X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/a44dc3d59eb46901f9fe893727280903df41fc20..71a2daaacf92d361c09bc7613023b285df83e7bb:/src/black/nodes.py

diff --git a/src/black/nodes.py b/src/black/nodes.py
index a11fb7c..90728f3 100644
--- a/src/black/nodes.py
+++ b/src/black/nodes.py
@@ -563,6 +563,17 @@ def is_one_tuple(node: LN) -> bool:
     )
 
 
+def is_tuple_containing_walrus(node: LN) -> bool:
+    """Return True if `node` holds a tuple that contains a walrus operator."""
+    if node.type != syms.atom:
+        return False
+    gexp = unwrap_singleton_parenthesis(node)
+    if gexp is None or gexp.type != syms.testlist_gexp:
+        return False
+
+    return any(child.type == syms.namedexpr_test for child in gexp.children)
+
+
 def is_one_sequence_between(
     opening: Leaf,
     closing: Leaf,
@@ -778,6 +789,16 @@ def is_import(leaf: Leaf) -> bool:
     )
 
 
+def is_with_stmt(leaf: Leaf) -> bool:
+    """Return True if the given leaf starts a with statement."""
+    return bool(
+        leaf.type == token.NAME
+        and leaf.value == "with"
+        and leaf.parent
+        and leaf.parent.type == syms.with_stmt
+    )
+
+
 def is_type_comment(leaf: Leaf, suffix: str = "") -> bool:
     """Return True if the given leaf is a special comment.
     Only returns true for type comments for now."""