| /* |
| * Copyright (c) 1994, 2013, 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.*; |
| import java.util.Hashtable; |
| |
| /** |
| * Parenthesized expressions. |
| * |
| * 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 ExprExpression extends UnaryExpression { |
| /** |
| * Constructor |
| */ |
| public ExprExpression(long where, Expression right) { |
| super(EXPR, where, right.type, right); |
| } |
| |
| /** |
| * Check a condition. We must pass it on to our unparenthesised form. |
| */ |
| public void checkCondition(Environment env, Context ctx, Vset vset, |
| Hashtable<Object, Object> exp, ConditionVars cvars) { |
| right.checkCondition(env, ctx, vset, exp, cvars); |
| type = right.type; |
| } |
| |
| /** |
| * Check the expression if it appears as an lvalue. |
| * We just pass it on to our unparenthesized subexpression. |
| * (Part of fix for 4090372) |
| */ |
| public Vset checkAssignOp(Environment env, Context ctx, |
| Vset vset, Hashtable<Object, Object> exp, Expression outside) { |
| vset = right.checkAssignOp(env, ctx, vset, exp, outside); |
| type = right.type; |
| return vset; |
| } |
| |
| /** |
| * Delegate to our subexpression. |
| * (Part of fix for 4090372) |
| */ |
| public FieldUpdater getUpdater(Environment env, Context ctx) { |
| return right.getUpdater(env, ctx); |
| } |
| |
| // Allow (x) = 9; |
| // |
| // I will hold off on this until I'm sure about it. Nobody's |
| // going to clammer for this one. |
| // |
| // public Vset checkLHS(Environment env, Context ctx, |
| // Vset vset, Hashtable<Object, Object> exp) { |
| // vset = right.check(env, ctx, vset, exp); |
| // type = right.type; |
| // return vset; |
| // } |
| |
| public boolean isNull() { |
| return right.isNull(); |
| } |
| |
| public boolean isNonNull() { |
| return right.isNonNull(); |
| } |
| |
| // Probably not necessary |
| public Object getValue() { |
| return right.getValue(); |
| } |
| |
| /** |
| * Delegate to our subexpression. |
| * See the comment in AddExpression#inlineValueSB() for |
| * information about this method. |
| */ |
| protected StringBuffer inlineValueSB(Environment env, |
| Context ctx, |
| StringBuffer buffer) { |
| return right.inlineValueSB(env, ctx, buffer); |
| } |
| |
| /** |
| * Select the type of the expression |
| */ |
| void selectType(Environment env, Context ctx, int tm) { |
| type = right.type; |
| } |
| |
| /** |
| * Simplify |
| */ |
| Expression simplify() { |
| return right; |
| } |
| } |