boolean (JavaChangeInfo changeInfo, GrMethod method, @Nullable PsiMethod baseMethod) { if (changeInfo.isNameChanged()) { String newName = baseMethod == null ? changeInfo.getNewName() : RefactoringUtil.suggestNewOverriderName(method.getName(), baseMethod.getName(), changeInfo.getNewName()); if (newName != null && !newName.equals(method.getName())) { method.setName(changeInfo.getNewName()); } } final GrModifierList modifierList = method.getModifierList(); if (changeInfo.isVisibilityChanged()) { modifierList.setModifierProperty(changeInfo.getNewVisibility(), true); } PsiSubstitutor substitutor = baseMethod != null ? calculateSubstitutor(method, baseMethod) : PsiSubstitutor.EMPTY; final PsiMethod context = changeInfo.getMethod(); GrTypeElement oldReturnTypeElement = method.getReturnTypeElementGroovy(); if (changeInfo.isReturnTypeChanged()) { CanonicalTypes.Type newReturnType = changeInfo.getNewReturnType(); if (newReturnType == null) { if (oldReturnTypeElement != null) { oldReturnTypeElement.delete(); if (modifierList.getModifiers().length == 0) { modifierList.setModifierProperty(GrModifier.DEF, true); } } } else { PsiType type = newReturnType.getType(context, method.getManager()); GrReferenceAdjuster.shortenAllReferencesIn(method.setReturnType(substitutor.substitute(type))); if (oldReturnTypeElement == null) { modifierList.setModifierProperty(GrModifier.DEF, false); } } } JavaParameterInfo[] newParameters = changeInfo.getNewParameters(); final GrParameterList parameterList = method.getParameterList(); GrParameter[] oldParameters = parameterList.getParameters(); final PsiParameter[] oldBaseParams = baseMethod != null ? baseMethod.getParameterList().getParameters() : null; Set<GrParameter> toRemove = new HashSet<>(oldParameters.length); ContainerUtil.addAll(toRemove, oldParameters); GrParameter anchor = null; final GrDocComment docComment = method.getDocComment(); final GrDocTag[] tags = docComment == null ? null : docComment.getTags(); int newParamIndex = 0; for (JavaParameterInfo newParameter : newParameters) { //if old parameter name differs from base method parameter name we don't change it final String newName; final int oldIndex = newParameter.getOldIndex(); if (oldIndex >= 0 && oldBaseParams != null) { final String oldName = oldParameters[oldIndex].getName(); if (oldName.equals(oldBaseParams[oldIndex].getName())) { newName = newParameter.getName(); } else { newName = oldName; } } else { newName = newParameter.getName(); } final GrParameter oldParameter = oldIndex >= 0 ? oldParameters[oldIndex] : null; if (docComment != null && oldParameter != null) { final String oldName = oldParameter.getName(); for (GrDocTag tag : tags) { if ("@param".equals(tag.getName())) { final GrDocParameterReference parameterReference = tag.getDocParameterReference(); if (parameterReference != null && oldName.equals(parameterReference.getText())) { parameterReference.handleElementRename(newName); } } } } GrParameter grParameter = createNewParameter(substitutor, context, parameterList, newParameter, newName); if (oldParameter != null) { grParameter.getModifierList().replace(oldParameter.getModifierList()); } if ("def".equals(newParameter.getTypeText())) { grParameter.getModifierList().setModifierProperty(GrModifier.DEF, true); } else if (StringUtil.isEmpty(newParameter.getTypeText())) { grParameter.getModifierList().setModifierProperty(GrModifier.DEF, false); } anchor = (GrParameter)parameterList.addAfter(grParameter, anchor); if (newParamIndex < oldParameters.length) { GrParameter oldParam = oldParameters[newParamIndex]; PsiElement prev = oldParam.getPrevSibling(); if (isWhiteSpaceOrNewLine(prev)) { parameterList.addBefore(prev, anchor); } } newParamIndex++; } for (GrParameter oldParameter : toRemove) { oldParameter.delete(); } JavaCodeStyleManager.getInstance(parameterList.getProject()).shortenClassReferences(parameterList); TextRange parametersRange = parameterList.getParametersRange(); CodeStyleManager.getInstance(parameterList.getProject()).reformatRange( parameterList, parametersRange.getStartOffset(), parametersRange.getEndOffset() ); if (changeInfo.isExceptionSetOrOrderChanged()) { final ThrownExceptionInfo[] infos = changeInfo.getNewExceptions(); PsiClassType[] exceptionTypes = new PsiClassType[infos.length]; for (int i = 0; i < infos.length; i++) { ThrownExceptionInfo info = infos[i]; exceptionTypes[i] = (PsiClassType)info.createType(method, method.getManager()); } PsiReferenceList thrownList = GroovyPsiElementFactory.getInstance(method.getProject()).createThrownList(exceptionTypes); thrownList = (PsiReferenceList)method.getThrowsList().replace(thrownList); JavaCodeStyleManager.getInstance(thrownList.getProject()).shortenClassReferences(thrownList); CodeStyleManager.getInstance(method.getProject()).reformat(method.getThrowsList()); } return true; }