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-rw-r--r--js/src/tests/js1_5/Regress/regress-383674.js58
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/js1_5/Regress/regress-383674.js b/js/src/tests/js1_5/Regress/regress-383674.js
new file mode 100644
index 000000000..688e00629
--- /dev/null
+++ b/js/src/tests/js1_5/Regress/regress-383674.js
@@ -0,0 +1,58 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 383674;
+var summary = 'Statement that implicitly calls toString should not be optimized away as a "useless expression"';
+var actual = '';
+var expect = '';
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+function test()
+{
+ enterFunc ('test');
+ printBugNumber(BUGNUMBER);
+ printStatus (summary);
+
+ options("strict");
+ options("werror");
+
+ expect = 'toString called';
+ actual = 'toString not called';
+ try
+ {
+ var x = {toString: function() {
+ actual = 'toString called';
+ print(actual);
+ }
+ };
+ var f = function() { var j = x; j + ""; }
+ f();
+ reportCompare(expect, actual, summary + ': 1');
+ }
+ catch(ex)
+ {
+ reportCompare("No Error", ex + "", summary + ': 1');
+ }
+
+ actual = 'toString not called';
+ try
+ {
+ (function() { var a =
+ ({toString: function(){
+ actual = 'toString called'; print(actual)} }); a += ""; })();
+ reportCompare(expect, actual, summary + ': 2');
+ }
+ catch(ex)
+ {
+ reportCompare("No Error", ex + "", summary + ': 2');
+ }
+
+ exitFunc ('test');
+}