private static Map<String, PsiType> getCompatibleTypeNames(
      @NotNull PsiType type, @Nullable PsiType min, PsiManager manager, GlobalSearchScope scope) {
    if (type instanceof PsiDisjunctionType) type = ((PsiDisjunctionType) type).getLeastUpperBound();

    // if initial type is not assignable to min type we don't take into consideration min type.
    if (min != null && !TypesUtil.isAssignable(min, type, manager, scope)) {
      min = null;
    }

    Map<String, PsiType> map = new LinkedHashMap<String, PsiType>();
    final PsiPrimitiveType unboxed = PsiPrimitiveType.getUnboxedType(type);
    if (unboxed != null) type = unboxed;
    final Set<PsiType> set = new LinkedHashSet<PsiType>();
    set.add(type);
    while (!set.isEmpty()) {
      PsiType cur = set.iterator().next();
      set.remove(cur);
      if (!map.containsValue(cur)
          && (min == null || TypesUtil.isAssignable(min, cur, manager, scope))) {
        if (isPartiallySubstituted(cur)) {
          LOG.assertTrue(cur instanceof PsiClassType);
          PsiClassType rawType = ((PsiClassType) cur).rawType();
          map.put(rawType.getPresentableText(), rawType);
        } else {
          map.put(cur.getPresentableText(), cur);
        }
        for (PsiType superType : cur.getSuperTypes()) {
          if (!map.containsValue(superType)) {
            set.add(superType);
          }
        }
      }
    }
    return map;
  }
    @Override
    public void visitBinaryExpression(GrBinaryExpression expression) {
      final IElementType type = expression.getOperationTokenType();
      final GrExpression left = expression.getLeftOperand();
      final GrExpression right = expression.getRightOperand();

      if (type == mREGEX_FIND || type == mREGEX_MATCH) {
        final PsiClassType string =
            TypesUtil.createType(CommonClassNames.JAVA_LANG_STRING, expression);
        myResult = createSimpleSubTypeResult(string);
        return;
      }

      final GrExpression other = myExpression == left ? right : left;
      final PsiType otherType = other != null ? other.getType() : null;

      if (otherType == null) return;

      if (type == mPLUS && otherType.equalsToText(CommonClassNames.JAVA_LANG_STRING)) {
        final PsiClassType obj = TypesUtil.getJavaLangObject(expression);
        myResult = createSimpleSubTypeResult(obj);
        return;
      }

      myResult = createSimpleSubTypeResult(otherType);
    }
  public void setType(@Nullable PsiType type) {
    final GrTypeElement typeElement = getTypeElementGroovy();
    if (type == null) {
      if (typeElement == null) return;
      if (getModifierList().getModifiers().length == 0) {
        getModifierList().setModifierProperty(GrModifier.DEF, true);
      }
      typeElement.delete();
      return;
    }

    type = TypesUtil.unboxPrimitiveTypeWrapper(type);
    GrTypeElement newTypeElement;
    try {
      newTypeElement = GroovyPsiElementFactory.getInstance(getProject()).createTypeElement(type);
    } catch (IncorrectOperationException e) {
      LOG.error(e);
      return;
    }

    if (typeElement == null) {
      getModifierList().setModifierProperty(GrModifier.DEF, false);
      final GrVariable[] variables = getVariables();
      if (variables.length == 0) return;
      newTypeElement = (GrTypeElement) addBefore(newTypeElement, variables[0]);
    } else {
      newTypeElement = (GrTypeElement) typeElement.replace(newTypeElement);
    }

    JavaCodeStyleManager.getInstance(getProject()).shortenClassReferences(newTypeElement);
  }
  @Override
  public void applyTransformation(@NotNull TransformationContext context) {
    if (!(context.getCodeClass() instanceof GroovyScriptClass)) return;
    GroovyScriptClass scriptClass = (GroovyScriptClass) context.getCodeClass();

