summaryrefslogtreecommitdiffstats
path: root/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js')
-rw-r--r--js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js b/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js
new file mode 100644
index 000000000..5f899243b
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testOverwrittenArgumentsWithUndefined.js
@@ -0,0 +1,24 @@
+function f() {
+ var a = arguments;
+ eval("assertEq(arguments[0], 42)");
+ eval("assertEq(arguments, a)");
+ arguments = undefined;
+ eval("assertEq(arguments, undefined)");
+ arguments = a;
+ eval("assertEq(arguments[0], 42)");
+ eval("assertEq(arguments, a)");
+}
+f(42);
+
+function f(z) {
+ var a = arguments;
+ eval("assertEq(arguments[0], 42)");
+ eval("assertEq(arguments, a)");
+ arguments = undefined;
+ eval("assertEq(arguments, undefined)");
+ z = 17;
+ eval("assertEq(a[0], 17)");
+ a[0] = 'ponies';
+ eval("assertEq(z, 'ponies')");
+}
+f(42);