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Code Issues Projects Releases Packages Wiki Activity Actions 3

Format PatternMatchSequence (#6676)

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Harutaka Kawamura 2023-08-23 09:44:33 +09:00 • committed by GitHub
parent c34a342ab4
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9 changed files with 353 additions and 143 deletions
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28
crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/match.py vendored
View file

@ -172,6 +172,7 @@ match x:
case (a as b) as c:
pass
match pattern_singleton:
case (
# leading 1
@ -187,3 +188,30 @@ match pattern_singleton:
...
case False:
...
match foo:
case "a", "b":
pass
case "a", "b",:
pass
case ("a", "b"):
pass
case ["a", "b"]:
pass
case (["a", "b"]):
pass
match foo:
case [ # leading
# leading
# leading
# leading
"a", # trailing
# trailing
# trailing
# trailing
"b",
]:
pass

52
crates/ruff_python_formatter/src/pattern/pattern_match_sequence.rs
View file

@ -1,19 +1,53 @@
use ruff_formatter::{write, Buffer, FormatResult};
use ruff_formatter::prelude::format_with;
use ruff_formatter::{Format, FormatResult};
use ruff_python_ast::PatternMatchSequence;
use crate::{not_yet_implemented_custom_text, FormatNodeRule, PyFormatter};
use crate::builders::PyFormatterExtensions;
use crate::expression::parentheses::{empty_parenthesized, optional_parentheses, parenthesized};
use crate::{FormatNodeRule, PyFormatter};
#[derive(Default)]
pub struct FormatPatternMatchSequence;
#[derive(Debug)]
enum SequenceType {
Tuple,
TupleNoParens,
List,
}
impl FormatNodeRule<PatternMatchSequence> for FormatPatternMatchSequence {
fn fmt_fields(&self, item: &PatternMatchSequence, f: &mut PyFormatter) -> FormatResult<()> {
write!(
f,
[not_yet_implemented_custom_text(
"[NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]",
item
)]
)
let PatternMatchSequence { patterns, range } = item;
let sequence_type = match &f.context().source()[*range].chars().next() {
Some('(') => SequenceType::Tuple,
Some('[') => SequenceType::List,
_ => SequenceType::TupleNoParens,
};
let comments = f.context().comments().clone();
let dangling = comments.dangling(item);
if patterns.is_empty() {
return match sequence_type {
SequenceType::Tuple => empty_parenthesized("(", dangling, ")").fmt(f),
SequenceType::List => empty_parenthesized("[", dangling, "]").fmt(f),
SequenceType::TupleNoParens => {
unreachable!("If empty, it should be either tuple or list")
}
};
}
let items = format_with(|f| {
f.join_comma_separated(range.end())
.nodes(patterns.iter())
.finish()
});
match sequence_type {
SequenceType::Tuple => parenthesized("(", &items, ")")
.with_dangling_comments(dangling)
.fmt(f),
SequenceType::List => parenthesized("[", &items, "]")
.with_dangling_comments(dangling)
.fmt(f),
SequenceType::TupleNoParens => optional_parentheses(&items).fmt(f),
}
}
}

88
crates/ruff_python_formatter/tests/snapshots/black_compatibility@py_310__pattern_matching_complex.py.snap
View file

