PEP 614 support (#1717)

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QuentinSoubeyran 2020-09-19 20:33:10 +02:00 committed by GitHub
parent 811decd7f1
commit 6dddbd7241
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8 changed files with 528 additions and 115 deletions

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@ -17,6 +17,8 @@
- Prevent coloured diff output being interleaved with multiple files (#1673)
- Added support for PEP 614 relaxed decorator syntax on python 3.9 (#1711)
### 20.8b1
#### _Packaging_

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@ -29,7 +29,7 @@ mypy_extensions = ">=0.4.3"
pathspec = ">=0.6"
regex = ">=2020.1.8"
toml = ">=0.10.1"
typed-ast = "==1.4.0"
typed-ast = "==1.4.1"
typing_extensions = ">=3.7.4"
black = {editable = true,extras = ["d"],path = "."}
dataclasses = {"python_version <" = "3.7","version >" = "0.6"}

293
Pipfile.lock generated
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@ -1,7 +1,7 @@
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"requires": {},
@ -58,11 +58,11 @@
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@ -186,39 +186,40 @@
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@ -305,11 +306,11 @@
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"sha256:180c9f855a8ea280e72a5d61cf05681b230c2dce804c48e9b2983f491ecc44ed",
"sha256:247df238bc05c7d2e934a761243bfdc67db03f339948b1e2e80c75d41fc7cc36",
"sha256:26409a473cc6278e4c90f782cd5968ebad04d3911ed1c402fc86908c17633e08",
"sha256:2a27615c965173c4c88f2961cf18115c08fedfb8bdc121347f26e8458dc6d237",
"sha256:2e26223ac636ca216e855748e7d435a1bf846809ed12ed898179587d0cf74618",
"sha256:321761d55fb7cb256b771ee4ed78e69486a7336be9143b90c52be59d7657f50f",
"sha256:4005b38cd86fc51c955db40b0f0e52ff65340874495af72efabb1bb8ca881695",
"sha256:4b9e96543d0784acebb70991ebc2dbd99aa287f6217546bb993df22dd361d41c",
"sha256:548b0818e88792318dc137d8b1ec82a0ab0af96c7f0603a00bb94f896fbf5e10",
"sha256:725875681afe50b41aee7fdd629cedbc4720bab350142b12c55c0a4d17c7416c",
"sha256:7a63e97355f3cd77c94bd98c59cb85fe0efd76ea7ef904c9b0316b5bbfde6ed1",
"sha256:94191501e4b4009642be21dde2a78bd3c2701a81ee57d3d3d02f1d99f8b64a9e",
"sha256:969ae512a250f869c1738ca63be843488ff5cc031987d302c1f59c7dbe1b225f",
"sha256:9f734423eb9c2ea85000aa2476e0d7a58e021bc34f0a373ac52a5454cd52f791",
"sha256:b45ab1c6ece7c471f01c56f5d19818ca797c34541f0b2351635a5c9fe09ac2e0",
"sha256:cc6096c86ec0de26e2263c228fb25ee01c3ff1346d3cfc219d67d49f303585af",
"sha256:dc3f437ca6353979aace181f1b790f0fc79e446235b14306241633ab7d61b8f8",
"sha256:e7563eb7bc5c7e75a213281715155248cceba88b11cb4b22957ad45b85903761",
"sha256:e7dad66a9e5684a40f270bd4aee1906878193ae50a4831922e454a2a457f1716",
"sha256:eb80a288e3cfc08f679f95da72d2ef90cb74f6d8a8ba69d2f215c5e110b2ca32",
"sha256:fa7fbcc40e2210aca26c7ac8a39467eae444d90a2c346cbcffd9133a166bcc67"
],
"markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
"version": "==3.1"
},
"distlib": {
"hashes": [
@ -468,11 +530,11 @@
},
"identify": {
"hashes": [
"sha256:9f5fcf22b665eaece583bd395b103c2769772a0f646ffabb5b1f155901b07de2",
"sha256:b1aa2e05863dc80242610d46a7b49105e2eafe00ef0c8ff311c1828680760c76"
"sha256:c770074ae1f19e08aadbda1c886bc6d0cb55ffdc503a8c0fe8699af2fc9664ae",
