Exemplo n.º 1
0
 @Nullable
 private static String getTypeName(PsiType type, boolean withIndices) {
   type = type.getDeepComponentType();
   if (type instanceof PsiClassType) {
     final PsiClassType classType = (PsiClassType) type;
     final String className = classType.getClassName();
     if (className != null || !withIndices) return className;
     final PsiClass aClass = classType.resolve();
     return aClass instanceof PsiAnonymousClass
         ? ((PsiAnonymousClass) aClass).getBaseClassType().getClassName()
         : null;
   } else if (type instanceof PsiPrimitiveType) {
     return type.getPresentableText();
   } else if (type instanceof PsiWildcardType) {
     return getTypeName(((PsiWildcardType) type).getExtendsBound(), withIndices);
   } else if (type instanceof PsiIntersectionType) {
     return getTypeName(((PsiIntersectionType) type).getRepresentative(), withIndices);
   } else if (type instanceof PsiCapturedWildcardType) {
     return getTypeName(((PsiCapturedWildcardType) type).getWildcard(), withIndices);
   } else if (type instanceof PsiDisjunctionType) {
     return getTypeName(((PsiDisjunctionType) type).getLeastUpperBound(), withIndices);
   } else {
     return null;
   }
 }
 @Nullable
 private PsiType extractListTypeFromContainingClass(
   PsiElement element) {
   PsiClass listClass = PsiTreeUtil.getParentOfType(element,
                                                    PsiClass.class);
   if (listClass == null) {
     return null;
   }
   final PsiMethod[] getMethods =
     listClass.findMethodsByName("get", true);
   if (getMethods.length == 0) {
     return null;
   }
   final PsiType type = getMethods[0].getReturnType();
   if (!(type instanceof PsiClassType)) {
     return null;
   }
   final PsiClassType classType = (PsiClassType)type;
   final PsiClass parameterClass = classType.resolve();
   if (parameterClass == null) {
     return null;
   }
   PsiClass subClass = null;
   while (listClass != null && !listClass.hasTypeParameters()) {
     subClass = listClass;
     listClass = listClass.getSuperClass();
   }
   if (listClass == null || subClass == null) {
     return TypeUtils.getObjectType(element);
   }
   final PsiTypeParameter[] typeParameters =
     listClass.getTypeParameters();
   if (!parameterClass.equals(typeParameters[0])) {
     return TypeUtils.getObjectType(element);
   }
   final PsiReferenceList extendsList = subClass.getExtendsList();
   if (extendsList == null) {
     return null;
   }
   final PsiJavaCodeReferenceElement[] referenceElements =
     extendsList.getReferenceElements();
   if (referenceElements.length == 0) {
     return null;
   }
   final PsiType[] types =
     referenceElements[0].getTypeParameters();
   if (types.length == 0) {
     return TypeUtils.getObjectType(element);
   }
   return types[0];
 }