FIR checker: report uninitialized member/extension properties

This commit is contained in:
Jinseong Jeon
2021-02-23 14:33:44 -08:00
committed by Dmitriy Novozhilov
parent e8028e7825
commit e009b71f88
63 changed files with 487 additions and 230 deletions
@@ -8,8 +8,8 @@ class KotlinType
class KClassValue(value: Value) : ConstantValue<KClassValue.Value>(value) {
sealed class Value {
data class NormalClass(val value: ClassLiteralValue) : Value() {
val classId: ClassId
val arrayDimensions: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val classId: ClassId<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val arrayDimensions: Int<!>
}
data class LocalClass(val type: KotlinType) : Value()
@@ -2,6 +2,6 @@ annotation class A() {
<!ANNOTATION_CLASS_MEMBER!><!PRIMARY_CONSTRUCTOR_DELEGATION_CALL_EXPECTED!>constructor(s: Nothing?)<!> {}<!>
<!ANNOTATION_CLASS_MEMBER!>init {}<!>
<!ANNOTATION_CLASS_MEMBER!>fun foo() {}<!>
<!ANNOTATION_CLASS_MEMBER!>val bar: Nothing?<!>
<!ANNOTATION_CLASS_MEMBER, MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val bar: Nothing?<!>
<!ANNOTATION_CLASS_MEMBER!>val baz get() = Unit<!>
}
@@ -10,6 +10,6 @@ class A {
class B {
val field: String = ""
val x: Int
<!MUST_BE_INITIALIZED!>val x: Int<!>
get() = field.<!UNRESOLVED_REFERENCE!>length<!> // should be an error
}
@@ -15,5 +15,5 @@ class SomeClass : SomeInterface {
get() = true
set(value) {}
var fau: Double
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var fau: Double<!>
}
@@ -14,10 +14,10 @@ class A {
}
class Property {
var var1: String
var var2: String
var var3: Int
<!EXPOSED_PROPERTY_TYPE{LT}!>var <!EXPOSED_PROPERTY_TYPE{PSI}!>var4<!>: A.AInnerPrivate<!>
var var5: A.AInnerPublic
<!EXPOSED_PROPERTY_TYPE{LT}!>var <!EXPOSED_PROPERTY_TYPE{PSI}!>var6<!>: A.AInnerProtectedEnum<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var var1: String<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var var2: String<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var var3: Int<!>
<!EXPOSED_PROPERTY_TYPE{LT}, MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var <!EXPOSED_PROPERTY_TYPE{PSI}!>var4<!>: A.AInnerPrivate<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var var5: A.AInnerPublic<!>
<!EXPOSED_PROPERTY_TYPE{LT}, MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var <!EXPOSED_PROPERTY_TYPE{PSI}!>var6<!>: A.AInnerProtectedEnum<!>
}
@@ -1,5 +1,5 @@
private var Int.readOnlyWrapper: CharSequence? get() = null
private var Int.mutableWrapper: CharSequence? get() = null
<!MUST_BE_INITIALIZED!>private var Int.readOnlyWrapper: CharSequence?<!> get() = null
<!MUST_BE_INITIALIZED!>private var Int.mutableWrapper: CharSequence?<!> get() = null
fun main(x: Int) {
val x = if (x > 1) x::readOnlyWrapper else x::mutableWrapper
@@ -319,6 +319,10 @@ object DIAGNOSTICS_LIST : DiagnosticList() {
val PROPERTY_INITIALIZER_IN_INTERFACE by error<FirSourceElement, KtExpression>()
val PROPERTY_WITH_NO_TYPE_NO_INITIALIZER by error<FirSourceElement, KtProperty>(PositioningStrategy.DECLARATION_SIGNATURE)
val MUST_BE_INITIALIZED by error<FirSourceElement, KtProperty>(PositioningStrategy.DECLARATION_SIGNATURE)
val MUST_BE_INITIALIZED_OR_BE_ABSTRACT by error<FirSourceElement, KtProperty>(PositioningStrategy.DECLARATION_SIGNATURE)
val EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT by error<FirSourceElement, KtProperty>(PositioningStrategy.DECLARATION_SIGNATURE)
val BACKING_FIELD_IN_INTERFACE by error<FirSourceElement, KtProperty>(PositioningStrategy.DECLARATION_SIGNATURE)
val EXTENSION_PROPERTY_WITH_BACKING_FIELD by error<FirSourceElement, KtExpression>()
val PROPERTY_INITIALIZER_NO_BACKING_FIELD by error<FirSourceElement, KtExpression>()
@@ -215,6 +215,9 @@ object FirErrors {
val ABSTRACT_PROPERTY_WITH_INITIALIZER by error0<FirSourceElement, KtExpression>()
val PROPERTY_INITIALIZER_IN_INTERFACE by error0<FirSourceElement, KtExpression>()
val PROPERTY_WITH_NO_TYPE_NO_INITIALIZER by error0<FirSourceElement, KtProperty>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE)
val MUST_BE_INITIALIZED by error0<FirSourceElement, KtProperty>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE)
val MUST_BE_INITIALIZED_OR_BE_ABSTRACT by error0<FirSourceElement, KtProperty>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE)
val EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT by error0<FirSourceElement, KtProperty>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE)
val BACKING_FIELD_IN_INTERFACE by error0<FirSourceElement, KtProperty>(SourceElementPositioningStrategies.DECLARATION_SIGNATURE)
val EXTENSION_PROPERTY_WITH_BACKING_FIELD by error0<FirSourceElement, KtExpression>()
val PROPERTY_INITIALIZER_NO_BACKING_FIELD by error0<FirSourceElement, KtExpression>()
@@ -22,13 +22,25 @@ abstract class EventOccurrencesRangeInfo<E : EventOccurrencesRangeInfo<E, K>, K
map: PersistentMap<K, EventOccurrencesRange> = persistentMapOf()
) : ControlFlowInfo<E, K, EventOccurrencesRange>(map) {
override fun merge(other: E): E {
override fun merge(other: E): E =
operation(other, EventOccurrencesRange::or)
fun plus(other: E): E =
when {
isEmpty() -> other
other.isEmpty() ->
@Suppress("UNCHECKED_CAST")
this as E
else -> operation(other, EventOccurrencesRange::plus)
}
private inline fun operation(other: E, op: (EventOccurrencesRange, EventOccurrencesRange) -> EventOccurrencesRange): E {
@Suppress("UNCHECKED_CAST")
var result = this as E
for (symbol in keys.union(other.keys)) {
val kind1 = this[symbol] ?: EventOccurrencesRange.ZERO
val kind2 = other[symbol] ?: EventOccurrencesRange.ZERO
result = result.put(symbol, kind1 or kind2)
result = result.put(symbol, op.invoke(kind1, kind2))
}
return result
}
@@ -19,9 +19,45 @@ import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyAccessor
import org.jetbrains.kotlin.fir.types.FirImplicitTypeRef
import org.jetbrains.kotlin.lexer.KtTokens
internal fun isInsideExpectClass(containingClass: FirRegularClass, context: CheckerContext): Boolean =
isInsideSpecificClass(containingClass, context) { klass -> klass.isExpect }
internal fun isInsideExternalClass(containingClass: FirRegularClass, context: CheckerContext): Boolean =
isInsideSpecificClass(containingClass, context) { klass -> klass.isExternal }
// Note that the class that contains the currently visiting declaration will *not* be in the context's containing declarations *yet*.