    LightMethodBuilder mainMethod =
        new LightMethodBuilder(scriptClass.getManager(), GroovyLanguage.INSTANCE, "main")
            .setMethodReturnType(PsiType.VOID)
            .addParameter(
                "args",
                new PsiArrayType(
                    PsiType.getJavaLangString(
                        scriptClass.getManager(), scriptClass.getResolveScope())))
            .addModifiers(PsiModifier.PUBLIC, PsiModifier.STATIC);

    LightMethodBuilder runMethod =
        new LightMethodBuilder(scriptClass.getManager(), GroovyLanguage.INSTANCE, "run")
            .setMethodReturnType(TypesUtil.getJavaLangObject(scriptClass))
            .addModifier(PsiModifier.PUBLIC);

    context.addMethod(runMethod, true);
    context.addMethod(mainMethod, true);

    context.setSuperType(getBaseClassType(scriptClass));
  }
        @Override
        public PsiType fun(GrMethodBaseImpl method) {
          PsiType nominal = method.getNominalType();
          if (nominal != null) {
            if (!(nominal instanceof PsiClassType
                && hasTypeParametersToInfer((PsiClassType) nominal))) {
              return nominal;
            }
          }

          if (!GppTypeConverter.hasTypedContext(method)) {
            LOG.assertTrue(method.isValid(), "invalid method");

            final GrOpenBlock block = method.getBlock();
            if (block != null) {
              LOG.assertTrue(block.isValid(), "invalid code block");
              PsiType inferred =
                  GroovyPsiManager.inferType(method, new MethodTypeInferencer(block));
              if (inferred != null) {
                if (nominal == null || nominal.isAssignableFrom(inferred)) {
                  return inferred;
                }
              }
            }
          }
          if (nominal != null) {
            return nominal;
          }

          return TypesUtil.getJavaLangObject(method);
        }
  public static boolean runContributors(
      @NotNull PsiType qualifierType,
      @NotNull PsiScopeProcessor processor,
      @NotNull PsiElement place,
      @NotNull ResolveState state) {

    MyDelegatingScopeProcessor delegatingProcessor = new MyDelegatingScopeProcessor(processor);

    ensureInit();

    final PsiClass aClass = PsiTypesUtil.getPsiClass(qualifierType);

    if (aClass != null) {
      for (String superClassName : TypesUtil.getSuperClassesWithCache(aClass).keySet()) {
        for (NonCodeMembersContributor enhancer :
            ourClassSpecifiedContributors.get(superClassName)) {
          ProgressManager.checkCanceled();
          enhancer.processDynamicElements(qualifierType, aClass, delegatingProcessor, place, state);
          if (!delegatingProcessor.wantMore) {
            return false;
          }
        }
      }
    }

    for (NonCodeMembersContributor contributor : ourAllTypeContributors) {
      ProgressManager.checkCanceled();
      contributor.processDynamicElements(qualifierType, aClass, delegatingProcessor, place, state);
      if (!delegatingProcessor.wantMore) {
        return false;
      }
    }

    return GroovyDslFileIndex.processExecutors(qualifierType, place, processor, state);
  }
    @Override
    public void visitBinaryExpression(GrBinaryExpression expression) {
      super.visitBinaryExpression(expression);

      if (expression.getOperationTokenType() != GroovyTokenTypes.kIN) return;

      GrExpression leftOperand = expression.getLeftOperand();
      GrExpression rightOperand = expression.getRightOperand();
      if (leftOperand == null || rightOperand == null) return;

      PsiType ltype = leftOperand.getType();
      PsiType rtype = rightOperand.getType();
      if (ltype == null || rtype == null) return;

