static PsiElement[] getOccurrences(GrIntroduceParameterSettings settings) {
final GrParametersOwner scope = settings.getToReplaceIn();
final GrExpression expression = settings.getExpression();
if (expression != null) {
final PsiElement expr = PsiUtil.skipParentheses(expression, false);
if (expr == null) return PsiElement.EMPTY_ARRAY;
final PsiElement[] occurrences = GroovyRefactoringUtil.getExpressionOccurrences(expr, scope);
if (occurrences == null || occurrences.length == 0) {
throw new GrRefactoringError(GroovyRefactoringBundle.message("no.occurrences.found"));
}
return occurrences;
} else {
final GrVariable var = settings.getVar();
LOG.assertTrue(var != null);
final List<PsiElement> list = Collections.synchronizedList(new ArrayList<PsiElement>());
ReferencesSearch.search(var, new LocalSearchScope(scope))
.forEach(
new Processor<PsiReference>() {
@Override
public boolean process(PsiReference psiReference) {
final PsiElement element = psiReference.getElement();
if (element != null) {
list.add(element);
}
return true;
}
});
return list.toArray(new PsiElement[list.size()]);
}
}
@NotNull
@Override
public PsiType getForcedType() {
final PsiType selectedType = mySettings.getSelectedType();
if (selectedType != null) return selectedType;
final PsiManager manager = PsiManager.getInstance(myProject);
final GlobalSearchScope resolveScope = mySettings.getToReplaceIn().getResolveScope();
return PsiType.getJavaLangObject(manager, resolveScope);
}
@NotNull
@Override
protected UsageInfo[] findUsages() {
ArrayList<UsageInfo> result = new ArrayList<UsageInfo>();
final PsiMethod toSearchFor = ((PsiMethod) mySettings.getToSearchFor());
if (!mySettings.generateDelegate()) {
Collection<PsiReference> refs =
MethodReferencesSearch.search(
toSearchFor, GlobalSearchScope.projectScope(myProject), true)
.findAll();
for (PsiReference ref1 : refs) {
PsiElement ref = ref1.getElement();
if (ref instanceof PsiMethod && ((PsiMethod) ref).isConstructor()) {
DefaultConstructorImplicitUsageInfo implicitUsageInfo =
new DefaultConstructorImplicitUsageInfo(
(PsiMethod) ref, ((PsiMethod) ref).getContainingClass(), toSearchFor);
result.add(implicitUsageInfo);
} else if (ref instanceof PsiClass) {
result.add(new NoConstructorClassUsageInfo((PsiClass) ref));
} else if (!PsiTreeUtil.isAncestor(mySettings.getToReplaceIn(), ref, false)) {
result.add(new ExternalUsageInfo(ref));
} else {
result.add(new ChangedMethodCallInfo(ref));
}
}
}
if (mySettings.replaceAllOccurrences()) {
PsiElement[] exprs = GroovyIntroduceParameterUtil.getOccurrences(mySettings);
for (PsiElement expr : exprs) {
result.add(new InternalUsageInfo(expr));
}
} else {
if (mySettings.getExpression() != null) {
result.add(new InternalUsageInfo(mySettings.getExpression()));
}
}
Collection<PsiMethod> overridingMethods =
OverridingMethodsSearch.search(toSearchFor, true).findAll();
for (PsiMethod overridingMethod : overridingMethods) {
result.add(new UsageInfo(overridingMethod));
}
final UsageInfo[] usageInfos = result.toArray(new UsageInfo[result.size()]);
return UsageViewUtil.removeDuplicatedUsages(usageInfos);
}
public GrIntroduceParameterProcessor(GrIntroduceParameterSettings settings) {
super(settings.getProject());
this.mySettings = settings;
LOG.assertTrue(mySettings.getToReplaceIn() instanceof GrMethod);
LOG.assertTrue(mySettings.getToSearchFor() instanceof PsiMethod);
final StringPartInfo stringPartInfo = mySettings.getStringPartInfo();
final GrExpression expression =
stringPartInfo != null
? GrIntroduceHandlerBase.generateExpressionFromStringPart(
stringPartInfo, settings.getProject())
: mySettings.getExpression();
myParameterInitializer = new GrExpressionWrapper(expression);
}
@Override
protected boolean preprocessUsages(Ref<UsageInfo[]> refUsages) {
UsageInfo[] usagesIn = refUsages.get();
MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>();
if (!mySettings.generateDelegate()) {
GroovyIntroduceParameterUtil.detectAccessibilityConflicts(
mySettings.getExpression(),
usagesIn,
conflicts,
mySettings.replaceFieldsWithGetters()
!= IntroduceParameterRefactoring.REPLACE_FIELDS_WITH_GETTERS_NONE,
