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Issue #11816: multiple improvements to the dis module
* get_instructions generator * ability to redirect output to a file * Bytecode and Instruction abstractions Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver.
This commit is contained in:
Nick Coghlan
parent
9d351332a7
commit
b39fd0c9b8
5 changed files with 772 additions and 190 deletions
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@ -1,11 +1,13 @@
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# Minimal tests for dis module
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from test.support import run_unittest, captured_stdout
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from test.bytecode_helper import BytecodeTestCase
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import difflib
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import unittest
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import sys
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import dis
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import io
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import types
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class _C:
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def __init__(self, x):
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@ -22,12 +24,12 @@ dis_c_instance_method = """\
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""" % (_C.__init__.__code__.co_firstlineno + 1,)
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dis_c_instance_method_bytes = """\
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0 LOAD_FAST 1 (1)
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3 LOAD_CONST 1 (1)
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6 COMPARE_OP 2 (==)
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9 LOAD_FAST 0 (0)
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12 STORE_ATTR 0 (0)
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15 LOAD_CONST 0 (0)
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0 LOAD_FAST 1 (1)
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3 LOAD_CONST 1 (1)
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6 COMPARE_OP 2 (==)
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9 LOAD_FAST 0 (0)
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12 STORE_ATTR 0 (0)
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15 LOAD_CONST 0 (0)
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18 RETURN_VALUE
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"""
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@ -48,11 +50,11 @@ dis_f = """\
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dis_f_co_code = """\
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0 LOAD_GLOBAL 0 (0)
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3 LOAD_FAST 0 (0)
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6 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
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0 LOAD_GLOBAL 0 (0)
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3 LOAD_FAST 0 (0)
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6 CALL_FUNCTION 1 (1 positional, 0 keyword pair)
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9 POP_TOP
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10 LOAD_CONST 1 (1)
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10 LOAD_CONST 1 (1)
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13 RETURN_VALUE
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"""
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@ -298,29 +300,16 @@ Filename: (.*)
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Argument count: 1
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Kw-only arguments: 0
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Number of locals: 1
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Stack size: 4
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Stack size: 3
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Flags: OPTIMIZED, NEWLOCALS, NOFREE
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Constants:
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0: %r
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1: '__func__'
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2: '__code__'
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3: '<code_info>'
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4: 'co_code'
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5: "don't know how to disassemble %%s objects"
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%sNames:
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0: hasattr
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1: __func__
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2: __code__
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3: isinstance
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4: str
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5: _try_compile
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6: _format_code_info
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7: TypeError
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8: type
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9: __name__
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Names:
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0: _format_code_info
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1: _get_code_object
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Variable names:
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0: x""" % (('Formatted details of methods, functions, or code.', ' 6: None\n')
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if sys.flags.optimize < 2 else (None, ''))
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0: x""" % (('Formatted details of methods, functions, or code.',)
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if sys.flags.optimize < 2 else (None,))
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@staticmethod
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def tricky(x, y, z=True, *args, c, d, e=[], **kwds):
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@ -384,7 +373,7 @@ Free variables:
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code_info_expr_str = """\
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Name: <module>
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Filename: <code_info>
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Filename: <disassembly>
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Argument count: 0
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Kw-only arguments: 0
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Number of locals: 0
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@ -397,7 +386,7 @@ Names:
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code_info_simple_stmt_str = """\
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Name: <module>
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Filename: <code_info>
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Filename: <disassembly>
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Argument count: 0
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Kw-only arguments: 0
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Number of locals: 0
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@ -411,7 +400,7 @@ Names:
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code_info_compound_stmt_str = """\
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Name: <module>
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Filename: <code_info>
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Filename: <disassembly>
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Argument count: 0
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Kw-only arguments: 0
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Number of locals: 0
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@ -445,6 +434,9 @@ class CodeInfoTests(unittest.TestCase):
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with captured_stdout() as output:
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dis.show_code(x)
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self.assertRegex(output.getvalue(), expected+"\n")
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output = io.StringIO()
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dis.show_code(x, file=output)
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self.assertRegex(output.getvalue(), expected)
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def test_code_info_object(self):
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self.assertRaises(TypeError, dis.code_info, object())
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@ -453,8 +445,289 @@ class CodeInfoTests(unittest.TestCase):
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self.assertEqual(dis.pretty_flags(0), '0x0')
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# Fodder for instruction introspection tests
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# Editing any of these may require recalculating the expected output
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def outer(a=1, b=2):
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def f(c=3, d=4):
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def inner(e=5, f=6):
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print(a, b, c, d, e, f)
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print(a, b, c, d)
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return inner
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print(a, b, '', 1, [], {}, "Hello world!")
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return f
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def jumpy():
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# This won't actually run (but that's OK, we only disassemble it)
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for i in range(10):
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print(i)
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if i < 4:
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continue
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if i > 6:
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break
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else:
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print("I can haz else clause?")
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while i:
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print(i)
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i -= 1
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if i > 6:
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continue
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if i < 4:
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break
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else:
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print("Who let lolcatz into this test suite?")
