rt/vm/src/test/java/org/apidesign/vm4brwsr/InvokeDynamic.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Sat, 09 Aug 2014 10:42:22 +0200
branchjdk8
changeset 1644 d02324a82d80
permissions -rw-r--r--
A way to test invokeDynamic on JDK7 inspired by https://code.google.com/p/indy-maven-plugin/
     1 /**
     2  * Back 2 Browser Bytecode Translator
     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
     4  *
     5  * This program is free software: you can redistribute it and/or modify
     6  * it under the terms of the GNU General Public License as published by
     7  * the Free Software Foundation, version 2 of the License.
     8  *
     9  * This program is distributed in the hope that it will be useful,
    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12  * GNU General Public License for more details.
    13  *
    14  * You should have received a copy of the GNU General Public License
    15  * along with this program. Look for COPYING file in the top folder.
    16  * If not, see http://opensource.org/licenses/GPL-2.0.
    17  */
    18 package org.apidesign.vm4brwsr;
    19 
    20 import java.lang.invoke.CallSite;
    21 import java.lang.invoke.ConstantCallSite;
    22 import java.lang.invoke.MethodHandles;
    23 import java.lang.invoke.MethodType;
    24 
    25 public class InvokeDynamic {
    26 
    27     public static String dynamicSay() {
    28         return TEST_dynamic_boot1(new InvokeDynamic());
    29     }
    30 
    31     private static String TEST_dynamic_boot1(InvokeDynamic instance) {
    32         throw new IllegalStateException("Can't touch this");
    33     }
    34 
    35     public static CallSite boot1(MethodHandles.Lookup lookup, String name, MethodType type) {
    36         try {
    37             return new ConstantCallSite(lookup.findVirtual(InvokeDynamic.class, "instance_sayHello", MethodType.methodType(String.class)));
    38         } catch (NoSuchMethodException | IllegalAccessException e) {
    39             throw new IllegalStateException(e);
    40         }
    41     }
    42 
    43     public String instance_sayHello() {
    44         return "Hello from Dynamic!";
    45     }
    46 }