@Nullable
 private static PsiType getInferredTypes(
     GrReferenceExpressionImpl refExpr, @Nullable PsiElement resolved) {
   final GrExpression qualifier = refExpr.getQualifier();
   if (qualifier == null && !(resolved instanceof PsiClass)) {
     return TypeInferenceHelper.getCurrentContext().getVariableType(refExpr);
   } else if (qualifier != null) {
     // map access
     PsiType qType = qualifier.getType();
     if (qType instanceof PsiClassType && !(qType instanceof GrMapType)) {
       PsiClassType.ClassResolveResult qResult = ((PsiClassType) qType).resolveGenerics();
       PsiClass clazz = qResult.getElement();
       if (clazz != null) {
         PsiClass mapClass =
             JavaPsiFacade.getInstance(refExpr.getProject())
                 .findClass(CommonClassNames.JAVA_UTIL_MAP, refExpr.getResolveScope());
         if (mapClass != null && mapClass.getTypeParameters().length == 2) {
           PsiSubstitutor substitutor =
               TypeConversionUtil.getClassSubstitutor(mapClass, clazz, qResult.getSubstitutor());
           if (substitutor != null) {
             return TypeConversionUtil.erasure(
                 substitutor.substitute(mapClass.getTypeParameters()[1]));
           }
         }
       }
     }
   }
   return null;
 }
 @Nullable
 private static PsiType getTypeFromMapAccess(@NotNull GrReferenceExpressionImpl ref) {
   // map access
   GrExpression qualifier = ref.getQualifierExpression();
   if (qualifier != null) {
     PsiType qType = qualifier.getNominalType();
     if (qType instanceof PsiClassType) {
       PsiClassType.ClassResolveResult qResult = ((PsiClassType) qType).resolveGenerics();
       PsiClass clazz = qResult.getElement();
       if (clazz != null) {
         PsiClass mapClass =
             JavaPsiFacade.getInstance(ref.getProject())
                 .findClass(CommonClassNames.JAVA_UTIL_MAP, ref.getResolveScope());
         if (mapClass != null && mapClass.getTypeParameters().length == 2) {
           PsiSubstitutor substitutor =
               TypeConversionUtil.getClassSubstitutor(mapClass, clazz, qResult.getSubstitutor());
           if (substitutor != null) {
             return TypeConversionUtil.erasure(
                 substitutor.substitute(mapClass.getTypeParameters()[1]));
           }
         }
       }
     }
   }
   return null;
 }
Example #3
0
  @NotNull
  public static PsiType createSetType(@NotNull PsiElement context, @NotNull PsiType type) {
    JavaPsiFacade facade = JavaPsiFacade.getInstance(context.getProject());
    GlobalSearchScope resolveScope = context.getResolveScope();

    PsiClass setClass = facade.findClass(JAVA_UTIL_SET, resolveScope);
    if (setClass != null && setClass.getTypeParameters().length == 1) {
      return facade.getElementFactory().createType(setClass, type);
    }

    return facade.getElementFactory().createTypeByFQClassName(JAVA_UTIL_SET, resolveScope);
  }
Example #4
0
  @Nullable
  private static PsiClassType createCollection(
      Project project, String collectionName, PsiType... item) {
    PsiElementFactory factory = JavaPsiFacade.getElementFactory(project);
    PsiClass collection =
        JavaPsiFacade.getInstance(project)
            .findClass(collectionName, GlobalSearchScope.allScope(project));
    if (collection == null) return null;

    PsiTypeParameter[] parameters = collection.getTypeParameters();
    if (parameters.length != 1) return null;

    return factory.createType(collection, item);
  }
Example #5
0
 @Nullable
 public static PsiType createJavaLangClassType(
     @Nullable PsiType type, Project project, GlobalSearchScope resolveScope) {
   final JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
   PsiType result = null;
   PsiClass javaLangClass = facade.findClass(JAVA_LANG_CLASS, resolveScope);
   if (javaLangClass != null) {
     PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
     final PsiTypeParameter[] typeParameters = javaLangClass.getTypeParameters();
     if (typeParameters.length == 1) {
       substitutor = substitutor.put(typeParameters[0], type);
     }
     result = facade.getElementFactory().createType(javaLangClass, substitutor);
   }
   return result;
 }