1 files changed, 29 insertions, 0 deletions
diff --git a/mingling_macros/src/func/r_append.rs b/mingling_macros/src/func/r_append.rs
new file mode 100644
index 0000000..247da27
--- /dev/null
+++ b/mingling_macros/src/func/r_append.rs
@@ -0,0 +1,29 @@
+use proc_macro::TokenStream;
+use quote::quote;
+
+use crate::func::r_print::AppendInput;
+
+pub(crate) fn r_append(input: TokenStream) -> TokenStream {
+    let parsed: AppendInput = match syn::parse(input) {
+        Ok(p) => p,
+        Err(e) => return e.to_compile_error().into(),
+    };
+
+    let dst_ident = parsed.dst.clone();
+    let src_tokens = parsed.src;
+
+    let expanded = match dst_ident {
+        Some(dst) => {
+            quote! {
+                #dst.append_other(#src_tokens);
+            }
+        }
+        None => {
+            quote! {
+                __render_result_buffer.append_other(#src_tokens);
+            }
+        }
+    };
+
+    expanded.into()
+}