X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/d90297c77bab6e22831b05ffc099bfc709cc7785..d1aee5f7fa136b1f0a7d8dfc318af81009074070:/.vim/bundle/black/tests/data/miscellaneous/debug_visitor.py

diff --git a/.vim/bundle/black/tests/data/miscellaneous/debug_visitor.py b/.vim/bundle/black/tests/data/miscellaneous/debug_visitor.py
new file mode 100644
index 00000000..d1d1ba12
--- /dev/null
+++ b/.vim/bundle/black/tests/data/miscellaneous/debug_visitor.py
@@ -0,0 +1,32 @@
+@dataclass
+class DebugVisitor(Visitor[T]):
+    tree_depth: int = 0
+
+    def visit_default(self, node: LN) -> Iterator[T]:
+        indent = ' ' * (2 * self.tree_depth)
+        if isinstance(node, Node):
+            _type = type_repr(node.type)
+            out(f'{indent}{_type}', fg='yellow')
+            self.tree_depth += 1
+            for child in node.children:
+                yield from self.visit(child)
+
+            self.tree_depth -= 1
+            out(f'{indent}/{_type}', fg='yellow', bold=False)
+        else:
+            _type = token.tok_name.get(node.type, str(node.type))
+            out(f'{indent}{_type}', fg='blue', nl=False)
+            if node.prefix:
+                # We don't have to handle prefixes for `Node` objects since
+                # that delegates to the first child anyway.
+                out(f' {node.prefix!r}', fg='green', bold=False, nl=False)
+            out(f' {node.value!r}', fg='blue', bold=False)
+
+    @classmethod
+    def show(cls, code: str) -> None:
+        """Pretty-prints a given string of `code`.
+
+        Convenience method for debugging.
+        """
+        v: DebugVisitor[None] = DebugVisitor()
+        list(v.visit(lib2to3_parse(code)))