public static boolean doNeedImport(
@NotNull ImportPath importPath, @Nullable String aliasName, @NotNull JetFile file) {
if (QualifiedNamesUtil.getFirstSegment(importPath.fqnPart().getFqName())
.equals(JavaDescriptorResolver.JAVA_ROOT.getName())) {
FqName withoutJavaRoot = QualifiedNamesUtil.withoutFirstSegment(importPath.fqnPart());
importPath = new ImportPath(withoutJavaRoot, importPath.isAllUnder());
}
if (isImportedByDefault(importPath, null, JetPsiUtil.getFQName(file))) {
return false;
}
List<JetImportDirective> importDirectives = file.getImportDirectives();
if (!importDirectives.isEmpty()) {
// Check if import is already present
for (JetImportDirective directive : importDirectives) {
ImportPath existentImportPath = JetPsiUtil.getImportPath(directive);
if (directive.getAliasName() == null && aliasName == null) {
if (existentImportPath != null
&& QualifiedNamesUtil.isImported(existentImportPath, importPath)) {
return false;
}
}
}
}
return true;
}
protected static PsiElement adjustSibling(
@NotNull Editor editor,
@NotNull LineRange sourceRange,
@NotNull MoveInfo info,
boolean down) {
PsiElement element = down ? sourceRange.lastElement : sourceRange.firstElement;
PsiElement sibling = down ? element.getNextSibling() : element.getPrevSibling();
PsiElement whiteSpaceTestSubject = sibling;
if (sibling == null) {
PsiElement parent = element.getParent();
if (parent != null && isBracelessBlock(parent)) {
whiteSpaceTestSubject = down ? parent.getNextSibling() : parent.getPrevSibling();
}
}
if (whiteSpaceTestSubject instanceof PsiWhiteSpace) {
if (getElementLineCount(whiteSpaceTestSubject, editor) > 1) {
int nearLine = down ? sourceRange.endLine : sourceRange.startLine - 1;
info.toMove = sourceRange;
info.toMove2 = new LineRange(nearLine, nearLine + 1);
info.indentTarget = false;
return null;
}
if (sibling != null) {
sibling = firstNonWhiteElement(sibling, down);
}
}
if (sibling == null) {
JetCallExpression callExpression =
PsiTreeUtil.getParentOfType(element, JetCallExpression.class);
if (callExpression != null) {
JetBlockExpression dslBlock = getDSLLambdaBlock(callExpression, down);
if (PsiTreeUtil.isAncestor(dslBlock, element, false)) {
//noinspection ConstantConditions
PsiElement blockParent = dslBlock.getParent();
return down
? JetPsiUtil.findChildByType(blockParent, JetTokens.RBRACE)
: JetPsiUtil.findChildByType(blockParent, JetTokens.LBRACE);
}
}
info.toMove2 = null;
return null;
}
return sibling;
}
@Nullable
private static JetBlockExpression findClosestBlock(
@NotNull PsiElement anchor, boolean down, boolean strict) {
PsiElement current = PsiTreeUtil.getParentOfType(anchor, JetBlockExpression.class, strict);
while (current != null) {
PsiElement parent = current.getParent();
if (parent instanceof JetClassBody
|| parent instanceof JetClassInitializer
|| parent instanceof JetNamedFunction
|| (parent instanceof JetProperty && !((JetProperty) parent).isLocal())) {
return null;
}
if (parent instanceof JetBlockExpression) return (JetBlockExpression) parent;
PsiElement sibling = down ? current.getNextSibling() : current.getPrevSibling();
if (sibling != null) {
//noinspection unchecked
JetBlockExpression block =
(JetBlockExpression)
JetPsiUtil.getOutermostDescendantElement(sibling, down, CHECK_BLOCK);
if (block != null) return block;
current = sibling;
} else {
current = parent;
}
}
return null;
}
/** Check that import is useless. */
private static boolean isImportedByDefault(
@NotNull ImportPath importPath, @NotNull JetFile jetFile) {
if (importPath.fqnPart().isRoot()) {
return true;
}
if (!importPath.isAllUnder() && !importPath.hasAlias()) {
// Single element import without .* and alias is useless
if (QualifiedNamesUtil.isOneSegmentFQN(importPath.fqnPart())) {
return true;
}