"sha256:d02d004568c5a01261839a05e91705e3e9f5c57a3551648f9b3fb2b9c62c0f62"
],
"markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
"version": "==1.4.29"
"version": "==1.5.3"
},
"idna": {
"hashes": [
@ -490,6 +552,14 @@
"markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
"version": "==1.2.0"
},
"jeepney": {
"hashes": [
"sha256:3479b861cc2b6407de5188695fa1a8d57e5072d7059322469b62628869b8e36e",
"sha256:d6c6b49683446d2407d2fe3acb7a368a77ff063f9182fe427da15d622adc24cf"
],
"markers": "sys_platform == 'linux'",
"version": "==0.4.3"
},
"jinja2": {
"hashes": [
"sha256:89aab215427ef59c34ad58735269eb58b1a5808103067f7bb9d5836c651b3bb0",
@ -500,11 +570,11 @@
},
"keyring": {
"hashes": [
"sha256:182f94fc0381546489e3e4d90384a8c1d43cc09ffe2eb4a826e7312df6e1be7c",
"sha256:cd4d486803d55bdb13e2d453eb61dbbc984773e4f2b98a455aa85b1f4bc421e4"
"sha256:4e34ea2fdec90c1c43d6610b5a5fafa1b9097db1802948e90caf5763974b8f8d",
"sha256:9aeadd006a852b78f4b4ef7c7556c2774d2432bbef8ee538a3e9089ac8b11466"
],
"markers": "python_version >= '3.6'",
"version": "==21.3.1"
"version": "==21.4.0"
},
"markupsafe": {
"hashes": [
@ -649,6 +719,14 @@
"markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
"version": "==2.6.0"
},
"pycparser": {
"hashes": [
"sha256:2d475327684562c3a96cc71adf7dc8c4f0565175cf86b6d7a404ff4c771f15f0",
"sha256:7582ad22678f0fcd81102833f60ef8d0e57288b6b5fb00323d101be910e35705"
],
"markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
"version": "==2.20"
},
"pyflakes": {
"hashes": [
"sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92",
@ -659,11 +737,11 @@
},
"pygments": {
"hashes": [
"sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
"sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
"sha256:307543fe65c0947b126e83dd5a61bd8acbd84abec11f43caebaf5534cbc17998",
"sha256:926c3f319eda178d1bd90851e4317e6d8cdb5e292a3386aac9bd75eca29cf9c7"
],
"markers": "python_version >= '3.5'",
"version": "==2.6.1"
"version": "==2.7.1"
},
"pyparsing": {
"hashes": [
@ -761,6 +839,14 @@
],
"version": "==1.4.0"
},
"secretstorage": {
"hashes": [
"sha256:15da8a989b65498e29be338b3b279965f1b8f09b9668bd8010da183024c8bff6",
"sha256:b5ec909dde94d4ae2fa26af7c089036997030f0cf0a5cb372b4cccabd81c143b"
],
"markers": "sys_platform == 'linux'",
"version": "==3.1.2"
},
"setuptools-scm": {
"hashes": [
"sha256:09c659d1d6680811c43f476a33c6d3d9872416580786e96bd29ea03e6a818e41",
@ -848,21 +934,21 @@
},
"toml": {
"hashes": [
"sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c",
"sha256:235682dd292d5899d361a811df37e04a8828a5b1da3115886b73cf81ebc9100e",
"sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88",
"sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f",
"sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"
"sha256:229f81c57791a41d65e399fc06bf0848bab550a9dfd5ed66df18ce5f05e73d5c"
],
"index": "pypi",
"version": "==0.10.1"
},
"tqdm": {
"hashes": [
"sha256:1a336d2b829be50e46b84668691e0a2719f26c97c62846298dd5ae2937e4d5cf",
"sha256:564d632ea2b9cb52979f7956e093e831c28d441c11751682f84c86fc46e4fd21"
"sha256:8f3c5815e3b5e20bc40463fa6b42a352178859692a68ffaa469706e6d38342a5",
"sha256:faf9c671bd3fad5ebaeee366949d969dca2b2be32c872a7092a1e1a9048d105b"
],
"markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