      PsiType component;

      if (rtype instanceof PsiArrayType) {
        component = ((PsiArrayType) rtype).getComponentType();
      } else if (InheritanceUtil.isInheritor(rtype, CommonClassNames.JAVA_UTIL_COLLECTION)) {
        component =
            PsiUtil.substituteTypeParameter(rtype, CommonClassNames.JAVA_UTIL_COLLECTION, 0, false);
      } else {
        checkSimpleClasses(ltype, rtype, expression);
        return;
      }

      if (component == null) return;

      if (TypesUtil.isAssignable(
          ltype, component, expression.getManager(), expression.getResolveScope(), false)) return;

      registerError(expression, ltype, rtype);
    }
  @Override
  @Nullable
  public PsiType getNominalType() {
    final GroovyResolveResult resolveResult = advancedResolve();
    PsiElement resolved = resolveResult.getElement();

    for (GrReferenceTypeEnhancer enhancer : GrReferenceTypeEnhancer.EP_NAME.getExtensions()) {
      PsiType type = enhancer.getReferenceType(this, resolved);
      if (type != null) {
        return type;
      }
    }

    IElementType dotType = getDotTokenType();
    if (dotType == GroovyTokenTypes.mMEMBER_POINTER) {
      return GrClosureType.create(multiResolve(false), this);
    }

    if (isDefinitelyKeyOfMap()) {
      final PsiType type = getTypeFromMapAccess(this);
      if (type != null) {
        return type;
      }
    }

    PsiType result = getNominalTypeInner(resolved);
    if (result == null) return null;

    result =
        TypesUtil.substituteAndNormalizeType(
            result, resolveResult.getSubstitutor(), resolveResult.getSpreadState(), this);
    return result;
  }
  private static boolean containsAllCases(GrSwitchStatement statement) {
    final GrCaseSection[] sections = statement.getCaseSections();
    for (GrCaseSection section : sections) {
      if (section.isDefault()) return true;
    }

    final GrExpression condition = statement.getCondition();
    if (!(condition instanceof GrReferenceExpression)) return false;

    PsiType type = TypesUtil.unboxPrimitiveTypeWrapper(getNominalTypeNoRecursion(condition));
    if (type == null) return false;

    if (type instanceof PsiPrimitiveType) {
      if (type == PsiType.BOOLEAN) return sections.length == 2;
      if (type == PsiType.BYTE || type == PsiType.CHAR) return sections.length == 128;
      return false;
    }

    if (type instanceof PsiClassType) {
      final PsiClass resolved = ((PsiClassType) type).resolve();
      if (resolved != null && resolved.isEnum()) {
        int enumConstantCount = 0;
        final PsiField[] fields = resolved.getFields();
        for (PsiField field : fields) {
          if (field instanceof PsiEnumConstant) enumConstantCount++;
        }

        if (sections.length == enumConstantCount) return true;
      }
    }

    return false;
  }
  public void visitAssertStatement(GrAssertStatement assertStatement) {
    final InstructionImpl assertInstruction = startNode(assertStatement);

    final GrExpression assertion = assertStatement.getAssertion();
    if (assertion != null) {
      assertion.accept(this);

      InstructionImpl positiveHead = myHead;

      List<GotoInstruction> negations = collectAndRemoveAllPendingNegations(assertStatement);
      if (!negations.isEmpty()) {
        interruptFlow();
        reduceAllNegationsIntoInstruction(assertStatement, negations);
      }

      GrExpression errorMessage = assertStatement.getErrorMessage();
      if (errorMessage != null) {
        errorMessage.accept(this);
      }
      addNode(new ThrowingInstruction(assertStatement));

      final PsiType type =
          TypesUtil.createTypeByFQClassName(
              CommonClassNames.JAVA_LANG_ASSERTION_ERROR, assertStatement);
      ExceptionInfo info = findCatch(type);
      if (info != null) {
        info.myThrowers.add(myHead);
      } else {
        addPendingEdge(null, myHead);
      }

      myHead = positiveHead;
    }
    finishNode(assertInstruction);
  }
        @Override
        public GroovyResolveResult[] resolve(
            GrAssignmentExpressionImpl assignmentExpression, boolean incompleteCode) {
          final IElementType opType = assignmentExpression.getOperationToken();
          if (opType == null || opType == GroovyTokenTypes.mASSIGN)
            return GroovyResolveResult.EMPTY_ARRAY;