// There's no need to import a declaration from the package of current file
if (JetPsiUtil.getFQName(jetFile).equals(importPath.fqnPart().parent())) {
return true;
}
}
if (isImportedWithKotlinDefault(importPath)) return true;
if (KotlinFrameworkDetector.isJsKotlinModule(jetFile)) {
return isImportedWithJsDefault(importPath);
} else {
return isImportedWithJavaDefault(importPath);
}
}
// TODO: Make it work for properties
public Collection<DeclarationDescriptor> getJetCallableExtensions(
@NotNull Condition<String> acceptedNameCondition,
@NotNull JetSimpleNameExpression expression,
@NotNull ResolveSession resolveSession,
@NotNull GlobalSearchScope searchScope) {
Collection<DeclarationDescriptor> resultDescriptors = new ArrayList<DeclarationDescriptor>();
BindingContext context = ResolveSessionUtils.resolveToExpression(resolveSession, expression);
JetExpression receiverExpression = expression.getReceiverExpression();
if (receiverExpression != null) {
JetType expressionType = context.get(BindingContext.EXPRESSION_TYPE, receiverExpression);
JetScope scope = context.get(BindingContext.RESOLUTION_SCOPE, receiverExpression);
if (expressionType != null && scope != null) {
Collection<String> extensionFunctionsNames = getAllJetExtensionFunctionsNames(searchScope);
Set<FqName> functionFQNs = new java.util.HashSet<FqName>();
// Collect all possible extension function qualified names
for (String name : extensionFunctionsNames) {
if (acceptedNameCondition.value(name)) {
Collection<PsiElement> extensionFunctions =
getJetExtensionFunctionsByName(name, searchScope);
for (PsiElement extensionFunction : extensionFunctions) {
if (extensionFunction instanceof JetNamedFunction) {
functionFQNs.add(JetPsiUtil.getFQName((JetNamedFunction) extensionFunction));
} else if (extensionFunction instanceof PsiMethod) {
FqName functionFQN =
JetFromJavaDescriptorHelper.getJetTopLevelDeclarationFQN(
(PsiMethod) extensionFunction);
if (functionFQN != null) {
functionFQNs.add(functionFQN);
}
}
}
}
}
// Iterate through the function with attempt to resolve found functions
for (FqName functionFQN : functionFQNs) {
for (CallableDescriptor functionDescriptor :
ExpressionTypingUtils.canFindSuitableCall(
functionFQN,
project,
receiverExpression,
expressionType,
scope,
resolveSession.getModuleConfiguration())) {
resultDescriptors.add(functionDescriptor);
}
}
}
}
return resultDescriptors;
}
@Nullable
private static JetBlockExpression getDSLLambdaBlock(@NotNull PsiElement element, boolean down) {
JetCallExpression callExpression =
(JetCallExpression)
JetPsiUtil.getOutermostDescendantElement(element, down, IS_CALL_EXPRESSION);
if (callExpression == null) return null;
List<JetExpression> functionLiterals = callExpression.getFunctionLiteralArguments();
if (functionLiterals.isEmpty()) return null;
return ((JetFunctionLiteralExpression) functionLiterals.get(0)).getBodyExpression();
}
/** Return class names form jet sources in given scope which should be visible as Java classes. */
@NotNull
@Override
public PsiClass[] getClassesByName(
@NotNull @NonNls String name, @NotNull GlobalSearchScope scope) {
List<PsiClass> result = new ArrayList<PsiClass>();
IDELightClassGenerationSupport lightClassGenerationSupport =
IDELightClassGenerationSupport.getInstanceForIDE(project);
MultiMap<String, FqName> packageClasses =
lightClassGenerationSupport.getAllPackageClasses(scope);
// .namespace classes can not be indexed, since they have no explicit declarations
Collection<FqName> fqNames = packageClasses.get(name);
if (!fqNames.isEmpty()) {
for (FqName fqName : fqNames) {
PsiClass psiClass =
JavaElementFinder.getInstance(project).findClass(fqName.getFqName(), scope);
if (psiClass != null) {
result.add(psiClass);
}
}
}
