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remove deprecated deparse_code

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rocky
2019-06-16 21:57:56 -04:00
parent 4b82806d6c
commit d369017122
4 changed files with 71 additions and 93 deletions
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132
pytest/test_fstring.py
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@@ -1,9 +1,12 @@
# std
# test
from uncompyle6 import PYTHON_VERSION, deparse_code
import sys
from uncompyle6 import PYTHON_VERSION, code_deparse
import pytest
pytestmark = pytest.mark.skipif(PYTHON_VERSION <= 2.6,
reason='hypothesis needs 2.7 or later')
pytestmark = pytest.mark.skipif(
PYTHON_VERSION <= 2.6, reason="hypothesis needs 2.7 or later"
)
if PYTHON_VERSION > 2.6:
import hypothesis
@@ -11,29 +14,31 @@ if PYTHON_VERSION > 2.6:
# uncompyle6
@st.composite
def expressions(draw):
# todo : would be nice to generate expressions using hypothesis however
# this is pretty involved so for now just use a corpus of expressions
# from which to select.
return draw(st.sampled_from((
'abc',
'len(items)',
'x + 1',
'lineno',
'container',
'self.attribute',
'self.method()',
# These expressions are failing, I think these are control
# flow problems rather than problems with FORMAT_VALUE,
# however I need to confirm this...
#'sorted(items, key=lambda x: x.name)',
#'func(*args, **kwargs)',
#'text or default',
#'43 if life_the_universe and everything else None'
)))
return draw(
st.sampled_from(
(
"abc",
"len(items)",
"x + 1",
"lineno",
"container",
"self.attribute",
"self.method()",
# These expressions are failing, I think these are control
# flow problems rather than problems with FORMAT_VALUE,
# however I need to confirm this...
#'sorted(items, key=lambda x: x.name)',
#'func(*args, **kwargs)',
#'text or default',
#'43 if life_the_universe and everything else None'
)
)
)
@st.composite
def format_specifiers(draw):
@@ -54,36 +59,37 @@ if PYTHON_VERSION > 2.6:
:return: An example format_specifier.
"""
alphabet_strategy = st.characters(min_codepoint=ord('a'), max_codepoint=ord('z'))
alphabet_strategy = st.characters(
min_codepoint=ord("a"), max_codepoint=ord("z")
)
fill = draw(st.one_of(alphabet_strategy, st.none()))
align = draw(st.sampled_from(list('<>=^')))
fill_align = (fill + align or '') if fill else ''
align = draw(st.sampled_from(list("<>=^")))
fill_align = (fill + align or "") if fill else ""
type_ = draw(st.sampled_from('bcdeEfFgGnosxX%'))
can_have_sign = type_ in 'deEfFgGnoxX%'
can_have_comma = type_ in 'deEfFgG%'
can_have_precision = type_ in 'fFgG'
can_have_pound = type_ in 'boxX%'
can_have_zero = type_ in 'oxX'
type_ = draw(st.sampled_from("bcdeEfFgGnosxX%"))
can_have_sign = type_ in "deEfFgGnoxX%"
can_have_comma = type_ in "deEfFgG%"
can_have_precision = type_ in "fFgG"
can_have_pound = type_ in "boxX%"
can_have_zero = type_ in "oxX"
sign = draw(st.sampled_from(list('+- ') + [''])) if can_have_sign else ''
pound = draw(st.sampled_from(('#', '',))) if can_have_pound else ''
zero = draw(st.sampled_from(('0', '',))) if can_have_zero else ''
sign = draw(st.sampled_from(list("+- ") + [""])) if can_have_sign else ""
pound = draw(st.sampled_from(("#", ""))) if can_have_pound else ""
zero = draw(st.sampled_from(("0", ""))) if can_have_zero else ""
int_strategy = st.integers(min_value=1, max_value=1000)
width = draw(st.one_of(int_strategy, st.none()))
width = str(width) if width is not None else ''
width = str(width) if width is not None else ""
comma = draw(st.sampled_from((',', '',))) if can_have_comma else ''
comma = draw(st.sampled_from((",", ""))) if can_have_comma else ""
if can_have_precision:
precision = draw(st.one_of(int_strategy, st.none()))
precision = '.' + str(precision) if precision else ''
precision = "." + str(precision) if precision else ""
else:
precision = ''
return ''.join((fill_align, sign, pound, zero, width, comma, precision, type_,))
precision = ""
return "".join((fill_align, sign, pound, zero, width, comma, precision, type_))
@st.composite
def fstrings(draw):
@@ -96,9 +102,7 @@ if PYTHON_VERSION > 2.6:
:return: A valid f-string.
