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/*
* Copyright (c) 2012-2016 The ANTLR Project. All rights reserved.
* Use of this file is governed by the BSD 3-clause license that
* can be found in the LICENSE.txt file in the project root.
*/
package org.antlr.v4.runtime.tree.pattern;
/**
* Represents a span of raw text (concrete syntax) between tags in a tree
* pattern string.
*/
class TextChunk extends Chunk {
/**
* This is the backing field for {@link #getText}.
*/
private final String text;
/**
* Constructs a new instance of {@link TextChunk} with the specified text.
*
* @param text The text of this chunk.
* @exception IllegalArgumentException if {@code text} is {@code null}.
*/
public TextChunk(String text) {
if (text == null) {
throw new IllegalArgumentException("text cannot be null");
}
this.text = text;
}
/**
* Gets the raw text of this chunk.
*
* @return The text of the chunk.
*/
public final String getText() {
return text;
}
/**
* {@inheritDoc}
*
* <p>The implementation for {@link TextChunk} returns the result of
* {@link #getText()} in single quotes.</p>
*/
@Override
public String toString() {
return "'"+text+"'";
}
}
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