testGCCellPtr.cpp - mozsearch

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/* -*- 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::ObjectValue(*obj).toGCCellPtr().kind() == JS::TraceKind::Object);

  CHECK(JS::GCCellPtr(str.get()));

  CHECK(JS::GCCellPtr(str.get()).kind() == JS::TraceKind::String);

  CHECK(JS::StringValue(str).toGCCellPtr().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)