Document shebang comment behaviour (#3787)

[etc/vim.git] / src / black / mode.py

diff --git a/src/black/mode.py b/src/black/mode.py
index 6c0847e8bccc50f9305c2c12083d616a45d4434a..4d979afd84de332135ac0052c494e9be842e8352 100644 (file)
--- a/src/black/mode.py
+++ b/src/black/mode.py
@@ -4,19 +4,13 @@ Mostly around Python language feature support per version and Black configuratio
 chosen by the user.
 """
 
-import sys
 from dataclasses import dataclass, field
 from enum import Enum, auto
 from hashlib import sha256
 from operator import attrgetter
-from typing import Dict, Set
+from typing import Dict, Final, Set
 from warnings import warn
 
-if sys.version_info < (3, 8):
-    from typing_extensions import Final
-else:
-    from typing import Final
-
 from black.const import DEFAULT_LINE_LENGTH
 
 
@@ -30,6 +24,7 @@ class TargetVersion(Enum):
     PY39 = 9
     PY310 = 10
     PY311 = 11
+    PY312 = 12
 
 
 class Feature(Enum):
@@ -50,6 +45,8 @@ class Feature(Enum):
     EXCEPT_STAR = 14
     VARIADIC_GENERICS = 15
     DEBUG_F_STRINGS = 16
+    PARENTHESIZED_CONTEXT_MANAGERS = 17
+    TYPE_PARAMS = 18
     FORCE_OPTIONAL_PARENTHESES = 50
 
     # __future__ flags
@@ -106,6 +103,7 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
     },
     TargetVersion.PY310: {
         Feature.F_STRINGS,
@@ -120,6 +118,7 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
         Feature.PATTERN_MATCHING,
     },
     TargetVersion.PY311: {
@@ -135,9 +134,29 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
+        Feature.PATTERN_MATCHING,
+        Feature.EXCEPT_STAR,
+        Feature.VARIADIC_GENERICS,
+    },
+    TargetVersion.PY312: {
+        Feature.F_STRINGS,
+        Feature.DEBUG_F_STRINGS,
+        Feature.NUMERIC_UNDERSCORES,
+        Feature.TRAILING_COMMA_IN_CALL,
+        Feature.TRAILING_COMMA_IN_DEF,
+        Feature.ASYNC_KEYWORDS,
+        Feature.FUTURE_ANNOTATIONS,
+        Feature.ASSIGNMENT_EXPRESSIONS,
+        Feature.RELAXED_DECORATORS,
+        Feature.POS_ONLY_ARGUMENTS,
+        Feature.UNPACKING_ON_FLOW,
+        Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
         Feature.PATTERN_MATCHING,
         Feature.EXCEPT_STAR,
         Feature.VARIADIC_GENERICS,
+        Feature.TYPE_PARAMS,
     },
 }
 
@@ -149,14 +168,20 @@ def supports_feature(target_versions: Set[TargetVersion], feature: Feature) -> b
 class Preview(Enum):
     """Individual preview style features."""
 
-    annotation_parens = auto()
-    long_docstring_quotes_on_newline = auto()
-    normalize_docstring_quotes_and_prefixes_properly = auto()
-    one_element_subscript = auto()
-    remove_block_trailing_newline = auto()
-    remove_redundant_parens = auto()
+    add_trailing_comma_consistently = auto()
+    blank_line_after_nested_stub_class = auto()
+    hex_codes_in_unicode_sequences = auto()
+    improved_async_statements_handling = auto()
+    multiline_string_handling = auto()
+    no_blank_line_before_class_docstring = auto()
+    prefer_splitting_right_hand_side_of_assignments = auto()
+    # NOTE: string_processing requires wrap_long_dict_values_in_parens
+    # for https://github.com/psf/black/issues/3117 to be fixed.
     string_processing = auto()
+    parenthesize_conditional_expressions = auto()
     skip_magic_trailing_comma_in_subscript = auto()
+    wrap_long_dict_values_in_parens = auto()
+    wrap_multiple_context_managers_in_parens = auto()
 
 
 class Deprecated(UserWarning):
@@ -170,6 +195,7 @@ class Mode:
     string_normalization: bool = True
     is_pyi: bool = False
     is_ipynb: bool = False
+    skip_source_first_line: bool = False
     magic_trailing_comma: bool = True
     experimental_string_processing: bool = False
     python_cell_magics: Set[str] = field(default_factory=set)
@@ -208,6 +234,7 @@ class Mode:
             str(int(self.string_normalization)),
             str(int(self.is_pyi)),
             str(int(self.is_ipynb)),
+            str(int(self.skip_source_first_line)),
             str(int(self.magic_trailing_comma)),
             str(int(self.experimental_string_processing)),
             str(int(self.preview)),