Add m-esr52 at 52.6.0

1 files changed, 45 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/finally-implicit-return.js b/js/src/jit-test/tests/basic/finally-implicit-return.js
new file mode 100644
index 000000000..3bbd78d38
--- /dev/null
+++ b/js/src/jit-test/tests/basic/finally-implicit-return.js
@@ -0,0 +1,45 @@
+// Implicit return at the end of a function should return |undefined|,
+// even if we initially set another return value and then executed a finally
+// block.
+
+function test1() {
+    try {
+        try {
+            return 3;
+        } finally {
+            throw 4;
+        }
+    } catch (e) {}
+}
+assertEq(test1(), undefined);
+
+function test2() {
+    L: try {
+        return 3;
+    } finally {
+        break L;
+    }
+}
+assertEq(test2(), undefined);
+
+function test3() {
+    for (var i=0; i<2; i++) {
+        try {
+            return 5;
+        } finally {
+            continue;
+        }
+    }
+}
+assertEq(test3(), undefined);
+
+// "return;" should work the same way.
+function test4() {
+    L: try {
+        return 6;
+    } finally {
+        break L;
+    }
+    return;
+}
+assertEq(test4(), undefined);