1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/script/basic/NASHORN-760.js Wed Apr 27 01:36:41 2016 +0800
1.3 @@ -0,0 +1,54 @@
1.4 +/*
1.5 + * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/**
1.28 + * NASHORN-111 : ClassCastException from JSON.stringify
1.29 + *
1.30 + * @test
1.31 + * @run
1.32 + */
1.33 +// problem 1
1.34 +// the conversions in TernaryNode are not necessary, but they should not cause problems. They did
1.35 +// this was because the result of Global.allocate(Object[])Object which returns a NativeObject.
1.36 +// was tracked as an object type on our stack. The type system did not recognize this as an array.
1.37 +// Then the explicit conversions became "convert NativeArray->Object[]" which is a checkccast Object[]
1.38 +// which naturally failed.
1.39 +
1.40 +// I pushed the appropriate arraytype on the stack for Global.allocate.
1.41 +
1.42 +// I also removed the conversions in CodeGen, all conversions should be done in Lower, as
1.43 +// NASHORN-706 states.
1.44 +
1.45 +var silent = false;
1.46 +var stdio = silent ? ['pipe', 'pipe', 'pipe', 'ipc'] : [0, 1, 2, 'ipc'];
1.47 +
1.48 +// This made the test pass, but it's still not correct to pick widest types for array
1.49 +// and primitives. Widest(Object[], int) gave us Object[] which makes no sense. This is used
1.50 +// by lower to type the conversions, so function b below also failed until I made a change
1.51 +// ty type widest to actually return the widest common denominator, if both aren't arrays
1.52 +
1.53 +function b() {
1.54 + var silent2 = false;
1.55 + var stdio2 = silent2 ? [1,2,3] : 17;
1.56 +}
1.57 +
