blob: 632cc403eabb82df887d71610873f50c683e4d13 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
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.PsiExpression;
import com.intellij.psi.PsiReferenceExpression;
/**
* Filters expression nodes
*/
public class ExpressionFilter extends JavaElementVisitor implements NodeFilter {
protected boolean result;
@Override public void visitReferenceExpression(PsiReferenceExpression psiReferenceExpression) {
result = true;
}
@Override public void visitExpression(PsiExpression psiExpression) {
result = true;
}
private static class NodeFilterHolder {
private static final NodeFilter instance = new ExpressionFilter();
}
public static NodeFilter getInstance() {
return NodeFilterHolder.instance;
}
private ExpressionFilter() {
}
public boolean accepts(PsiElement element) {
result = false;
if (element!=null) element.accept(this);
return result;
}
}
|