private static boolean isStatementPosition(PsiElement position) {
if (PsiTreeUtil.getNonStrictParentOfType(position, PsiLiteralExpression.class, PsiComment.class)
!= null) {
return false;
}
if (psiElement()
.withSuperParent(2, PsiConditionalExpression.class)
.andNot(psiElement().insideStarting(psiElement(PsiConditionalExpression.class)))
.accepts(position)) {
return false;
}
if (END_OF_BLOCK.getValue().isAcceptable(position, position)
&& PsiTreeUtil.getParentOfType(position, PsiCodeBlock.class, true, PsiMember.class)
!= null) {
return true;
}
if (psiElement()
.withParents(
PsiReferenceExpression.class, PsiExpressionStatement.class, PsiIfStatement.class)
.andNot(psiElement().afterLeaf("."))
.accepts(position)) {
PsiElement stmt = position.getParent().getParent();
PsiIfStatement ifStatement = (PsiIfStatement) stmt.getParent();
if (ifStatement.getElseBranch() == stmt || ifStatement.getThenBranch() == stmt) {
return true;
}
}
return false;
}
private static void addUnfinishedMethodTypeParameters(
PsiElement position, final Consumer<LookupElement> result) {
final ProcessingContext context = new ProcessingContext();
if (psiElement()
.inside(
psiElement(PsiTypeElement.class)
.afterLeaf(
psiElement()
.withText(">")
.withParent(
psiElement(PsiTypeParameterList.class)
.withParent(PsiErrorElement.class)
.save("typeParameterList"))))
.accepts(position, context)) {
final PsiTypeParameterList list = (PsiTypeParameterList) context.get("typeParameterList");
PsiElement current = list.getParent().getParent();
if (current instanceof PsiField) {
current = current.getParent();
}
if (current instanceof PsiClass) {
for (PsiTypeParameter typeParameter : list.getTypeParameters()) {
result.consume(new JavaPsiClassReferenceElement(typeParameter));
}
}
}
}
private static TailType getReturnTail(PsiElement position) {
PsiElement scope = position;
while (true) {
if (scope instanceof PsiFile || scope instanceof PsiClassInitializer) {
return TailType.NONE;
}
if (scope instanceof PsiMethod) {
final PsiMethod method = (PsiMethod) scope;
if (method.isConstructor() || PsiType.VOID.equals(method.getReturnType())) {
return TailType.SEMICOLON;
}
return TailType.HUMBLE_SPACE_BEFORE_WORD;
}
if (scope instanceof PsiLambdaExpression) {
final PsiType returnType =
LambdaUtil.getFunctionalInterfaceReturnType(((PsiLambdaExpression) scope));
if (PsiType.VOID.equals(returnType)) {
return TailType.SEMICOLON;
}
return TailType.HUMBLE_SPACE_BEFORE_WORD;
}
scope = scope.getParent();
}
}
public static boolean isInstanceofPlace(PsiElement position) {
PsiElement prev = PsiTreeUtil.prevVisibleLeaf(position);
if (prev == null) return false;
PsiElement expr = PsiTreeUtil.getParentOfType(prev, PsiExpression.class);
if (expr != null && expr.getTextRange().getEndOffset() == prev.getTextRange().getEndOffset()) {
return true;
}
if (position instanceof PsiIdentifier && position.getParent() instanceof PsiLocalVariable) {
PsiType type = ((PsiLocalVariable) position.getParent()).getType();
if (type instanceof PsiClassType && ((PsiClassType) type).resolve() == null) {
return true;
}
}
return false;
}
private static boolean isInsideInheritorClass(PsiElement position) {
if (position.getParent() instanceof PsiJavaCodeReferenceElement) {
final PsiElement qualifier =
((PsiJavaCodeReferenceElement) position.getParent()).getQualifier();
if (qualifier instanceof PsiJavaCodeReferenceElement) {
final PsiElement qualifierClass = ((PsiJavaCodeReferenceElement) qualifier).resolve();
if (qualifierClass instanceof PsiClass && ((PsiClass) qualifierClass).isInterface()) {
PsiElement parent = position;
while ((parent = PsiTreeUtil.getParentOfType(parent, PsiClass.class, true)) != null) {
if (PsiUtil.getEnclosingStaticElement(position, (PsiClass) parent) == null
&& ((PsiClass) parent).isInheritor((PsiClass) qualifierClass, true)) {
return true;
}
}
}
}
}
return false;
}
private static boolean isInsideQualifierClass(PsiElement position) {
if (position.getParent() instanceof PsiJavaCodeReferenceElement) {
final PsiElement qualifier =
((PsiJavaCodeReferenceElement) position.getParent()).getQualifier();
if (qualifier instanceof PsiJavaCodeReferenceElement) {
final PsiElement qualifierClass = ((PsiJavaCodeReferenceElement) qualifier).resolve();
if (qualifierClass instanceof PsiClass) {
PsiElement parent = position;
final PsiManager psiManager = position.getManager();
while ((parent = PsiTreeUtil.getParentOfType(parent, PsiClass.class, true)) != null) {
if (psiManager.areElementsEquivalent(parent, qualifierClass)) {
return true;
}
}
}
}
}
return false;
}
public static boolean isInsideParameterList(PsiElement position) {
PsiElement prev = PsiTreeUtil.prevVisibleLeaf(position);
PsiModifierList modifierList = PsiTreeUtil.getParentOfType(prev, PsiModifierList.class);
if (modifierList != null) {
if (PsiTreeUtil.isAncestor(modifierList, position, false)) {
return false;
}
PsiElement parent = modifierList.getParent();
return parent instanceof PsiParameterList
|| parent instanceof PsiParameter && parent.getParent() instanceof PsiParameterList;
}
return INSIDE_PARAMETER_LIST.accepts(position);
}