FunctionExpressionTreeImpl.java revision 1204:9597425b6b38 
1/*
2 * Copyright (c) 2015, 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
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24 */
25
26package jdk.nashorn.api.tree;
27
28import java.util.List;
29import jdk.nashorn.internal.ir.FunctionNode;
30
31final class FunctionExpressionTreeImpl extends ExpressionTreeImpl
32    implements FunctionExpressionTree {
33    private final FunctionNode funcNode;
34    private final String funcName;
35    private final List<? extends ExpressionTree> params;
36    private final BlockTree body;
37
38    FunctionExpressionTreeImpl(final FunctionNode node,
39            final List<? extends ExpressionTree> params,
40            final BlockTree body) {
41        super(node);
42        funcNode = node;
43        assert !funcNode.isDeclared() : "function expression expected";
44
45        final FunctionNode.Kind kind = node.getKind();
46        if (node.isAnonymous() || kind == FunctionNode.Kind.GETTER || kind == FunctionNode.Kind.SETTER) {
47            funcName = null;
48        } else {
49            funcName = node.getIdent().getName();
50        }
51
52        this.params = params;
53        this.body = body;
54    }
55
56    @Override
57    public Tree.Kind getKind() {
58        return Tree.Kind.FUNCTION_EXPRESSION;
59    }
60
61    @Override
62    public String getName() {
63        return funcName;
64    }
65
66    @Override
67    public List<? extends ExpressionTree> getParameters() {
68        return params;
69    }
70
71    @Override
72    public BlockTree getBody() {
73        return body;
74    }
75
76    @Override
77    public boolean isStrict() {
78        return funcNode.isStrict();
79    }
80
81    @Override
82    public <R,D> R accept(TreeVisitor<R,D> visitor, D data) {
83        return visitor.visitFunctionExpression(this, data);
84    }
85}
86