1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/jsapi-tests/testGCCellPtr.cpp b/js/src/jsapi-tests/testGCCellPtr.cpp
new file mode 100644
index 0000000000..ffa43816c9
--- /dev/null
+++ b/js/src/jsapi-tests/testGCCellPtr.cpp
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jsapi.h"
+#include "jspubtd.h"
+
+#include "js/CompilationAndEvaluation.h"  // JS::Compile
+#include "js/SourceText.h"                // JS::Source{Ownership,Text}
+#include "jsapi-tests/tests.h"
+
+JS::GCCellPtr GivesAndTakesCells(JS::GCCellPtr cell) { return cell; }
+
+BEGIN_TEST(testGCCellPtr) {
+  JS::RootedObject obj(cx, JS_NewPlainObject(cx));
+  CHECK(obj);
+
+  JS::RootedString str(cx, JS_NewStringCopyZ(cx, "probably foobar"));
+  CHECK(str);
+
+  const char* code = "function foo() { return 'bar'; }";
+
+  JS::CompileOptions opts(cx);
+
+  JS::SourceText<mozilla::Utf8Unit> srcBuf;
+  CHECK(srcBuf.init(cx, code, strlen(code), JS::SourceOwnership::Borrowed));
+
+  JS::RootedScript script(cx, JS::Compile(cx, opts, srcBuf));
+  CHECK(script);
+
+  CHECK(!JS::GCCellPtr(nullptr));
+
+  CHECK(JS::GCCellPtr(obj.get()));
+  CHECK(JS::GCCellPtr(obj.get()).kind() == JS::TraceKind::Object);
+  CHECK(JS::GCCellPtr(JS::ObjectValue(*obj)).kind() == JS::TraceKind::Object);
+
+  CHECK(JS::GCCellPtr(str.get()));
+  CHECK(JS::GCCellPtr(str.get()).kind() == JS::TraceKind::String);
+  CHECK(JS::GCCellPtr(JS::StringValue(str)).kind() == JS::TraceKind::String);
+
+  CHECK(JS::GCCellPtr(script.get()));
+  CHECK(!JS::GCCellPtr(nullptr));
+  CHECK(JS::GCCellPtr(script.get()).kind() == JS::TraceKind::Script);
+
+  JS::GCCellPtr objcell(obj.get());
+  JS::GCCellPtr scriptcell = JS::GCCellPtr(script.get());
+  CHECK(GivesAndTakesCells(objcell));
+  CHECK(GivesAndTakesCells(scriptcell));
+
+  JS::GCCellPtr copy = objcell;
+  CHECK(copy == objcell);
+
+  return true;
+}
+END_TEST(testGCCellPtr)