aoqi@0: /*
aoqi@0:  * Copyright (c) 2011, 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: import java.lang.annotation.ElementType;
aoqi@0: import java.lang.annotation.Target;
aoqi@0: 
aoqi@0: @Target({ElementType.METHOD, ElementType.CONSTRUCTOR})
aoqi@0: @interface Candidate {
aoqi@0:     /**
aoqi@0:      * the candidate position (line/col of the method call for which this candidate
aoqi@0:      * is a potential overload candidate)
aoqi@0:      */
aoqi@0:     Pos pos() default @Pos(userDefined=false);
aoqi@0:     /**
aoqi@0:      * resolution phases for which this candidate is applicable
aoqi@0:      */
aoqi@0:     Phase[] applicable() default { };
aoqi@0:     /**
aoqi@0:      * is this candidate the most specific (in the resolution phases for which it
aoqi@0:      * is also applicable)
aoqi@0:      */
aoqi@0:     boolean mostSpecific() default false;
aoqi@0:     /**
aoqi@0:      * this candidate inferred signature (in the resolution phases for which it
aoqi@0:      * is also applicable, in case it corresponds to a generic method)
aoqi@0:      */
aoqi@0:     String sig() default "";
aoqi@0: }
aoqi@0: 
aoqi@0: enum Phase {
aoqi@0:     BASIC("BASIC"),
aoqi@0:     BOX("BOX"),
aoqi@0:     VARARGS("VARARITY");
aoqi@0: 
aoqi@0:     final String javacString;
aoqi@0: 
aoqi@0:     private Phase(String javacString) {
aoqi@0:         this.javacString = javacString;
aoqi@0:     }
aoqi@0: 
aoqi@0:     static Phase fromString(String s) {
aoqi@0:         for (Phase phase : Phase.values()) {
aoqi@0:             if (phase.javacString.equals(s)) {
aoqi@0:                 return phase;
aoqi@0:             }
aoqi@0:         }
aoqi@0:         throw new AssertionError("Invalid resolution phase string " + s);
aoqi@0:     }
aoqi@0: }