public static boolean insertTail(
InsertionContext context, LookupElement item, TailType tailType, boolean hasTail) {
TailType toInsert = tailType;
LookupItem<?> lookupItem = item.as(LookupItem.CLASS_CONDITION_KEY);
if (lookupItem == null
|| lookupItem.getAttribute(LookupItem.TAIL_TYPE_ATTR) != TailType.UNKNOWN) {
if (!hasTail
&& item.getObject() instanceof PsiMethod
&& PsiType.VOID.equals(((PsiMethod) item.getObject()).getReturnType())) {
PsiDocumentManager.getInstance(context.getProject()).commitAllDocuments();
if (psiElement()
.beforeLeaf(psiElement().withText("."))
.accepts(context.getFile().findElementAt(context.getTailOffset() - 1))) {
return false;
}
boolean insertAdditionalSemicolon = true;
final PsiReferenceExpression referenceExpression =
PsiTreeUtil.getTopmostParentOfType(
context.getFile().findElementAt(context.getStartOffset()),
PsiReferenceExpression.class);
if (referenceExpression instanceof PsiMethodReferenceExpression
&& LambdaHighlightingUtil.insertSemicolon(referenceExpression.getParent())) {
insertAdditionalSemicolon = false;
} else if (referenceExpression != null) {
PsiElement parent = referenceExpression.getParent();
if (parent instanceof PsiMethodCallExpression) {
parent = parent.getParent();
}
if (parent instanceof PsiLambdaExpression
&& !LambdaHighlightingUtil.insertSemicolonAfter((PsiLambdaExpression) parent)) {
insertAdditionalSemicolon = false;
}
}
if (insertAdditionalSemicolon) {
toInsert = TailType.SEMICOLON;
}
}
}
toInsert.processTail(context.getEditor(), context.getTailOffset());
return true;
}
public static boolean isMainOrPremainMethod(@NotNull PsiMethod method) {
if (!PsiType.VOID.equals(method.getReturnType())) return false;
String name = method.getName();
if (!("main".equals(name) || "premain".equals(name))) return false;
PsiElementFactory factory = JavaPsiFacade.getInstance(method.getProject()).getElementFactory();
MethodSignature signature = method.getSignature(PsiSubstitutor.EMPTY);
try {
MethodSignature main = createSignatureFromText(factory, "void main(String[] args);");
if (MethodSignatureUtil.areSignaturesEqual(signature, main)) return true;
MethodSignature premain =
createSignatureFromText(
factory, "void premain(String args, java.lang.instrument.Instrumentation i);");
if (MethodSignatureUtil.areSignaturesEqual(signature, premain)) return true;
} catch (IncorrectOperationException e) {
LOG.error(e);
}
return false;
}