private static boolean isInsideCall(KtExpression expression) {
KtElement parent = KtPsiUtil.getParentCallIfPresent(expression);
if (parent instanceof KtBinaryExpression) {
KtToken token = KtPsiUtil.getOperationToken((KtOperationExpression) parent);
if (token == KtTokens.EQ || token == KtTokens.ANDAND || token == KtTokens.OROR) {
// assignment
return false;
}
}
if (parent != null) {
// UGLY HACK
// check there is no casts
PsiElement current = expression;
while (current != parent) {
if (current instanceof KtBinaryExpressionWithTypeRHS) {
return false;
}
current = current.getParent();
}
}
return parent != null;
}
public LazyClassDescriptor(
@NotNull final LazyClassContext c,
@NotNull DeclarationDescriptor containingDeclaration,
@NotNull Name name,
@NotNull final KtClassLikeInfo classLikeInfo) {
super(
c.getStorageManager(),
containingDeclaration,
name,
KotlinSourceElementKt.toSourceElement(classLikeInfo.getCorrespondingClassOrObject()));
this.c = c;
KtClassOrObject classOrObject = classLikeInfo.getCorrespondingClassOrObject();
if (classOrObject != null) {
this.c.getTrace().record(BindingContext.CLASS, classOrObject, this);
}
this.c
.getTrace()
.record(BindingContext.FQNAME_TO_CLASS_DESCRIPTOR, DescriptorUtils.getFqName(this), this);
this.declarationProvider =
c.getDeclarationProviderFactory().getClassMemberDeclarationProvider(classLikeInfo);
StorageManager storageManager = c.getStorageManager();
this.unsubstitutedMemberScope = createMemberScope(c, this.declarationProvider);
this.kind = classLikeInfo.getClassKind();
this.staticScope =
kind == ClassKind.ENUM_CLASS
? new StaticScopeForKotlinEnum(storageManager, this)
: MemberScope.Empty.INSTANCE;
this.typeConstructor = new LazyClassTypeConstructor();
this.isCompanionObject =
classLikeInfo instanceof KtObjectInfo && ((KtObjectInfo) classLikeInfo).isCompanionObject();
KtModifierList modifierList = classLikeInfo.getModifierList();
if (kind.isSingleton()) {
this.modality = Modality.FINAL;
} else {
Modality defaultModality = kind == ClassKind.INTERFACE ? Modality.ABSTRACT : Modality.FINAL;
this.modality =
resolveModalityFromModifiers(modifierList, defaultModality, /* allowSealed = */ true);
}
boolean isLocal = classOrObject != null && KtPsiUtil.isLocal(classOrObject);
Visibility defaultVisibility;
if (kind == ClassKind.ENUM_ENTRY || (kind == ClassKind.OBJECT && isCompanionObject)) {
defaultVisibility = Visibilities.PUBLIC;
} else {
defaultVisibility = Visibilities.DEFAULT_VISIBILITY;
}
this.visibility =
isLocal
? Visibilities.LOCAL
: resolveVisibilityFromModifiers(modifierList, defaultVisibility);
this.isInner = isInnerClass(modifierList) && !ModifiersChecker.isIllegalInner(this);
this.isData = modifierList != null && modifierList.hasModifier(KtTokens.DATA_KEYWORD);
// Annotation entries are taken from both own annotations (if any) and object literal
// annotations (if any)
List<KtAnnotationEntry> annotationEntries = new ArrayList<KtAnnotationEntry>();
if (classOrObject != null && classOrObject.getParent() instanceof KtObjectLiteralExpression) {
// TODO: it would be better to have separate ObjectLiteralDescriptor without so much magic
annotationEntries.addAll(
KtPsiUtilKt.getAnnotationEntries((KtObjectLiteralExpression) classOrObject.getParent()));
}
if (modifierList != null) {
annotationEntries.addAll(modifierList.getAnnotationEntries());
}
if (!annotationEntries.isEmpty()) {
this.annotations =
new LazyAnnotations(
new LazyAnnotationsContext(c.getAnnotationResolver(), storageManager, c.getTrace()) {
@NotNull
@Override
public LexicalScope getScope() {
return getOuterScope();
}
},
annotationEntries);
} else {
this.annotations = Annotations.Companion.getEMPTY();
}
List<KtAnnotationEntry> jetDanglingAnnotations = classLikeInfo.getDanglingAnnotations();
if (jetDanglingAnnotations.isEmpty()) {
this.danglingAnnotations = Annotations.Companion.getEMPTY();
} else {
this.danglingAnnotations =
new LazyAnnotations(
new LazyAnnotationsContext(c.getAnnotationResolver(), storageManager, c.getTrace()) {
@NotNull
@Override
public LexicalScope getScope() {
return getScopeForMemberDeclarationResolution();
}
},
jetDanglingAnnotations);
}
this.companionObjectDescriptor =
storageManager.createNullableLazyValue(
new Function0<LazyClassDescriptor>() {
@Override
public LazyClassDescriptor invoke() {
return computeCompanionObjectDescriptor(getCompanionObjectIfAllowed());
}
});
this.extraCompanionObjectDescriptors =
