1 files changed, 130 insertions, 0 deletions
diff --git a/js/src/tests/non262/extensions/clone-v1-typed-array.js b/js/src/tests/non262/extensions/clone-v1-typed-array.js
new file mode 100644
index 0000000000..ae81075e83
--- /dev/null
+++ b/js/src/tests/non262/extensions/clone-v1-typed-array.js
@@ -0,0 +1,130 @@
+// |reftest| skip-if(!xulRuntime.shell)
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+
+// This file is a copy of clone-typed-array.js from before v2 structured clone
+// was implemented. If you run this test under a v1-writing engine with the
+// environment variable JS_RECORD_RESULTS set, then it will output a log of
+// structured clone buffers resulting from running this test. You can then use
+// that log as input to another run of this same test on a newer engine, to
+// verify that older-format structured clone data can be deserialized properly.
+
+var old_serialize = serialize;
+var captured = [];
+
+if (os.getenv("JS_RECORD_RESULTS") !== undefined) {
+  serialize = function(o) {
+    var data;
+    try {
+      data = old_serialize(o);
+      captured.push(data);
+      return data;
+    } catch(e) {
+      captured.push(e);
+      throw(e);
+    }
+  };
+} else {
+  loadRelativeToScript("clone-v1-typed-array-data.dat");
+  serialize = function(d) {
+    var data = captured.shift();
+    if (data instanceof Error)
+      throw(data);
+    else
+      return data;
+  };
+}
+
+function assertArraysEqual(a, b) {
+    assertEq(a.constructor, b.constructor);
+    assertEq(a.length, b.length);
+    for (var i = 0; i < a.length; i++)
+        assertEq(a[i], b[i]);
+}
+
+function check(b) {
+    var a = deserialize(serialize(b));
+    assertArraysEqual(a, b);
+}
+
+function checkPrototype(ctor) {
+    var threw = false;
+    try {
+	serialize(ctor.prototype);
+	throw new Error("serializing " + ctor.name + ".prototype should throw a TypeError");
+    } catch (exc) {
+	if (!(exc instanceof TypeError))
+	    throw exc;
+    }
+}
+
+function test() {
+    // Test cloning ArrayBuffer objects.
+    check(new ArrayBuffer(0));
+    check(new ArrayBuffer(7));
+    checkPrototype(ArrayBuffer);
+
+    // Test cloning typed array objects.
+    var ctors = [
+        Int8Array,
+        Uint8Array,
+        Int16Array,
+        Uint16Array,
+        Int32Array,
+        Uint32Array,
+        Float32Array,
+        Float64Array,
+        Uint8ClampedArray];
+
+    var b;
+    for (var i = 0; i < ctors.length; i++) {
+        var ctor = ctors[i];
+
+        // check empty array
+        b = new ctor(0);
+        check(b);
+
+        // check array with some elements
+        b = new ctor(100);
+        var v = 1;
+        for (var j = 0; j < 100; j++) {
+            b[j] = v;
+            v *= 7;
+        }
+        b[99] = NaN; // check serializing NaNs too
+        check(b);
+
+	// try the prototype
+	checkPrototype(ctor);
+    }
+
+    // Cloning should separately copy two TypedArrays backed by the same
+    // ArrayBuffer. This also tests cloning TypedArrays where the arr->data
+    // pointer is not 8-byte-aligned.
+
+    var base = new Int8Array([0, 1, 2, 3]);
+    b = [new Int8Array(base.buffer, 0, 3), new Int8Array(base.buffer, 1, 3)];
+    var a = deserialize(serialize(b));
+    base[1] = -1;
+    a[0][2] = -2;
+    assertArraysEqual(b[0], new Int8Array([0, -1, 2])); // shared with base
+    assertArraysEqual(b[1], new Int8Array([-1, 2, 3])); // shared with base
+    assertArraysEqual(a[0], new Int8Array([0, 1, -2])); // not shared with base
+    assertArraysEqual(a[1], new Int8Array([1, 2, 3]));  // not shared with base or a[0]
+}
+
+test();
+reportCompare(0, 0, 'ok');
+
+if (os.getenv("JS_RECORD_RESULTS") !== undefined) {
+  print("var captured = [];");
+  for (var i in captured) {
+    var s = "captured[" + i + "] = ";
+    if (captured[i] instanceof Error) {
+      print(s + captured[i].toString() + ";");
+    } else {
+      data = captured[i].clonebuffer.split('').map(c => c.charCodeAt(0));
+      print(s + "serialize(0); captured[" + i + "].clonebuffer = String.fromCharCode(" + data.join(", ") + ");");
+    }
+  }
+}