internal fun isInsideExpectClass(containingDeclaration: FirRegularClass, context: CheckerContext): Boolean =
containingDeclaration.isExpect || context.containingDeclarations.asReversed().any { it is FirRegularClass && it.isExpect }
private inline fun isInsideSpecificClass(
containingClass: FirRegularClass,
context: CheckerContext,
specificStatus: (FirRegularClass) -> Boolean
): Boolean =
specificStatus.invoke(containingClass) ||
context.containingDeclarations.asReversed().any { it is FirRegularClass && specificStatus.invoke(it) }
internal fun FirMemberDeclaration.isEffectivelyExpect(
containingClass: FirRegularClass?,
modifierList: FirModifierList? = null,
context: CheckerContext,
): Boolean {
val isExpect = this.isExpect || modifierList?.modifiers?.any { it.token == KtTokens.EXPECT_KEYWORD } == true
if (isExpect) return true
return containingClass != null && isInsideExpectClass(containingClass, context)
}
internal fun FirMemberDeclaration.isEffectivelyExternal(
containingClass: FirRegularClass?,
modifierList: FirModifierList? = null,
context: CheckerContext,
): Boolean {
val isExternal = this.isExternal || modifierList?.modifiers?.any { it.token == KtTokens.EXTERNAL_KEYWORD } == true
if (isExternal) return true
// NB: [MemberDescriptor.isEffectivelyExternal] checks property accessors for property and vice versa.
// But, raw FIR creation already did such upward/downward propagation of modifiers.
return containingClass != null && isInsideExternalClass(containingClass, context)
}
// TODO: check class too
internal fun checkExpectDeclarationVisibilityAndBody(
@@ -45,17 +81,19 @@ internal fun checkProperty(
containingClass: FirRegularClass?,
property: FirProperty,
modifierList: FirModifierList?,
isInitialized: Boolean,
reporter: DiagnosticReporter,
context: CheckerContext
) {
checkPropertyInitializer(containingClass, modifierList, property, reporter, context)
checkPropertyInitializer(containingClass, property, modifierList, isInitialized, reporter, context)
checkPropertyAccessors(property, reporter, context)
}
private fun checkPropertyInitializer(
containingClass: FirRegularClass?,
modifierList: FirModifierList?,
property: FirProperty,
modifierList: FirModifierList?,
isInitialized: Boolean,
reporter: DiagnosticReporter,
context: CheckerContext
) {
@@ -78,7 +116,7 @@ private fun checkPropertyInitializer(
}
}
val isExpect = property.isExpect || modifierList?.modifiers?.any { it.token == KtTokens.EXPECT_KEYWORD } == true
val isExpect = property.isEffectivelyExpect(containingClass, modifierList, context)
when {
property.initializer != null -> {
@@ -112,18 +150,16 @@ private fun checkPropertyInitializer(
}
}
else -> {
val isExternal = property.isExternal || modifierList?.modifiers?.any { it.token == KtTokens.EXTERNAL_KEYWORD } == true
// TODO: need to analyze class anonymous initializer to see if the property is initialized there.