@ -156,7 +156,7 @@ match x:
```diff
--- Black
+++ Ruff
@@ -2,105 +2,105 @@
@@ -2,97 +2,108 @@
# case black_test_patma_098
match x:
@ -189,7 +189,7 @@ match x:
# case black_check_sequence_then_mapping
match x:
- case [*_]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
return "seq"
- case {}:
+ case {"NOT_YET_IMPLEMENTED_PatternMatchMapping": _, 2: _}:
@ -202,8 +202,7 @@ match x:
- case {0: [1, 2, {}] | True} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
+ case NOT_YET_IMPLEMENTED_PatternMatchOf | (y):
y = 1
- case []:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 2
# case black_test_patma_107
match x:
@ -239,7 +238,7 @@ match x:
# case black_test_patma_185
match Seq():
- case [*_]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
y = 0
# case black_test_patma_063
match x:
@ -257,23 +256,34 @@ match x:
# case black_test_patma_019
match (0, 1, 2):
- case [0, 1, *x, 2]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ *NOT_YET_IMPLEMENTED_PatternMatchStar,
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ]:
y = 0
# case black_test_patma_052
match x:
- case [0]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
y = 0
- case [1, 0] if (x := x[:0]):
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2] if (x := x[:0]):
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ] if (x := x[:0]):
y = 1
- case [1, 0]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ]:
y = 2
# case black_test_patma_191
match w:
- case [x, y, *_]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [x, y, *NOT_YET_IMPLEMENTED_PatternMatchStar]:
z = 0
# case black_test_patma_110
match x:
@ -282,8 +292,7 @@ match x:
y = 0
# case black_test_patma_151
match (x,):
- case [y]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
@@ -100,7 +111,7 @@
z = 0
# case black_test_patma_114
match x:
@ -292,7 +301,7 @@ match x:
y = 0
# case black_test_patma_232
match x:
@@ -108,7 +108,7 @@
@@ -108,7 +119,7 @@
y = 0
# case black_test_patma_058
match x:
@ -301,27 +310,24 @@ match x:
y = 0
# case black_test_patma_233
match x:
@@ -116,11 +116,11 @@
y = 0
# case black_test_patma_078
@@ -118,9 +129,9 @@
match x:
- case []:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 0
- case [""]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
y = 1
- case "":
+ case "NOT_YET_IMPLEMENTED_PatternMatchValue":
y = 2
# case black_test_patma_156
match x:
@@ -128,17 +128,17 @@
@@ -128,17 +139,17 @@
y = 0
# case black_test_patma_189
match w:
- case [x, y, *rest]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [x, y, *NOT_YET_IMPLEMENTED_PatternMatchStar]:
z = 0
# case black_test_patma_042
match x:
@ -336,8 +342,7 @@ match x:
- case {0: [1, 2, {}] | False} | {1: [[]]} | {0: [1, 2, {}]} | [] | "X" | {}:
+ case NOT_YET_IMPLEMENTED_PatternMatchOf | (y):
y = 1
- case []:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 2
```
@ -370,7 +375,7 @@ match x:
y = 0
# case black_check_sequence_then_mapping
match x:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
return "seq"
case {"NOT_YET_IMPLEMENTED_PatternMatchMapping": _, 2: _}:
return "map"
@ -380,7 +385,7 @@ match x:
y = 0
case NOT_YET_IMPLEMENTED_PatternMatchOf | (y):
y = 1
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 2
# case black_test_patma_107
match x:
@ -408,7 +413,7 @@ match x:
y = 2
# case black_test_patma_185
match Seq():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
y = 0
# case black_test_patma_063
match x:
@ -422,19 +427,30 @@ match x:
y = bar
# case black_test_patma_019
match (0, 1, 2):
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
*NOT_YET_IMPLEMENTED_PatternMatchStar,
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
y = 0
# case black_test_patma_052
match x:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
y = 0
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2] if (x := x[:0]):
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
] if (x := x[:0]):
y = 1
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
y = 2
# case black_test_patma_191
match w:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [x, y, *NOT_YET_IMPLEMENTED_PatternMatchStar]:
z = 0
# case black_test_patma_110
match x:
@ -442,7 +458,7 @@ match x:
y = 0
# case black_test_patma_151
match (x,):
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [y]:
z = 0
# case black_test_patma_114
match x:
@ -462,9 +478,9 @@ match x:
y = 0
# case black_test_patma_078
match x:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 0
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
y = 1
case "NOT_YET_IMPLEMENTED_PatternMatchValue":
y = 2
@ -474,7 +490,7 @@ match x:
y = 0
# case black_test_patma_189
match w:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [x, y, *NOT_YET_IMPLEMENTED_PatternMatchStar]:
z = 0
# case black_test_patma_042
match x:
@ -486,7 +502,7 @@ match x:
y = 0
case NOT_YET_IMPLEMENTED_PatternMatchOf | (y):
y = 1
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
y = 2
```

100
crates/ruff_python_formatter/tests/snapshots/black_compatibility@py_310__pattern_matching_extras.py.snap
View file

@ -131,15 +131,9 @@ match bar1:
```diff
--- Black
+++ Ruff
@@ -1,13 +1,13 @@
import match
match something:
- case [a as b]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
@@ -5,9 +5,9 @@
print(b)
- case [a as b, c, d, e as f]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [a as b, c, d, e as f]:
print(f)
- case Point(a as b):
+ case NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0):
@ -158,7 +152,7 @@ match bar1:
pass
case match:
pass
@@ -23,32 +23,35 @@
@@ -23,32 +23,47 @@
def func(match: case, case: match) -> case:
match Something():
@ -171,10 +165,13 @@ match bar1:
match maybe, multiple:
- case perhaps, 5:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case perhaps, "NOT_YET_IMPLEMENTED_PatternMatchValue":
pass
- case perhaps, 6,:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case (
+ perhaps,
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ):
pass
@ -184,10 +181,19 @@ match bar1:
+ more := (than, one),
+ indeed,
+):
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case _, (
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ):
pass
- case [[5], (6)], [7],:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ [
+ ["NOT_YET_IMPLEMENTED_PatternMatchValue"],
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ ],
+ ["NOT_YET_IMPLEMENTED_PatternMatchValue"],
+ ]:
pass
case _:
pass
@ -195,14 +201,14 @@ match bar1:
match a, *b, c:
- case [*_]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
assert "seq" == _
- case {}:
+ case {"NOT_YET_IMPLEMENTED_PatternMatchMapping": _, 2: _}:
assert "map" == b
@@ -59,15 +62,10 @@
@@ -59,12 +74,7 @@
),
case,
):
@ -215,17 +221,13 @@ match bar1:
+ case NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0):
pass
- case [a as match]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
pass
case case:
@@ -80,40 +78,35 @@
case [a as match]:
@@ -80,40 +90,43 @@
match a, *b(), c:
- case d, *f, g:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case d, *NOT_YET_IMPLEMENTED_PatternMatchStar, g:
pass
@ -247,11 +249,19 @@ match bar1:
pass
- case 2 as b, 3 as c:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case (
+ "NOT_YET_IMPLEMENTED_PatternMatchValue" as b,
+ "NOT_YET_IMPLEMENTED_PatternMatchValue" as c,
+ ):
pass
- case 4 as d, (5 as e), (6 | 7 as g), *h:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case (
+ "NOT_YET_IMPLEMENTED_PatternMatchValue" as d,
+ "NOT_YET_IMPLEMENTED_PatternMatchValue" as e,
+ NOT_YET_IMPLEMENTED_PatternMatchOf | (y) as g,
+ *NOT_YET_IMPLEMENTED_PatternMatchStar,
+ ):
pass
@ -277,9 +287,9 @@ match bar1:
import match
match something:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [a as b]:
print(b)
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [a as b, c, d, e as f]:
print(f)
case NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0):
print(b)
@ -306,9 +316,12 @@ def func(match: case, case: match) -> case:
match maybe, multiple:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case perhaps, "NOT_YET_IMPLEMENTED_PatternMatchValue":
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case (
perhaps,
"NOT_YET_IMPLEMENTED_PatternMatchValue",
):
pass
@ -316,16 +329,25 @@ match (
more := (than, one),
indeed,
):
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case _, (
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
):
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
[
["NOT_YET_IMPLEMENTED_PatternMatchValue"],
"NOT_YET_IMPLEMENTED_PatternMatchValue",
],
["NOT_YET_IMPLEMENTED_PatternMatchValue"],
]:
pass
case _:
pass
match a, *b, c:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [*NOT_YET_IMPLEMENTED_PatternMatchStar]:
assert "seq" == _
case {"NOT_YET_IMPLEMENTED_PatternMatchMapping": _, 2: _}:
assert "map" == b
@ -341,7 +363,7 @@ match match(
case NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0):
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [a as match]:
pass
case case:
@ -354,7 +376,7 @@ match match:
match a, *b(), c:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case d, *NOT_YET_IMPLEMENTED_PatternMatchStar, g:
pass
@ -369,10 +391,18 @@ match something:
case "NOT_YET_IMPLEMENTED_PatternMatchValue" as a:
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue" as b,
"NOT_YET_IMPLEMENTED_PatternMatchValue" as c,
):
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue" as d,
"NOT_YET_IMPLEMENTED_PatternMatchValue" as e,
NOT_YET_IMPLEMENTED_PatternMatchOf | (y) as g,
*NOT_YET_IMPLEMENTED_PatternMatchStar,
):
pass

