com.strobel.decompiler.patterns.Choice Maven / Gradle / Ivy
/*
* Choice.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.annotations.NotNull;
import com.strobel.core.VerifyArgument;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
public final class Choice extends Pattern implements Iterable {
private final ArrayList _alternatives = new ArrayList<>();
public Choice() {
}
public Choice(final INode... alternatives) {
Collections.addAll(_alternatives, VerifyArgument.notNull(alternatives, "alternatives"));
}
public final void add(final INode alternative) {
_alternatives.add(VerifyArgument.notNull(alternative, "alternative"));
}
public final void add(final String name, final INode alternative) {
_alternatives.add(new NamedNode(name, VerifyArgument.notNull(alternative, "alternative")));
}
@NotNull
@Override
public final Iterator iterator() {
return _alternatives.iterator();
}
@Override
public final boolean matches(final INode other, final Match match) {
final int checkpoint = match.getCheckPoint();
for (final INode alternative : _alternatives) {
if (alternative.matches(other, match)) {
return true;
}
match.restoreCheckPoint(checkpoint);
}
return false;
}
}