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package com.intellij.structuralsearch.impl.matcher.filters;
import com.intellij.dupLocator.util.NodeFilter;
import com.intellij.psi.JavaElementVisitor;
import com.intellij.psi.PsiBlockStatement;
import com.intellij.psi.PsiCodeBlock;
import com.intellij.psi.PsiElement;
/**
* Filters block related nodes
*/
public class BlockFilter extends JavaElementVisitor implements NodeFilter {
protected boolean result;
public boolean accepts(PsiElement element) {
result = false;
if (element!=null) element.accept(this);
return result;
}
@Override
public void visitBlockStatement(PsiBlockStatement psiBlockStatement) {
result = true;
}
@Override
public void visitCodeBlock(PsiCodeBlock psiCodeBlock) {
result = true;
}
private BlockFilter() {
}
private static class NodeFilterHolder {
private static final NodeFilter instance = new BlockFilter();
}
public static NodeFilter getInstance() {
return NodeFilterHolder.instance;
}
}
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