public static boolean isValidName(
final Project project, final PsiElement psiElement, final String newName) {
if (newName == null || newName.length() == 0) {
return false;
}
final Condition<String> inputValidator =
RenameInputValidatorRegistry.getInputValidator(psiElement);
if (inputValidator != null) {
return inputValidator.value(newName);
}
if (psiElement instanceof PsiFile || psiElement instanceof PsiDirectory) {
return newName.indexOf('\\') < 0 && newName.indexOf('/') < 0;
}
if (psiElement instanceof PomTargetPsiElement) {
return !StringUtil.isEmptyOrSpaces(newName);
}
final PsiFile file = psiElement.getContainingFile();
final Language elementLanguage = psiElement.getLanguage();
final Language fileLanguage = file == null ? null : file.getLanguage();
Language language =
fileLanguage == null
? elementLanguage
: fileLanguage.isKindOf(elementLanguage) ? fileLanguage : elementLanguage;
return LanguageNamesValidation.INSTANCE
.forLanguage(language)
.isIdentifier(newName.trim(), project);
}
@NotNull
protected UsageInfo[] findUsages() {
final PsiManager manager = myMethod.getManager();
final GlobalSearchScope searchScope = GlobalSearchScope.allScope(manager.getProject());
final List<UsageInfo> usages = new ArrayList<UsageInfo>();
for (PsiReference ref : ReferencesSearch.search(myMethod, searchScope, false)) {
final PsiElement element = ref.getElement();
if (element instanceof PsiReferenceExpression) {
boolean isInternal = PsiTreeUtil.isAncestor(myMethod, element, true);
usages.add(new MethodCallUsageInfo((PsiReferenceExpression) element, isInternal));
} else if (element instanceof PsiDocTagValue) {
usages.add(new JavadocUsageInfo(((PsiDocTagValue) element)));
} else {
throw new UnknownReferenceTypeException(element.getLanguage());
}
}
if (myTargetClass.isInterface()) {
addInheritorUsages(myTargetClass, searchScope, usages);
}
final PsiCodeBlock body = myMethod.getBody();
if (body != null) {
body.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitNewExpression(PsiNewExpression expression) {
if (MoveInstanceMembersUtil.getClassReferencedByThis(expression) != null) {
usages.add(new InternalUsageInfo(expression));
}
super.visitNewExpression(expression);
}
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
if (MoveInstanceMembersUtil.getClassReferencedByThis(expression) != null) {
usages.add(new InternalUsageInfo(expression));
} else if (!expression.isQualified()) {
final PsiElement resolved = expression.resolve();
if (myTargetVariable.equals(resolved)) {
usages.add(new InternalUsageInfo(expression));
}
}
super.visitReferenceExpression(expression);
}
});
}
return usages.toArray(new UsageInfo[usages.size()]);
}
private static boolean isJavaUsage(UsageInfo info) {
final PsiElement element = info.getElement();
if (element == null) return false;
return element.getLanguage() == StdLanguages.JAVA;
}