private static void makeVariableFinalIfNeeded(
InsertionContext context, @Nullable PsiReferenceExpression ref) {
if (!Registry.is("java.completion.make.outer.variables.final")
|| ref == null
|| PsiUtil.isLanguageLevel8OrHigher(ref)
|| JspPsiUtil.isInJspFile(ref)) {
return;
}
PsiElement target = ref.resolve();
if (target instanceof PsiLocalVariable || target instanceof PsiParameter) {
PsiClass placeClass =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getTailOffset() - 1, PsiClass.class, false);
if (placeClass != null
&& !PsiTreeUtil.isAncestor(placeClass, target, true)
&& !HighlightControlFlowUtil.isReassigned(
(PsiVariable) target,
new HashMap<PsiElement, Collection<ControlFlowUtil.VariableInfo>>())) {
PsiModifierList modifierList = ((PsiVariable) target).getModifierList();
if (modifierList != null) {
modifierList.setModifierProperty(PsiModifier.FINAL, true);
}
}
}
}
public static void addImportForItem(InsertionContext context, PsiClass aClass) {
if (aClass.getQualifiedName() == null) return;
PsiFile file = context.getFile();
int startOffset = context.getStartOffset();
int tail = context.getTailOffset();
int newTail = JavaCompletionUtil.insertClassReference(aClass, file, startOffset, tail);
if (newTail > context.getDocument().getTextLength() || newTail < 0) {
LOG.error(
LogMessageEx.createEvent(
"Invalid offset after insertion ",
"offset="
+ newTail
+ "\n"
+ "start="
+ startOffset
+ "\n"
+ "tail="
+ tail
+ "\n"
+ "file.length="
+ file.getTextLength()
+ "\n"
+ "document="
+ context.getDocument()
+ "\n"
+ DebugUtil.currentStackTrace(),
AttachmentFactory.createAttachment(context.getDocument())));
return;
}
context.setTailOffset(newTail);
JavaCompletionUtil.shortenReference(file, context.getStartOffset());
PostprocessReformattingAspect.getInstance(context.getProject()).doPostponedFormatting();
}
private static boolean isAtTokenNeeded(InsertionContext myContext) {
HighlighterIterator iterator =
((EditorEx) myContext.getEditor())
.getHighlighter()
.createIterator(myContext.getStartOffset());
LOG.assertTrue(iterator.getTokenType() == JavaTokenType.IDENTIFIER);
iterator.retreat();
if (iterator.getTokenType() == TokenType.WHITE_SPACE) iterator.retreat();
return iterator.getTokenType() != JavaTokenType.AT
&& iterator.getTokenType() != JavaTokenType.DOT;
}
public String calcGenerics(@NotNull PsiElement context, InsertionContext insertionContext) {
if (insertionContext.getCompletionChar() == '<') {
return "";
}
assert context.isValid();
if (myDiamond) {
return "<>";
}
if (getObject() instanceof PsiClass) {
PsiClass psiClass = (PsiClass) getObject();
PsiResolveHelper resolveHelper =
JavaPsiFacade.getInstance(psiClass.getProject()).getResolveHelper();
PsiSubstitutor substitutor = getSubstitutor();
StringBuilder builder = new StringBuilder();
for (PsiTypeParameter parameter : psiClass.getTypeParameters()) {
PsiType substitute = substitutor.substitute(parameter);
if (substitute == null
|| (PsiUtil.resolveClassInType(substitute) == parameter
&& resolveHelper.resolveReferencedClass(parameter.getName(), context)
!= CompletionUtil.getOriginalOrSelf(parameter))) {
return "";
}
if (builder.length() > 0) {
builder.append(", ");
}
builder.append(substitute.getCanonicalText());
}
if (builder.length() > 0) {
return "<" + builder + ">";
}
}
return "";
}
private static void qualifyFieldReference(InsertionContext context, PsiField field) {
context.commitDocument();
PsiFile file = context.getFile();
final PsiReference reference = file.findReferenceAt(context.getStartOffset());
if (reference instanceof PsiJavaCodeReferenceElement
&& ((PsiJavaCodeReferenceElement) reference).isQualified()) {
return;
}
PsiClass containingClass = field.getContainingClass();
if (containingClass != null && containingClass.getName() != null) {
OffsetKey oldStart = context.trackOffset(context.getStartOffset(), true);
JavaCompletionUtil.insertClassReference(containingClass, file, context.getStartOffset());
context.getDocument().insertString(context.getOffsetMap().getOffset(oldStart), ".");
PsiDocumentManager.getInstance(context.getProject()).commitDocument(context.getDocument());
}
}
private static boolean insertingAnnotation(InsertionContext context, LookupElement item) {
final Object obj = item.getObject();
