1 files changed, 26 insertions, 0 deletions
diff --git a/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/UInt8.jsm b/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/UInt8.jsm
new file mode 100644
index 0000000000..17f0c5c54b
--- /dev/null
+++ b/toolkit/components/uniffi-bindgen-gecko-js/src/templates/js/UInt8.jsm
@@ -0,0 +1,26 @@
+class {{ ffi_converter }} extends FfiConverter {
+    static checkType(name, value) {
+        super.checkType(name, value);
+        if (!Number.isInteger(value)) {
+            throw TypeError(`${name} is not an integer(${value})`);
+        }
+        if (value < 0 || value > 256) {
+            throw TypeError(`${name} exceeds the U8 bounds (${value})`);
+        }
+    }
+    static computeSize() {
+        return 1;
+    }
+    static lift(value) {
+        return value;
+    }
+    static lower(value) {
+        return value;
+    }
+    static write(dataStream, value) {
+        dataStream.writeUint8(value)
+    }
+    static read(dataStream) {
+        return dataStream.readUint8()
+    }
+}