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try:
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1 / 0
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except ZeroDivisionError:
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print("Here we go, here we go, here we go...")
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else:
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with i as dodgy:
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print("Never reach this")
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finally:
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print("OK, now we're done")
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# End fodder for opinfo generation tests
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expected_outer_offset = 1 - outer.__code__.co_firstlineno
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expected_jumpy_offset = 1 - jumpy.__code__.co_firstlineno
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code_object_f = outer.__code__.co_consts[3]
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code_object_inner = code_object_f.co_consts[3]
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# The following lines are useful to regenerate the expected results after
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# either the fodder is modified or the bytecode generation changes
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# After regeneration, update the references to code_object_f and
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# code_object_inner before rerunning the tests
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#_instructions = dis.get_instructions(outer, line_offset=expected_outer_offset)
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#print('expected_opinfo_outer = [\n ',
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#',\n '.join(map(str, _instructions)), ',\n]', sep='')
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#_instructions = dis.get_instructions(outer(), line_offset=expected_outer_offset)
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#print('expected_opinfo_f = [\n ',
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#',\n '.join(map(str, _instructions)), ',\n]', sep='')
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#_instructions = dis.get_instructions(outer()(), line_offset=expected_outer_offset)
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#print('expected_opinfo_inner = [\n ',
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#',\n '.join(map(str, _instructions)), ',\n]', sep='')
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#_instructions = dis.get_instructions(jumpy, line_offset=expected_jumpy_offset)
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#print('expected_opinfo_jumpy = [\n ',
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#',\n '.join(map(str, _instructions)), ',\n]', sep='')
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Instruction = dis.Instruction
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expected_opinfo_outer = [
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Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=3, argrepr='3', offset=0, starts_line=2, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=4, argrepr='4', offset=3, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=0, argval='a', argrepr='a', offset=6, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=1, argval='b', argrepr='b', offset=9, starts_line=None, is_jump_target=False),
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Instruction(opname='BUILD_TUPLE', opcode=102, arg=2, argval=2, argrepr='', offset=12, starts_line=None, is_jump_target=False),
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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),
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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),
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Instruction(opname='MAKE_CLOSURE', opcode=134, arg=2, argval=2, argrepr='', offset=21, starts_line=None, is_jump_target=False),
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Instruction(opname='STORE_FAST', opcode=125, arg=2, argval='f', argrepr='f', offset=24, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=27, starts_line=7, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='a', argrepr='a', offset=30, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='b', argrepr='b', offset=33, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=5, argval='', argrepr="''", offset=36, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=6, argval=1, argrepr='1', offset=39, starts_line=None, is_jump_target=False),
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Instruction(opname='BUILD_LIST', opcode=103, arg=0, argval=0, argrepr='', offset=42, starts_line=None, is_jump_target=False),
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Instruction(opname='BUILD_MAP', opcode=105, arg=0, argval=0, argrepr='', offset=45, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=7, argval='Hello world!', argrepr="'Hello world!'", offset=48, starts_line=None, is_jump_target=False),
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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),
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Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=54, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=2, argval='f', argrepr='f', offset=55, starts_line=8, is_jump_target=False),
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Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=58, starts_line=None, is_jump_target=False),
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]
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expected_opinfo_f = [
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Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=5, argrepr='5', offset=0, starts_line=3, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=6, argrepr='6', offset=3, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=2, argval='a', argrepr='a', offset=6, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=3, argval='b', argrepr='b', offset=9, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=0, argval='c', argrepr='c', offset=12, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CLOSURE', opcode=135, arg=1, argval='d', argrepr='d', offset=15, starts_line=None, is_jump_target=False),
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Instruction(opname='BUILD_TUPLE', opcode=102, arg=4, argval=4, argrepr='', offset=18, starts_line=None, is_jump_target=False),
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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),
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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),
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Instruction(opname='MAKE_CLOSURE', opcode=134, arg=2, argval=2, argrepr='', offset=27, starts_line=None, is_jump_target=False),
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Instruction(opname='STORE_FAST', opcode=125, arg=2, argval='inner', argrepr='inner', offset=30, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=33, starts_line=5, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=2, argval='a', argrepr='a', offset=36, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=3, argval='b', argrepr='b', offset=39, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='c', argrepr='c', offset=42, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='d', argrepr='d', offset=45, starts_line=None, is_jump_target=False),
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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),
