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-rw-r--r--js/src/tests/non262/class/outerBinding.js48
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/outerBinding.js b/js/src/tests/non262/class/outerBinding.js
new file mode 100644
index 0000000000..19ffcb3e4a
--- /dev/null
+++ b/js/src/tests/non262/class/outerBinding.js
@@ -0,0 +1,48 @@
+// |reftest| skip-if(!xulRuntime.shell)
+//
+// The above skip-if is because global lexicals aren't yet implemented. Remove
+// that and the |evaluate| call below once they are.
+//
+// A class statement creates a mutable lexical outer binding.
+
+class Foo { constructor() { } }
+assertEq(typeof Foo, "function");
+Foo = 5;
+assertEq(Foo, 5);
+
+{
+ class foo { constructor() { } }
+ assertEq(typeof foo, "function");
+ foo = 4;
+ assertEq(foo, 4);
+}
+
+{
+ class PermanentBinding { constructor() { } }
+ delete PermanentBinding;
+ // That...didn't actually work, right?
+ assertEq(typeof PermanentBinding, "function");
+}
+
+evaluate("const globalConstant = 0; var earlyError = true;");
+
+try {
+ evaluate("earlyError = false; class globalConstant { constructor() { } }");
+} catch (e) {
+ if (!(e instanceof SyntaxError))
+ throw e;
+}
+assertEq(earlyError, true);
+
+function strictEvalShadows() {
+ "use strict";
+ let x = 4;
+ eval(`class x { constructor() { } }
+ assertEq(typeof x, "function");
+ `);
+ assertEq(x, 4);
+}
+strictEvalShadows()
+
+if (typeof reportCompare === "function")
+ reportCompare(0, 0, "OK");