// Quick check for classes from getAllClassNames()
Collection<JetClassOrObject> classOrObjects =
JetShortClassNameIndex.getInstance().get(name, project, scope);
if (classOrObjects.isEmpty()) {
return result.toArray(new PsiClass[result.size()]);
}
for (JetClassOrObject classOrObject : classOrObjects) {
FqName fqName = JetPsiUtil.getFQName(classOrObject);
if (fqName != null) {
assert fqName.shortName().getName().equals(name)
: "A declaration obtained from index has non-matching name:\n"
+ "in index: "
+ name
+ "\n"
+ "declared: "
+ fqName.shortName()
+ "("
+ fqName
+ ")";
PsiClass psiClass =
JavaElementFinder.getInstance(project).findClass(fqName.getFqName(), scope);
if (psiClass != null) {
result.add(psiClass);
}
}
}
return result.toArray(new PsiClass[result.size()]);
}
private static BraceStatus checkForMovableUpClosingBrace(
@NotNull PsiElement closingBrace,
PsiElement block,
@NotNull Editor editor,
@NotNull MoveInfo info) {
//noinspection unchecked
PsiElement prev = JetPsiUtil.getLastChildByType(block, JetExpression.class);
if (prev == null) return BraceStatus.NOT_MOVABLE;
Document doc = editor.getDocument();
info.toMove = new LineRange(closingBrace, closingBrace, doc);
info.toMove2 = new LineRange(prev, prev, doc);
info.indentSource = true;
return BraceStatus.MOVABLE;
}
@NotNull
public Collection<ClassDescriptor> getTopLevelObjectsByName(
@NotNull String name,
@NotNull JetSimpleNameExpression expression,
@NotNull ResolveSession resolveSession,
@NotNull GlobalSearchScope scope) {
BindingContext context = ResolveSessionUtils.resolveToExpression(resolveSession, expression);
JetScope jetScope = context.get(BindingContext.RESOLUTION_SCOPE, expression);
if (jetScope == null) {
return Collections.emptyList();
}
Set<ClassDescriptor> result = Sets.newHashSet();
Collection<JetObjectDeclaration> topObjects =
JetTopLevelShortObjectNameIndex.getInstance().get(name, project, scope);
for (JetObjectDeclaration objectDeclaration : topObjects) {
FqName fqName = JetPsiUtil.getFQName(objectDeclaration);
assert fqName != null
: "Local object declaration in JetTopLevelShortObjectNameIndex:"
+ objectDeclaration.getText();
result.addAll(
ResolveSessionUtils.getClassOrObjectDescriptorsByFqName(resolveSession, fqName, true));
}
for (PsiClass psiClass :
JetFromJavaDescriptorHelper.getCompiledClassesForTopLevelObjects(
project, GlobalSearchScope.allScope(project))) {
String qualifiedName = psiClass.getQualifiedName();
if (qualifiedName != null) {
FqName fqName = new FqName(qualifiedName);
result.addAll(
ResolveSessionUtils.getClassOrObjectDescriptorsByFqName(resolveSession, fqName, true));
}
}
return result;
}
@Nullable
private static LineRange getExpressionTargetRange(
@NotNull Editor editor, @NotNull PsiElement sibling, boolean down) {
if (sibling instanceof JetIfExpression && !down) {
JetExpression elseBranch = ((JetIfExpression) sibling).getElse();
if (elseBranch instanceof JetBlockExpression) {
sibling = elseBranch;
}
}
PsiElement start = sibling;
PsiElement end = sibling;
// moving out of code block
if (sibling.getNode().getElementType() == (down ? JetTokens.RBRACE : JetTokens.LBRACE)) {
PsiElement parent = sibling.getParent();
if (!(parent instanceof JetBlockExpression || parent instanceof JetFunctionLiteral))
return null;
JetBlockExpression newBlock;
if (parent instanceof JetFunctionLiteral) {
//noinspection ConstantConditions
newBlock = findClosestBlock(((JetFunctionLiteral) parent).getBodyExpression(), down, false);
if (!down) {
ASTNode arrow = ((JetFunctionLiteral) parent).getArrowNode();
if (arrow != null) {
end = arrow.getPsi();
}
}
} else {
newBlock = findClosestBlock(sibling, down, true);
}
if (newBlock == null) return null;
if (PsiTreeUtil.isAncestor(newBlock, parent, true)) {