val isUninitialized = false
if (backingFieldRequired && !inInterface && !property.isLateInit && !isExpect && isUninitialized && !isExternal) {
val isExternal = property.isEffectivelyExternal(containingClass, modifierList, context)
if (backingFieldRequired && !inInterface && !property.isLateInit && !isExpect && !isInitialized && !isExternal) {
property.source?.let {
if (property.receiverTypeRef != null && !property.hasAccessorImplementation) {
// reporter.reportOn(it, FirErrors.EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT, context)
} else {
if (containingClass != null || property.hasAccessorImplementation) {
// reporter.reportOn(it, FirErrors.MUST_BE_INITIALIZED, context)
reporter.reportOn(it, FirErrors.EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT, context)
} else { // TODO: can be suppressed not to report diagnostics about no body
if (containingClass == null || property.hasAccessorImplementation) {
reporter.reportOn(it, FirErrors.MUST_BE_INITIALIZED, context)
} else {
// reporter.reportOn(it, FirErrors.MUST_BE_INITIALIZED_OR_BE_ABSTRACT, context)
reporter.reportOn(it, FirErrors.MUST_BE_INITIALIZED_OR_BE_ABSTRACT, context)
}
}
}
@@ -148,5 +184,4 @@ private val FirProperty.hasAccessorImplementation: Boolean
get() = (getter !is FirDefaultPropertyAccessor && getter?.hasBody == true) ||
(setter !is FirDefaultPropertyAccessor && setter?.hasBody == true)
internal val FirClass<*>.canHaveOpenMembers: Boolean get() = modality() != Modality.FINAL || classKind == ClassKind.ENUM_CLASS
@@ -5,9 +5,13 @@
package org.jetbrains.kotlin.fir.analysis.checkers.declaration
import org.jetbrains.kotlin.contracts.description.EventOccurrencesRange
import org.jetbrains.kotlin.contracts.description.isDefinitelyVisited
import org.jetbrains.kotlin.descriptors.Visibilities
import org.jetbrains.kotlin.fir.FirFakeSourceElementKind
import org.jetbrains.kotlin.fir.FirSourceElement
import org.jetbrains.kotlin.fir.analysis.cfa.PropertyInitializationInfo
import org.jetbrains.kotlin.fir.analysis.cfa.PropertyInitializationInfoCollector
import org.jetbrains.kotlin.fir.analysis.checkers.context.CheckerContext
import org.jetbrains.kotlin.fir.analysis.diagnostics.DiagnosticReporter
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
@@ -15,22 +19,126 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.reportOn
import org.jetbrains.kotlin.fir.declarations.*
import org.jetbrains.kotlin.fir.declarations.impl.FirDefaultPropertyAccessor
import org.jetbrains.kotlin.fir.expressions.FirExpression
import org.jetbrains.kotlin.fir.resolve.dfa.cfg.ControlFlowGraph
import org.jetbrains.kotlin.fir.resolve.dfa.cfg.NormalPath
import org.jetbrains.kotlin.fir.resolve.dfa.controlFlowGraph
import org.jetbrains.kotlin.fir.symbols.impl.FirPropertyAccessorSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirPropertySymbol
import org.jetbrains.kotlin.lexer.KtTokens
// See old FE's [DeclarationsChecker]
object FirMemberPropertyChecker : FirRegularClassChecker() {
override fun check(declaration: FirRegularClass, context: CheckerContext, reporter: DiagnosticReporter) {
for (member in declaration.declarations) {
if (member is FirProperty) {
checkProperty(declaration, member, context, reporter)
val memberPropertySymbols = declaration.declarations.filterIsInstance<FirProperty>().map { it.symbol }.toSet()
val initializedInConstructor =
mutableMapOf<FirPropertySymbol, EventOccurrencesRange>().withDefault { EventOccurrencesRange.ZERO }
val initializedInInitOrOtherProperty =
mutableMapOf<FirPropertySymbol, EventOccurrencesRange>().withDefault { EventOccurrencesRange.ZERO }
// If all member properties have its own initializer, we don't need to collect property initialization info at all.
if (memberPropertySymbols.any { it.fir.initializer == null }) {
collectPropertyInitialization(declaration, memberPropertySymbols, initializedInConstructor, initializedInInitOrOtherProperty)
}
for (propertySymbol in memberPropertySymbols) {
val property = propertySymbol.fir
val isInitialized =
property.initializer != null ||
initializedInConstructor.getValue(propertySymbol).isDefinitelyVisited() ||
initializedInInitOrOtherProperty.getValue(propertySymbol).isDefinitelyVisited()
checkProperty(declaration, property, isInitialized, context, reporter)
}
}
private fun collectPropertyInitialization(
klass: FirRegularClass,
memberPropertySymbols: Set<FirPropertySymbol>,
initializedInConstructor: MutableMap<FirPropertySymbol, EventOccurrencesRange>,
initializedInInitOrOtherProperty: MutableMap<FirPropertySymbol, EventOccurrencesRange>
) {
// A property is known to be initialized only if it is initialized
// 1) with its own initializing expression;
// 2) at every class constructor;
// 3) at any of class's anonymous initializers; or
// 4) at other property's initializing expression
// 2) Property can be initialized at constructors. Since it's unknown what constructor will be used, the property can be determined
// as initialized only if it is initialized at every constructor. We should consider a delegated constructor, e.g.,
// constructor() { x = ... }
// constructor(...): this() { ... } // x will be initialized via this() delegation
// We need to topologically sort constructors so that we can process delegated ones before the use sites.
// 3) Property can be initialized at any of class's anonymous initializers (all of initializers will be executed), e.g.,
// init { x = ... }
// ...
// init { y = ... }
// 4) Property can be initialized at other property's initializing expression too, e.g.,
// val initX = inlineMe { x = ... } // where inlineMe returns the value of the last expression of the lambda
// To handle the delegated constructor call, we need a cache from constructor to (analyzed) property init info.
val constructorToData =
mutableMapOf<FirConstructor, PropertyInitializationInfo>().withDefault { PropertyInitializationInfo.EMPTY }
fun collectInfoFromGraph(
graph: ControlFlowGraph,
map: MutableMap<FirPropertySymbol, EventOccurrencesRange>,
acc: (EventOccurrencesRange, EventOccurrencesRange) -> EventOccurrencesRange,
delegatedConstructor: FirConstructor? = null,
) {
val delegatedInfo = delegatedConstructor?.let { constructorToData.getValue(it) } ?: PropertyInitializationInfo.EMPTY
val data = PropertyInitializationInfoCollector(memberPropertySymbols).getData(graph)
val infoAtExitNode = data[graph.exitNode]?.get(NormalPath) ?: PropertyInitializationInfo.EMPTY
// NB: it's not [merge], which is conducted at merging points, such as loop condition or when conditions.
