Add m-esr52 at 52.6.0

1 files changed, 37 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/ion/array-splice.js b/js/src/jit-test/tests/ion/array-splice.js
new file mode 100644
index 000000000..f75224d7a
--- /dev/null
+++ b/js/src/jit-test/tests/ion/array-splice.js
@@ -0,0 +1,37 @@
+function test1() {
+    // splice GetElement calls are observable and should be executed even if
+    // the return value of splice is unused.
+    Object.defineProperty(Object.prototype, "0", {get: function() {
+	c++;
+    }, set: function() {}});
+    var arr = [,,,];
+    var c = 0;
+    for (var i=0; i<100; i++) {
+	arr.splice(0, 1);
+	arr.length = 1;
+    }
+
+    assertEq(c, 100);
+}
+test1();
+
+function test2() {
+    var arr = [];
+    for (var i=0; i<100; i++)
+	arr.push(i);
+    for (var i=0; i<40; i++)
+	arr.splice(0, 2);
+    assertEq(arr.length, 20);
+    assertEq(arr[0], 80);
+}
+test2();
+
+function testNonArray() {
+    for (var i=0; i<10; i++) {
+	var o = {splice:[].splice, 0:"a", 1:"b", 2:"c", length:3};
+	o.splice(0, 2);
+	assertEq(o.length, 1);
+	assertEq(o[0], "c");
+    }
+}
+testNonArray();