PsiElement outermostParent = JetPsiUtil.getOutermostParent(parent, newBlock, true);
if (down) {
end = outermostParent;
} else {
start = outermostParent;
}
} else {
if (down) {
end = newBlock.getLBrace();
} else {
start = newBlock.getRBrace();
}
}
}
// moving into code block
else {
PsiElement blockLikeElement;
JetBlockExpression dslBlock = getDSLLambdaBlock(sibling, down);
if (dslBlock != null) {
// Use JetFunctionLiteral (since it contains braces)
blockLikeElement = dslBlock.getParent();
} else {
// JetBlockExpression and other block-like elements
blockLikeElement =
JetPsiUtil.getOutermostDescendantElement(sibling, down, CHECK_BLOCK_LIKE_ELEMENT);
}
if (blockLikeElement != null) {
if (down) {
end = JetPsiUtil.findChildByType(blockLikeElement, JetTokens.LBRACE);
if (blockLikeElement instanceof JetFunctionLiteral) {
ASTNode arrow = ((JetFunctionLiteral) blockLikeElement).getArrowNode();
if (arrow != null) {
end = arrow.getPsi();
}
}
} else {
start = JetPsiUtil.findChildByType(blockLikeElement, JetTokens.RBRACE);
}
}
}
return start != null && end != null ? new LineRange(start, end, editor.getDocument()) : null;
}
@NotNull
public Collection<FunctionDescriptor> getTopLevelFunctionDescriptorsByName(
@NotNull String name,
@NotNull JetSimpleNameExpression expression,
@NotNull ResolveSession resolveSession,
@NotNull GlobalSearchScope scope) {
// name parameter can differ from expression.getReferenceName() when expression contains
// completion suffix
Name referenceName =
expression.getIdentifier() == null
? JetPsiUtil.getConventionName(expression)
: Name.identifier(name);
if (referenceName == null || referenceName.toString().isEmpty()) {
return Collections.emptyList();
}
BindingContext context = ResolveSessionUtils.resolveToExpression(resolveSession, expression);
JetScope jetScope = context.get(BindingContext.RESOLUTION_SCOPE, expression);
if (jetScope == null) {
return Collections.emptyList();
}
Set<FunctionDescriptor> result = Sets.newHashSet();
Collection<PsiMethod> topLevelFunctionPrototypes =
JetFromJavaDescriptorHelper.getTopLevelFunctionPrototypesByName(
referenceName.getName(), project, scope);
for (PsiMethod method : topLevelFunctionPrototypes) {
FqName functionFQN = JetFromJavaDescriptorHelper.getJetTopLevelDeclarationFQN(method);
if (functionFQN != null) {
JetImportDirective importDirective =
JetPsiFactory.createImportDirective(project, new ImportPath(functionFQN, false));
Collection<? extends DeclarationDescriptor> declarationDescriptors =
new QualifiedExpressionResolver()
.analyseImportReference(
importDirective,
jetScope,
new BindingTraceContext(),
resolveSession.getModuleConfiguration());
for (DeclarationDescriptor declarationDescriptor : declarationDescriptors) {
if (declarationDescriptor instanceof FunctionDescriptor) {
result.add((FunctionDescriptor) declarationDescriptor);
}
}
}
}
Set<FqName> affectedPackages = Sets.newHashSet();
Collection<JetNamedFunction> jetNamedFunctions =
JetShortFunctionNameIndex.getInstance().get(referenceName.getName(), project, scope);
for (JetNamedFunction jetNamedFunction : jetNamedFunctions) {
PsiFile containingFile = jetNamedFunction.getContainingFile();
if (containingFile instanceof JetFile) {
JetFile jetFile = (JetFile) containingFile;
String packageName = jetFile.getPackageName();
if (packageName != null) {
affectedPackages.add(new FqName(packageName));
}
}
}
for (FqName affectedPackage : affectedPackages) {
NamespaceDescriptor packageDescriptor =
resolveSession.getPackageDescriptorByFqName(affectedPackage);
assert packageDescriptor != null
: "There's a function in stub index with invalid package: " + affectedPackage;
JetScope memberScope = packageDescriptor.getMemberScope();
result.addAll(memberScope.getFunctions(referenceName));
}
return result;
}