// Rather, delegated constructor call is the predecessor of the current constructor call, so we should accumulate.
val info = delegatedInfo.plus(infoAtExitNode)
if (graph.declaration is FirConstructor) {
constructorToData.putIfAbsent(graph.declaration as FirConstructor, info)
}
for (propertySymbol in memberPropertySymbols) {
if (map.containsKey(propertySymbol)) {
// Accumulation:
// range join for class constructors, range plus for class's anonymous initializers and property initializations
map[propertySymbol] = acc.invoke(map[propertySymbol]!!, info[propertySymbol] ?: EventOccurrencesRange.ZERO)
} else {
// Initial assignment.
// NB: we should not use `acc` here to not weaken ranges. For example, if we visit one and only constructor where
// a property of interest is correctly initialized (a.k.a. [EXACTLY_ONCE]), and if `acc` is ...Range::or,
// merging with the default [ZERO] makes the result [AT_MOST_ONCE], which will be regarded as uninitialized.
map[propertySymbol] = info[propertySymbol] ?: EventOccurrencesRange.ZERO
}
}
}
val constructorGraphs = klass.constructorsSortedByDelegation.mapNotNull { it.controlFlowGraphReference?.controlFlowGraph }
for (graph in constructorGraphs) {
collectInfoFromGraph(
graph,
initializedInConstructor,
EventOccurrencesRange::or,
(graph.declaration as? FirConstructor)?.delegatedThisConstructor
)
}
val initGraphs = klass.anonymousInitializers.mapNotNull { it.controlFlowGraphReference?.controlFlowGraph }
for (graph in initGraphs) {
collectInfoFromGraph(graph, initializedInInitOrOtherProperty, EventOccurrencesRange::plus)
}
val propertyInitGraphs = memberPropertySymbols.mapNotNull { it.fir.controlFlowGraphReference?.controlFlowGraph }
for (graph in propertyInitGraphs) {
collectInfoFromGraph(graph, initializedInInitOrOtherProperty, EventOccurrencesRange::plus)
}
}
private fun checkProperty(
containingDeclaration: FirRegularClass,
property: FirProperty,
isInitialized: Boolean,
context: CheckerContext,
reporter: DiagnosticReporter
) {
@@ -40,7 +148,7 @@ object FirMemberPropertyChecker : FirRegularClassChecker() {
// So, our source of truth should be the full modifier list retrieved from the source.
val modifierList = with(FirModifierList) { property.source.getModifierList() }
checkProperty(containingDeclaration, property, modifierList, reporter, context)
checkProperty(containingDeclaration, property, modifierList, isInitialized, reporter, context)
checkExpectDeclarationVisibilityAndBody(property, source, modifierList, reporter, context)
val hasAbstractModifier = modifierList?.modifiers?.any { it.token == KtTokens.ABSTRACT_KEYWORD } == true
@@ -28,7 +28,7 @@ object FirTopLevelPropertyChecker : FirFileChecker() {
// So, our source of truth should be the full modifier list retrieved from the source.
val modifierList = with(FirModifierList) { source.getModifierList() }
checkProperty(null, property, modifierList, reporter, context)
checkProperty(null, property, modifierList, property.initializer != null, reporter, context)
checkExpectDeclarationVisibilityAndBody(property, source, modifierList, reporter, context)
}
}
@@ -75,6 +75,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXPOSED_SUPER_CLA
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXPOSED_SUPER_INTERFACE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXPOSED_TYPEALIAS_EXPANDED_TYPE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXPOSED_TYPE_PARAMETER_BOUND
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EXTENSION_PROPERTY_WITH_BACKING_FIELD
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.FORBIDDEN_VARARG_PARAMETER_TYPE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.FUNCTION_DECLARATION_WITH_NO_NAME
@@ -101,6 +102,8 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.MANY_COMPANION_OB
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.MISSING_VAL_ON_ANNOTATION_PARAMETER
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.NESTED_CLASS_NOT_ALLOWED
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.MULTIPLE_VARARG_PARAMETERS
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.MUST_BE_INITIALIZED
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.MUST_BE_INITIALIZED_OR_BE_ABSTRACT
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.NONE_APPLICABLE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.NON_ABSTRACT_FUNCTION_WITH_NO_BODY
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.NON_FINAL_MEMBER_IN_FINAL_CLASS
@@ -471,16 +474,19 @@ class FirDefaultErrorMessages : DefaultErrorMessages.Extension {
map.put(PRIVATE_PROPERTY_IN_INTERFACE, "Abstract property in an interface cannot be private")
map.put(ABSTRACT_PROPERTY_WITH_INITIALIZER, "Property with initializer cannot be abstract")
map.put(EXTENSION_PROPERTY_WITH_BACKING_FIELD, "Extension property cannot be initialized because it has no backing field")
map.put(PROPERTY_INITIALIZER_NO_BACKING_FIELD, "Initializer is not allowed here because this property has no backing field")
map.put(PROPERTY_INITIALIZER_IN_INTERFACE, "Property initializers are not allowed in interfaces")
map.put(
PROPERTY_WITH_NO_TYPE_NO_INITIALIZER,
"This property must either have a type annotation, be initialized or be delegated"
)
map.put(MUST_BE_INITIALIZED, "Property must be initialized")
map.put(MUST_BE_INITIALIZED_OR_BE_ABSTRACT, "Property must be initialized or be abstract")
map.put(EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT, "Extension property must have accessors or be abstract")
map.put(BACKING_FIELD_IN_INTERFACE, "Property in an interface cannot have a backing field")
map.put(EXTENSION_PROPERTY_WITH_BACKING_FIELD, "Extension property cannot be initialized because it has no backing field")
map.put(PROPERTY_INITIALIZER_NO_BACKING_FIELD, "Initializer is not allowed here because this property has no backing field")
map.put(ABSTRACT_DELEGATED_PROPERTY, "Delegated property cannot be abstract")
map.put(DELEGATED_PROPERTY_IN_INTERFACE, "Delegated properties are not allowed in interfaces")
@@ -13,6 +13,7 @@ import org.jetbrains.kotlin.fir.declarations.builder.FirRegularClassBuilder
import org.jetbrains.kotlin.fir.declarations.builder.FirTypeParameterBuilder
import org.jetbrains.kotlin.fir.declarations.impl.FirFileImpl
import org.jetbrains.kotlin.fir.declarations.impl.FirRegularClassImpl
import org.jetbrains.kotlin.fir.references.FirResolvedNamedReference
import org.jetbrains.kotlin.fir.symbols.impl.FirAnonymousObjectSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirClassSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirRegularClassSymbol
@@ -117,8 +118,34 @@ val FirClassSymbol<*>.superConeTypes
val FirClass<*>.superConeTypes get() = superTypeRefs.mapNotNull { it.coneTypeSafe<ConeClassLikeType>() }
val FirClass<*>.anonymousInitializers: List<FirAnonymousInitializer>
get() = declarations.filterIsInstance<FirAnonymousInitializer>()
val FirClass<*>.constructors: List<FirConstructor>
get() = declarations.filterIsInstance<FirConstructor>()
val FirConstructor.delegatedThisConstructor: FirConstructor?