if (!(obj instanceof PsiClass) || !((PsiClass) obj).isAnnotationType()) return false;
final Document document = context.getEditor().getDocument();
PsiDocumentManager.getInstance(context.getProject()).commitDocument(document);
final int offset = context.getStartOffset();
final PsiFile file = context.getFile();
if (PsiTreeUtil.findElementOfClassAtOffset(file, offset, PsiImportStatement.class, false)
!= null) return false;
// outside of any class: we are surely inserting an annotation
if (PsiTreeUtil.findElementOfClassAtOffset(file, offset, PsiClass.class, false) == null)
return true;
// the easiest check that there's a @ before the identifier
return PsiTreeUtil.findElementOfClassAtOffset(file, offset, PsiAnnotation.class, false) != null;
}
private static void insertGenerationInfos(
InsertionContext context, List<PsiGenerationInfo<PsiMethod>> infos) {
List<PsiGenerationInfo<PsiMethod>> newInfos =
GenerateMembersUtil.insertMembersAtOffset(
context.getFile(), context.getStartOffset(), infos);
if (!newInfos.isEmpty()) {
final List<PsiElement> elements = new ArrayList<PsiElement>();
for (GenerationInfo member : newInfos) {
if (!(member instanceof TemplateGenerationInfo)) {
final PsiMember psiMember = member.getPsiMember();
if (psiMember != null) {
elements.add(psiMember);
}
}
}
GlobalInspectionContextBase.cleanupElements(
context.getProject(), null, elements.toArray(new PsiElement[elements.size()]));
newInfos.get(0).positionCaret(context.getEditor(), true);
}
}
private boolean shouldQualify(PsiField field, InsertionContext context) {
if (myHelper != null && !myHelper.willBeImported()) {
return true;
}
if (getAttribute(FORCE_QUALIFY) != null) {
return true;
}
PsiReference reference = context.getFile().findReferenceAt(context.getStartOffset());
if (reference instanceof PsiReferenceExpression
&& !((PsiReferenceExpression) reference).isQualified()) {
final PsiVariable target =
JavaPsiFacade.getInstance(context.getProject())
.getResolveHelper()
.resolveReferencedVariable(field.getName(), (PsiElement) reference);
return !field
.getManager()
.areElementsEquivalent(target, CompletionUtil.getOriginalOrSelf(field));
}
return false;
}
private static boolean insertingAnnotationWithParameters(
InsertionContext context, LookupElement item) {
if (insertingAnnotation(context, item)) {
final Document document = context.getEditor().getDocument();
PsiDocumentManager.getInstance(context.getProject()).commitDocument(document);
PsiElement elementAt = context.getFile().findElementAt(context.getStartOffset());
if (elementAt instanceof PsiIdentifier) {
final PsiModifierListOwner parent =
PsiTreeUtil.getParentOfType(
elementAt, PsiModifierListOwner.class, false, PsiCodeBlock.class);
if (parent != null) {
for (PsiMethod m : ((PsiClass) item.getObject()).getMethods()) {
if (!(m instanceof PsiAnnotationMethod)) continue;
final PsiAnnotationMemberValue defaultValue =
((PsiAnnotationMethod) m).getDefaultValue();
if (defaultValue == null) return true;
}
}
}
}
return false;
}
@Override
public void handleInsert(InsertionContext context) {
context
.getDocument()
.replaceString(context.getStartOffset(), context.getTailOffset(), getInsertString());
context.commitDocument();
PsiMethodCallExpression call =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getStartOffset(), PsiMethodCallExpression.class, false);
if (call == null) return;
PsiExpression[] args = call.getArgumentList().getExpressions();
if (args.length != 1 || !(args[0] instanceof PsiMethodCallExpression)) return;
JavaCodeStyleManager.getInstance(context.getProject()).shortenClassReferences(args[0]);
}
public static boolean promptTypeArgs(InsertionContext context, int offset) {
if (offset < 0) {
return false;
}
OffsetKey key = context.trackOffset(offset, false);
PostprocessReformattingAspect.getInstance(context.getProject()).doPostponedFormatting();
offset = context.getOffset(key);
if (offset < 0) {
return false;
}
String open = escapeXmlIfNeeded(context, "<");
context.getDocument().insertString(offset, open);
context.getEditor().getCaretModel().moveToOffset(offset + open.length());
context.getDocument().insertString(offset + open.length(), escapeXmlIfNeeded(context, ">"));
context.setAddCompletionChar(false);
return true;
}
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
