1 files changed, 16 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/scaffolding/templates/UdlMetadata.rs b/third_party/rust/uniffi_bindgen/src/scaffolding/templates/UdlMetadata.rs
new file mode 100644
index 0000000000..0b800343d6
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/scaffolding/templates/UdlMetadata.rs
@@ -0,0 +1,16 @@
+
+/// Export info about the UDL while used to create us
+/// See `uniffi_bindgen::macro_metadata` for how this is used.
+
+// ditto for info about the UDL which spawned us.
+{%- let const_udl_var = "UNIFFI_META_CONST_UDL_{}"|format(ci.namespace().to_shouty_snake_case()) %}
+{%- let static_udl_var = "UNIFFI_META_UDL_{}"|format(ci.namespace().to_shouty_snake_case()) %}
+
+const {{ const_udl_var }}: ::uniffi::MetadataBuffer = ::uniffi::MetadataBuffer::from_code(::uniffi::metadata::codes::UDL_FILE)
+    .concat_str("{{ ci.types.namespace.crate_name }}")
+    .concat_str("{{ ci.namespace() }}")
+    .concat_str("{{ udl_base_name }}");
+
+#[doc(hidden)]
+#[no_mangle]
+pub static {{ static_udl_var }}: [u8; {{ const_udl_var }}.size] = {{ const_udl_var }}.into_array();