com.strobel.decompiler.languages.java.ast.NullReferenceExpression Maven / Gradle / Ivy
/*
* NullReferenceExpression.java
*
* Copyright (c) 2013 Mike Strobel
*
* This source code is based on Mono.Cecil from Jb Evain, Copyright (c) Jb Evain;
* and ILSpy/ICSharpCode from SharpDevelop, Copyright (c) AlphaSierraPapa.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0.
* A copy of the license can be found in the License.html file at the root of this distribution.
* By using this source code in any fashion, you are agreeing to be bound by the terms of the
* Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*/
package com.strobel.decompiler.languages.java.ast;
import com.strobel.core.VerifyArgument;
import com.strobel.decompiler.languages.TextLocation;
import com.strobel.decompiler.patterns.INode;
import com.strobel.decompiler.patterns.Match;
public final class NullReferenceExpression extends Expression {
private final static String NULL_TEXT = "null";
private TextLocation _startLocation;
private TextLocation _endLocation;
public NullReferenceExpression( final int offset) {
this( offset, TextLocation.EMPTY);
}
public NullReferenceExpression( final int offset, final TextLocation startLocation) {
super( offset);
_startLocation = VerifyArgument.notNull(startLocation, "startLocation");
_endLocation = new TextLocation(startLocation.line(), startLocation.column() + NULL_TEXT.length());
}
@Override
public TextLocation getStartLocation() {
return _startLocation;
}
@Override
public TextLocation getEndLocation() {
return _endLocation;
}
public void setStartLocation(final TextLocation startLocation) {
_startLocation = VerifyArgument.notNull(startLocation, "startLocation");
_endLocation = new TextLocation(startLocation.line(), startLocation.column() + NULL_TEXT.length());
}
@Override
public R acceptVisitor(final IAstVisitor visitor, final T data) {
return visitor.visitNullReferenceExpression(this, data);
}
@Override
public boolean matches(final INode other, final Match match) {
return other instanceof NullReferenceExpression;
}
}