com.strobel.decompiler.patterns.ParameterReferenceNode Maven / Gradle / Ivy
/*
* ParameterReferenceNode.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.patterns;
import com.strobel.decompiler.ast.Variable;
import com.strobel.decompiler.languages.java.ast.IdentifierExpression;
import com.strobel.decompiler.languages.java.ast.Keys;
public final class ParameterReferenceNode extends Pattern {
private final int _parameterPosition;
private final String _groupName;
public ParameterReferenceNode(final int parameterPosition) {
_parameterPosition = parameterPosition;
_groupName = null;
}
public ParameterReferenceNode(final int parameterPosition, final String groupName) {
_parameterPosition = parameterPosition;
_groupName = groupName;
}
public final String getGroupName() {
return _groupName;
}
public final int getParameterPosition() {
return _parameterPosition;
}
@Override
public boolean matches(final INode other, final Match match) {
if (other instanceof IdentifierExpression) {
final IdentifierExpression identifier = (IdentifierExpression) other;
final Variable variable = identifier.getUserData(Keys.VARIABLE);
if (variable != null &&
variable.isParameter() &&
variable.getOriginalParameter().getPosition() == _parameterPosition) {
if (_groupName != null) {
match.add(_groupName, identifier);
}
return true;
}
}
return false;
}
}