Add m-esr52 at 52.6.0

1 files changed, 15 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/modules/module-this.js b/js/src/jit-test/tests/modules/module-this.js
new file mode 100644
index 000000000..10a3241aa
--- /dev/null
+++ b/js/src/jit-test/tests/modules/module-this.js
@@ -0,0 +1,15 @@
+// Test 'this' is undefined in modules.
+
+function parseAndEvaluate(source) {
+    let m = parseModule(source);
+    m.declarationInstantiation();
+    return m.evaluation();
+}
+
+assertEq(typeof(parseAndEvaluate("this")), "undefined");
+
+let m = parseModule("export function getThis() { return this; }");
+m.declarationInstantiation();
+m.evaluation();
+let f = getModuleEnvironmentValue(m, "getThis");
+assertEq(typeof(f()), "undefined");