Add m-esr52 at 52.6.0

1 files changed, 29 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/TypedArray/subarray.js b/js/src/tests/ecma_6/TypedArray/subarray.js
new file mode 100644
index 000000000..a7bfab0ef
--- /dev/null
+++ b/js/src/tests/ecma_6/TypedArray/subarray.js
@@ -0,0 +1,29 @@
+// Bug 1291003
+if (typeof detachArrayBuffer === "function") {
+    for (let constructor of typedArrayConstructors) {
+        const elementSize = constructor.BYTES_PER_ELEMENT;
+
+        let targetOffset;
+        let buffer = new ArrayBuffer(2 * elementSize);
+        let typedArray = new constructor(buffer, 1 * elementSize, 1);
+        typedArray.constructor = {
+            [Symbol.species]: function(ab, offset, length) {
+                targetOffset = offset;
+                return new constructor(1);
+            }
+        };
+
+        let beginIndex = {
+            valueOf() {
+                detachArrayBuffer(buffer);
+                return 0;
+            }
+        };
+        typedArray.subarray(beginIndex);
+
+        assertEq(targetOffset, 1 * elementSize);
+    }
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(true, true);