mbien commented on code in PR #7548:
URL: https://github.com/apache/netbeans/pull/7548#discussion_r1688736613
##########
java/java.hints/src/org/netbeans/modules/java/hints/bugs/Unused.java:
##########
@@ -52,7 +52,12 @@ public class Unused {
@BooleanOption(displayName="#LBL_UnusedPackagePrivate",
tooltip="#TP_UnusedPackagePrivate",
defaultValue=DETECT_UNUSED_PACKAGE_PRIVATE_DEFAULT)
public static final String DETECT_UNUSED_PACKAGE_PRIVATE =
"detect.unused.package.private";
- @TriggerTreeKind(Kind.COMPILATION_UNIT)
+ @TriggerTreeKind({
+ //class-like kinds:
+ Kind.ANNOTATION_TYPE, Kind.CLASS, Kind.ENUM, Kind.INTERFACE,
Kind.RECORD,
+ Kind.VARIABLE,
+ Kind.METHOD
+ })
public static List<ErrorDescription> unused(HintContext ctx) {
Review Comment:
the method is going to be called a few k times on large files, compared to
one time before the change. But it seems we are lucky here and a simple
fast-path is able to get us closer to the old state:
I added this after `findUnused(...)` which is already caching results
internally
```java
if (unused.isEmpty()) {
return null;
}
```
`null` will lead to the fast path in `CodeHintProviderImpl#createErrors`.
and we get:
```
FINE [org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker]:
{time=0.83ms, invocations=6003, cancelled=false}:
org.netbeans.modules.java.hints.bugs.Unused
FINE [org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker]: hint
processing complete
```
At some point we should take a look at this method and check what is causing
the slowdown there.
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