Fix "# pyright: ignore" comment mobility

CHANGES.md

@@ -14,6 +14,9 @@
 
 <!-- Changes that affect Black's preview style -->
 
+- Black now avoids breaking up lines containing a comment beginning with "# pyright:
+  ignore". (#3661)
+
 ### Configuration
 
 <!-- Changes to how Black can be configured -->

src/black/nodes.py

@@ -821,7 +821,9 @@ def is_type_comment(leaf: Leaf, suffix: str = "") -> bool:
     Only returns true for type comments for now."""
     t = leaf.type
     v = leaf.value
-    return t in {token.COMMENT, STANDALONE_COMMENT} and v.startswith("# type:" + suffix)
+    return t in {token.COMMENT, STANDALONE_COMMENT} and (
+        v.startswith((f"# pyright:{suffix}", f"# type:{suffix}"))
+    )
 
 
 def wrap_in_parentheses(parent: Node, child: LN, *, visible: bool = True) -> None:

tests/data/preview/comments7.py

@@ -187,6 +187,7 @@ def func():
         0.0789,
         a[-1],  # type: ignore
     )
+    c = call(0.0123, 0.0456, 0.0789, 0.0123, 0.0789, a[-1])  # pyright: ignore[reportGeneralTypeIssues]
     c = call(0.0123, 0.0456, 0.0789, 0.0123, 0.0789, a[-1])  # type: ignore
     c = call(
         0.0123,

tests/data/preview/prefer_rhs_split.py

@@ -55,6 +55,20 @@
 )
 
 
+# Make sure unsplittable pyright: ignore comments won't be moved.
+some_kind_of_table[some_key] = util.some_function(  # pyright: ignore[reportGeneralTypeIssues]  # noqa: E501
+    some_arg
+).intersection(pk_cols)
+
+some_kind_of_table[
+    some_key
+] = lambda obj: obj.some_long_named_method()  # pyright: ignore[reportGeneralTypeIssues]  # noqa: E501
+
+some_kind_of_table[
+    some_key  # pyright: ignore[reportGeneralTypeIssues]  # noqa: E501
+] = lambda obj: obj.some_long_named_method()
+
+
 # Make sure unsplittable type ignore won't be moved.
 some_kind_of_table[some_key] = util.some_function(  # type: ignore  # noqa: E501
     some_arg

tests/data/simple_cases/comments6.py

@@ -86,6 +86,19 @@ def f(
 def func(
     a=some_list[0],  # type: int
 ):  # type: () -> int
+    c = call(
+        0.0123,
+        0.0456,
+        0.0789,
+        0.0123,
+        0.0456,
+        0.0789,
+        0.0123,
+        0.0456,
+        0.0789,
+        a[-1],  # pyright: ignore[reportGeneralTypeIssues]
+    )
+
     c = call(
         0.0123,
         0.0456,
@@ -99,6 +112,10 @@ def func(
         a[-1],  # type: ignore
     )
 
+    c = call(
+        "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa"  # pyright: ignore[reportGeneralTypeIssues]
+    )
+
     c = call(
         "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa", "aaaaaaaa"  # type: ignore
     )
@@ -108,11 +125,20 @@ def func(
     "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
 )
 
+AAAAAAAAAAAAA = [AAAAAAAAAAAAA] + SHARED_AAAAAAAAAAAAA + USER_AAAAAAAAAAAAA + AAAAAAAAAAAAA  # pyright: ignore[reportGeneralTypeIssues]
+
 AAAAAAAAAAAAA = [AAAAAAAAAAAAA] + SHARED_AAAAAAAAAAAAA + USER_AAAAAAAAAAAAA + AAAAAAAAAAAAA  # type: ignore
 
+call_to_some_function_asdf(
+    foo,
+    [AAAAAAAAAAAAAAAAAAAAAAA, AAAAAAAAAAAAAAAAAAAAAAA, AAAAAAAAAAAAAAAAAAAAAAA, BBBBBBBBBBBB],  # pyright: ignore[reportGeneralTypeIssues]
+)
+
 call_to_some_function_asdf(
     foo,
     [AAAAAAAAAAAAAAAAAAAAAAA, AAAAAAAAAAAAAAAAAAAAAAA, AAAAAAAAAAAAAAAAAAAAAAA, BBBBBBBBBBBB],  # type: ignore
 )
 
+aaaaaaaaaaaaa, bbbbbbbbb = map(list, map(itertools.chain.from_iterable, zip(*items)))  # pyright: ignore[reportGeneralTypeIssues]
+
 aaaaaaaaaaaaa, bbbbbbbbb = map(list, map(itertools.chain.from_iterable, zip(*items)))  # type: ignore[arg-type]