storageManager.createMemoizedFunction(
new Function1<KtObjectDeclaration, ClassDescriptor>() {
@Override
public ClassDescriptor invoke(KtObjectDeclaration companionObject) {
return computeCompanionObjectDescriptor(companionObject);
}
});
this.forceResolveAllContents =
storageManager.createRecursionTolerantNullableLazyValue(
new Function0<Void>() {
@Override
public Void invoke() {
doForceResolveAllContents();
return null;
}
},
null);
this.resolutionScopesSupport =
new ClassResolutionScopesSupport(
this,
storageManager,
new Function0<LexicalScope>() {
@Override
public LexicalScope invoke() {
return getOuterScope();
}
});
this.parameters =
c.getStorageManager()
.createLazyValue(
new Function0<List<TypeParameterDescriptor>>() {
@Override
public List<TypeParameterDescriptor> invoke() {
KtClassLikeInfo classInfo = declarationProvider.getOwnerInfo();
KtTypeParameterList typeParameterList = classInfo.getTypeParameterList();
if (typeParameterList == null) return Collections.emptyList();
if (classInfo.getClassKind() == ClassKind.ENUM_CLASS) {
c.getTrace().report(TYPE_PARAMETERS_IN_ENUM.on(typeParameterList));
}
List<KtTypeParameter> typeParameters = typeParameterList.getParameters();
if (typeParameters.isEmpty()) return Collections.emptyList();
List<TypeParameterDescriptor> parameters =
new ArrayList<TypeParameterDescriptor>(typeParameters.size());
for (int i = 0; i < typeParameters.size(); i++) {
parameters.add(
new LazyTypeParameterDescriptor(
c, LazyClassDescriptor.this, typeParameters.get(i), i));
}
return parameters;
}
});
this.scopeForInitializerResolution =
storageManager.createLazyValue(
new Function0<LexicalScope>() {
@Override
public LexicalScope invoke() {
return ClassResolutionScopesSupportKt.scopeForInitializerResolution(
LazyClassDescriptor.this,
createInitializerScopeParent(),
classLikeInfo.getPrimaryConstructorParameters());
}
});
}
public KotlinTypeInfo visitWhileExpression(
KtWhileExpression expression,
ExpressionTypingContext contextWithExpectedType,
boolean isStatement) {
if (!isStatement)
return components.dataFlowAnalyzer.illegalStatementType(
expression, contextWithExpectedType, facade);
ExpressionTypingContext context =
contextWithExpectedType
.replaceExpectedType(NO_EXPECTED_TYPE)
.replaceContextDependency(INDEPENDENT);
// Preliminary analysis
PreliminaryLoopVisitor loopVisitor = PreliminaryLoopVisitor.visitLoop(expression);
context =
context.replaceDataFlowInfo(
loopVisitor.clearDataFlowInfoForAssignedLocalVariables(context.dataFlowInfo));
KtExpression condition = expression.getCondition();
// Extract data flow info from condition itself without taking value into account
DataFlowInfo dataFlowInfo = checkCondition(context.scope, condition, context);
KtExpression body = expression.getBody();
KotlinTypeInfo bodyTypeInfo;
DataFlowInfo conditionInfo =
components
.dataFlowAnalyzer
.extractDataFlowInfoFromCondition(condition, true, context)
.and(dataFlowInfo);
if (body != null) {
LexicalWritableScope scopeToExtend =
newWritableScopeImpl(context, "Scope extended in while's condition");
bodyTypeInfo =
components.expressionTypingServices.getBlockReturnedTypeWithWritableScope(
scopeToExtend,
Collections.singletonList(body),
CoercionStrategy.NO_COERCION,
context.replaceDataFlowInfo(conditionInfo));
} else {
bodyTypeInfo = TypeInfoFactoryKt.noTypeInfo(conditionInfo);
}
// Condition is false at this point only if there is no jumps outside
if (!containsJumpOutOfLoop(expression, context)) {
dataFlowInfo =
components
.dataFlowAnalyzer
.extractDataFlowInfoFromCondition(condition, false, context)
.and(dataFlowInfo);
}
// Special case: while (true)
// In this case we must record data flow information at the nearest break / continue and
// .and it with entrance data flow information, because while body until break is executed at
// least once in this case
// See KT-6284
if (body != null && KtPsiUtil.isTrueConstant(condition)) {
// We should take data flow info from the first jump point,
// but without affecting changing variables
dataFlowInfo =
dataFlowInfo.and(
loopVisitor.clearDataFlowInfoForAssignedLocalVariables(
bodyTypeInfo.getJumpFlowInfo()));
}
return components
.dataFlowAnalyzer
.checkType(
bodyTypeInfo.replaceType(components.builtIns.getUnitType()),
expression,
contextWithExpectedType)
.replaceDataFlowInfo(dataFlowInfo);
}
@Override
public <D> void acceptChildren(@NotNull KtVisitor<Void, D> visitor, D data) {
KtPsiUtil.visitChildren(this, visitor, data);
}