"version": "==4.48.2"
"version": "==4.49.0"
},
"twine": {
"hashes": [
@ -874,29 +960,30 @@
},
"typed-ast": {
"hashes": [
"sha256:1170afa46a3799e18b4c977777ce137bb53c7485379d9706af8a59f2ea1aa161",
"sha256:18511a0b3e7922276346bcb47e2ef9f38fb90fd31cb9223eed42c85d1312344e",
"sha256:262c247a82d005e43b5b7f69aff746370538e176131c32dda9cb0f324d27141e",
"sha256:2b907eb046d049bcd9892e3076c7a6456c93a25bebfe554e931620c90e6a25b0",
"sha256:354c16e5babd09f5cb0ee000d54cfa38401d8b8891eefa878ac772f827181a3c",
"sha256:48e5b1e71f25cfdef98b013263a88d7145879fbb2d5185f2a0c79fa7ebbeae47",
"sha256:4e0b70c6fc4d010f8107726af5fd37921b666f5b31d9331f0bd24ad9a088e631",
"sha256:630968c5cdee51a11c05a30453f8cd65e0cc1d2ad0d9192819df9978984529f4",
"sha256:66480f95b8167c9c5c5c87f32cf437d585937970f3fc24386f313a4c97b44e34",
"sha256:71211d26ffd12d63a83e079ff258ac9d56a1376a25bc80b1cdcdf601b855b90b",
"sha256:7954560051331d003b4e2b3eb822d9dd2e376fa4f6d98fee32f452f52dd6ebb2",
"sha256:838997f4310012cf2e1ad3803bce2f3402e9ffb71ded61b5ee22617b3a7f6b6e",
"sha256:95bd11af7eafc16e829af2d3df510cecfd4387f6453355188342c3e79a2ec87a",
"sha256:bc6c7d3fa1325a0c6613512a093bc2a2a15aeec350451cbdf9e1d4bffe3e3233",
"sha256:cc34a6f5b426748a507dd5d1de4c1978f2eb5626d51326e43280941206c209e1",
"sha256:d755f03c1e4a51e9b24d899561fec4ccaf51f210d52abdf8c07ee2849b212a36",
"sha256:d7c45933b1bdfaf9f36c579671fec15d25b06c8398f113dab64c18ed1adda01d",
"sha256:d896919306dd0aa22d0132f62a1b78d11aaf4c9fc5b3410d3c666b818191630a",
"sha256:fdc1c9bbf79510b76408840e009ed65958feba92a88833cdceecff93ae8fff66",
"sha256:ffde2fbfad571af120fcbfbbc61c72469e72f550d676c3342492a9dfdefb8f12"
"sha256:0666aa36131496aed8f7be0410ff974562ab7eeac11ef351def9ea6fa28f6355",
"sha256:0c2c07682d61a629b68433afb159376e24e5b2fd4641d35424e462169c0a7919",
"sha256:249862707802d40f7f29f6e1aad8d84b5aa9e44552d2cc17384b209f091276aa",
"sha256:24995c843eb0ad11a4527b026b4dde3da70e1f2d8806c99b7b4a7cf491612652",
"sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75",
"sha256:4083861b0aa07990b619bd7ddc365eb7fa4b817e99cf5f8d9cf21a42780f6e01",
"sha256:498b0f36cc7054c1fead3d7fc59d2150f4d5c6c56ba7fb150c013fbc683a8d2d",
"sha256:4e3e5da80ccbebfff202a67bf900d081906c358ccc3d5e3c8aea42fdfdfd51c1",
"sha256:6daac9731f172c2a22ade6ed0c00197ee7cc1221aa84cfdf9c31defeb059a907",
"sha256:715ff2f2df46121071622063fc7543d9b1fd19ebfc4f5c8895af64a77a8c852c",
"sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3",
"sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b",
"sha256:8ce678dbaf790dbdb3eba24056d5364fb45944f33553dd5869b7580cdbb83614",
"sha256:aaee9905aee35ba5905cfb3c62f3e83b3bec7b39413f0a7f19be4e547ea01ebb",
"sha256:bcd3b13b56ea479b3650b82cabd6b5343a625b0ced5429e4ccad28a8973f301b",
"sha256:c9e348e02e4d2b4a8b2eedb48210430658df6951fa484e59de33ff773fbd4b41",
"sha256:d205b1b46085271b4e15f670058ce182bd1199e56b317bf2ec004b6a44f911f6",
"sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34",
"sha256:d5d33e9e7af3b34a40dc05f498939f0ebf187f07c385fd58d591c533ad8562fe",
"sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4",
"sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7"
],
"index": "pypi",
"version": "==1.4.0"
"version": "==1.4.1"
},
"typing-extensions": {
"hashes": [