get() = delegatedConstructor?.takeIf { it.isThis }
?.let { (it.calleeReference as? FirResolvedNamedReference)?.resolvedSymbol?.fir as? FirConstructor }
private object ConstructorDelegationComparator : Comparator<FirConstructor> {
override fun compare(p0: FirConstructor?, p1: FirConstructor?): Int {
if (p0 == null && p1 == null) return 0
if (p0 == null) return -1
if (p1 == null) return 1
if (p0.delegatedThisConstructor == p1) return 1
if (p1.delegatedThisConstructor == p0) return -1
// If neither is a delegation to each other, the order doesn't matter.
// Here we return 0 to preserve the original order.
return 0
}
}
val FirClass<*>.constructorsSortedByDelegation: List<FirConstructor>
get() = constructors.sortedWith(ConstructorDelegationComparator)
fun FirClass<*>.getPrimaryConstructorIfAny(): FirConstructor? =
declarations.filterIsInstance<FirConstructor>().firstOrNull()?.takeIf { it.isPrimary }
constructors.firstOrNull()?.takeIf { it.isPrimary }
fun FirRegularClass.collectEnumEntries(): Collection<FirEnumEntry> {
assert(classKind == ClassKind.ENUM_CLASS)
+3
View File
@@ -4,6 +4,9 @@ compiler/testData/cli/jvm/firError.kt:5:13: error: x must be initialized before
compiler/testData/cli/jvm/firError.kt:10:16: error: public subclass exposes its private supertype 'Private'
class Public : Private() {
^
compiler/testData/cli/jvm/firError.kt:11:5: error: property must be initialized or be abstract
val x: Private
^
compiler/testData/cli/jvm/firError.kt:11:9: error: public property exposes its private type 'Private'
val x: Private
^
+8 -8
View File
@@ -1,17 +1,17 @@
// FILE: b.kt
package MyPackage
//properties
val a: Int
<!MUST_BE_INITIALIZED!>val a: Int<!>
val a1: Int = 1
abstract val a2: Int
abstract val a3: Int = 1
var b: Int private set
<!MUST_BE_INITIALIZED!>var b: Int<!> private set
var b1: Int = 0; private set
abstract var b2: Int private set
abstract var b3: Int = 0; private set
var c: Int set(v: Int) { field = v }
<!MUST_BE_INITIALIZED!>var c: Int<!> set(v: Int) { field = v }
var c1: Int = 0; set(v: Int) { field = v }
abstract var c2: Int set(v: Int) { field = v }
abstract var c3: Int = 0; set(v: Int) { field = v }
@@ -28,19 +28,19 @@ package MyPackage
abstract fun j() {}
//property accessors
var i: Int abstract get abstract set
<!MUST_BE_INITIALIZED!>var i: Int<!> abstract get abstract set
var i1: Int = 0; abstract get abstract set
var j: Int get() = i; abstract set
<!MUST_BE_INITIALIZED!>var j: Int<!> get() = i; abstract set
var j1: Int = 0; get() = i; abstract set
var k: Int abstract set
<!MUST_BE_INITIALIZED!>var k: Int<!> abstract set
var k1: Int = 0; abstract set
var l: Int abstract get abstract set
<!MUST_BE_INITIALIZED!>var l: Int<!> abstract get abstract set
var l1: Int = 0; abstract get abstract set
var n: Int abstract get abstract set(v: Int) {}
<!MUST_BE_INITIALIZED!>var n: Int<!> abstract get abstract set(v: Int) {}
// FILE: c.kt
//creating an instance
@@ -2,17 +2,17 @@ package abstract
abstract class MyAbstractClass() {
//properties
val a: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val a: Int<!>
val a1: Int = 1
abstract val a2: Int
abstract val a3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>1<!>
var b: Int private set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var b: Int<!> private set
var b1: Int = 0; private set
abstract var b2: Int <!PRIVATE_SETTER_FOR_ABSTRACT_PROPERTY!>private<!> set
abstract var b3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>0<!>; <!PRIVATE_SETTER_FOR_ABSTRACT_PROPERTY!>private<!> set
var c: Int set(v: Int) { field = v }
<!MUST_BE_INITIALIZED!>var c: Int<!> set(v: Int) { field = v }
var c1: Int = 0; set(v: Int) { field = v }
abstract var c2: Int <!ABSTRACT_PROPERTY_WITH_SETTER!>set(v: Int) { field = v }<!>
abstract var c3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>0<!>; <!ABSTRACT_PROPERTY_WITH_SETTER!>set(v: Int) { field = v }<!>
@@ -29,17 +29,18 @@ abstract class MyAbstractClass() {
<!ABSTRACT_FUNCTION_WITH_BODY!>abstract<!> fun j() {}
//property accessors
var i: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var i: Int<!> abstract get abstract set
var i1: Int = 0; abstract get abstract set
var j: Int get() = i; abstract set
var j1: Int get() = i; abstract set
<!MUST_BE_INITIALIZED!>var j: Int<!> get() = i; abstract set
<!MUST_BE_INITIALIZED!>var j1: Int<!> get() = i; abstract set
var k: Int abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var k: Int<!> abstract set
var k1: Int = 0; abstract set
var l: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var l: Int<!> abstract get abstract set
var l1: Int = 0; abstract get abstract set
var n: Int abstract get abstract set(v: Int) {}
<!MUST_BE_INITIALIZED!>var n: Int<!> abstract get abstract set(v: Int) {}
}
+8 -8
View File
@@ -2,17 +2,17 @@ package abstract
class MyClass() {
//properties
