| /* |
| * 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 for {@code with} statements. |
| */ |
| @Immutable |
| public final class WithNode extends LexicalContextStatement { |
| private static final long serialVersionUID = 1L; |
| |
| /** This expression. */ |
| private final Expression expression; |
| |
| /** Statements. */ |
| private final Block body; |
| |
| /** |
| * Constructor |
| * |
| * @param lineNumber Line number of the header |
| * @param token First token |
| * @param finish Character index of the last token |
| * @param expression With expression |
| * @param body Body of with node |
| */ |
| public WithNode(final int lineNumber, final long token, final int finish, final Expression expression, final Block body) { |
| super(lineNumber, token, finish); |
| this.expression = expression; |
| this.body = body; |
| } |
| |
| private WithNode(final WithNode node, final Expression expression, final Block body) { |
| super(node); |
| this.expression = expression; |
| this.body = body; |
| } |
| |
| /** |
| * Assist in IR navigation. |
| * |
| * @param visitor IR navigating visitor. |
| */ |
| @Override |
| public Node accept(final LexicalContext lc, final NodeVisitor<? extends LexicalContext> visitor) { |
| if (visitor.enterWithNode(this)) { |
| return visitor.leaveWithNode( |
| setExpression(lc, (Expression)expression.accept(visitor)). |
| setBody(lc, (Block)body.accept(visitor))); |
| } |
| return this; |
| } |
| |
| @Override |
| public boolean isTerminal() { |
| return body.isTerminal(); |
| } |
| |
| @Override |
| public void toString(final StringBuilder sb, final boolean printType) { |
| sb.append("with ("); |
| expression.toString(sb, printType); |
| sb.append(')'); |
| } |
| |
| /** |
| * Get the body of this WithNode |
| * @return the body |
| */ |
| public Block getBody() { |
| return body; |
| } |
| |
| /** |
| * Reset the body of this with node |
| * @param lc lexical context |
| * @param body new body |
| * @return new or same withnode |
| */ |
| public WithNode setBody(final LexicalContext lc, final Block body) { |
| if (this.body == body) { |
| return this; |
| } |
| return Node.replaceInLexicalContext(lc, this, new WithNode(this, expression, body)); |
| } |
| |
| /** |
| * Get the expression of this WithNode |
| * @return the expression |
| */ |
| public Expression getExpression() { |
| return expression; |
| } |
| |
| /** |
| * Reset the expression of this with node |
| * @param lc lexical context |
| * @param expression new expression |
| * @return new or same withnode |
| */ |
| public WithNode setExpression(final LexicalContext lc, final Expression expression) { |
| if (this.expression == expression) { |
| return this; |
| } |
| return Node.replaceInLexicalContext(lc, this, new WithNode(this, expression, body)); |
| } |
| } |
| |