "%s", line %d>)
              8 LOAD_CONST               3 ('bug1333982.<locals>.<listcomp>')
             10 MAKE_FUNCTION            0
             12 LOAD_FAST                0 (x)
             14 GET_ITER
             16 CALL_FUNCTION            1

%3d          18 LOAD_CONST               4 (1)

%3d          20 BINARY_ADD
             22 CALL_FUNCTION            1
             24 RAISE_VARARGS            1

%3d     >>   26 LOAD_CONST               0 (None)
             28 RETURN_VALUE
""" % (bug1333982.__code__.co_firstlineno + 1,
       __file__,
       bug1333982.__code__.co_firstlineno + 1,
       bug1333982.__code__.co_firstlineno + 2,
       bug1333982.__code__.co_firstlineno + 1,
       bug1333982.__code__.co_firstlineno + 3)

_BIG_LINENO_FORMAT = """\
%3d           0 LOAD_GLOBAL              0 (spam)
              2 POP_TOP
              4 LOAD_CONST               0 (None)
              6 RETURN_VALUE
"""

_BIG_LINENO_FORMAT2 = """\
%4d           0 LOAD_GLOBAL              0 (spam)
               2 POP_TOP
               4 LOAD_CONST               0 (None)
               6 RETURN_VALUE
"""

dis_module_expected_results = """\
Disassembly of f:
  4           0 LOAD_CONST               0 (None)
              2 RETURN_VALUE

Disassembly of g:
  5           0 LOAD_CONST               0 (None)
              2 RETURN_VALUE

"""

expr_str = "x + 1"

dis_expr_str = """\
  1           0 LOAD_NAME                0 (x)
              2 LOAD_CONST               0 (1)
              4 BINARY_ADD
              6 RETURN_VALUE
"""

simple_stmt_str = "x = x + 1"

dis_simple_stmt_str = """\
  1           0 LOAD_NAME                0 (x)
              2 LOAD_CONST               0 (1)
              4 BINARY_ADD
              6 STORE_NAME               0 (x)
              8 LOAD_CONST               1 (None)
             10 RETURN_VALUE
"""

annot_stmt_str = """\

x: int = 1
y: fun(1)
lst[fun(0)]: int = 1
"""
# leading newline is for a reason (tests lineno)

dis_annot_stmt_str = """\
  2           0 SETUP_ANNOTATIONS
              2 LOAD_CONST               0 (1)
              4 STORE_NAME               0 (x)
              6 LOAD_NAME                1 (int)
              8 LOAD_NAME                2 (__annotations__)
             10 LOAD_CONST               1 ('x')
             12 STORE_SUBSCR

  3          14 LOAD_NAME                3 (fun)
             16 LOAD_CONST               0 (1)
             18 CALL_FUNCTION            1
             20 LOAD_NAME                2 (__annotations__)
             22 LOAD_CONST               2 ('y')
             24 STORE_SUBSCR

  4          26 LOAD_CONST               0 (1)
             28 LOAD_NAME                4 (lst)
             30 LOAD_NAME                3 (fun)
             32 LOAD_CONST               3 (0)
             34 CALL_FUNCTION            1
             36 STORE_SUBSCR
             38 LOAD_NAME                1 (int)
             40 POP_TOP
             42 LOAD_CONST               4 (None)
             44 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)
              2 STORE_NAME               0 (x)

  3     >>    4 LOAD_NAME                0 (x)
              6 LOAD_CONST               1 (1)
              8 INPLACE_ADD
             10 STORE_NAME               0 (x)
             12 JUMP_ABSOLUTE            4
             14 LOAD_CONST               2 (None)
             16 RETURN_VALUE
"""

dis_traceback = """\
%3d           0 SETUP_FINALLY           12 (to 14)

%3d           2 LOAD_CONST               1 (1)
              4 LOAD_CONST               2 (0)
    -->       6 BINARY_TRUE_DIVIDE
              8 POP_TOP
             10 POP_BLOCK
             12 JUMP_FORWARD            40 (to 54)

%3d     >>   14 DUP_TOP
             16 LOAD_GLOBAL              0 (Exception)
             18 COMPARE_OP              10 (exception match)
             20 POP_JUMP_IF_FALSE       52
             22 POP_TOP
             24 STORE_FAST               0 (e)
             26 POP_TOP
             28 SETUP_FINALLY           10 (to 40)

%3d          30 LOAD_FAST                0 (e)
             32 LOAD_ATTR                1 (__traceback__)
             34 STORE_FAST               1 (tb)
             36 POP_BLOCK
             38 BEGIN_FINALLY
        >>   40 LOAD_CONST               0 (None)
             42 STORE_FAST               0 (e)
             44 DELETE_FAST              0 (e)
             46 END_FINALLY
             48 POP_EXCEPT
             50 JUMP_FORWARD             2 (to 54)
        >>   52 END_FINALLY

%3d     >>   54 LOAD_FAST                1 (tb)
             56 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)

def _fstring(a, b, c, d):
    return f'{a} {b:4} {c!r} {d!r:4}'

dis_fstring = """\
%3d           0 LOAD_FAST                0 (a)
              2 FORMAT_VALUE             0
              4 LOAD_CONST               1 (' ')
              6 LOAD_FAST                1 (b)
              8 LOAD_CONST               2 ('4')
             10 FORMAT_VALUE             4 (with format)
             12 LOAD_CONST               1 (' ')
             14 LOAD_FAST                2 (c)
             16 FORMAT_VALUE             2 (repr)
             18 LOAD_CONST               1 (' ')
             20 LOAD_FAST                3 (d)
             22 LOAD_CONST               2 ('4')
             24 FORMAT_VALUE             6 (repr, with format)
             26 BUILD_STRING             7
             28 RETURN_VALUE
""" % (_fstring.__code__.co_firstlineno + 1,)

def _g(x):
    yield x

async def _ag(x):
    yield x

async def _co(x):
    async for item in _ag(x):
        pass

def _h(y):
    def foo(x):
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