val a: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val a: Int<!>
val a1: Int = 1
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> val a2: Int
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> val a3: Int = 1
var b: Int private set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var b: Int<!> private set
var b1: Int = 0; private set
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> var b2: Int private set
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> var b3: Int = 0; private set
var c: Int set(v: Int) { field = v }
<!MUST_BE_INITIALIZED!>var c: Int<!> set(v: Int) { field = v }
var c1: Int = 0; set(v: Int) { field = v }
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> var c2: Int set(v: Int) { field = v }
<!ABSTRACT_PROPERTY_IN_NON_ABSTRACT_CLASS!>abstract<!> var c3: Int = 0; set(v: Int) { field = v }
@@ -29,17 +29,17 @@ class MyClass() {
<!ABSTRACT_FUNCTION_IN_NON_ABSTRACT_CLASS, ABSTRACT_FUNCTION_WITH_BODY!>abstract<!> fun j() {}
//property accessors
var i: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var i: Int<!> abstract get abstract set
var i1: Int = 0; abstract get abstract set
var j: Int get() = i; abstract set
<!MUST_BE_INITIALIZED!>var j: Int<!> get() = i; abstract set
var j1: Int = 0; get() = i; abstract set
var k: Int abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var k: Int<!> abstract set
var k1: Int = 0; abstract set
var l: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var l: Int<!> abstract get abstract set
var l1: Int = 0; abstract get abstract set
var n: Int abstract get abstract set(v: Int) {}
<!MUST_BE_INITIALIZED!>var n: Int<!> abstract get abstract set(v: Int) {}
}
+1 -1
View File
@@ -19,7 +19,7 @@ class Foo() : WithPC0, <!SYNTAX!>this<!>() {
}
class WithCPI_Dup(x : Int) {
var x : Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var x : Int<!>
}
class WithCPI(x : Int) {
@@ -1,19 +0,0 @@
// See KT-13997
class Foo {
var bar: Int // Ok
external get
external set
}
class Bar {
val foo: Int // Ok
external get
var baz: Int
external get
var gav: Int
external set
}
@@ -1,3 +1,4 @@
// FIR_IDENTICAL
// See KT-13997
class Foo {
@@ -1,29 +0,0 @@
class X {
val x : Int
}
open class Y() {
val x : Int = 2
}
class Y1 {
val x : Int get() = 1
}
class Z : Y() {
}
//KT-650 Prohibit creating class without constructor.
class MyIterable<T> : Iterable<T>
{
override fun iterator(): Iterator<T> = MyIterator()
inner class MyIterator : Iterator<T>
{
override fun hasNext(): Boolean = false
override fun next(): T {
throw UnsupportedOperationException()
}
}
}
@@ -1,3 +1,4 @@
// FIR_IDENTICAL
class X {
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val x : Int<!>
}
@@ -1,7 +1,7 @@
package bar
@file:foo
val prop
<!MUST_BE_INITIALIZED!>@file:foo
val prop<!>
@file:[bar baz]
fun func() {}
@@ -6,7 +6,7 @@ class My(val v: Int) {
var y: Int
set(arg) { field = arg }
var z: Int
<!MUST_BE_INITIALIZED!>var z: Int<!>
set(arg) { field = arg }
// Ok: initializer available
@@ -4,7 +4,7 @@ abstract class My(val v: Int) {
open var y: Int
open var z: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>open var z: Int<!>
// Ok: initializer available
open var w: Int = v
@@ -159,7 +159,7 @@ class AnonymousInitializers(var a: String, val b: String) {
}
}
val o: String
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val o: String<!>
init {
if (1 < 3) {
o = "a"
@@ -196,7 +196,7 @@ open class Open(a: Int, w: Int) {}
class LocalValsVsProperties(val a: Int, w: Int) : Open(a, w) {
val x : Int
val y : Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val y : Int<!>
init {
x = 1
val b = x
@@ -279,7 +279,7 @@ fun foo() {
}
class TestObjectExpression() {
val a : Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val a : Int<!>
fun foo() {
val a = object {
val x : Int
@@ -306,7 +306,7 @@ class TestObjectExpression() {
object TestObjectDeclaration {
val x : Int
val y : Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val y : Int<!>
init {
x = 1
}
@@ -83,7 +83,7 @@ class My {
}
}
val top: Int
<!MUST_BE_INITIALIZED!>val top: Int<!>
fun init() {
top = 1
@@ -1,5 +1,5 @@
class A(val next: A? = null) {
val x: String
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val x: String<!>
init {
next?.x = "a"
}
@@ -1,5 +1,5 @@
class Outer {
val outerProp: String
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val outerProp: String<!>
inner class Inner(inner: Inner, outer: Outer) {
val innerProp: String
init {
@@ -4,17 +4,17 @@ package abstract
enum class MyEnum() {
INSTANCE;
//properties
val a: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val a: Int<!>
val a1: Int = 1
abstract val a2: Int
abstract val a3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>1<!>
var b: Int private set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var b: Int<!> private set
var b1: Int = 0; private set
abstract var b2: Int <!PRIVATE_SETTER_FOR_ABSTRACT_PROPERTY!>private<!> set