12
crates/ruff_python_formatter/tests/snapshots/black_compatibility@py_310__pattern_matching_generic.py.snap
View file

@ -128,7 +128,7 @@ with match() as match:
y = 0
self.assertIs(x, False)
self.assertEqual(y, 0)
@@ -73,14 +73,14 @@
@@ -73,7 +73,7 @@
x = 0
y = None
match x:
@ -137,14 +137,6 @@ with match() as match:
y = 0
self.assertEqual(x, 0)
self.assertIs(y, None)
x = range(3)
match x:
- case [y, case as x, z]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
w = 0
# At least one of the above branches must have been taken, because every Python
```
## Ruff Output
@ -232,7 +224,7 @@ def get_grammars(target_versions: Set[TargetVersion]) -> List[Grammar]:
x = range(3)
match x:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [y, case as x, z]:
w = 0
# At least one of the above branches must have been taken, because every Python

99
crates/ruff_python_formatter/tests/snapshots/black_compatibility@py_310__pattern_matching_simple.py.snap
View file

@ -104,54 +104,47 @@ def where_is(point):
```diff
--- Black
+++ Ruff
@@ -1,92 +1,92 @@
# Cases sampled from PEP 636 examples
match command.split():
- case [action, obj]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
... # interpret action, obj
match command.split():
- case [action]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
... # interpret single-verb action
- case [action, obj]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
@@ -11,82 +11,97 @@
... # interpret action, obj
match command.split():
- case ["quit"]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
print("Goodbye!")
quit_game()
- case ["look"]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
current_room.describe()
- case ["get", obj]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue", obj]:
character.get(obj, current_room)
- case ["go", direction]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue", direction]:
current_room = current_room.neighbor(direction)
# The rest of your commands go here
match command.split():
- case ["drop", *objects]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ *NOT_YET_IMPLEMENTED_PatternMatchStar,
+ ]:
for obj in objects:
character.drop(obj, current_room)
# The rest of your commands go here
match command.split():
- case ["quit"]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
pass
- case ["go", direction]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue", direction]:
print("Going:", direction)
- case ["drop", *objects]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ *NOT_YET_IMPLEMENTED_PatternMatchStar,
+ ]:
print("Dropping: ", *objects)
case _:
print(f"Sorry, I couldn't understand {command!r}")
@ -166,21 +159,30 @@ def where_is(point):
match command.split():
- case ["go", ("north" | "south" | "east" | "west")]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ NOT_YET_IMPLEMENTED_PatternMatchOf | (y),
+ ]:
current_room = current_room.neighbor(...)
# how do I know which direction to go?
match command.split():
- case ["go", ("north" | "south" | "east" | "west") as direction]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ NOT_YET_IMPLEMENTED_PatternMatchOf | (y) as direction,
+ ]:
current_room = current_room.neighbor(direction)
match command.split():
- case ["go", direction] if direction in current_room.exits:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2] if direction in current_room.exits:
+ case [
+ "NOT_YET_IMPLEMENTED_PatternMatchValue",
+ direction,
+ ] if direction in current_room.exits:
current_room = current_room.neighbor(direction)
- case ["go", _]:
+ case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
+ case ["NOT_YET_IMPLEMENTED_PatternMatchValue", _]:
print("Sorry, you can't go that way")
match event.get():
@ -232,39 +234,45 @@ def where_is(point):
# Cases sampled from PEP 636 examples
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [action, obj]:
... # interpret action, obj
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [action]:
... # interpret single-verb action
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [action, obj]:
... # interpret action, obj
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
print("Goodbye!")
quit_game()
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
current_room.describe()
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue", obj]:
character.get(obj, current_room)
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue", direction]:
current_room = current_room.neighbor(direction)
# The rest of your commands go here
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
*NOT_YET_IMPLEMENTED_PatternMatchStar,
]:
for obj in objects:
character.drop(obj, current_room)
# The rest of your commands go here
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue"]:
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue", direction]:
print("Going:", direction)
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
*NOT_YET_IMPLEMENTED_PatternMatchStar,
]:
print("Dropping: ", *objects)
case _:
print(f"Sorry, I couldn't understand {command!r}")
@ -276,18 +284,27 @@ match command.split():
... # Code for picking up the given object
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
NOT_YET_IMPLEMENTED_PatternMatchOf | (y),
]:
current_room = current_room.neighbor(...)
# how do I know which direction to go?
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
NOT_YET_IMPLEMENTED_PatternMatchOf | (y) as direction,
]:
current_room = current_room.neighbor(direction)
match command.split():
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2] if direction in current_room.exits:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
direction,
] if direction in current_room.exits:
current_room = current_room.neighbor(direction)
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ["NOT_YET_IMPLEMENTED_PatternMatchValue", _]:
print("Sorry, you can't go that way")
match event.get():

