#2704 Fix broken reference to constants within nested enums

processor/src/main/resources/org/mapstruct/ap/internal/model/assignment/EnumConstantWrapper.ftl

@@ -6,4 +6,4 @@
 
 -->
 <#-- @ftlvariable name="" type="org.mapstruct.ap.internal.model.assignment.EnumConstantWrapper" -->
-${ext.targetType.name}.${assignment}
+${ext.targetType.createReferenceName()}.${assignment}

processor/src/test/java/org/mapstruct/ap/test/bugs/_2704/Issue2704Test.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2704;
+
+import org.mapstruct.ap.testutil.IssueKey;
+import org.mapstruct.ap.testutil.ProcessorTest;
+import org.mapstruct.ap.testutil.WithClasses;
+
+/**
+ * @author Valentin Kulesh
+ */
+@IssueKey("2704")
+@WithClasses({ TestMapper.class, TopLevel.class })
+public class Issue2704Test {
+    @ProcessorTest
+    public void shouldCompile() {
+    }
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_2704/TestMapper.java

@@ -0,0 +1,19 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2704;
+
+import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
+import org.mapstruct.ap.test.bugs._2704.TopLevel.Target;
+
+/**
+ * @author Valentin Kulesh
+ */
+@Mapper(implementationPackage = "")
+public interface TestMapper {
+    @Mapping(target = "e", constant = "VALUE1")
+    Target test(Object unused);
+}

processor/src/test/java/org/mapstruct/ap/test/bugs/_2704/TopLevel.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright MapStruct Authors.
+ *
+ * Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
+ */
+package org.mapstruct.ap.test.bugs._2704;
+
+/**
+ * @author Valentin Kulesh
+ */
+public interface TopLevel {
+    enum InnerEnum {
+        VALUE1,
+        VALUE2,
+    }
+
+    class Target {
+        public void setE(@SuppressWarnings("unused") InnerEnum e) {
+        }
+    }
+}