Mercurial > jdk8-mips64-public > nashorn / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/check_nashorn.js	Fri Sep 04 17:17:44 2015 +0530
     1.3 @@ -0,0 +1,45 @@
     1.4 +/*
     1.5 + * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
     1.6 + *
     1.7 + * Redistribution and use in source and binary forms, with or without
     1.8 + * modification, are permitted provided that the following conditions
     1.9 + * are met:
    1.10 + *
    1.11 + *   - Redistributions of source code must retain the above copyright
    1.12 + *     notice, this list of conditions and the following disclaimer.
    1.13 + *
    1.14 + *   - Redistributions in binary form must reproduce the above copyright
    1.15 + *     notice, this list of conditions and the following disclaimer in the
    1.16 + *     documentation and/or other materials provided with the distribution.
    1.17 + *
    1.18 + *   - Neither the name of Oracle nor the names of its
    1.19 + *     contributors may be used to endorse or promote products derived
    1.20 + *     from this software without specific prior written permission.
    1.21 + *
    1.22 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    1.23 + * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    1.24 + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    1.25 + * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    1.26 + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    1.27 + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    1.28 + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    1.29 + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    1.30 + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    1.31 + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    1.32 + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.33 + */
    1.34 +
    1.35 +// check if script is being run using nashorn script engine
    1.36 +function isNashorn() {
    1.37 +  try {
    1.38 +    // "engine" variable is of type javax.script.ScriptEngine is defined
    1.39 +    // by nashorn jsr-223 engine. Check the name of the engine from
    1.40 +    // javax.script.ScriptEngineFactory associated
    1.41 +    
    1.42 +    return engine.factory.engineName.contains("Nashorn");
    1.43 +  } catch (e) {
    1.44 +    // if engine or any of the properties are undefined
    1.45 +    // then script is not being run using nashorn.
    1.46 +    return false;
    1.47 +  }
    1.48 +}