abstract var b3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>0<!>; <!PRIVATE_SETTER_FOR_ABSTRACT_PROPERTY!>private<!> set
var c: Int set(v: Int) { field = v }
<!MUST_BE_INITIALIZED!>var c: Int<!> set(v: Int) { field = v }
var c1: Int = 0; set(v: Int) { field = v }
abstract var c2: Int <!ABSTRACT_PROPERTY_WITH_SETTER!>set(v: Int) { field = v }<!>
abstract var c3: Int = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>0<!>; <!ABSTRACT_PROPERTY_WITH_SETTER!>set(v: Int) { field = v }<!>
@@ -31,17 +31,17 @@ enum class MyEnum() {
<!ABSTRACT_FUNCTION_WITH_BODY!>abstract<!> fun j() {}
//property accessors
var i: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var i: Int<!> abstract get abstract set
var i1: Int = 0; abstract get abstract set
var j: Int get() = i; abstract set
<!MUST_BE_INITIALIZED!>var j: Int<!> get() = i; abstract set
var j1: Int = 0; get() = i; abstract set
var k: Int abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var k: Int<!> abstract set
var k1: Int = 0; abstract set
var l: Int abstract get abstract set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var l: Int<!> abstract get abstract set
var l1: Int = 0; abstract get abstract set
var n: Int abstract get abstract set(v: Int) {}
}
<!MUST_BE_INITIALIZED!>var n: Int<!> abstract get abstract set(v: Int) {}
@@ -37,7 +37,7 @@ fun test() {
val Int.abs : Int
get() = if (this > 0) this else -this;
val <T> T.foo : T
<!EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT!>val <T> T.foo : T<!>
fun Int.foo() = this
@@ -1,17 +0,0 @@
package h
class Square() {
var size : Double =
<!UNRESOLVED_REFERENCE!>set<!>(<!UNRESOLVED_REFERENCE!>value<!>) {
<!SYNTAX!>$area<!> <!SYNTAX!>= size * size<!>
}
var area : Double
private set
}
fun main() {
val s = Square()
s.size = 2.0
}
@@ -1,3 +1,4 @@
// FIR_IDENTICAL
package h
class Square() {
@@ -1 +1 @@
val <T : <!UNRESOLVED_REFERENCE!>KClass<T>.something<!>> abc
<!MUST_BE_INITIALIZED!>val <T : <!UNRESOLVED_REFERENCE!>KClass<T>.something<!>> abc<!>
@@ -3,8 +3,8 @@ abstract class Test() {
abstract val x1 : Int get
abstract val x2 : Int <!ABSTRACT_PROPERTY_WITH_GETTER!>get() = 1<!>
val a : Int
val b : Int get
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val a : Int<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val b : Int<!> get
val c = 1
val c1 = 1
@@ -15,7 +15,7 @@ abstract class Test() {
get() { return 1 }
val c4 : Int
get() = 1
val c5 : Int
<!MUST_BE_INITIALIZED!>val c5 : Int<!>
get() = field + 1
abstract var y : Int
@@ -26,19 +26,19 @@ abstract class Test() {
abstract var y5 : Int <!ABSTRACT_PROPERTY_WITH_SETTER!>set(x) {}<!> <!ABSTRACT_PROPERTY_WITH_GETTER!>get() = 1<!>
abstract var y6 : Int <!ABSTRACT_PROPERTY_WITH_SETTER!>set(x) {}<!>
var v : Int
var v1 : Int get
var v2 : Int get set
var v3 : Int get() = 1; set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var v : Int<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var v1 : Int<!> get
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var v2 : Int<!> get set
<!MUST_BE_INITIALIZED!>var v3 : Int<!> get() = 1; set
var v4 : Int get() = 1; set(x){}
var v5 : Int get() = 1; set(x){field = x}
var v6 : Int get() = field + 1; set(x){}
<!MUST_BE_INITIALIZED!>var v5 : Int<!> get() = 1; set(x){field = x}
<!MUST_BE_INITIALIZED!>var v6 : Int<!> get() = field + 1; set(x){}
abstract val v7 : Int get
abstract var v8 : Int get set
var v9 : Int set
var v10 : Int get
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var v9 : Int<!> set
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var v10 : Int<!> get
abstract val v11 : Int abstract get
abstract var v12 : Int abstract get abstract set
@@ -6,7 +6,7 @@ abstract class A() {
abstract <!REDUNDANT_MODIFIER!>open<!> fun g()
<!INCOMPATIBLE_MODIFIERS!>final<!> <!INCOMPATIBLE_MODIFIERS!>open<!> fun h() {}
open var r: String
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>open var r: String<!>
get
abstract protected set
}
@@ -0,0 +1,69 @@
// !LANGUAGE: +MultiPlatformProjects
// !DIAGNOSTICS: -UNUSED_PARAMETER
// MODULE: m1-common
// FILE: common.kt
import kotlin.reflect.KProperty
fun <T> lazy(initializer: () -> T): Lazy<T> = <!UNRESOLVED_REFERENCE!>TODO<!>()
interface Lazy<out T> {
operator fun getValue(thisRef: Any?, property: KProperty<*>): T = <!UNRESOLVED_REFERENCE!>TODO<!>()
}
expect class OuterClass {
class NestedClass {
class DeepNested {
class Another {
fun f(s: String)
val p: Int
val c: Int = <!EXPECTED_PROPERTY_INITIALIZER!>1<!>
val a: Int by <!EXPECTED_DELEGATED_PROPERTY!>lazy { 1 }<!>
}
}
}
inner class InnerClass {
fun f(x: Int)
val p: String
}
companion object
}
expect class OuterClassWithNamedCompanion {
companion object Factory
}
expect object OuterObject {
object NestedObject
}
// MODULE: m2-jvm(m1-common)
// FILE: jvm.kt
actual class OuterClass {
actual class NestedClass {
actual class DeepNested {
