aoqi@0: /*
aoqi@0:  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  * 
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  * 
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  * 
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  * 
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: /**
aoqi@0:  * NASHORN-653 : Various problems with isTerminal and dead code generation from ASM
aoqi@0:  *
aoqi@0:  * @test
aoqi@0:  * @run
aoqi@0:  */
aoqi@0: 
aoqi@0: var script = "   \
aoqi@0: function a() {   \
aoqi@0:     return true; \
aoqi@0: }                \
aoqi@0:                  \
aoqi@0: function b() {   \
aoqi@0:     while (x) {      \
aoqi@0: 	return true; \
aoqi@0:     }                \
aoqi@0: }                    \
aoqi@0:                      \
aoqi@0: function c() {       \
aoqi@0:     while (true) {   \
aoqi@0: 	return true; \
aoqi@0:     }                \
aoqi@0:  }                   \
aoqi@0:                      \
aoqi@0: function d() {       \
aoqi@0:     do {             \
aoqi@0: 	return true; \
aoqi@0:     } while (x);     \
aoqi@0: } \
aoqi@0: \
aoqi@0: function f() {       \
aoqi@0:     for (;;) {       \
aoqi@0: 	return true; \
aoqi@0:     } \
aoqi@0: } \
aoqi@0: \
aoqi@0: function e() { \
aoqi@0:     for (;;) { \
aoqi@0: 	return true; \
aoqi@0:     } \
aoqi@0: } \
aoqi@0: \
aoqi@0: function g() { \
aoqi@0:     for(;;) { \
aoqi@0: 	print('goes on and on and on ... '); \
aoqi@0:     } \
aoqi@0:     print('x'); \
aoqi@0: } \
aoqi@0: ";
aoqi@0: 
aoqi@0: function runScriptEngine(opts, code) {
aoqi@0:     var imports = new JavaImporter(
aoqi@0:         Packages.jdk.nashorn.api.scripting,
aoqi@0:         java.io, java.lang, java.util);
aoqi@0: 
aoqi@0:     with(imports) {
aoqi@0:         var fac = new NashornScriptEngineFactory();
aoqi@0:         // get current System.err
aoqi@0:         var oldErr = System.err;
aoqi@0:         var baos = new ByteArrayOutputStream();
aoqi@0:         var newErr = new PrintStream(baos);
aoqi@0:         try {
aoqi@0:             // set new standard err
aoqi@0:             System.setErr(newErr);
aoqi@0:             var engine = fac.getScriptEngine(Java.to(opts, "java.lang.String[]"));
aoqi@0:             engine.eval(code);
aoqi@0:             newErr.flush();
aoqi@0:             return new java.lang.String(baos.toByteArray());
aoqi@0:         } finally {
aoqi@0:             // restore System.err to old value
aoqi@0:             System.setErr(oldErr);
aoqi@0:         }
aoqi@0:     }
aoqi@0: }
aoqi@0: 
aoqi@0: var result = runScriptEngine([ "--print-code" ], script);
aoqi@0: 
aoqi@0: if (result.indexOf("NOP") != -1) {
aoqi@0:     fail("ASM genenerates NOP*/ATHROW sequences - dead code is still in the script");
aoqi@0: }