View File

@ -178,14 +178,12 @@ class TargetVersion(Enum):
PY36 = 6
PY37 = 7
PY38 = 8
PY39 = 9
def is_python2(self) -> bool:
return self is TargetVersion.PY27
PY36_VERSIONS = {TargetVersion.PY36, TargetVersion.PY37, TargetVersion.PY38}
class Feature(Enum):
# All string literals are unicode
UNICODE_LITERALS = 1
@ -199,6 +197,7 @@ class Feature(Enum):
ASYNC_KEYWORDS = 7
ASSIGNMENT_EXPRESSIONS = 8
POS_ONLY_ARGUMENTS = 9
RELAXED_DECORATORS = 10
FORCE_OPTIONAL_PARENTHESES = 50
@ -237,6 +236,17 @@ class Feature(Enum):
Feature.ASSIGNMENT_EXPRESSIONS,
Feature.POS_ONLY_ARGUMENTS,
},
TargetVersion.PY39: {
Feature.UNICODE_LITERALS,
Feature.F_STRINGS,
Feature.NUMERIC_UNDERSCORES,
Feature.TRAILING_COMMA_IN_CALL,
Feature.TRAILING_COMMA_IN_DEF,
Feature.ASYNC_KEYWORDS,
Feature.ASSIGNMENT_EXPRESSIONS,
Feature.RELAXED_DECORATORS,
Feature.POS_ONLY_ARGUMENTS,
},
}
@ -2184,6 +2194,9 @@ def whitespace(leaf: Leaf, *, complex_subscript: bool) -> str: # noqa: C901
):
# Python 2 print chevron
return NO
elif prevp.type == token.AT and p.parent and p.parent.type == syms.decorator:
# no space in decorators
return NO
elif prev.type in OPENING_BRACKETS:
return NO
@ -5499,6 +5512,49 @@ def is_walrus_assignment(node: LN) -> bool:
return inner is not None and inner.type == syms.namedexpr_test
def is_simple_decorator_trailer(node: LN, last: bool = False) -> bool:
"""Return True iff `node` is a trailer valid in a simple decorator"""
return node.type == syms.trailer and (
(
len(node.children) == 2
and node.children[0].type == token.DOT
and node.children[1].type == token.NAME
)
# last trailer can be arguments
or (
last
and len(node.children) == 3
and node.children[0].type == token.LPAR
# and node.children[1].type == syms.argument
and node.children[2].type == token.RPAR
)
)
def is_simple_decorator_expression(node: LN) -> bool:
"""Return True iff `node` could be a 'dotted name' decorator
This function takes the node of the 'namedexpr_test' of the new decorator
grammar and test if it would be valid under the old decorator grammar.
The old grammar was: decorator: @ dotted_name [arguments] NEWLINE
The new grammar is : decorator: @ namedexpr_test NEWLINE
"""
if node.type == token.NAME:
return True
if node.type == syms.power:
if node.children:
return (
node.children[0].type == token.NAME
and all(map(is_simple_decorator_trailer, node.children[1:-1]))
and (
len(node.children) < 2
or is_simple_decorator_trailer(node.children[-1], last=True)
)
)
return False
def is_yield(node: LN) -> bool:
"""Return True if `node` holds a `yield` or `yield from` expression."""
if node.type == syms.yield_expr:
@ -5684,6 +5740,8 @@ def get_features_used(node: Node) -> Set[Feature]:
- underscores in numeric literals;
- trailing commas after * or ** in function signatures and calls;
- positional only arguments in function signatures and lambdas;
- assignment expression;
- relaxed decorator syntax;
"""
features: Set[Feature] = set()
for n in node.pre_order():
@ -5703,6 +5761,12 @@ def get_features_used(node: Node) -> Set[Feature]:
elif n.type == token.COLONEQUAL:
features.add(Feature.ASSIGNMENT_EXPRESSIONS)
elif n.type == syms.decorator:
if len(n.children) > 1 and not is_simple_decorator_expression(
n.children[1]
):
features.add(Feature.RELAXED_DECORATORS)
elif (
n.type in {syms.typedargslist, syms.arglist}
and n.children

