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Java example source code file (IndexNode.java)
The IndexNode.java Java example source code/* * Copyright (c) 2010, 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 jdk.nashorn.internal.ir; import jdk.nashorn.internal.ir.annotations.Immutable; import jdk.nashorn.internal.ir.visitor.NodeVisitor; /** * IR representation of an indexed access (brackets operator.) */ @Immutable public final class IndexNode extends BaseNode { /** Property index. */ private final Expression index; /** * Constructors * * @param token token * @param finish finish * @param base base node for access * @param index index for access */ public IndexNode(final long token, final int finish, final Expression base, final Expression index) { super(token, finish, base, false); this.index = index; } private IndexNode(final IndexNode indexNode, final Expression base, final Expression index, final boolean isFunction) { super(indexNode, base, isFunction); this.index = index; } @Override public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { if (visitor.enterIndexNode(this)) { return visitor.leaveIndexNode( setBase((Expression)base.accept(visitor)). setIndex((Expression)index.accept(visitor))); } return this; } @Override public void toString(final StringBuilder sb) { final boolean needsParen = tokenType().needsParens(base.tokenType(), true); if (needsParen) { sb.append('('); } base.toString(sb); if (needsParen) { sb.append(')'); } sb.append('['); index.toString(sb); sb.append(']'); } /** * Get the index expression for this IndexNode * @return the index */ public Expression getIndex() { return index; } private IndexNode setBase(final Expression base) { if (this.base == base) { return this; } return new IndexNode(this, base, index, isFunction()); } /** * Set the index expression for this node * @param index new index expression * @return a node equivalent to this one except for the requested change. */ public IndexNode setIndex(Expression index) { if(this.index == index) { return this; } return new IndexNode(this, base, index, isFunction()); } @Override public BaseNode setIsFunction() { if (isFunction()) { return this; } return new IndexNode(this, base, index, true); } } Other Java examples (source code examples)Here is a short list of links related to this Java IndexNode.java source code file: |
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