public Collection<PsiElement> getAdditionalElementsToDelete(
@NotNull final PsiElement element,
@NotNull final Collection<PsiElement> allElementsToDelete,
final boolean askUser) {
if (element instanceof PsiField) {
PsiField field = (PsiField) element;
final Project project = element.getProject();
String propertyName =
JavaCodeStyleManager.getInstance(project)
.variableNameToPropertyName(field.getName(), VariableKind.FIELD);
PsiClass aClass = field.getContainingClass();
if (aClass != null) {
boolean isStatic = field.hasModifierProperty(PsiModifier.STATIC);
PsiMethod[] getters =
GetterSetterPrototypeProvider.findGetters(aClass, propertyName, isStatic);
if (getters != null) {
final List<PsiMethod> validGetters = new ArrayList<>(1);
for (PsiMethod getter : getters) {
if (!allElementsToDelete.contains(getter) && (getter != null && getter.isPhysical())) {
validGetters.add(getter);
}
}
getters =
validGetters.isEmpty()
? null
: validGetters.toArray(new PsiMethod[validGetters.size()]);
}
PsiMethod setter = PropertyUtil.findPropertySetter(aClass, propertyName, isStatic, false);
if (allElementsToDelete.contains(setter) || setter != null && !setter.isPhysical())
setter = null;
if (askUser && (getters != null || setter != null)) {
final String message =
RefactoringMessageUtil.getGetterSetterMessage(
field.getName(),
RefactoringBundle.message("delete.title"),
getters != null ? getters[0] : null,
setter);
if (!ApplicationManager.getApplication().isUnitTestMode()
&& Messages.showYesNoDialog(
project,
message,
RefactoringBundle.message("safe.delete.title"),
Messages.getQuestionIcon())
!= Messages.YES) {
getters = null;
setter = null;
}
}
List<PsiElement> elements = new ArrayList<>();
if (setter != null) elements.add(setter);
if (getters != null) Collections.addAll(elements, getters);
return elements;
}
}
return null;
}
public Collection<String> findConflicts(
@NotNull final PsiElement element, @NotNull final PsiElement[] allElementsToDelete) {
if (element instanceof PsiMethod) {
final PsiClass containingClass = ((PsiMethod) element).getContainingClass();
if (containingClass != null && !containingClass.hasModifierProperty(PsiModifier.ABSTRACT)) {
final PsiMethod[] superMethods = ((PsiMethod) element).findSuperMethods();
for (PsiMethod superMethod : superMethods) {
if (isInside(superMethod, allElementsToDelete)) continue;
if (superMethod.hasModifierProperty(PsiModifier.ABSTRACT)) {
String message =
RefactoringBundle.message(
"0.implements.1",
RefactoringUIUtil.getDescription(element, true),
RefactoringUIUtil.getDescription(superMethod, true));
return Collections.singletonList(message);
}
}
}
} else if (element instanceof PsiParameter) {
final PsiElement scope = ((PsiParameter) element).getDeclarationScope();
if (scope instanceof PsiMethod) {
final PsiMethod method = (PsiMethod) scope;
final PsiClass containingClass = method.getContainingClass();
if (containingClass != null) {
final int parameterIndex =
method.getParameterList().getParameterIndex((PsiParameter) element);
final PsiMethod methodCopy = (PsiMethod) method.copy();
methodCopy.getParameterList().getParameters()[parameterIndex].delete();
final MultiMap<PsiElement, String> conflicts = new MultiMap<>();
ConflictsUtil.checkMethodConflicts(containingClass, method, methodCopy, conflicts);
return (Collection<String>) conflicts.values();
}
}
}
return null;
}
@Nullable
@Override
public Collection<? extends PsiElement> getElementsToSearch(
@NotNull PsiElement element,
@Nullable Module module,
@NotNull Collection<PsiElement> allElementsToDelete) {
Project project = element.getProject();
if (element instanceof PsiPackage && module != null) {
final PsiDirectory[] directories =
((PsiPackage) element).getDirectories(module.getModuleScope());
if (directories.length == 0) return null;
return Arrays.asList(directories);
} else if (element instanceof PsiMethod) {
final PsiMethod[] methods =
SuperMethodWarningUtil.checkSuperMethods(
(PsiMethod) element,
RefactoringBundle.message("to.delete.with.usage.search"),
allElementsToDelete);
if (methods.length == 0) return null;
final ArrayList<PsiMethod> psiMethods = new ArrayList<>(Arrays.asList(methods));
psiMethods.add((PsiMethod) element);
return psiMethods;
} else if (element instanceof PsiParameter
&& ((PsiParameter) element).getDeclarationScope() instanceof PsiMethod) {
PsiMethod method = (PsiMethod) ((PsiParameter) element).getDeclarationScope();
final Set<PsiParameter> parametersToDelete = new HashSet<>();
parametersToDelete.add((PsiParameter) element);
final int parameterIndex =
method.getParameterList().getParameterIndex((PsiParameter) element);
final List<PsiMethod> superMethods =
new ArrayList<>(Arrays.asList(method.findDeepestSuperMethods()));
if (superMethods.isEmpty()) {
superMethods.add(method);
}
for (PsiMethod superMethod : superMethods) {
parametersToDelete.add(superMethod.getParameterList().getParameters()[parameterIndex]);
OverridingMethodsSearch.search(superMethod)
.forEach(
overrider -> {
parametersToDelete.add(
overrider.getParameterList().getParameters()[parameterIndex]);
return true;
});
}
if (parametersToDelete.size() > 1 && !ApplicationManager.getApplication().isUnitTestMode()) {
String message =
RefactoringBundle.message(
"0.is.a.part.of.method.hierarchy.do.you.want.to.delete.multiple.parameters",
UsageViewUtil.getLongName(method));
int result =
Messages.showYesNoCancelDialog(
project, message, SafeDeleteHandler.REFACTORING_NAME, Messages.getQuestionIcon());
if (result == Messages.CANCEL) return null;
if (result == Messages.NO) return Collections.singletonList(element);
}
return parametersToDelete;
} else if (element instanceof PsiTypeParameter) {
final PsiTypeParameterListOwner owner = ((PsiTypeParameter) element).getOwner();
if (owner instanceof PsiMethod && !owner.hasModifierProperty(PsiModifier.STATIC)) {
final PsiTypeParameterList typeParameterList = owner.getTypeParameterList();
if (typeParameterList != null) {
final int index = typeParameterList.getTypeParameterIndex((PsiTypeParameter) element);
if (index >= 0) {
final ArrayList<PsiTypeParameter> overriders = new ArrayList<>();
overriders.add((PsiTypeParameter) element);
OverridingMethodsSearch.search((PsiMethod) owner)
.forEach(
overrider -> {
final PsiTypeParameter[] typeParameters = overrider.getTypeParameters();
if (index < typeParameters.length) {
overriders.add(typeParameters[index]);
}
return true;
});
if (overriders.size() > 1) {
String message =
RefactoringBundle.message(
"0.is.a.part.of.method.hierarchy.do.you.want.to.delete.multiple.type.parameters",
UsageViewUtil.getLongName(owner));
int result =
ApplicationManager.getApplication().isUnitTestMode()
? Messages.YES
: Messages.showYesNoCancelDialog(
project,
message,
SafeDeleteHandler.REFACTORING_NAME,
Messages.getQuestionIcon());
if (result == Messages.CANCEL) return null;
if (result == Messages.YES) return overriders;
}
}
}
}
}
return Collections.singletonList(element);
}