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Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=51, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=2, argval='inner', argrepr='inner', offset=52, starts_line=6, is_jump_target=False),
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Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=55, starts_line=None, is_jump_target=False),
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]
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expected_opinfo_inner = [
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='print', argrepr='print', offset=0, starts_line=4, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=0, argval='a', argrepr='a', offset=3, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=1, argval='b', argrepr='b', offset=6, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=2, argval='c', argrepr='c', offset=9, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_DEREF', opcode=136, arg=3, argval='d', argrepr='d', offset=12, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='e', argrepr='e', offset=15, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=1, argval='f', argrepr='f', offset=18, starts_line=None, is_jump_target=False),
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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),
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Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=24, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=25, starts_line=None, is_jump_target=False),
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Instruction(opname='RETURN_VALUE', opcode=83, arg=None, argval=None, argrepr='', offset=28, starts_line=None, is_jump_target=False),
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]
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expected_opinfo_jumpy = [
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Instruction(opname='SETUP_LOOP', opcode=120, arg=74, argval=77, argrepr='to 77', offset=0, starts_line=3, is_jump_target=False),
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=0, argval='range', argrepr='range', offset=3, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=1, argval=10, argrepr='10', offset=6, starts_line=None, is_jump_target=False),
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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),
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Instruction(opname='GET_ITER', opcode=68, arg=None, argval=None, argrepr='', offset=12, starts_line=None, is_jump_target=False),
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Instruction(opname='FOR_ITER', opcode=93, arg=50, argval=66, argrepr='to 66', offset=13, starts_line=None, is_jump_target=True),
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Instruction(opname='STORE_FAST', opcode=125, arg=0, argval='i', argrepr='i', offset=16, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=19, starts_line=4, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=22, starts_line=None, is_jump_target=False),
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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),
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Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=28, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=29, starts_line=5, is_jump_target=False),
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Instruction(opname='LOAD_CONST', opcode=100, arg=2, argval=4, argrepr='4', offset=32, starts_line=None, is_jump_target=False),
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Instruction(opname='COMPARE_OP', opcode=107, arg=0, argval='<', argrepr='<', offset=35, starts_line=None, is_jump_target=False),
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Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=47, argval=47, argrepr='', offset=38, starts_line=None, is_jump_target=False),
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Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=41, starts_line=6, is_jump_target=False),
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Instruction(opname='JUMP_FORWARD', opcode=110, arg=0, argval=47, argrepr='to 47', offset=44, starts_line=None, is_jump_target=False),
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Instruction(opname='LOAD_FAST', opcode=124, arg=0, argval='i', argrepr='i', offset=47, starts_line=7, is_jump_target=True),
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Instruction(opname='LOAD_CONST', opcode=100, arg=3, argval=6, argrepr='6', offset=50, starts_line=None, is_jump_target=False),
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Instruction(opname='COMPARE_OP', opcode=107, arg=4, argval='>', argrepr='>', offset=53, starts_line=None, is_jump_target=False),
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Instruction(opname='POP_JUMP_IF_FALSE', opcode=114, arg=13, argval=13, argrepr='', offset=56, starts_line=None, is_jump_target=False),
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Instruction(opname='BREAK_LOOP', opcode=80, arg=None, argval=None, argrepr='', offset=59, starts_line=8, is_jump_target=False),
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Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=60, starts_line=None, is_jump_target=False),
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Instruction(opname='JUMP_ABSOLUTE', opcode=113, arg=13, argval=13, argrepr='', offset=63, starts_line=None, is_jump_target=False),
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Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=66, starts_line=None, is_jump_target=True),
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Instruction(opname='LOAD_GLOBAL', opcode=116, arg=1, argval='print', argrepr='print', offset=67, starts_line=10, is_jump_target=False),
|
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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),
|
||||
]
|
||||
|
||||
class InstructionTests(BytecodeTestCase):
|
||||
def test_outer(self):
|
||||
self.assertBytecodeExactlyMatches(outer, expected_opinfo_outer,
|
||||
line_offset=expected_outer_offset)
|
||||
|
||||
def test_nested(self):
|
||||
with captured_stdout():
|
||||
f = outer()
|
||||
self.assertBytecodeExactlyMatches(f, expected_opinfo_f,
|
||||
line_offset=expected_outer_offset)
|
||||
|
||||
def test_doubly_nested(self):
|
||||
with captured_stdout():
|
||||
inner = outer()()
|
||||
self.assertBytecodeExactlyMatches(inner, expected_opinfo_inner,
|
||||
line_offset=expected_outer_offset)
|
||||
|
||||
def test_jumpy(self):
|
||||
self.assertBytecodeExactlyMatches(jumpy, expected_opinfo_jumpy,
|
||||
line_offset=expected_jumpy_offset)
|
||||
|
||||
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__]:
|
||||
b = dis.Bytecode(obj)
|
||||
self.assertIsInstance(b.codeobj, types.CodeType)
|
||||
|
||||
self.assertRaises(TypeError, dis.Bytecode, object())
|
||||
|
||||
def test_iteration(self):
|
||||
b = dis.Bytecode(_f)
|
||||
for instr in b:
|
||||
self.assertIsInstance(instr, dis.Instruction)
|
||||
|
||||
assert len(list(b)) > 0 # Iterating should yield at least 1 instruction
|
||||
|
||||
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_display_code(self):
|
||||
b = dis.Bytecode(_f)
|
||||
output = io.StringIO()
|
||||
b.display_code(file=output)
|
||||
result = [line.rstrip() for line in output.getvalue().splitlines()]
|
||||
self.assertEqual(result, dis_f.splitlines())
|
||||
|
||||
|
||||
def test_main():
|
||||
run_unittest(DisTests, CodeInfoTests)
|
||||
run_unittest(DisTests, CodeInfoTests, InstructionTests, BytecodeTests)
|
||||
|
||||
if __name__ == "__main__":
|
||||
test_main()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue