michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "jsapi-tests/tests.h"
michael@0: 
michael@0: /*
michael@0:  * Bug 689101 - jsval is technically a non-POD type because it has a private
michael@0:  * data member. On gcc, this doesn't seem to matter. On MSVC, this prevents
michael@0:  * returning a jsval from a function between C and C++ because it will use a
michael@0:  * retparam in C++ and a direct return value in C.
michael@0:  *
michael@0:  * Bug 712289 - jsval alignment was different on 32-bit platforms between C and
michael@0:  * C++ because the default alignments of js::Value and jsval_layout differ.
michael@0:  */
michael@0: 
michael@0: extern "C" {
michael@0: 
michael@0: extern bool
michael@0: C_ValueToObject(JSContext *cx, jsval v, JSObject **obj);
michael@0: 
michael@0: extern jsval
michael@0: C_GetEmptyStringValue(JSContext *cx);
michael@0: 
michael@0: extern size_t
michael@0: C_jsvalAlignmentTest();
michael@0: 
michael@0: }
michael@0: 
michael@0: BEGIN_TEST(testValueABI_retparam)
michael@0: {
michael@0:     JS::RootedObject obj(cx, JS::CurrentGlobalOrNull(cx));
michael@0:     jsval v = OBJECT_TO_JSVAL(obj);
michael@0:     obj = nullptr;
michael@0:     CHECK(C_ValueToObject(cx, v, obj.address()));
michael@0:     bool equal;
michael@0:     CHECK(JS_StrictlyEqual(cx, v, OBJECT_TO_JSVAL(obj), &equal));
michael@0:     CHECK(equal);
michael@0: 
michael@0:     v = C_GetEmptyStringValue(cx);
michael@0:     CHECK(JSVAL_IS_STRING(v));
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: END_TEST(testValueABI_retparam)
michael@0: 
michael@0: BEGIN_TEST(testValueABI_alignment)
michael@0: {
michael@0:     typedef struct { char c; jsval v; } AlignTest;
michael@0:     CHECK(C_jsvalAlignmentTest() == sizeof(AlignTest));
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: END_TEST(testValueABI_alignment)