&& ((PsiMethod) item.getObject()).getReturnType() == PsiType.VOID) {
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 String escapeXmlIfNeeded(InsertionContext context, String generics) {
if (context.getFile().getViewProvider().getBaseLanguage() == StdLanguages.JSPX) {
return StringUtil.escapeXml(generics);
}
return generics;
}
@Override
public void handleInsert(InsertionContext context) {
context.getDocument().deleteString(context.getStartOffset(), context.getTailOffset());
for (int i = 0; i < myTypeItems.size(); i++) {
PsiTypeLookupItem typeItem = myTypeItems.get(i);
CompletionUtil.emulateInsertion(context, context.getTailOffset(), typeItem);
if (context.getTailOffset() < 0) {
LOG.error("tail offset spoiled by " + typeItem);
return;
}
context.setTailOffset(
getTail(i == myTypeItems.size() - 1)
.processTail(context.getEditor(), context.getTailOffset()));
}
context.setAddCompletionChar(false);
context.commitDocument();
PsiElement leaf = context.getFile().findElementAt(context.getTailOffset() - 1);
if (psiElement()
.withParents(
PsiReferenceParameterList.class,
PsiJavaCodeReferenceElement.class,
PsiNewExpression.class)
.accepts(leaf)) {
ParenthesesInsertHandler.getInstance(myHasParameters).handleInsert(context, this);
myGlobalTail.processTail(context.getEditor(), context.getTailOffset());
}
}
@Override
protected TailType computeTailType(InsertionContext context) {
return context.shouldAddCompletionChar() ? TailType.NONE : myTail;
}
@Override
public void handleInsert(InsertionContext context) {
PsiVariable variable = getObject();
Document document = context.getDocument();
document.replaceString(context.getStartOffset(), context.getTailOffset(), variable.getName());
context.commitDocument();
if (variable instanceof PsiField) {
if (willBeImported()) {
RangeMarker toDelete =
JavaCompletionUtil.insertTemporary(context.getTailOffset(), document, " ");
context.commitDocument();
final PsiReferenceExpression ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getStartOffset(), PsiReferenceExpression.class, false);
if (ref != null) {
ref.bindToElementViaStaticImport(((PsiField) variable).getContainingClass());
PostprocessReformattingAspect.getInstance(ref.getProject()).doPostponedFormatting();
}
if (toDelete.isValid()) {
document.deleteString(toDelete.getStartOffset(), toDelete.getEndOffset());
}
context.commitDocument();
} else if (shouldQualify((PsiField) variable, context)) {
qualifyFieldReference(context, (PsiField) variable);
}
}
PsiReferenceExpression ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getTailOffset() - 1, PsiReferenceExpression.class, false);
if (ref != null) {
JavaCodeStyleManager.getInstance(context.getProject()).shortenClassReferences(ref);
}
ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getTailOffset() - 1, PsiReferenceExpression.class, false);
makeVariableFinalIfNeeded(context, ref);
final char completionChar = context.getCompletionChar();
if (completionChar == '=') {
context.setAddCompletionChar(false);
TailType.EQ.processTail(context.getEditor(), context.getTailOffset());
} else if (completionChar == ','
&& getAttribute(LookupItem.TAIL_TYPE_ATTR) != TailType.UNKNOWN) {
context.setAddCompletionChar(false);
TailType.COMMA.processTail(context.getEditor(), context.getTailOffset());
AutoPopupController.getInstance(context.getProject())
.autoPopupParameterInfo(context.getEditor(), null);
} else if (completionChar == ':') {
context.setAddCompletionChar(false);
TailType.COND_EXPR_COLON.processTail(context.getEditor(), context.getTailOffset());
} else if (completionChar == '.') {
AutoPopupController.getInstance(context.getProject())
.autoPopupMemberLookup(context.getEditor(), null);
} else if (completionChar == '!' && PsiType.BOOLEAN.isAssignableFrom(variable.getType())) {
context.setAddCompletionChar(false);
if (ref != null) {
FeatureUsageTracker.getInstance()
.triggerFeatureUsed(CodeCompletionFeatures.EXCLAMATION_FINISH);
document.insertString(ref.getTextRange().getStartOffset(), "!");
}
}
}
@Override
public void handleInsert(InsertionContext context) {
myImportFixer.handleInsert(context, this);
PsiElement position = context.getFile().findElementAt(context.getStartOffset());
if (position != null) {
int genericsStart = context.getTailOffset();
context
.getDocument()
.insertString(
genericsStart,
