public IGoal[] init() {
    PHPDocClassVariableGoal typedGoal = (PHPDocClassVariableGoal) goal;
    TypeContext context = (TypeContext) typedGoal.getContext();
    String variableName = typedGoal.getVariableName();
    int offset = typedGoal.getOffset();

    IModelAccessCache cache = context.getCache();
    IType[] types =
        PHPTypeInferenceUtils.getModelElements(context.getInstanceType(), context, offset, cache);
    Map<PHPDocBlock, IField> docs = new HashMap<PHPDocBlock, IField>();
    // remove array index from field name
    if (variableName.endsWith("]")) { // $NON-NLS-1$
      int index = variableName.indexOf("["); // $NON-NLS-1$
      if (index != -1) {
        variableName = variableName.substring(0, index);
      }
    }
    if (types != null) {
      for (IType type : types) {
        try {
          // we look in whole hiearchy
          ITypeHierarchy superHierarchy;
          if (cache != null) {
            superHierarchy = cache.getSuperTypeHierarchy(type, null);
          } else {
            superHierarchy = type.newSupertypeHierarchy(null);
          }
          IType[] superTypes = superHierarchy.getAllTypes();
          for (IType superType : superTypes) {
            IField[] typeField = PHPModelUtils.getTypeField(superType, variableName, true);
            if (typeField.length > 0) {
              PHPDocBlock docBlock = PHPModelUtils.getDocBlock(typeField[0]);
              if (docBlock != null) {
                docs.put(docBlock, typeField[0]);
              }
            }
          }
        } catch (ModelException e) {
          if (DLTKCore.DEBUG) {
            e.printStackTrace();
          }
        }
      }
    }

    for (Entry<PHPDocBlock, IField> entry : docs.entrySet()) {
      PHPDocBlock doc = entry.getKey();
      IField typeField = entry.getValue();
      IType currentNamespace = PHPModelUtils.getCurrentNamespace(typeField);

      IModelElement space =
          currentNamespace != null ? currentNamespace : typeField.getSourceModule();

      for (PHPDocTag tag : doc.getTags(PHPDocTag.VAR)) {
        // do it like for
        // PHPDocumentationContentAccess#handleBlockTags(List tags):
        // variable name can be optional, but if present keep only
        // the good ones
        if (tag.getVariableReference() != null
            && !tag.getVariableReference().getName().equals(variableName)) {
          continue;
        }

        evaluated.addAll(
            Arrays.asList(
                PHPEvaluationUtils.evaluatePHPDocType(
                    tag.getTypeReferences(), space, tag.sourceStart(), null)));
      }
    }

    return IGoal.NO_GOALS;
  }