IDEA-106104 Groovy: complete 'class', 'enum' etc in the following case

plugins/groovy/src/org/jetbrains/plugins/groovy/lang/completion/GroovyCompletionData.java

@@ -400,6 +400,21 @@ public class GroovyCompletionData {
         return true;
       }
     }
+
+    /*
+    @Anno
+    cl<caret>
+     */
+    if (parent instanceof GrVariable && context == ((GrVariable)parent).getNameIdentifierGroovy()) {
+      final PsiElement decl = parent.getParent();
+      if (decl instanceof GrVariableDeclaration &&
+          !((GrVariableDeclaration)decl).isTuple() &&
+          ((GrVariableDeclaration)decl).getTypeElementGroovy() == null &&
+          (decl.getParent() instanceof GrTypeDefinitionBody || decl.getParent() instanceof GroovyFile)) {
+        return true;
+      }
+    }
+
     final PsiElement leaf = getLeafByOffset(context.getTextRange().getStartOffset() - 1, context);
     if (leaf != null) {
       PsiElement prev = leaf;
@@ -589,7 +604,8 @@ public class GroovyCompletionData {
     }
     if (asSimpleVariable(context) ||
         asTypedMethod(context) ||
-        asVariableInBlock(context)) {
+        asVariableInBlock(context) ||
+        asVariableAfterModifiers(context)) {
       return true;
     }
     if ((parent instanceof GrParameter &&
@@ -617,6 +633,20 @@ public class GroovyCompletionData {
            isNewStatement(context, false);
   }
 
+  private static boolean asVariableAfterModifiers(PsiElement context) {
+    final PsiElement parent = context.getParent();
+    if (parent instanceof GrVariable && context == ((GrVariable)parent).getNameIdentifierGroovy()) {
+      final PsiElement decl = parent.getParent();
+      if (decl instanceof GrVariableDeclaration &&
+          !((GrVariableDeclaration)decl).isTuple() &&
+          ((GrVariableDeclaration)decl).getTypeElementGroovy() == null) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
   private static boolean isInfixOperatorPosition(PsiElement context) {
     if (context.getParent() != null &&
         context.getParent() instanceof GrReferenceExpression &&

plugins/groovy/test/org/jetbrains/plugins/groovy/completion/KeywordCompletionTest.groovy

@@ -102,6 +102,8 @@ public class KeywordCompletionTest extends CompletionTestBase {
   void testDefaultInAnnotation() { doTest() }
   void testElse1()               { doTest() }
   void testElse2()               { doTest() }
+  void testClassAfterAnnotation(){ doTest() }
+  void testClassAfterAnno2()     { doTest() }
 
   String basePath = TestUtils.testDataPath + 'groovy/oldCompletion/keyword'
 

plugins/groovy/testdata/groovy/oldCompletion/keyword/classAfterAnno2.test

@@ -0,0 +1,24 @@
+@Anno
+public <caret>
+-----
+abstract
+boolean
+byte
+char
+class
+def
+double
+enum
+final
+float
+int
+interface
+long
+native
+short
+static
+strictfp
+synchronized
+transient
+void
+volatile

plugins/groovy/testdata/groovy/oldCompletion/keyword/classAfterAnnotation.test

@@ -0,0 +1,27 @@
+@Anno
+<caret>
+-----
+abstract
+boolean
+byte
+char
+class
+double
+enum
+final
+float
+if
+int
+interface
+long
+native
+private
+protected
+public
+short
+static
+strictfp
+synchronized
+transient
+void
+volatile