JavaCompletionUtil.escapeXmlIfNeeded(context, calcGenerics(position, context)));
JavaCompletionUtil.shortenReference(context.getFile(), genericsStart - 1);
}
int tail = context.getTailOffset();
String braces = StringUtil.repeat("[]", getBracketsCount());
Editor editor = context.getEditor();
if (!braces.isEmpty()) {
if (myAddArrayInitializer) {
context.getDocument().insertString(tail, braces + "{}");
editor.getCaretModel().moveToOffset(tail + braces.length() + 1);
} else {
context.getDocument().insertString(tail, braces);
editor.getCaretModel().moveToOffset(tail + 1);
if (context.getCompletionChar() == '[') {
context.setAddCompletionChar(false);
}
}
} else {
editor.getCaretModel().moveToOffset(tail);
}
editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
InsertHandler handler = getInsertHandler();
if (handler != null) {
//noinspection unchecked
handler.handleInsert(context, this);
}
}
private static void removeLookupString(InsertionContext context) {
context.getDocument().deleteString(context.getStartOffset(), context.getTailOffset());
context.commitDocument();
}
@Override
public void handleInsert(InsertionContext context) {
final Document document = context.getEditor().getDocument();
document.replaceString(context.getStartOffset(), context.getTailOffset(), ";");
final InsertionContext qualifierContext =
CompletionUtil.emulateInsertion(context, context.getStartOffset(), myQualifier);
OffsetKey oldStart = context.trackOffset(context.getStartOffset(), false);
int start =
CharArrayUtil.shiftForward(
context.getDocument().getCharsSequence(), context.getStartOffset(), " \t\n");
if (shouldParenthesizeQualifier(context.getFile(), start, qualifierContext.getTailOffset())) {
final String space =
CodeStyleSettingsManager.getSettings(qualifierContext.getProject())
.SPACE_WITHIN_PARENTHESES
? " "
: "";
document.insertString(start, "(" + space);
document.insertString(qualifierContext.getTailOffset(), space + ")");
}
final char atTail = document.getCharsSequence().charAt(context.getTailOffset() - 1);
if (atTail != ';') {
LOG.error(
LogMessageEx.createEvent(
"Unexpected character",
"atTail="
+ atTail
+ "\n"
+ "offset="
+ context.getTailOffset()
+ "\n"
+ "item="
+ this
+ "\n"
+ "item.class="
+ this.getClass()
+ "\n"
+ DebugUtil.currentStackTrace(),
AttachmentFactory.createAttachment(context.getDocument())));
}
document.replaceString(context.getTailOffset() - 1, context.getTailOffset(), ".");
CompletionUtil.emulateInsertion(getDelegate(), context.getTailOffset(), context);
context.commitDocument();
int formatStart = context.getOffset(oldStart);
int formatEnd = context.getTailOffset();
if (formatStart >= 0 && formatEnd >= 0) {
CodeStyleManager.getInstance(context.getProject())
.reformatText(context.getFile(), formatStart, formatEnd);
}
}
public void handleInsert(
final InsertionContext context, final JavaPsiClassReferenceElement item) {
final char c = context.getCompletionChar();
int offset = context.getTailOffset() - 1;
final PsiFile file = context.getFile();
if (PsiTreeUtil.findElementOfClassAtOffset(file, offset, PsiImportStatementBase.class, false)
!= null) {
final PsiJavaCodeReferenceElement ref =
PsiTreeUtil.findElementOfClassAtOffset(
file, offset, PsiJavaCodeReferenceElement.class, false);
final String qname = item.getQualifiedName();
if (qname != null && (ref == null || !qname.equals(ref.getCanonicalText()))) {
AllClassesGetter.INSERT_FQN.handleInsert(context, item);
}
return;
}
PsiElement position = file.findElementAt(offset);
PsiClass psiClass = item.getObject();
final Project project = context.getProject();
final boolean annotation = insertingAnnotation(context, item);
final Editor editor = context.getEditor();
if (c == '#') {
context.setLaterRunnable(
new Runnable() {
public void run() {
new CodeCompletionHandlerBase(CompletionType.BASIC).invokeCompletion(project, editor);
}
});
} else if (c == '.' && PsiTreeUtil.getParentOfType(position, PsiParameterList.class) == null) {
AutoPopupController.getInstance(context.getProject())
.autoPopupMemberLookup(context.getEditor(), null);
}
if (position != null) {
PsiElement parent = position.getParent();
if (parent instanceof PsiJavaCodeReferenceElement) {
final PsiJavaCodeReferenceElement ref = (PsiJavaCodeReferenceElement) parent;
