mbien commented on code in PR #5173:
URL: https://github.com/apache/netbeans/pull/5173#discussion_r1223861628
##########
java/java.editor.base/src/org/netbeans/modules/java/editor/base/semantic/UnusedDetector.java:
##########
@@ -597,5 +619,49 @@ private void handleDeclaration(TreePath path) {
}
}
}
+
+ @Override
+ public Void visitLiteral(LiteralTree node, Void p) {
+ if (node.getKind() == Kind.STRING_LITERAL) {
+ allStringLiterals.add((String) ((LiteralTree)
node).getValue());
+ }
+ return super.visitLiteral(node, p);
+ }
+
+ @Override
+ public Void visitMethodInvocation(MethodInvocationTree node, Void p) {
+ Element invoked = info.getTrees().getElement(new
TreePath(getCurrentPath(), node.getMethodSelect()));
+ if (invoked != null && invoked.getEnclosingElement() ==
methodHandlesLookup && node.getArguments().size() > 0) {
+ ExpressionTree clazz = node.getArguments().get(0);
+ Element lookupType = null;
+ if (clazz.getKind() == Kind.MEMBER_SELECT) {
+ MemberSelectTree mst = (MemberSelectTree) clazz;
+ if (mst.getIdentifier().contentEquals("class")) {
+ lookupType = info.getTrees().getElement(new
TreePath(new TreePath(getCurrentPath(), clazz), mst.getExpression()));
+ }
+ }
+ String lookupName = null;
+ if (node.getArguments().size() > 1) {
+ ExpressionTree name = node.getArguments().get(1);
+ if (name.getKind() == Kind.STRING_LITERAL) {
+ lookupName = (String) ((LiteralTree) name).getValue();
+ }
+ }
+ switch (invoked.getSimpleName().toString()) {
+ case "findStatic": case "findVirtual": case "findSpecial":
+ type2LookedUpMethods.computeIfAbsent(lookupType, t ->
new HashSet<>()).add(lookupName);
Review Comment:
nevermind, I believe the lambda is there to allocate the AL lazily. My
mistake.
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