diff --git a/bash-5.1/r_assoc/src/lib.rs b/bash-5.1/r_assoc/src/lib.rs
new file mode 100644
index 0000000000000000000000000000000000000000..7ee4bb657c46411f702a456a917be37bb2c04cbc
--- /dev/null
+++ b/bash-5.1/r_assoc/src/lib.rs
@@ -0,0 +1,31 @@
+use libc::*;
+use r_bash::*;
+use rcommon::WordList as WORD_LIST;
+use rcommon::WordDesc as WORD_DESC;
+
+pub type sh_free_func_t = unsafe extern "C" fn(*mut libc::c_void) -> ();
+
+#[macro_export] 
+macro_rules! assoc_empty {
+    ($h:expr) =>{
+        (*$h).nentries == 0 as libc::c_int
+    }
+}
+
+#[macro_export]
+macro_rules! savestring {
+    ($name:expr) => {
+        libc::strcpy(
+            malloc((1 as libc::c_int + libc::strlen($name) as libc::c_int) as size_t) as *mut libc::c_char,
+            $name )
+    }
+}
+
+#[macro_export]
+macro_rules! ALL_ELEMENT_SUB {
+    ($c:expr) => {
+        $c == '@' as i32 || $c == '*' as i32
+    }
+}
+
+