/*

 * Copyright (c) 1994, 2003, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.

 */

package sun.tools.tree;

import sun.tools.java.*;

/**

 * WARNING: The contents of this source file are not part of any

 * supported API.  Code that depends on them does so at its own risk:

 * they are subject to change or removal without notice.

 */

public

class BinaryEqualityExpression extends BinaryExpression {

    /**

     * constructor

     */

    public BinaryEqualityExpression(int op, long where, Expression left, Expression right) {

        super(op, where, Type.tBoolean, left, right);

    }

    /**

     * Select the type

     */

    void selectType(Environment env, Context ctx, int tm) {

        Type t;

        if ((tm & TM_ERROR) != 0) {

            // who cares.  One of them is an error.

            return;

        } else if ((tm & (TM_CLASS | TM_ARRAY | TM_NULL)) != 0) {

            try {

                if (env.explicitCast(left.type, right.type) ||

                    env.explicitCast(right.type, left.type)) {

                    return;

                }

                env.error(where, "incompatible.type",

                          left.type, left.type, right.type);

            } catch (ClassNotFound e) {

                env.error(where, "class.not.found", e.name, opNames[op]);

            }

            return;

        } else if ((tm & TM_DOUBLE) != 0) {

            t = Type.tDouble;

        } else if ((tm & TM_FLOAT) != 0) {

            t = Type.tFloat;

        } else if ((tm & TM_LONG) != 0) {

            t = Type.tLong;

        } else if ((tm & TM_BOOLEAN) != 0) {

            t = Type.tBoolean;

        } else {

            t = Type.tInt;

        }

        left = convert(env, ctx, t, left);

        right = convert(env, ctx, t, right);

    }

}