if (PsiTreeUtil.getParentOfType(position, PsiDocTag.class) != null
&& ref.isReferenceTo(psiClass)) {
return;
}
}
}
OffsetKey refEnd = context.trackOffset(context.getTailOffset(), false);
boolean fillTypeArgs = context.getCompletionChar() == '<';
if (fillTypeArgs) {
context.setAddCompletionChar(false);
}
if (shouldInsertParentheses(psiClass, position)) {
if (ConstructorInsertHandler.insertParentheses(context, item, psiClass, false)) {
fillTypeArgs |=
psiClass.hasTypeParameters()
&& PsiUtil.getLanguageLevel(file).isAtLeast(LanguageLevel.JDK_1_5);
}
} else if (insertingAnnotationWithParameters(context, item)) {
JavaCompletionUtil.insertParentheses(context, item, false, true);
AutoPopupController.getInstance(project).autoPopupParameterInfo(editor, null);
}
LOG.assertTrue(context.getTailOffset() >= 0);
String docText = context.getDocument().getText();
DefaultInsertHandler.addImportForItem(context, item);
if (context.getTailOffset() < 0) {
LOG.error(
LogMessageEx.createEvent(
"Tail offset degraded after insertion",
"start=" + context.getStartOffset(),
new Attachment(
context.getFile().getViewProvider().getVirtualFile().getPath(), docText)));
}
if (annotation) {
// Check if someone inserts annotation class that require @
PsiElement elementAt = file.findElementAt(context.getStartOffset());
final PsiElement parentElement = elementAt != null ? elementAt.getParent() : null;
if (elementAt instanceof PsiIdentifier
&& (PsiTreeUtil.getParentOfType(elementAt, PsiAnnotationParameterList.class) != null
|| parentElement instanceof PsiErrorElement
&& parentElement.getParent()
instanceof PsiJavaFile // top level annotation without @
)
&& isAtTokenNeeded(context)) {
int expectedOffsetForAtToken = elementAt.getTextRange().getStartOffset();
context.getDocument().insertString(expectedOffsetForAtToken, "@");
}
}
if (fillTypeArgs) {
PostprocessReformattingAspect.getInstance(project).doPostponedFormatting();
int typeArgs = context.getOffset(refEnd);
if (typeArgs >= 0) {
context.getDocument().insertString(typeArgs, "<>");
context.getEditor().getCaretModel().moveToOffset(typeArgs + 1);
}
}
}
public static void insertParentheses(
final InsertionContext context,
final LookupElement item,
boolean overloadsMatter,
boolean hasParams,
final boolean forceClosingParenthesis) {
final Editor editor = context.getEditor();
final char completionChar = context.getCompletionChar();
final PsiFile file = context.getFile();
final TailType tailType =
completionChar == '('
? TailType.NONE
: completionChar == ':'
? TailType.COND_EXPR_COLON
: LookupItem.handleCompletionChar(context.getEditor(), item, completionChar);
final boolean hasTail = tailType != TailType.NONE && tailType != TailType.UNKNOWN;
final boolean smart = completionChar == Lookup.COMPLETE_STATEMENT_SELECT_CHAR;
if (completionChar == '('
|| completionChar == '.'
|| completionChar == ','
|| completionChar == ';'
|| completionChar == ':'
|| completionChar == ' ') {
context.setAddCompletionChar(false);
}
if (hasTail) {
hasParams = false;
}
final boolean needRightParenth =
forceClosingParenthesis
|| !smart
&& (CodeInsightSettings.getInstance().AUTOINSERT_PAIR_BRACKET
|| !hasParams && completionChar != '(');
context.commitDocument();
final CommonCodeStyleSettings styleSettings = context.getCodeStyleSettings();
final PsiElement elementAt = file.findElementAt(context.getStartOffset());
if (elementAt == null || !(elementAt.getParent() instanceof PsiMethodReferenceExpression)) {
ParenthesesInsertHandler.getInstance(
hasParams,
styleSettings.SPACE_BEFORE_METHOD_CALL_PARENTHESES,
styleSettings.SPACE_WITHIN_METHOD_CALL_PARENTHESES && hasParams,
needRightParenth,
styleSettings.METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE)
.handleInsert(context, item);
}
if (hasParams) {
// Invoke parameters popup
AutoPopupController.getInstance(file.getProject())
.autoPopupParameterInfo(editor, overloadsMatter ? null : (PsiElement) item.getObject());
}
if (smart || !needRightParenth || !insertTail(context, item, tailType, hasTail)) {
return;
}
if (completionChar == '.') {
AutoPopupController.getInstance(file.getProject())
.autoPopupMemberLookup(context.getEditor(), null);
} else if (completionChar == ',') {
AutoPopupController.getInstance(file.getProject())
.autoPopupParameterInfo(context.getEditor(), null);
}
}