1/*
2 * Copyright (c) 2015, 2016, 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
26package jdk.nashorn.internal.ir;
27
28import java.util.Collections;
29import java.util.List;
30
31import jdk.nashorn.internal.codegen.types.Type;
32import jdk.nashorn.internal.ir.visitor.NodeVisitor;
33
34/**
35 * IR for CoverParenthesizedExpressionAndArrowParameterList, used only during parsing.
36 */
37public final class ExpressionList extends Expression {
38    private static final long serialVersionUID = 1L;
39
40    private final List<Expression> expressions;
41
42    /**
43     * Constructor.
44     *
45     * @param token token
46     * @param finish finish
47     * @param expressions expression
48     */
49    public ExpressionList(final long token, final int finish, final List<Expression> expressions) {
50        super(token, finish);
51        this.expressions = expressions;
52    }
53
54    /**
55     * Get the list of expressions.
56     *
57     * @return the list of expressions
58     */
59    public List<Expression> getExpressions() {
60        return Collections.unmodifiableList(expressions);
61    }
62
63    @Override
64    public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
65        throw new UnsupportedOperationException();
66    }
67
68    @Override
69    public Type getType() {
70        return null;
71    }
72
73    @Override
74    public void toString(final StringBuilder sb, final boolean printType) {
75        sb.append("(");
76        boolean first = true;
77        for (final Expression expression : expressions) {
78            if (first) {
79                first = false;
80            } else {
81                sb.append(", ");
82            }
83            expression.toString(sb, printType);
84        }
85        sb.append(")");
86    }
87}
88