1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
/*
* 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 java.io.IOException;
import java.io.NotSerializableException;
import java.io.ObjectOutputStream;
import jdk.nashorn.internal.codegen.CompileUnit;
import jdk.nashorn.internal.ir.annotations.Immutable;
import jdk.nashorn.internal.ir.visitor.NodeVisitor;
/**
* Node indicating code is split across classes.
*/
@Immutable
public class SplitNode extends LexicalContextStatement implements CompileUnitHolder {
private static final long serialVersionUID = 1L;
/** Split node method name. */
private final String name;
/** Compilation unit. */
private final CompileUnit compileUnit;
/** Body of split code. */
private final Block body;
/**
* Constructor
*
* @param name name of split node
* @param body body of split code
* @param compileUnit compile unit to use for the body
*/
public SplitNode(final String name, final Block body, final CompileUnit compileUnit) {
super(body.getFirstStatementLineNumber(), body.getToken(), body.getFinish());
this.name = name;
this.body = body;
this.compileUnit = compileUnit;
}
private SplitNode(final SplitNode splitNode, final Block body, final CompileUnit compileUnit) {
super(splitNode);
this.name = splitNode.name;
this.body = body;
this.compileUnit = compileUnit;
}
/**
* Get the body for this split node - i.e. the actual code it encloses
* @return body for split node
*/
public Block getBody() {
return body;
}
private SplitNode setBody(final LexicalContext lc, final Block body) {
if (this.body == body) {
return this;
}
return Node.replaceInLexicalContext(lc, this, new SplitNode(this, body, compileUnit));
}
@Override
public Node accept(final LexicalContext lc, final NodeVisitor<? extends LexicalContext> visitor) {
if (visitor.enterSplitNode(this)) {
return visitor.leaveSplitNode(setBody(lc, (Block)body.accept(visitor)));
}
return this;
}
@Override
public void toString(final StringBuilder sb, final boolean printType) {
sb.append("<split>(");
sb.append(compileUnit.getClass().getSimpleName());
sb.append(") ");
body.toString(sb, printType);
}
/**
* Get the name for this split node
* @return name
*/
public String getName() {
return name;
}
/**
* Get the compile unit for this split node
* @return compile unit
*/
@Override
public CompileUnit getCompileUnit() {
return compileUnit;
}
/**
* Set the compile unit for this split node
* @param lc lexical context
* @param compileUnit compile unit
* @return new node if changed, otherwise same node
*/
public SplitNode setCompileUnit(final LexicalContext lc, final CompileUnit compileUnit) {
if (this.compileUnit == compileUnit) {
return this;
}
return Node.replaceInLexicalContext(lc, this, new SplitNode(this, body, compileUnit));
}
private void writeObject(final ObjectOutputStream out) throws IOException {
// We are only serializing the AST after we run SplitIntoFunctions; no SplitNodes can remain for the
// serialization.
throw new NotSerializableException(getClass().getName());
}
}
|