          final GrExpression lValue = assignmentExpression.getLValue();
          final PsiType lType;
          if (!(lValue instanceof GrIndexProperty)) {
            lType = lValue.getType();
          } else {
            /*
            now we have something like map[i] += 2. It equals to map.putAt(i, map.getAt(i).plus(2))
            by default map[i] resolves to putAt, but we need getAt(). so this hack is for it =)
             */
            lType = ((GrExpression) lValue.copy()).getType();
          }
          if (lType == null) return GroovyResolveResult.EMPTY_ARRAY;

          final GrExpression rightOperand = assignmentExpression.getRValue();
          PsiType rType = rightOperand == null ? null : rightOperand.getType();

          final IElementType operatorToken = TokenSets.ASSIGNMENTS_TO_OPERATORS.get(opType);
          return TypesUtil.getOverloadedOperatorCandidates(
              lType, operatorToken, assignmentExpression, new PsiType[] {rType});
        }
        @Nullable
        @Override
        public PsiType fun(GrUnaryExpressionImpl unary) {
          final GroovyResolveResult resolveResult =
              PsiImplUtil.extractUniqueResult(unary.multiResolve(false));

          if (isIncDecNumber(resolveResult)) {
            return unary.getOperand().getType();
          }

          final PsiType substituted =
              ResolveUtil.extractReturnTypeFromCandidate(resolveResult, unary, PsiType.EMPTY_ARRAY);
          if (substituted != null) {
            return substituted;
          }

          GrExpression operand = unary.getOperand();
          if (operand == null) return null;

          final PsiType type = operand.getType();
          if (TypesUtil.isNumericType(type)) {
            return type;
          }

          return null;
        }
  @Nullable
  public static PsiType getExpectedClosureReturnType(GrClosableBlock closure) {
    final Set<PsiType> expectedTypes = getDefaultExpectedTypes(closure);

    List<PsiType> expectedReturnTypes = new ArrayList<PsiType>();
    for (PsiType expectedType : expectedTypes) {
      if (!(expectedType instanceof PsiClassType)) return null;

      final PsiClassType.ClassResolveResult resolveResult =
          ((PsiClassType) expectedType).resolveGenerics();
      final PsiClass resolved = resolveResult.getElement();
      if (resolved == null
          || !(GroovyCommonClassNames.GROOVY_LANG_CLOSURE.equals(resolved.getQualifiedName())))
        return null;

      final PsiTypeParameter[] typeParameters = resolved.getTypeParameters();
      if (typeParameters.length != 1) return null;

      final PsiTypeParameter expected = typeParameters[0];
      final PsiType expectedReturnType = resolveResult.getSubstitutor().substitute(expected);
      if (expectedReturnType == PsiType.VOID || expectedReturnType == null) return null;

      expectedReturnTypes.add(expectedReturnType);
    }

    return TypesUtil.getLeastUpperBoundNullable(expectedReturnTypes, closure.getManager());
  }
 public void visitTraditionalForClause(GrTraditionalForClause forClause) {
   if (myExpression.equals(forClause.getCondition())) {
     myResult =
         new TypeConstraint[] {
           new SubtypeConstraint(TypesUtil.getJavaLangObject(forClause), PsiType.BOOLEAN)
         };
   }
 }
 public void visitWhileStatement(GrWhileStatement whileStatement) {
   if (myExpression.equals(whileStatement.getCondition())) {
     myResult =
         new TypeConstraint[] {
           new SubtypeConstraint(TypesUtil.getJavaLangObject(whileStatement), PsiType.BOOLEAN)
         };
   }
 }
 @Nullable
 private static PsiType getTypeFromClassRef(@NotNull GrReferenceExpressionImpl ref) {
   if ("class".equals(ref.getReferenceName())) {
     return TypesUtil.createJavaLangClassType(
         GrReferenceResolveUtil.getQualifierType(ref), ref.getProject(), ref.getResolveScope());
   }
   return null;
 }
  @Nullable
  private static PsiType getTypeFromSpreadOperator(@NotNull GrReferenceExpressionImpl ref) {
    if (ref.getDotTokenType() == GroovyTokenTypes.mSPREAD_DOT) {
      return TypesUtil.createType(CommonClassNames.JAVA_UTIL_LIST, ref);
    }

