IDEA-300046 add pattern usage type for java patterns

GitOrigin-RevId: 8fce1a459ef4d18c6f5aef44eb4988b1770a6ffa

java/java-impl/src/com/intellij/usages/impl/rules/JavaUsageTypeProvider.java

@@ -142,6 +142,10 @@ public final class JavaUsageTypeProvider implements UsageTypeProviderEx {
       return UsageType.ANNOTATION;
     }
 
+    if (element.getParent() instanceof PsiTypeElement && element.getParent().getParent() instanceof PsiPattern) {
+      return UsageType.PATTERN;
+    }
+
     if (PsiTreeUtil.getParentOfType(element, PsiImportStatementBase.class, false) != null) return UsageType.CLASS_IMPORT;
     PsiReferenceList referenceList = PsiTreeUtil.getParentOfType(element, PsiReferenceList.class);
     if (referenceList != null) {

java/java-tests/testData/psi/usages/PatternInInstanceof.java

@@ -0,0 +1,6 @@
+record Rec(int x, String s) {
+  void foo(Object o) {
+    if (o instanceof <caret>Rec(int patternX, String s) r) {
+    }
+  }
+}

java/java-tests/testData/psi/usages/PatternInSwitch.java

@@ -0,0 +1,7 @@
+record Rec(int x, String s) {
+  void foo(Object o) {
+    switch (o) {
+      case <caret>Rec(int patternX, String s) -> {}
+    }
+  }
+}

java/java-tests/testSrc/com/intellij/java/psi/usages/JavaUsageTypeProviderTest.java

@@ -47,6 +47,16 @@ public class JavaUsageTypeProviderTest extends LightJavaCodeInsightFixtureTestCa
     assertUsageType(UsageType.CLASS_PERMITS_LIST, myFixture.findClass("Foo"));
   }
 
+  public void testPatternInSwitch() {
+    myFixture.configureByFiles("PatternInSwitch.java");
+    assertUsageType(UsageType.PATTERN, myFixture.findClass("Rec"));
+  }
+
+  public void testPatternInInstanceof() {
+    myFixture.configureByFiles("PatternInInstanceof.java");
+    assertUsageType(UsageType.PATTERN, myFixture.findClass("Rec"));
+  }
+
   private void assertUsageType(UsageType expected, PsiClass target) {
     UsageTarget[] targets = {new PsiElement2UsageTargetAdapter(target)};
     PsiElement element = myFixture.getReferenceAtCaretPositionWithAssertion().getElement();

platform/usageView/resources/messages/UsageViewBundle.properties

@@ -61,6 +61,7 @@ usage.type.new.anonymous=New anonymous inheritor creation
 usage.type.new.array=New array creation
 usage.type.annotation=Annotation
 usage.type.type.parameter=Type parameter
+usage.type.type.pattern=Pattern
 usage.type.read=Value read
 usage.type.write=Value write
 preview.usages.action.text=Preview Source

platform/usageView/src/com/intellij/usages/impl/rules/UsageType.java

@@ -29,6 +29,7 @@ public final class UsageType {
   public static final UsageType CLASS_NEW_ARRAY = new UsageType(UsageViewBundle.messagePointer("usage.type.new.array"));
   public static final UsageType ANNOTATION = new UsageType(UsageViewBundle.messagePointer("usage.type.annotation"));
   public static final UsageType TYPE_PARAMETER = new UsageType(UsageViewBundle.messagePointer("usage.type.type.parameter"));
+  public static final UsageType PATTERN = new UsageType(UsageViewBundle.messagePointer("usage.type.type.parameter"));
 
   public static final UsageType READ = new UsageType(UsageViewBundle.messagePointer("usage.type.read"));
   public static final UsageType WRITE = new UsageType(UsageViewBundle.messagePointer("usage.type.write"));