1 files changed, 83 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/TypedObject/jit-write-references.js b/js/src/jit-test/tests/TypedObject/jit-write-references.js
new file mode 100644
index 000000000..2ea25004c
--- /dev/null
+++ b/js/src/jit-test/tests/TypedObject/jit-write-references.js
@@ -0,0 +1,83 @@
+if (typeof TypedObject === "undefined")
+    quit();
+
+var T = TypedObject;
+
+var ObjectStruct = new T.StructType({f: T.Object});
+var StringStruct = new T.StructType({f: T.string});
+var ValueStruct = new T.StructType({f: T.Any});
+
+// Suppress ion compilation of the global script.
+with({}){}
+
+var o = new ObjectStruct();
+var s = new StringStruct();
+var v = new ValueStruct();
+
+// Make sure that unboxed null pointers on the stack are marked correctly.
+whatever = new Array();
+function testGC(o, p) {
+    for (var i = 0; i < 5; i++) {
+        minorgc();
+        o.f = p;
+        whatever.push(new Array()); // minorgc needs garbage before it scans the stack.
+    }
+}
+testGC(o, {});
+testGC(o, null);
+
+// Test writing various things to an object field.
+function writeObject(o, v, expected) {
+    o.f = v;
+    assertEq(typeof o.f, "object");
+    assertEq("" + o.f, expected);
+}
+for (var i = 0; i < 5; i++)
+    writeObject(o, {toString: function() { return "helo"} }, "helo");
+for (var i = 0; i < 5; i++)
+    writeObject(o, null, "null");
+for (var i = 0; i < 5; i++)
+    writeObject(o, "three", "three");
+for (var i = 0; i < 5; i++)
+    writeObject(o, 4.5, "4.5");
+for (var i = 0; i < 5; i++) {
+    try {
+        writeObject(o, undefined, "");
+    } catch (e) {
+        assertEq(e instanceof TypeError, true);
+    }
+}
+
+// Test writing various things to a string field.
+function writeString(o, v, expected) {
+    o.f = v;
+    assertEq(typeof o.f, "string");
+    assertEq("" + o.f, expected);
+}
+for (var i = 0; i < 5; i++)
+    writeString(s, {toString: function() { return "helo"} }, "helo");
+for (var i = 0; i < 5; i++)
+    writeString(s, null, "null");
+for (var i = 0; i < 5; i++)
+    writeString(s, "three", "three");
+for (var i = 0; i < 5; i++)
+    writeString(s, 4.5, "4.5");
+for (var i = 0; i < 5; i++)
+    writeString(s, undefined, "undefined");
+
+// Test writing various things to a value field.
+function writeValue(o, v, expectedType, expected) {
+    o.f = v;
+    assertEq(typeof o.f, expectedType);
+    assertEq("" + o.f, expected);
+}
+for (var i = 0; i < 5; i++)
+    writeValue(v, {toString: function() { return "helo"} }, "object", "helo");
+for (var i = 0; i < 5; i++)
+    writeValue(v, null, "object", "null");
+for (var i = 0; i < 5; i++)
+    writeValue(v, "three", "string", "three");
+for (var i = 0; i < 5; i++)
+    writeValue(v, 4.5, "number", "4.5");
+for (var i = 0; i < 5; i++)
+    writeValue(v, undefined, "undefined", "undefined");