    return null;
  }
 private boolean typesAgree(@NotNull PsiType type1, @NotNull PsiType type2) {
   if (argumentsSupplied() && type1 instanceof PsiArrayType && !(type2 instanceof PsiArrayType)) {
     type1 = ((PsiArrayType) type1).getComponentType();
   }
   return argumentsSupplied()
       ? // resolve, otherwise same_name_variants
       TypesUtil.isAssignableWithoutConversions(type1, type2, myPlace)
       : type1.equals(type2);
 }
 private static boolean haveDifferentTypes(List<VariableInfo> varInfos) {
   if (varInfos.size() < 2) return true;
   Set<String> diffTypes = new HashSet<String>();
   for (VariableInfo info : varInfos) {
     final PsiType t = info.getType();
     diffTypes.add(t == null ? null : TypesUtil.unboxPrimitiveTypeWrapper(t).getCanonicalText());
   }
   return diffTypes.size() > 1;
 }
 private static boolean hasOnlyClosureParams(PsiMethod method) {
   final PsiParameter[] params = method.getParameterList().getParameters();
   for (PsiParameter param : params) {
     final PsiType type = param.getType();
     if (!TypesUtil.isClassType(type, GroovyCommonClassNames.GROOVY_LANG_CLOSURE)) {
       return false;
     }
   }
   return params.length > 0;
 }
    private static PsiType doFun(GrReferenceExpression refExpr) {
      if (ResolveUtil.isClassReference(refExpr)) {
        GrExpression qualifier = refExpr.getQualifier();
        LOG.assertTrue(qualifier != null);
        return TypesUtil.createJavaLangClassType(
            qualifier.getType(), refExpr.getProject(), refExpr.getResolveScope());
      }

      if (PsiUtil.isCompileStatic(refExpr)) {
        final GroovyResolveResult resolveResult = refExpr.advancedResolve();
        final PsiElement resolvedF = resolveResult.getElement();
        final PsiType type;
        if (resolvedF instanceof GrField) {
          type = ((GrField) resolvedF).getType();
        } else if (resolvedF instanceof GrAccessorMethod) {
          type = ((GrAccessorMethod) resolvedF).getProperty().getType();
        } else {
          type = null;
        }
        if (type != null) {
          return resolveResult.getSubstitutor().substitute(type);
        }
      }

      final PsiElement resolved = refExpr.resolve();
      final PsiType nominal = refExpr.getNominalType();

      Boolean reassigned = GrReassignedLocalVarsChecker.isReassignedVar(refExpr);
      if (reassigned != null && reassigned.booleanValue()) {
        return GrReassignedLocalVarsChecker.getReassignedVarType(refExpr, true);
      }

      final PsiType inferred = getInferredTypes(refExpr, resolved);
      if (inferred == null) {
        if (nominal == null) {
          // inside nested closure we could still try to infer from variable initializer. Not sound,
          // but makes sense
          if (resolved instanceof GrVariable) {
            LOG.assertTrue(resolved.isValid());
            return ((GrVariable) resolved).getTypeGroovy();
          }
        }

        return nominal;
      }

      if (nominal == null) return inferred;
      if (!TypeConversionUtil.isAssignable(TypeConversionUtil.erasure(nominal), inferred, false)) {
        if (resolved instanceof GrVariable
            && ((GrVariable) resolved).getTypeElementGroovy() != null) {
          return nominal;
        }
      }
      return inferred;
    }
 public void visitIfStatement(GrIfStatement ifStatement) {
   if (myExpression.equals(ifStatement.getCondition())) {
     myResult =
         new TypeConstraint[] {
           new SubtypeConstraint(TypesUtil.getJavaLangObject(ifStatement), PsiType.BOOLEAN)
         };
   } else if (myExpression.equals(ifStatement.getThenBranch())
       || myExpression.equals(ifStatement.getElseBranch())) {
     checkExitPoint();
   }
 }
  @NotNull
  private static PsiClassType getBaseClassType(@NotNull GroovyScriptClass scriptClass) {
    PsiClassType type = getSuperClassTypeFromBaseScriptAnnotatedVariable(scriptClass);
    if (type != null) return type;

