add methods as form interfaces too.

Author: thelsing

processors/src/main/java/com/axellience/vuegwt/processors/component/template/ComponentTemplateProcessor.java

@@ -1,7 +1,6 @@
 package com.axellience.vuegwt.processors.component.template;
 
-import static com.axellience.vuegwt.processors.utils.ComponentGeneratorsUtil.getComponentLocalComponents;
-import static com.axellience.vuegwt.processors.utils.ComponentGeneratorsUtil.getSuperComponentType;
+import static com.axellience.vuegwt.processors.utils.ComponentGeneratorsUtil.*;
 import static com.axellience.vuegwt.processors.utils.GeneratorsNameUtil.componentToTagName;
 import static com.axellience.vuegwt.processors.utils.GeneratorsNameUtil.computedPropertyNameToFieldName;
 import static com.axellience.vuegwt.processors.utils.GeneratorsUtil.getComputedPropertyName;
@@ -175,6 +174,13 @@ private void registerFieldsAndMethodsInContext(TemplateParserContext templatePar
             superComponent,
             alreadyDoneVariable,
             alreadyDoneMethods));
+
+    getInterfaceTypes(componentTypeElement)
+        .forEach(iface -> registerFieldsAndMethodsInContext(
+            templateParserContext,
+            iface,
+            alreadyDoneVariable,
+            alreadyDoneMethods));
   }
 
   /**

processors/src/main/java/com/axellience/vuegwt/processors/utils/ComponentGeneratorsUtil.java

@@ -193,6 +193,23 @@ public static Optional<TypeElement> getSuperComponentType(TypeElement component)
     return Optional.of((TypeElement) ((DeclaredType) component.getSuperclass()).asElement());
   }
 
+  /**
+   * Return the {@link TypeElement}s of the interfaces of a given {@link
+   * IsVueComponent}. If the {@link IsVueComponent} has not interfaces,
+   * return an empty {@link List}
+   *
+   * @param component The {@link IsVueComponent} to get the super type of
+   * @return The List of {@link TypeElement}s of the interfaces or an empty.
+   */
+  public static List<TypeElement> getInterfaceTypes(TypeElement component) {
+    List<TypeElement> interfaceElements = new LinkedList<>();
+    for (TypeMirror m : component.getInterfaces()) {
+      interfaceElements.add((TypeElement) ((DeclaredType) m).asElement());
+    }
+    return interfaceElements;
+  }
+
+
   /**
    * Return the number of super component in the chain of parents
    *