Revert #1142 - Remove unboxed objects

- accounting for removal of watch()/unwatch()

6 files changed, 187 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/basic/unboxed-object-clear-new-script.js b/js/src/jit-test/tests/basic/unboxed-object-clear-new-script.js
new file mode 100644
index 000000000..f55456222
--- /dev/null
+++ b/js/src/jit-test/tests/basic/unboxed-object-clear-new-script.js
@@ -0,0 +1,49 @@
+
+function Foo(a, b) {
+    this.a = a;
+    this.b = b;
+}
+
+function invalidate_foo() {
+    var a = [];
+    var counter = 0;
+    for (var i = 0; i < 50; i++)
+        a.push(new Foo(i, i + 1));
+    Object.defineProperty(Foo.prototype, "a", {configurable: true, set: function() { counter++; }});
+    for (var i = 0; i < 50; i++)
+        a.push(new Foo(i, i + 1));
+    delete Foo.prototype.a;
+    var total = 0;
+    for (var i = 0; i < a.length; i++) {
+        assertEq('a' in a[i], i < 50);
+        total += a[i].b;
+    }
+    assertEq(total, 2550);
+    assertEq(counter, 50);
+}
+invalidate_foo();
+
+function Bar(a, b, fn) {
+    this.a = a;
+    if (b == 30)
+        Object.defineProperty(Bar.prototype, "b", {configurable: true, set: fn});
+    this.b = b;
+}
+
+function invalidate_bar() {
+    var a = [];
+    var counter = 0;
+    function fn() { counter++; }
+    for (var i = 0; i < 50; i++)
+        a.push(new Bar(i, i + 1, fn));
+    delete Bar.prototype.b;
+    var total = 0;
+    for (var i = 0; i < a.length; i++) {
+        assertEq('a' in a[i], true);
+        assertEq('b' in a[i], i < 29);
+        total += a[i].a;
+    }
+    assertEq(total, 1225);
+    assertEq(counter, 21);
+}
+invalidate_bar();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js b/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js
new file mode 100644
index 000000000..691fe166c
--- /dev/null
+++ b/js/src/jit-test/tests/basic/unboxed-object-convert-to-native.js
@@ -0,0 +1,47 @@
+
+// Test various ways of converting an unboxed object to native.
+
+function Foo(a, b) {
+    this.a = a;
+    this.b = b;
+}
+
+var proxyObj = {
+  get: function(recipient, name) {
+    return recipient[name] + 2;
+  }
+};
+
+function f() {
+    var a = [];
+    for (var i = 0; i < 50; i++)
+        a.push(new Foo(i, i + 1));
+
+    var prop = "a";
+
+    i = 0;
+    for (; i < 5; i++)
+        a[i].c = i;
+    for (; i < 10; i++)
+        Object.defineProperty(a[i], 'c', {value: i});
+    for (; i < 15; i++)
+        a[i] = new Proxy(a[i], proxyObj);
+    for (; i < 20; i++)
+        a[i].a = 3.5;
+    for (; i < 25; i++)
+        delete a[i].b;
+    for (; i < 30; i++)
+        a[prop] = 4;
+
+    var total = 0;
+    for (i = 0; i < a.length; i++) {
+        if ('a' in a[i])
+            total += a[i].a;
+        if ('b' in a[i])
+            total += a[i].b;
+        if ('c' in a[i])
+            total += a[i].c;
+    }
+    assertEq(total, 2382.5);
+}
+f();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-getelem.js b/js/src/jit-test/tests/basic/unboxed-object-getelem.js
new file mode 100644
index 000000000..b30b8325a
--- /dev/null
+++ b/js/src/jit-test/tests/basic/unboxed-object-getelem.js
@@ -0,0 +1,20 @@
+
+function f() {
+    var propNames = ["a","b","c","d","e","f","g","h","i","j","x","y"];
+    var arr = [];
+    for (var i=0; i<64; i++)
+	arr.push({x:1, y:2});
+    for (var i=0; i<64; i++) {
+        // Make sure there are expandos with dynamic slots for each object.
+        for (var j = 0; j < propNames.length; j++)
+            arr[i][propNames[j]] = j;
+    }
+    var res = 0;
+    for (var i=0; i<100000; i++) {
+	var o = arr[i % 64];
+	var p = propNames[i % propNames.length];
+	res += o[p];
+    }
+    assertEq(res, 549984);
+}
+f();
diff --git a/js/src/jit-test/tests/basic/unboxed-object-set-property.js b/js/src/jit-test/tests/basic/unboxed-object-set-property.js
new file mode 100644
index 000000000..fdcfcf6b2
--- /dev/null
+++ b/js/src/jit-test/tests/basic/unboxed-object-set-property.js
@@ -0,0 +1,31 @@
+
+// Use the correct receiver when non-native objects are prototypes of other objects.
+
+function Thing(a, b) {
+    this.a = a;
+    this.b = b;
+}
+
+function foo() {
+    var array = [];
+    for (var i = 0; i < 10000; i++)
+        array.push(new Thing(i, i + 1));
+
+    var proto = new Thing(1, 2);
+    var obj = Object.create(proto);
+
+    Object.defineProperty(Thing.prototype, "c", {set:function() { this.d = 0; }});
+    obj.c = 3;
+    assertEq(obj.c, undefined);
+    assertEq(obj.d, 0);
+    assertEq(obj.hasOwnProperty("d"), true);
+    assertEq(proto.d, undefined);
+    assertEq(proto.hasOwnProperty("d"), false);
+
+    obj.a = 3;
+    assertEq(obj.a, 3);
+    assertEq(proto.a, 1);
+    assertEq(obj.hasOwnProperty("a"), true);
+}
+
+foo();
diff --git a/js/src/jit-test/tests/basic/unboxed-property-enumeration.js b/js/src/jit-test/tests/basic/unboxed-property-enumeration.js
new file mode 100644
index 000000000..142d932dd
--- /dev/null
+++ b/js/src/jit-test/tests/basic/unboxed-property-enumeration.js
@@ -0,0 +1,24 @@
+function O() {
+    this.x = 1;
+    this.y = 2;
+}
+function testUnboxed() {
+    var arr = [];
+    for (var i=0; i<100; i++)
+	arr.push(new O);
+
+    var o = arr[arr.length-1];
+    o[0] = 0;
+    o[2] = 2;
+    var sym = Symbol();
+    o[sym] = 1;
+    o.z = 3;
+    Object.defineProperty(o, '3', {value:1,enumerable:false,configurable:false,writable:false});
+    o[4] = 4;
+
+    var props = Reflect.ownKeys(o);
+    assertEq(props[props.length-1], sym);
+
+    assertEq(Object.getOwnPropertyNames(o).join(""), "0234xyz");
+}
+testUnboxed();
diff --git a/js/src/jit-test/tests/ion/unboxed-objects-invalidate.js b/js/src/jit-test/tests/ion/unboxed-objects-invalidate.js
new file mode 100644
index 000000000..02e27614f
--- /dev/null
+++ b/js/src/jit-test/tests/ion/unboxed-objects-invalidate.js
@@ -0,0 +1,16 @@
+
+var a = [];
+for (var i = 0; i < 2000; i++)
+    a.push({f:i});
+
+function f() {
+    var total = 0;
+    for (var i = 0; i < a.length; i++)
+        total += a[i].f;
+    return total;
+}
+assertEq(f(), 1999000);
+
+var sub = Object.create(a[0]);
+
+assertEq(f(), 1999000);