feat: static_assert! macro

CHANGELOG.md

@@ -45,6 +45,7 @@
   has an explicit `(public = true)` attribute. `(public = false)` also works.
 - `tarantool::error::Error::variant_name` method for getting name of the error
   variant, because somebody needs this.
+- `tarantool::static_assert` macro for adding checks that run at compile time.
 
 ### Changed
 - `define_str_enum` macro now also adds `msgpack::{Encode, Decode}` implementations.

tarantool/src/ffi/helper.rs

@@ -67,6 +67,24 @@ macro_rules! c_ptr {
     };
 }
 
+////////////////////////////////////////////////////////////////////////////////
+// static_assert!
+////////////////////////////////////////////////////////////////////////////////
+
+#[macro_export]
+macro_rules! static_assert {
+    ($e:expr $(,)?) => {
+        const _: () = assert!($e);
+    };
+    ($e:expr, $msg:expr $(,)?) => {
+        const _: () = assert!($e, $msg);
+    };
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// define_dlsym_reloc!
+////////////////////////////////////////////////////////////////////////////////
+
 #[macro_export]
 macro_rules! define_dlsym_reloc {
     (