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Fix removed comments in stub files (#3745)
[etc/vim.git] / src / black / mode.py
diff --git a/src/black/mode.py b/src/black/mode.py
index 5e04525cfc989a5619255e4119581c7c263761d0..4d979afd84de332135ac0052c494e9be842e8352 100644 (file)
--- a/src/black/mode.py
+++ b/src/black/mode.py
@@ -4,17 +4,12 @@ Mostly around Python language feature support per version and Black configuratio
 chosen by the user.
 """
 
 chosen by the user.
 """
 
-import sys
-
 from dataclasses import dataclass, field
 from dataclasses import dataclass, field
-from enum import Enum
+from enum import Enum, auto
+from hashlib import sha256
 from operator import attrgetter
 from operator import attrgetter
-from typing import Dict, Set
-
-if sys.version_info < (3, 8):
-    from typing_extensions import Final
-else:
-    from typing import Final
+from typing import Dict, Final, Set
+from warnings import warn
 
 from black.const import DEFAULT_LINE_LENGTH
 
 
 from black.const import DEFAULT_LINE_LENGTH
 
@@ -28,6 +23,8 @@ class TargetVersion(Enum):
     PY38 = 8
     PY39 = 9
     PY310 = 10
     PY38 = 8
     PY39 = 9
     PY310 = 10
+    PY311 = 11
+    PY312 = 12
 
 
 class Feature(Enum):
 
 
 class Feature(Enum):
@@ -45,6 +42,11 @@ class Feature(Enum):
     PATTERN_MATCHING = 11
     UNPACKING_ON_FLOW = 12
     ANN_ASSIGN_EXTENDED_RHS = 13
     PATTERN_MATCHING = 11
     UNPACKING_ON_FLOW = 12
     ANN_ASSIGN_EXTENDED_RHS = 13
+    EXCEPT_STAR = 14
+    VARIADIC_GENERICS = 15
+    DEBUG_F_STRINGS = 16
+    PARENTHESIZED_CONTEXT_MANAGERS = 17
+    TYPE_PARAMS = 18
     FORCE_OPTIONAL_PARENTHESES = 50
 
     # __future__ flags
     FORCE_OPTIONAL_PARENTHESES = 50
 
     # __future__ flags
@@ -77,6 +79,7 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
     },
     TargetVersion.PY38: {
         Feature.F_STRINGS,
     },
     TargetVersion.PY38: {
         Feature.F_STRINGS,
+        Feature.DEBUG_F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
@@ -89,6 +92,7 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
     },
     TargetVersion.PY39: {
         Feature.F_STRINGS,
     },
     TargetVersion.PY39: {
         Feature.F_STRINGS,
+        Feature.DEBUG_F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
@@ -99,9 +103,45 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
     },
     TargetVersion.PY310: {
         Feature.F_STRINGS,
     },
     TargetVersion.PY310: {
         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,
+    },
+    TargetVersion.PY311: {
+        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,
+    },
+    TargetVersion.PY312: {
+        Feature.F_STRINGS,
+        Feature.DEBUG_F_STRINGS,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
         Feature.NUMERIC_UNDERSCORES,
         Feature.TRAILING_COMMA_IN_CALL,
         Feature.TRAILING_COMMA_IN_DEF,
@@ -112,7 +152,11 @@ VERSION_TO_FEATURES: Dict[TargetVersion, Set[Feature]] = {
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
         Feature.POS_ONLY_ARGUMENTS,
         Feature.UNPACKING_ON_FLOW,
         Feature.ANN_ASSIGN_EXTENDED_RHS,
+        Feature.PARENTHESIZED_CONTEXT_MANAGERS,
         Feature.PATTERN_MATCHING,
         Feature.PATTERN_MATCHING,
+        Feature.EXCEPT_STAR,
+        Feature.VARIADIC_GENERICS,
+        Feature.TYPE_PARAMS,
     },
 }
 
     },
 }
 
@@ -121,6 +165,29 @@ def supports_feature(target_versions: Set[TargetVersion], feature: Feature) -> b
     return all(feature in VERSION_TO_FEATURES[version] for version in target_versions)
 
 
     return all(feature in VERSION_TO_FEATURES[version] for version in target_versions)
 
 
+class Preview(Enum):
+    """Individual preview style features."""
+
+    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):
+    """Visible deprecation warning."""
+
+
 @dataclass
 class Mode:
     target_versions: Set[TargetVersion] = field(default_factory=set)
 @dataclass
 class Mode:
     target_versions: Set[TargetVersion] = field(default_factory=set)
@@ -128,8 +195,30 @@ class Mode:
     string_normalization: bool = True
     is_pyi: bool = False
     is_ipynb: bool = False
     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
     magic_trailing_comma: bool = True
     experimental_string_processing: bool = False
+    python_cell_magics: Set[str] = field(default_factory=set)
+    preview: bool = False
+
+    def __post_init__(self) -> None:
+        if self.experimental_string_processing:
+            warn(
+                "`experimental string processing` has been included in `preview`"
+                " and deprecated. Use `preview` instead.",
+                Deprecated,
+            )
+
+    def __contains__(self, feature: Preview) -> bool:
+        """
+        Provide `Preview.FEATURE in Mode` syntax that mirrors the ``preview`` flag.
+
+        The argument is not checked and features are not differentiated.
+        They only exist to make development easier by clarifying intent.
+        """
+        if feature is Preview.string_processing:
+            return self.preview or self.experimental_string_processing
+        return self.preview
 
     def get_cache_key(self) -> str:
         if self.target_versions:
 
     def get_cache_key(self) -> str:
         if self.target_versions:
@@ -145,7 +234,10 @@ class Mode:
             str(int(self.string_normalization)),
             str(int(self.is_pyi)),
             str(int(self.is_ipynb)),
             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.magic_trailing_comma)),
             str(int(self.experimental_string_processing)),
+            str(int(self.preview)),
+            sha256((",".join(sorted(self.python_cell_magics))).encode()).hexdigest(),
         ]
         return ".".join(parts)
         ]
         return ".".join(parts)
vim configuration

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