myProject);
}
final GrMethod toReplaceIn = (GrMethod) mySettings.getToReplaceIn();
if (mySettings.getExpression() != null
&& !toReplaceIn.hasModifierProperty(PsiModifier.PRIVATE)) {
final AnySupers anySupers = new AnySupers();
mySettings.getExpression().accept(anySupers);
if (anySupers.containsSupers()) {
for (UsageInfo usageInfo : usagesIn) {
if (!(usageInfo.getElement() instanceof PsiMethod)
&& !(usageInfo instanceof InternalUsageInfo)) {
if (!PsiTreeUtil.isAncestor(
toReplaceIn.getContainingClass(), usageInfo.getElement(), false)) {
conflicts.putValue(
mySettings.getExpression(),
RefactoringBundle.message(
"parameter.initializer.contains.0.but.not.all.calls.to.method.are.in.its.class",
CommonRefactoringUtil.htmlEmphasize(PsiKeyword.SUPER)));
break;
}
}
}
}
}
for (IntroduceParameterMethodUsagesProcessor processor :
IntroduceParameterMethodUsagesProcessor.EP_NAME.getExtensions()) {
processor.findConflicts(this, refUsages.get(), conflicts);
}
return showConflicts(conflicts, usagesIn);
}
@Override
public PsiMethod getMethodToReplaceIn() {
return (PsiMethod) mySettings.getToReplaceIn();
}
@Override
protected String getCommandName() {
return RefactoringBundle.message(
"introduce.parameter.command",
DescriptiveNameUtil.getDescriptiveName(mySettings.getToReplaceIn()));
}
@Override
protected void performRefactoring(UsageInfo[] usages) {
GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(myProject);
PsiType initializerType = mySettings.getSelectedType();
// Changing external occurrences (the tricky part)
IntroduceParameterUtil.processUsages(usages, this);
final GrMethod toReplaceIn = (GrMethod) mySettings.getToReplaceIn();
final PsiMethod toSearchFor = (PsiMethod) mySettings.getToSearchFor();
final boolean methodsToProcessAreDifferent = toReplaceIn != toSearchFor;
if (mySettings.generateDelegate()) {
GroovyIntroduceParameterUtil.generateDelegate(toReplaceIn, myParameterInitializer, myProject);
if (methodsToProcessAreDifferent) {
final GrMethod method =
GroovyIntroduceParameterUtil.generateDelegate(
toSearchFor, myParameterInitializer, myProject);
final PsiClass containingClass = method.getContainingClass();
if (containingClass != null && containingClass.isInterface()) {
final GrOpenBlock block = method.getBlock();
if (block != null) {
block.delete();
}
}
}
}
// Changing signature of initial method
// (signature of myMethodToReplaceIn will be either changed now or have already been changed)
LOG.assertTrue(initializerType == null || initializerType.isValid());
final FieldConflictsResolver fieldConflictsResolver =
new FieldConflictsResolver(mySettings.getName(), toReplaceIn.getBlock());
IntroduceParameterUtil.changeMethodSignatureAndResolveFieldConflicts(
new UsageInfo(toReplaceIn), usages, this);
if (methodsToProcessAreDifferent) {
IntroduceParameterUtil.changeMethodSignatureAndResolveFieldConflicts(
new UsageInfo(toSearchFor), usages, this);
}
// Replacing expression occurrences
for (UsageInfo usage : usages) {
if (usage instanceof ChangedMethodCallInfo) {
PsiElement element = usage.getElement();
GroovyIntroduceParameterUtil.processChangedMethodCall(element, mySettings, myProject);
} else if (usage instanceof InternalUsageInfo) {
PsiElement element = usage.getElement();
if (element == null) continue;
GrExpression newExpr = factory.createExpressionFromText(mySettings.getName());
if (element instanceof GrExpression) {
((GrExpression) element).replaceWithExpression(newExpr, true);
} else {
element.replace(newExpr);
}
}
}
final StringPartInfo stringPartInfo = mySettings.getStringPartInfo();
if (stringPartInfo != null) {
final GrExpression expr =
GrIntroduceHandlerBase.processLiteral(
mySettings.getName(), mySettings.getStringPartInfo(), mySettings.getProject());
final Editor editor = PsiUtilBase.findEditor(expr);
if (editor != null) {
editor.getSelectionModel().removeSelection();
editor.getCaretModel().moveToOffset(expr.getTextRange().getEndOffset());
}
}
final GrVariable var = mySettings.getVar();
if (var != null && mySettings.removeLocalVariable()) {
var.delete();
}
fieldConflictsResolver.fix();
}