17
crates/ruff_python_formatter/tests/snapshots/format@fmt_skip__match.py.snap
View file

@ -97,11 +97,11 @@ def http_error(status):
match point:
case (0, 0): # fmt: skip
print("Origin")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ("NOT_YET_IMPLEMENTED_PatternMatchValue", y):
print(f"Y={y}")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case (x, "NOT_YET_IMPLEMENTED_PatternMatchValue"):
print(f"X={x}")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case (x, y):
print(f"X={x}, Y={y}")
case _:
raise ValueError("Not a point")
@ -127,15 +127,18 @@ def location(point):
match points:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case []:
print("No points in the list.")
case [
Point(0, 0)
]: # fmt: skip
print("The origin is the only point in the list.")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0)]:
print(f"A single point {x}, {y} is in the list.")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0),
NOT_YET_IMPLEMENTED_PatternMatchClass(0, 0),
]:
print(f"Two points on the Y axis at {y1}, {y2} are in the list.")
case _:
print("Something else is found in the list.")
@ -148,7 +151,7 @@ match test_variable:
40
): # fmt: skip
print("A warning has been received.")
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ("NOT_YET_IMPLEMENTED_PatternMatchValue", code, _):
print(f"An error {code} occurred.")

3
crates/ruff_python_formatter/tests/snapshots/format@parentheses__opening_parentheses_comment_empty.py.snap
View file

@ -142,7 +142,8 @@ match ( # d 2
case d2:
pass
match d3:
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case ( # d 3
):
pass
while ( # d 4
):

97
crates/ruff_python_formatter/tests/snapshots/format@statement__match.py.snap
View file

@ -178,6 +178,7 @@ match x:
case (a as b) as c:
pass
match pattern_singleton:
case (
# leading 1
@ -193,6 +194,33 @@ match pattern_singleton:
...
case False:
...
match foo:
case "a", "b":
pass
case "a", "b",:
pass
case ("a", "b"):
pass
case ["a", "b"]:
pass
case (["a", "b"]):
pass
match foo:
case [ # leading
# leading
# leading
# leading
"a", # trailing
# trailing
# trailing
# trailing
"b",
]:
pass
```
## Output
@ -226,13 +254,21 @@ match [ # comment
second,
third,
]: # another comment
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
pass
match ( # comment
"a b c"
).split(): # another comment
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
pass
@ -240,7 +276,11 @@ match ( # comment
# let's go
yield foo
): # another comment
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2]:
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
pass
@ -268,7 +308,10 @@ match newlines:
case "NOT_YET_IMPLEMENTED_PatternMatchValue" if foo == 2: # second
pass
case [NOT_YET_IMPLEMENTED_PatternMatchSequence, 2] if (foo := 1): # third
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
) if (foo := 1): # third
pass
case "NOT_YET_IMPLEMENTED_PatternMatchValue":
@ -360,6 +403,7 @@ match x:
case (a as b) as c:
pass
match pattern_singleton:
case (
# leading 1
@ -375,6 +419,51 @@ match pattern_singleton:
...
case False:
...
match foo:
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
):
pass
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
):
pass
case (
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
):
pass
case [
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
pass
case (
[
"NOT_YET_IMPLEMENTED_PatternMatchValue",
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]
):
pass
match foo:
case [
# leading
# leading
# leading
# leading
"NOT_YET_IMPLEMENTED_PatternMatchValue", # trailing
# trailing
# trailing
# trailing
"NOT_YET_IMPLEMENTED_PatternMatchValue",
]:
pass
```