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