1 files changed, 72 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/wasm/gc/linking.js b/js/src/jit-test/tests/wasm/gc/linking.js
new file mode 100644
index 0000000000..586011219a
--- /dev/null
+++ b/js/src/jit-test/tests/wasm/gc/linking.js
@@ -0,0 +1,72 @@
+// |jit-test| skip-if: !wasmGcEnabled()
+
+function linkGlobals(typeSection, exportInit, linkType) {
+    let {global} = wasmEvalText(`(module
+        ${typeSection}
+        (global (export "global") ${linkType} ${exportInit})
+    )`).exports;
+
+    wasmEvalText(`(module
+        ${typeSection}
+        (import "" "global"
+            (global ${linkType})
+        )
+    )`, {"": {global}});
+}
+
+function linkTables(typeSection, exportInit, linkType) {
+    let {table} = wasmEvalText(`(module
+        ${typeSection}
+        (table (export "table") ${linkType} (elem (${exportInit})))
+    )`).exports;
+
+    wasmEvalText(`(module
+        ${typeSection}
+        (import "" "table"
+            (table 0 1 ${linkType})
+        )
+    )`, {"": {table}});
+}
+
+function linkFuncs(typeSection, exportInit, linkType) {
+    let {func} = wasmEvalText(`(module
+        ${typeSection}
+        (func
+            (export "func")
+            (param ${linkType})
+            (result ${linkType})
+            unreachable
+        )
+    )`).exports;
+
+    wasmEvalText(`(module
+        ${typeSection}
+        (import "" "func"
+            (func (param ${linkType}) (result ${linkType}))
+        )
+    )`, {"": {func}});
+}
+
+const TESTS = [
+    [
+        "(type (struct (field i32)))",
+        "ref.null 0",
+        "(ref null 0)",
+    ],
+    [
+        "(type (array i32))",
+        "ref.null 0",
+        "(ref null 0)",
+    ],
+    [
+        "(type (struct (field i32))) (type (struct (field (ref 0))))",
+        "ref.null 1",
+        "(ref null 1)",
+    ]
+];
+
+for (let test of TESTS) {
+    linkGlobals(...test);
+    linkTables(...test);
+    linkFuncs(...test);
+}