0N/A/*
2362N/A * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/Apackage sun.tools.tree;
0N/A
0N/Aimport sun.tools.java.*;
0N/Aimport java.util.Hashtable;
0N/A
0N/A/**
0N/A * WARNING: The contents of this source file are not part of any
0N/A * supported API. Code that depends on them does so at its own risk:
0N/A * they are subject to change or removal without notice.
0N/A */
0N/Aabstract public
0N/Aclass BinaryLogicalExpression extends BinaryExpression {
0N/A /**
0N/A * constructor
0N/A */
0N/A public BinaryLogicalExpression(int op, long where, Expression left, Expression right) {
0N/A super(op, where, Type.tBoolean, left, right);
0N/A }
0N/A
0N/A /**
0N/A * Check a binary expression
0N/A */
0N/A public Vset checkValue(Environment env, Context ctx,
0N/A Vset vset, Hashtable exp) {
0N/A ConditionVars cvars = new ConditionVars();
0N/A // evaluate the logical expression, determining which variables are
0N/A // set if the resulting value is true or false
0N/A checkCondition(env, ctx, vset, exp, cvars);
0N/A // return the intersection.
0N/A return cvars.vsTrue.join(cvars.vsFalse);
0N/A }
0N/A
0N/A /*
0N/A * Every subclass of this class must define a genuine implementation
0N/A * of this method. It cannot inherit the method of Expression.
0N/A */
0N/A abstract
0N/A public void checkCondition(Environment env, Context ctx, Vset vset,
0N/A Hashtable exp, ConditionVars cvars);
0N/A
0N/A
0N/A /**
0N/A * Inline
0N/A */
0N/A public Expression inline(Environment env, Context ctx) {
0N/A left = left.inlineValue(env, ctx);
0N/A right = right.inlineValue(env, ctx);
0N/A return this;
0N/A }
0N/A}