    final PsiClassType superClassFromDSL =
        GroovyDslFileIndex.processScriptSuperClasses(scriptClass.getContainingFile());
    if (superClassFromDSL != null) return superClassFromDSL;

    return TypesUtil.createTypeByFQClassName(
        GroovyCommonClassNames.GROOVY_LANG_SCRIPT, scriptClass);
  }
Exemple #24
0
 private void getVariantsFromQualifier(@NotNull GrExpression qualifier) {
   Project project = qualifier.getProject();
   PsiType qualifierType = qualifier.getType();
   final ResolveState state = ResolveState.initial();
   if (qualifierType == null || qualifierType == PsiType.VOID) {
     if (qualifier instanceof GrReferenceExpression) {
       PsiElement resolved = ((GrReferenceExpression) qualifier).resolve();
       if (resolved instanceof PsiPackage || resolved instanceof PsiVariable) {
         resolved.processDeclarations(myProcessor, state, null, myRefExpr);
         return;
       }
     }
     getVariantsFromQualifierType(TypesUtil.getJavaLangObject(qualifier), project);
   } else if (qualifierType instanceof PsiIntersectionType) {
     for (PsiType conjunct : ((PsiIntersectionType) qualifierType).getConjuncts()) {
       getVariantsFromQualifierType(conjunct, project);
     }
   } else if (qualifierType instanceof GrTraitType) {
     GrTypeDefinition definition = ((GrTraitType) qualifierType).getMockTypeDefinition();
     if (definition != null) {
       PsiClassType classType = JavaPsiFacade.getElementFactory(project).createType(definition);
       getVariantsFromQualifierType(classType, project);
     } else {
       getVariantsFromQualifierType(((GrTraitType) qualifierType).getExprType(), project);
       for (PsiClassType traitType : ((GrTraitType) qualifierType).getTraitTypes()) {
         getVariantsFromQualifierType(traitType, project);
       }
     }
   } else {
     getVariantsFromQualifierType(qualifierType, project);
     if (qualifier instanceof GrReferenceExpression
         && !PsiUtil.isSuperReference(qualifier)
         && !PsiUtil.isInstanceThisRef(qualifier)) {
       PsiElement resolved = ((GrReferenceExpression) qualifier).resolve();
       if (resolved instanceof PsiClass) { // //omitted .class
         GlobalSearchScope scope = myRefExpr.getResolveScope();
         PsiClass javaLangClass = PsiUtil.getJavaLangClass(resolved, scope);
         if (javaLangClass != null) {
           PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
           PsiTypeParameter[] typeParameters = javaLangClass.getTypeParameters();
           if (typeParameters.length == 1) {
             substitutor = substitutor.put(typeParameters[0], qualifierType);
           }
           PsiType javaLangClassType =
               JavaPsiFacade.getElementFactory(myRefExpr.getProject())
                   .createType(javaLangClass, substitutor);
           ResolveUtil.processAllDeclarations(javaLangClassType, myProcessor, state, myRefExpr);
         }
       }
     }
   }
 }
        @NotNull
        @Override
        public GroovyResolveResult[] resolve(
            @NotNull GrUnaryExpressionImpl unary, boolean incompleteCode) {
          final GrExpression operand = unary.getOperand();
          if (operand == null) return GroovyResolveResult.EMPTY_ARRAY;

          final PsiType type = operand.getType();
          if (type == null) return GroovyResolveResult.EMPTY_ARRAY;

