[rust] Macros

1 files changed, 12 insertions, 0 deletions

diff --git a/rust/macros/src/lib.rs b/rust/macros/src/lib.rs
new file mode 100644
index 0000000..267aa46
--- /dev/null
+++ b/rust/macros/src/lib.rs
@@ -0,0 +1,12 @@
+
+#[macro_export]
+macro_rules! hashmap {
+    ( $($k:expr => $v:expr),+, ) => { $crate::hashmap!($($k => $v),+) };
+    ( $($k:expr => $v:expr),* ) => {
+        {
+            let mut hm = ::std::collections::HashMap::new();
+            $( hm.insert($k, $v); )*
+            hm
+        }
+    };
+}