View File

@ -12,7 +12,7 @@ file_input: (NEWLINE | stmt)* ENDMARKER
single_input: NEWLINE | simple_stmt | compound_stmt NEWLINE
eval_input: testlist NEWLINE* ENDMARKER
decorator: '@' dotted_name [ '(' [arglist] ')' ] NEWLINE
decorator: '@' namedexpr_test NEWLINE
decorators: decorator+
decorated: decorators (classdef | funcdef | async_funcdef)
async_funcdef: ASYNC funcdef

176
tests/data/decorators.py Normal file
View File

@ -0,0 +1,176 @@
# This file doesn't use the standard decomposition.
# Decorator syntax test cases are separated by double # comments.
# Those before the 'output' comment are valid under the old syntax.
# Those after the 'ouput' comment require PEP614 relaxed syntax.
# Do not remove the double # separator before the first test case, it allows
# the comment before the test case to be ignored.
##
@decorator
def f():
...
##
@decorator(arg)
def f():
...
##
@decorator(kwarg=0)
def f():
...
##
@decorator(*args)
def f():
...
##
@decorator(**kwargs)
def f():
...
##
@decorator(*args, **kwargs)
def f():
...
##
@decorator(*args, **kwargs,)
def f():
...
##
@dotted.decorator
def f():
...
##
@dotted.decorator(arg)
def f():
...
##
@dotted.decorator(kwarg=0)
def f():
...
##
@dotted.decorator(*args)
def f():
...
##
@dotted.decorator(**kwargs)
def f():
...
##
@dotted.decorator(*args, **kwargs)
def f():
...
##
@dotted.decorator(*args, **kwargs,)
def f():
...
##
@double.dotted.decorator
def f():
...
##
@double.dotted.decorator(arg)
def f():
...
##
@double.dotted.decorator(kwarg=0)
def f():
...
##
@double.dotted.decorator(*args)
def f():
...
##
@double.dotted.decorator(**kwargs)
def f():
...
##
@double.dotted.decorator(*args, **kwargs)
def f():
...
##
@double.dotted.decorator(*args, **kwargs,)
def f():
...
##
@_(sequence["decorator"])
def f():
...
##
@eval("sequence['decorator']")
def f():
...
# output
##
@decorator()()
def f():
...
##
@(decorator)
def f():
...
##
@sequence["decorator"]
def f():
...
##
@decorator[List[str]]
def f():
...
##
@var := decorator
def f():
...

37
tests/data/python39.py Normal file
View File

@ -0,0 +1,37 @@
#!/usr/bin/env python3.9
@relaxed_decorator[0]
def f():
...
@relaxed_decorator[extremely_long_name_that_definitely_will_not_fit_on_one_line_of_standard_length]
def f():
...
@extremely_long_variable_name_that_doesnt_fit := complex.expression(with_long="arguments_value_that_wont_fit_at_the_end_of_the_line")
def f():
...
# output
#!/usr/bin/env python3.9
@relaxed_decorator[0]
def f():
...
@relaxed_decorator[
extremely_long_name_that_definitely_will_not_fit_on_one_line_of_standard_length
]
def f():
...
@extremely_long_variable_name_that_doesnt_fit := complex.expression(
with_long="arguments_value_that_wont_fit_at_the_end_of_the_line"
)
def f():
...