"""
character_strategy = st.characters(
blacklist_characters='\r\n\'\\s{}',
min_codepoint=1,
max_codepoint=1000,
blacklist_characters="\r\n'\\s{}", min_codepoint=1, max_codepoint=1000
)
is_raw = draw(st.booleans())
integer_strategy = st.integers(min_value=0, max_value=3)
@@ -106,53 +110,49 @@ if PYTHON_VERSION > 2.6:
content = []
for _ in range(expression_count):
expression = draw(expressions())
conversion = draw(st.sampled_from(('', '!s', '!r', '!a',)))
conversion = draw(st.sampled_from(("", "!s", "!r", "!a")))
has_specifier = draw(st.booleans())
specifier = ':' + draw(format_specifiers()) if has_specifier else ''
content.append('{{{}{}}}'.format(expression, conversion, specifier))
specifier = ":" + draw(format_specifiers()) if has_specifier else ""
content.append("{{{}{}}}".format(expression, conversion, specifier))
content.append(draw(st.text(character_strategy)))
content = ''.join(content)
return "f{}'{}'".format('r' if is_raw else '', content)
content = "".join(content)
return "f{}'{}'".format("r" if is_raw else "", content)
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason='need Python 3.6')
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason="need Python 3.6")
@hypothesis.given(format_specifiers())
def test_format_specifiers(format_specifier):
"""Verify that format_specifiers generates valid specifiers"""
try:
exec('"{:' + format_specifier + '}".format(0)')
except ValueError as e:
if 'Unknown format code' not in str(e):
if "Unknown format code" not in str(e):
raise
def run_test(text):
hypothesis.assume(len(text))
hypothesis.assume("f'{" in text)
expr = text + '\n'
code = compile(expr, '<string>', 'single')
deparsed = deparse_code(PYTHON_VERSION, code, compile_mode='single')
recompiled = compile(deparsed.text, '<string>', 'single')
expr = text + "\n"
code = compile(expr, "<string>", "single")
deparsed = code_deparse(code, sys.stdout, PYTHON_VERSION, compile_mode="single")
recompiled = compile(deparsed.text, "<string>", "single")
if recompiled != code:
print(recompiled)
print('================')
print("================")
print(code)
print('----------------')
assert 'dis(' + deparsed.text.strip('\n') + ')' == 'dis(' + expr.strip('\n') + ')'
print("----------------")
assert (
"dis(" + deparsed.text.strip("\n") + ")"
== "dis(" + expr.strip("\n") + ")"
)
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason='need Python 3.6')
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason="need Python 3.6")
@hypothesis.given(fstrings())
def test_uncompyle_fstring(fstring):
"""Verify uncompyling fstring bytecode"""
run_test(fstring)
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason='need Python 3.6+')
@pytest.mark.parametrize('fstring', [
"f'{abc}{abc!s}'",
"f'{abc}0'",
])
@pytest.mark.skipif(PYTHON_VERSION != 3.6, reason="need Python 3.6+")
@pytest.mark.parametrize("fstring", ["f'{abc}{abc!s}'", "f'{abc}0'"])
def test_uncompyle_direct(fstring):
"""useful for debugging"""
run_test(fstring)