Squashed 'third_party/autocxx/' content from commit 629e8fa53

git-subtree-dir: third_party/autocxx
git-subtree-split: 629e8fa531a633164c0b52e2a3cab536d4cd0849
Signed-off-by: Brian Silverman <bsilver16384@gmail.com>
Change-Id: I62a03b0049f49adf029e0204639cdb5468dde1a1
diff --git a/engine/src/conversion/analysis/doc_label.rs b/engine/src/conversion/analysis/doc_label.rs
new file mode 100644
index 0000000..767da87
--- /dev/null
+++ b/engine/src/conversion/analysis/doc_label.rs
@@ -0,0 +1,17 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use proc_macro2::Span;
+use syn::{parse_quote, Attribute};
+
+pub(crate) fn make_doc_attrs(label: String) -> Vec<Attribute> {
+    let hexathorpe = syn::token::Pound(Span::call_site());
+    vec![parse_quote! {
+        #hexathorpe [doc = #label]
+    }]
+}