View File

@ -59,9 +59,13 @@
PROJECT_ROOT = THIS_DIR.parent
DETERMINISTIC_HEADER = "[Deterministic header]"
EMPTY_LINE = "# EMPTY LINE WITH WHITESPACE" + " (this comment will be removed)"
PY36_ARGS = [
f"--target-version={version.name.lower()}" for version in black.PY36_VERSIONS
]
PY36_VERSIONS = {
TargetVersion.PY36,
TargetVersion.PY37,
TargetVersion.PY38,
TargetVersion.PY39,
}
PY36_ARGS = [f"--target-version={version.name.lower()}" for version in PY36_VERSIONS]
T = TypeVar("T")
R = TypeVar("R")
@ -705,7 +709,7 @@ def test_string_prefixes(self) -> None:
@patch("black.dump_to_file", dump_to_stderr)
def test_numeric_literals(self) -> None:
source, expected = read_data("numeric_literals")
mode = replace(DEFAULT_MODE, target_versions=black.PY36_VERSIONS)
mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
black.assert_equivalent(source, actual)
@ -714,7 +718,7 @@ def test_numeric_literals(self) -> None:
@patch("black.dump_to_file", dump_to_stderr)
def test_numeric_literals_ignoring_underscores(self) -> None:
source, expected = read_data("numeric_literals_skip_underscores")
mode = replace(DEFAULT_MODE, target_versions=black.PY36_VERSIONS)
mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
actual = fs(source, mode=mode)
self.assertFormatEqual(expected, actual)
black.assert_equivalent(source, actual)
@ -800,6 +804,16 @@ def test_python38(self) -> None:
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, DEFAULT_MODE)
@patch("black.dump_to_file", dump_to_stderr)
def test_python39(self) -> None:
source, expected = read_data("python39")
actual = fs(source)
self.assertFormatEqual(expected, actual)
major, minor = sys.version_info[:2]
if major > 3 or (major == 3 and minor >= 9):
black.assert_equivalent(source, actual)
black.assert_stable(source, actual, DEFAULT_MODE)
@patch("black.dump_to_file", dump_to_stderr)
def test_fmtonoff(self) -> None:
source, expected = read_data("fmtonoff")
@ -1212,6 +1226,39 @@ def test_lib2to3_parse(self) -> None:
black.lib2to3_parse(py3_only, {TargetVersion.PY36})
black.lib2to3_parse(py3_only, {TargetVersion.PY27, TargetVersion.PY36})
def test_get_features_used_decorator(self) -> None:
# Test the feature detection of new decorator syntax
# since this makes some test cases of test_get_features_used()
# fails if it fails, this is tested first so that a useful case
# is identified
simples, relaxed = read_data("decorators")
# skip explanation comments at the top of the file
for simple_test in simples.split("##")[1:]:
node = black.lib2to3_parse(simple_test)
decorator = str(node.children[0].children[0]).strip()
self.assertNotIn(
Feature.RELAXED_DECORATORS,
black.get_features_used(node),
msg=(
f"decorator '{decorator}' follows python<=3.8 syntax"
"but is detected as 3.9+"
# f"The full node is\n{node!r}"
),
)
# skip the '# output' comment at the top of the output part
for relaxed_test in relaxed.split("##")[1:]:
node = black.lib2to3_parse(relaxed_test)
decorator = str(node.children[0].children[0]).strip()
self.assertIn(
Feature.RELAXED_DECORATORS,
black.get_features_used(node),
msg=(
f"decorator '{decorator}' uses python3.9+ syntax"
"but is detected as python<=3.8"
# f"The full node is\n{node!r}"
),
)
def test_get_features_used(self) -> None:
node = black.lib2to3_parse("def f(*, arg): ...\n")
self.assertEqual(black.get_features_used(node), set())
@ -1628,7 +1675,7 @@ def test_pipe_force_pyi(self) -> None:
def test_single_file_force_py36(self) -> None:
reg_mode = DEFAULT_MODE
py36_mode = replace(DEFAULT_MODE, target_versions=black.PY36_VERSIONS)
py36_mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
source, expected = read_data("force_py36")
with cache_dir() as workspace:
path = (workspace / "file.py").resolve()
@ -1647,7 +1694,7 @@ def test_single_file_force_py36(self) -> None:
@event_loop()
def test_multi_file_force_py36(self) -> None:
reg_mode = DEFAULT_MODE
py36_mode = replace(DEFAULT_MODE, target_versions=black.PY36_VERSIONS)
py36_mode = replace(DEFAULT_MODE, target_versions=PY36_VERSIONS)
source, expected = read_data("force_py36")
with cache_dir() as workspace:
paths = [