Showing the changes to java/pkg/sun/tools/tree/ExprExpression.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. | |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 | + * | |
| 5 | + * This code is free software; you can redistribute it and/or modify it | |
| 6 | + * under the terms of the GNU General Public License version 2 only, as | |
| 7 | + * published by the Free Software Foundation. Oracle designates this | |
| 8 | + * particular file as subject to the "Classpath" exception as provided | |
| 9 | + * by Oracle in the LICENSE file that accompanied this code. | |
| 10 | + * | |
| 11 | + * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 | + * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 | + * accompanied this code). | |
| 16 | + * | |
| 17 | + * You should have received a copy of the GNU General Public License version | |
| 18 | + * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 | + * | |
| 21 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 | + * or visit www.oracle.com if you need additional information or have any | |
| 23 | + * questions. | |
| 24 | + */ | |
| 25 | + | |
| 26 | +package sun.tools.tree; | |
| 27 | + | |
| 28 | +import sun.tools.java.*; | |
| 29 | +import java.util.Hashtable; | |
| 30 | + | |
| 31 | +/** | |
| 32 | + * Parenthesised expressions. | |
| 33 | + * | |
| 34 | + * WARNING: The contents of this source file are not part of any | |
| 35 | + * supported API. Code that depends on them does so at its own risk: | |
| 36 | + * they are subject to change or removal without notice. | |
| 37 | + */ | |
| 38 | + | |
| 39 | +public | |
| 40 | +class ExprExpression extends UnaryExpression { | |
| 41 | + /** | |
| 42 | + * Constructor | |
| 43 | + */ | |
| 44 | + public ExprExpression(long where, Expression right) { | |
| 45 | + super(EXPR, where, right.type, right); | |
| 46 | + } | |
| 47 | + | |
| 48 | + /** | |
| 49 | + * Check a condition. We must pass it on to our unparenthesised form. | |
| 50 | + */ | |
| 51 | + public void checkCondition(Environment env, Context ctx, Vset vset, | |
| 52 | + Hashtable exp, ConditionVars cvars) { | |
| 53 | + right.checkCondition(env, ctx, vset, exp, cvars); | |
| 54 | + type = right.type; | |
| 55 | + } | |
| 56 | + | |
| 57 | + /** | |
| 58 | + * Check the expression if it appears as an lvalue. | |
| 59 | + * We just pass it on to our unparenthesized subexpression. | |
| 60 | + * (Part of fix for 4090372) | |
| 61 | + */ | |
| 62 | + public Vset checkAssignOp(Environment env, Context ctx, | |
| 63 | + Vset vset, Hashtable exp, Expression outside) { | |
| 64 | + vset = right.checkAssignOp(env, ctx, vset, exp, outside); | |
| 65 | + type = right.type; | |
| 66 | + return vset; | |
| 67 | + } | |
| 68 | + | |
| 69 | + /** | |
| 70 | + * Delegate to our subexpression. | |
| 71 | + * (Part of fix for 4090372) | |
| 72 | + */ | |
| 73 | + public FieldUpdater getUpdater(Environment env, Context ctx) { | |
| 74 | + return right.getUpdater(env, ctx); | |
| 75 | + } | |
| 76 | + | |
| 77 | + // Allow (x) = 9; | |
| 78 | + // | |
| 79 | + // I will hold off on this until I'm sure about it. Nobody's | |
| 80 | + // going to clammer for this one. | |
| 81 | + // | |
| 82 | + // public Vset checkLHS(Environment env, Context ctx, | |
| 83 | + // Vset vset, Hashtable exp) { | |
| 84 | + // vset = right.check(env, ctx, vset, exp); | |
| 85 | + // type = right.type; | |
| 86 | + // return vset; | |
| 87 | + // } | |
| 88 | + | |
| 89 | + public boolean isNull() { | |
| 90 | + return right.isNull(); | |
| 91 | + } | |
| 92 | + | |
| 93 | + public boolean isNonNull() { | |
| 94 | + return right.isNonNull(); | |
| 95 | + } | |
| 96 | + | |
| 97 | + // Probably not necessary | |
| 98 | + public Object getValue() { | |
| 99 | + return right.getValue(); | |
| 100 | + } | |
| 101 | + | |
| 102 | + /** | |
| 103 | + * Delegate to our subexpression. | |
| 104 | + * See the comment in AddExpression#inlineValueSB() for | |
| 105 | + * information about this method. | |
| 106 | + */ | |
| 107 | + protected StringBuffer inlineValueSB(Environment env, | |
| 108 | + Context ctx, | |
| 109 | + StringBuffer buffer) { | |
| 110 | + return right.inlineValueSB(env, ctx, buffer); | |
| 111 | + } | |
| 112 | + | |
| 113 | + /** | |
| 114 | + * Select the type of the expression | |
| 115 | + */ | |
| 116 | + void selectType(Environment env, Context ctx, int tm) { | |
| 117 | + type = right.type; | |
| 118 | + } | |
| 119 | + | |
| 120 | + /** | |
| 121 | + * Simplify | |
| 122 | + */ | |
| 123 | + Expression simplify() { | |
| 124 | + return right; | |
| 125 | + } | |
| 126 | +} | |