          return TypesUtil.getOverloadedUnaryOperatorCandidates(
              type, unary.getOperationTokenType(), operand, PsiType.EMPTY_ARRAY);
        }
 @Nullable
 private PsiType extractMapValueType(
     PsiType thisType,
     PsiType[] argTypes,
     PsiManager manager,
     GlobalSearchScope resolveScope) {
   if (argTypes.length != 1
       || !InheritanceUtil.isInheritor(thisType, CommonClassNames.JAVA_UTIL_MAP))
     return null;
   final PsiType substituted =
       substituteTypeParameter(thisType, CommonClassNames.JAVA_UTIL_MAP, 1, true);
   return TypesUtil.boxPrimitiveType(substituted, manager, resolveScope);
 }
 @Nullable
 private PsiType extractLastParameterType(GroovyResolveResult candidate) {
   PsiElement element = candidate.getElement();
   if (element instanceof PsiMethod) {
     PsiParameter[] parameters = ((PsiMethod) element).getParameterList().getParameters();
     if (parameters.length > 1) {
       PsiParameter last = parameters[parameters.length - 1];
       return TypesUtil.substituteBoxAndNormalizeType(
           last.getType(), candidate.getSubstitutor(), candidate.getSpreadState(), this);
     }
   }
   return null;
 }
  @Override
  public void processDynamicElements(
      @NotNull PsiType qualifierType,
      PsiClass aClass,
      PsiScopeProcessor processor,
      GroovyPsiElement place,
      ResolveState state) {
    ClassHint classHint = processor.getHint(ClassHint.KEY);
    if (classHint != null && !classHint.shouldProcess(ClassHint.ResolveKind.PROPERTY)) return;

    String nameHint = ResolveUtil.getNameHint(processor);

    Map<String, PsiClass> supers = TypesUtil.getSuperClassesWithCache(aClass);

    PsiElement grCall = place.getParent();
    if (grCall instanceof GrMethodCall) {
      PsiElement grClosure = grCall.getParent();
      if (grClosure instanceof GrClosableBlock) {
        PsiElement contentField = grClosure.getParent();
        if (contentField instanceof GrField) {
          GrField f = (GrField) contentField;
          if ("content".equals(f.getName())
              && f.hasModifierProperty(PsiModifier.STATIC)
              && f.getContainingClass() == aClass) {
            Map<String, PsiField> elements = GebUtil.getContentElements(aClass);
            for (PsiField field : elements.values()) {
              if (field.getNavigationElement() == place) {
                return; // Don't resolve variable definition.
              }
            }
          }
        }
      }
    }

    for (PsiClass psiClass : supers.values()) {
      Map<String, PsiField> contentFields = GebUtil.getContentElements(psiClass);

      if (nameHint == null) {
        for (Map.Entry<String, PsiField> entry : contentFields.entrySet()) {
          if (!processor.execute(entry.getValue(), state)) return;
        }
      } else {
        PsiField field = contentFields.get(nameHint);
        if (field != null) {
          processor.execute(field, state);
          return;
        }
      }
    }
  }
  @Override
  @Nullable
  public PsiType getReturnType() {
    if (isConstructor()) {
      return null;
    }

    final PsiType type = getNominalType();
    if (type != null) {
      return type;
    }

    return TypesUtil.getJavaLangObject(this);
  }
  private PsiClassType createEnumType() {
    JavaPsiFacade facade = JavaPsiFacade.getInstance(getProject());
    PsiClass enumClass = facade.findClass(JAVA_LANG_ENUM, getResolveScope());
    PsiElementFactory factory = facade.getElementFactory();
    if (enumClass != null) {
      PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
      PsiTypeParameter[] typeParameters = enumClass.getTypeParameters();
      if (typeParameters.length == 1) {
        substitutor = substitutor.put(typeParameters[0], factory.createType(this));
      }

      return factory.createType(enumClass, substitutor);
    }
    return TypesUtil.createTypeByFQClassName(JAVA_LANG_ENUM, this);
  }