JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / tests / stress / function-name-scope.js

diff --git a/tests/stress/function-name-scope.js b/tests/stress/function-name-scope.js
new file mode 100644 (file)
index 0000000..a93e60f
--- /dev/null
+++ b/tests/stress/function-name-scope.js
@@ -0,0 +1,40 @@
+function foo() {
+    return function bar(str) {
+        var barBefore = bar;
+        var result = eval(str);
+        return [
+            barBefore,
+            bar,
+            function () {
+                return bar;
+            },
+            result
+        ];
+    }
+}
+
+function check() {
+    var bar = foo();
+    
+    function verify(result, barAfter, evalResult) {
+        if (result[0] !== bar)
+            throw "Error: bad first entry: " + result[0];
+        if (result[1] !== barAfter)
+            throw "Error: bad first entry: " + result[1];
+        var subResult = result[2]();
+        if (subResult !== barAfter)
+            throw "Error: bad second entry: " + result[2] + "; returned: " + subResult;
+        if (result[3] !== evalResult)
+            throw "Error: bad third entry: " + result[3] + "; expected: " + evalResult;
+    }
+    
+    verify(bar("42"), bar, 42);
+    verify(bar("bar"), bar, bar);
+    verify(bar("var bar = 42; function fuzz() { return bar; }; fuzz()"), 42, 42);
+}
+
+// Execute check() more than once. At the time that we wrote this regression test, trunk would fail on
+// the second execution. Executing 100 times would also gives us some optimizing JIT coverage.
+for (var i = 0; i < 100; ++i)
+    check();
+