1 files changed, 36 insertions, 0 deletions
diff --git a/rust/macros/concat_idents.rs b/rust/macros/concat_idents.rs
new file mode 100644
index 000000000..47b6add37
--- /dev/null
+++ b/rust/macros/concat_idents.rs
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+
+use proc_macro2::{
+    Ident,
+    TokenStream,
+    TokenTree, //
+};
+use syn::{
+    parse::{
+        Parse,
+        ParseStream, //
+    },
+    Result,
+    Token, //
+};
+
+pub(crate) struct Input {
+    a: Ident,
+    _comma: Token![,],
+    b: Ident,
+}
+
+impl Parse for Input {
+    fn parse(input: ParseStream<'_>) -> Result<Self> {
+        Ok(Self {
+            a: input.parse()?,
+            _comma: input.parse()?,
+            b: input.parse()?,
+        })
+    }
+}
+
+pub(crate) fn concat_idents(Input { a, b, .. }: Input) -> TokenStream {
+    let res = Ident::new(&format!("{a}{b}"), b.span());
+    TokenStream::from_iter([TokenTree::Ident(res)])
+}