Mercurial > hg > graal-jvmci-8
diff src/share/vm/classfile/defaultMethods.hpp @ 6934:4735d2c84362
7200776: Implement default methods in interfaces
Summary: Add generic type analysis and default method selection algorithms
Reviewed-by: coleenp, acorn
author | kamg |
---|---|
date | Thu, 11 Oct 2012 12:25:42 -0400 |
parents | |
children | 36b97be47bde |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/classfile/defaultMethods.hpp Thu Oct 11 12:25:42 2012 -0400 @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP +#define SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP + +#include "runtime/handles.hpp" +#include "utilities/growableArray.hpp" +#include "utilities/exceptions.hpp" + +class InstanceKlass; +class Symbol; +class Method; + +class DefaultMethods : AllStatic { + public: + + // Analyzes class and determines which default methods are inherited + // from interfaces (and has no other implementation). For each method + // (and each different signature the method could have), create an + // "overpass" method that is an instance method that redirects to the + // default method. Overpass methods are added to the methods lists for + // the class. + static void generate_default_methods( + InstanceKlass* klass, GrowableArray<Method*>* mirandas, TRAPS); + + + // Called during linking when an invokespecial to an direct interface + // method is found. Selects and returns a method if there is a unique + // default method in the 'super_iface' part of the hierarchy which is + // also a candidate default for 'this_klass'. Otherwise throws an AME. + static Method* find_super_default( + Klass* this_klass, Klass* super_iface, + Symbol* method_name, Symbol* method_sig, TRAPS); +}; + +#endif // SHARE_VM_CLASSFILE_DEFAULTMETHODS_HPP