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drjava/dynamicjava/src/koala/dynamicjava/tree/Node.java at master · kauffman77/drjava · GitHub
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dynamicjava
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koala
/
dynamicjava
/
tree
/
Node.java
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drjava
/
dynamicjava
/
src
/
koala
/
dynamicjava
/
tree
/
Node.java
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/*BEGIN_COPYRIGHT_BLOCK
*
* Copyright (c) 2001-2010, JavaPLT group at Rice University (drjava@rice.edu)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the names of DrJava, the JavaPLT group, Rice University, nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software is Open Source Initiative approved Open Source Software.
* Open Source Initative Approved is a trademark of the Open Source Initiative.
*
* This file is part of DrJava. Download the current version of this project
* from http://www.drjava.org/ or http://sourceforge.net/projects/drjava/
*
* END_COPYRIGHT_BLOCK*/
/*
* DynamicJava - Copyright (C) 1999-2001
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL DYADE BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Dyade shall not be
* used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from
* Dyade.
*
*/
package
koala
.
dynamicjava
.
tree
;
import
java
.
util
.*;
import
koala
.
dynamicjava
.
tree
.
visitor
.*;
/**
* This class represents the nodes of the syntax tree
*
* @author Stephane Hillion
* @version 1.1 - 1999/11/12
*/
public
abstract
class
Node
implements
SourceInfo
.
Wrapper
{
private
final
Map
<
String
,
Object
>
properties
;
private
SourceInfo
sourceInfo
;
protected
Node
(
SourceInfo
si
) {
assert
si
!=
null
;
sourceInfo
=
si
;
properties
=
new
HashMap
<
String
,
Object
>();
}
/** Returns the sourceInfo. */
public
SourceInfo
getSourceInfo
() {
return
sourceInfo
;
}
/**
* Sets the filename
*/
public
void
setSourceInfo
(
SourceInfo
si
) {
assert
si
!=
null
;
sourceInfo
=
si
;
}
// Properties support //////////////////////////////////////////////////
/**
* Sets the value of a property
* @param name the property name
* @param value the new value to set
*/
public
void
setProperty
(
String
name
,
Object
value
) {
properties
.
put
(
name
,
value
);
}
/**
* Returns the value of a property
* @param name the property name
* @return null if the property was not previously set
*/
public
Object
getProperty
(
String
name
) {
if
(!
properties
.
containsKey
(
name
)) {
throw
new
IllegalStateException
(
"Property '"
+
name
+
"' is not initialized"
);
}
return
properties
.
get
(
name
);
}
/**
* Returns the defined properties for this node.
* @return a set of string
*/
public
Set
<
String
>
getProperties
() {
return
properties
.
keySet
();
}
/**
* Returns true if a property is defined for this node
* @param name the name of the property
*/
public
boolean
hasProperty
(
String
name
) {
return
properties
.
containsKey
(
name
);
}
/** Change the names of all properties by prefixing each name with the given string. */
public
void
archiveProperties
(
String
prefix
) {
Map
<
String
,
Object
>
newProps
=
new
HashMap
<
String
,
Object
>();
for
(
Map
.
Entry
<
String
,
Object
>
e
:
properties
.
entrySet
()) {
newProps
.
put
(
prefix
+
e
.
getKey
(),
e
.
getValue
()); }
properties
.
clear
();
properties
.
putAll
(
newProps
);
}
/**
* Allows a visitor to traverse the tree
* @param visitor the visitor to accept
*/
public
abstract
<
T
>
T
acceptVisitor
(
Visitor
<
T
>
visitor
);
}
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