diff options
Diffstat (limited to 'java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/filters/ConstantFilter.java')
-rw-r--r-- | java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/filters/ConstantFilter.java | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/filters/ConstantFilter.java b/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/filters/ConstantFilter.java new file mode 100644 index 000000000000..401e3c15e365 --- /dev/null +++ b/java/structuralsearch-java/src/com/intellij/structuralsearch/impl/matcher/filters/ConstantFilter.java @@ -0,0 +1,38 @@ +package com.intellij.structuralsearch.impl.matcher.filters; + +import com.intellij.dupLocator.util.NodeFilter; +import com.intellij.psi.JavaElementVisitor; +import com.intellij.psi.PsiElement; +import com.intellij.psi.PsiLiteralExpression; + +/** + * Created by IntelliJ IDEA. + * User: Maxim.Mossienko + * Date: Apr 27, 2004 + * Time: 7:55:40 PM + * To change this template use File | Settings | File Templates. + */ +public class ConstantFilter extends JavaElementVisitor implements NodeFilter { + protected boolean result; + + @Override public void visitLiteralExpression(PsiLiteralExpression psiLiteral) { + result = true; + } + + private static class NodeFilterHolder { + private static final NodeFilter instance = new ConstantFilter(); + } + + public static NodeFilter getInstance() { + return NodeFilterHolder.instance; + } + + private ConstantFilter() { + } + + public boolean accepts(PsiElement element) { + result = false; + if (element!=null) element.accept(this); + return result; + } +} |