com.strobel.decompiler.patterns.LeftmostBinaryOperandNode Maven / Gradle / Ivy
/*
* LeftmostBinaryOperandNode.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.core.VerifyArgument;
import com.strobel.decompiler.languages.java.ast.BinaryOperatorExpression;
import com.strobel.decompiler.languages.java.ast.BinaryOperatorType;
public class LeftmostBinaryOperandNode extends Pattern {
private final boolean _matchWithoutOperator;
private final BinaryOperatorType _operatorType;
private final INode _operandPattern;
public LeftmostBinaryOperandNode(final INode pattern) {
this(pattern, BinaryOperatorType.ANY, false);
}
public LeftmostBinaryOperandNode(final INode pattern, final BinaryOperatorType type, final boolean matchWithoutOperator) {
_matchWithoutOperator = matchWithoutOperator;
_operatorType = VerifyArgument.notNull(type, "type");
_operandPattern = VerifyArgument.notNull(pattern, "pattern");
}
public final INode getOperandPattern() {
return _operandPattern;
}
@Override
public boolean matches(final INode other, final Match match) {
if (_matchWithoutOperator || other instanceof BinaryOperatorExpression) {
INode current = other;
while (current instanceof BinaryOperatorExpression &&
(_operatorType == BinaryOperatorType.ANY ||
((BinaryOperatorExpression) current).getOperator() == _operatorType)) {
current = ((BinaryOperatorExpression) current).getLeft();
}
return current != null && _operandPattern.matches(current, match);
}
return false;
}
}