Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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});