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-rw-r--r--js/src/jit-test/tests/basic/weird-scopechains.js31
1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/weird-scopechains.js b/js/src/jit-test/tests/basic/weird-scopechains.js
new file mode 100644
index 0000000000..c992f315bb
--- /dev/null
+++ b/js/src/jit-test/tests/basic/weird-scopechains.js
@@ -0,0 +1,31 @@
+function checkNameLookup() {
+ return "global";
+}
+
+function assertWithMessage(got, expected, message) {
+ assertEq(message + ": " + got, message + ": " + expected);
+}
+
+var obj = {
+ checkNameLookup: function() {
+ return "local";
+ },
+
+ checkThisBinding: function() {
+ return this.checkNameLookup();
+ },
+};
+
+evaluate("(" + function() {
+ assertWithMessage(checkNameLookup(), "local", "nameLookup");
+ assertWithMessage(checkThisBinding(), "local", "thisBinding");
+
+ // Important: lambda needs to close over "reason", so it won't just get the
+ // scope of testFunc as its scope. Instead it'll get the Call object
+ // "reason" lives in.
+ var reason = " in lambda in Call";
+ (function() {
+ assertWithMessage(checkNameLookup(), "local", "nameLookup" + reason);
+ assertWithMessage(checkThisBinding(), "local", "thisBinding" + reason);
+ })();
+} + ")()", {envChainObject: obj});