IDEA-244569 Complete 'interface' and 'enum' keywords on Java 15-preview

GitOrigin-RevId: 0cfd42a15e77b274c6d578303d6f274cb3dae4f4

java/java-impl/src/com/intellij/codeInsight/completion/JavaKeywordCompletion.java

@@ -547,6 +547,12 @@ public class JavaKeywordCompletion {
         if (HighlightingFeature.RECORDS.isAvailable(myPosition)) {
           addKeyword(new OverridableSpace(createKeyword(PsiKeyword.RECORD), TailType.HUMBLE_SPACE_BEFORE_WORD));
         }
+        if (HighlightingFeature.LOCAL_ENUMS.isAvailable(myPosition)) {
+          addKeyword(new OverridableSpace(createKeyword(PsiKeyword.ENUM), TailType.HUMBLE_SPACE_BEFORE_WORD));
+        }
+        if (HighlightingFeature.LOCAL_INTERFACES.isAvailable(myPosition)) {
+          addKeyword(new OverridableSpace(createKeyword(PsiKeyword.INTERFACE), TailType.HUMBLE_SPACE_BEFORE_WORD));
+        }
       }
       if (PsiTreeUtil.getParentOfType(myPosition, PsiExpression.class, true, PsiMember.class) == null &&
           PsiTreeUtil.getParentOfType(myPosition, PsiCodeBlock.class, true, PsiMember.class) == null) {

java/java-tests/testData/codeInsight/completion/keywords/localEnum.java

@@ -0,0 +1,6 @@
+class Test {
+  void test() {
+    en<caret>
+  }
+}
+

java/java-tests/testData/codeInsight/completion/keywords/localEnum_after.java

@@ -0,0 +1,6 @@
+class Test {
+  void test() {
+    enum <caret>
+  }
+}
+

java/java-tests/testData/codeInsight/completion/keywords/localInterface.java

@@ -0,0 +1,6 @@
+class Test {
+  void test() {
+    inte<caret>
+  }
+}
+

java/java-tests/testData/codeInsight/completion/keywords/localInterface_after.java

@@ -0,0 +1,6 @@
+class Test {
+  void test() {
+    interface <caret>
+  }
+}
+

java/java-tests/testData/codeInsight/completion/keywords/noLocalInterfaceAt15.java

@@ -0,0 +1,6 @@
+class Test {
+  void test() {
+    inte<caret>
+  }
+}
+

java/java-tests/testSrc/com/intellij/java/codeInsight/completion/KeywordCompletionTest.java

@@ -188,6 +188,15 @@ public class KeywordCompletionTest extends LightCompletionTestCase {
   public void testQualifiedNew() { doTest(1, "new"); }
   public void testRecord() {setLanguageLevel(LanguageLevel.JDK_14_PREVIEW);  doTest(); }
   public void testRecordInFileScope() {setLanguageLevel(LanguageLevel.JDK_14_PREVIEW);  doTest(1, "record"); }
+  public void testNoLocalInterfaceAt15() {
+    setLanguageLevel(LanguageLevel.JDK_15);  doTest(0);
+  }
+  public void testLocalInterface() {
+    setLanguageLevel(LanguageLevel.JDK_15_PREVIEW);  doTest();
+  }
+  public void testLocalEnum() {
+    setLanguageLevel(LanguageLevel.JDK_15_PREVIEW);  doTest();
+  }
   public void testSealedModifier() {setLanguageLevel(LanguageLevel.JDK_15_PREVIEW);  doTest(1, "sealed"); }
   public void testPermitsList() {setLanguageLevel(LanguageLevel.JDK_15_PREVIEW);  doTest(1, "permits"); }