actual class Another {
actual fun f(s: String) {}
actual val p: Int = 42
actual val c: Int = 2
actual val a: Int = 3
}
}
}
actual inner class InnerClass {
actual fun f(x: Int) {}
actual val p: String = ""
}
actual companion object
}
actual class OuterClassWithNamedCompanion {
actual companion object Factory
}
actual object OuterObject {
actual object NestedObject
}
@@ -1,7 +1,13 @@
// FIR_IDENTICAL
// !LANGUAGE: +MultiPlatformProjects
// !DIAGNOSTICS: -UNUSED_PARAMETER
// MODULE: m1-common
// FILE: common.kt
import kotlin.reflect.KProperty
fun <T> lazy(initializer: () -> T): Lazy<T> = <!UNRESOLVED_REFERENCE!>TODO<!>()
interface Lazy<out T> {
operator fun getValue(thisRef: Any?, property: KProperty<*>): T = <!UNRESOLVED_REFERENCE!>TODO<!>()
}
expect class OuterClass {
class NestedClass {
@@ -9,6 +15,8 @@ expect class OuterClass {
class Another {
fun f(s: String)
val p: Int
val c: Int = <!EXPECTED_PROPERTY_INITIALIZER, EXPECTED_PROPERTY_INITIALIZER{JVM}!>1<!>
val a: Int <!EXPECTED_DELEGATED_PROPERTY, EXPECTED_DELEGATED_PROPERTY{JVM}!>by lazy { 1 }<!>
}
}
}
@@ -38,6 +46,8 @@ actual class OuterClass {
actual class Another {
actual fun f(s: String) {}
actual val p: Int = 42
actual val c: Int = 2
actual val a: Int = 3
}
}
}
@@ -1,6 +1,15 @@
// -- Module: <m1-common> --
package
public fun </*0*/ T> lazy(/*0*/ initializer: () -> T): Lazy<T>
public interface Lazy</*0*/ out T> {
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public open operator fun getValue(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.reflect.KProperty<*>): T
public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
}
public final expect class OuterClass {
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
@@ -31,6 +40,8 @@ public final expect class OuterClass {
public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
public final expect class Another {
public expect final val a: kotlin.Int
public expect final val c: kotlin.Int = 1
public expect final val p: kotlin.Int
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public final expect fun f(/*0*/ s: kotlin.String): kotlin.Unit
@@ -68,6 +79,15 @@ public expect object OuterObject {
// -- Module: <m2-jvm> --
package
public fun </*0*/ T> lazy(/*0*/ initializer: () -> T): Lazy<T>
public interface Lazy</*0*/ out T> {
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public open operator fun getValue(/*0*/ thisRef: kotlin.Any?, /*1*/ property: kotlin.reflect.KProperty<*>): T
public open override /*1*/ /*fake_override*/ fun hashCode(): kotlin.Int
public open override /*1*/ /*fake_override*/ fun toString(): kotlin.String
}
public final actual class OuterClass {
public constructor OuterClass()
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
@@ -104,6 +124,8 @@ public final actual class OuterClass {
public final actual class Another {
public constructor Another()
public actual final val a: kotlin.Int = 3
public actual final val c: kotlin.Int = 2
public actual final val p: kotlin.Int = 42
public open override /*1*/ /*fake_override*/ fun equals(/*0*/ other: kotlin.Any?): kotlin.Boolean
public final actual fun f(/*0*/ s: kotlin.String): kotlin.Unit
@@ -37,7 +37,7 @@ class MyIllegalClass3() : MyTrait, MyAbstractClass() {
class MyIllegalClass4() : MyTrait, MyAbstractClass() {
fun foo() {}
val pr : Unit
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val pr : Unit<!>
override fun other() {}
override val otherPr : Int = 1
}
@@ -1,25 +0,0 @@
val String.test1: Int
var String.test2: Int
var String.test3: Int; public set
class C {
val String.test1: Int
var String.test2: Int
var String.test3: Int; public set
}
interface I {
val String.test1: Int
var String.test2: Int
var String.test3: Int; public set
}
abstract class A {
val String.test1: Int
var String.test2: Int
var String.test3: Int; public set
abstract val String.testA1: Int
abstract var String.testA2: Int
}
@@ -1,3 +1,4 @@
// FIR_IDENTICAL
<!EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT!>val String.test1: Int<!>
<!EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT!>var String.test2: Int<!>
@@ -5,7 +5,7 @@ var x
q checkType { _<Int>() }
}
var noSetter
<!MUST_BE_INITIALIZED!>var noSetter<!>
get() = 1
@@ -1,11 +0,0 @@
var x: Int
fun foo(f: Boolean) {
try {
if (f) {
x = 0
}
}
finally {
fun bar() {}
}
}
@@ -1,3 +1,4 @@
// FIR_IDENTICAL
<!MUST_BE_INITIALIZED!>var x: Int<!>
fun foo(f: Boolean) {
try {
@@ -5,7 +5,7 @@ class A(val w: Char) {
val z: Int
val v = -1
val uninitialized: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
val overinitialized: Int
constructor(): this('a') {
@@ -5,7 +5,7 @@ class A {
val z: Int
val v = -1
val uninitialized: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
val overinitialized: Int
constructor() {
@@ -1,5 +1,5 @@
class A0 {
val x: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val x: Int<!>
constructor() {
if (1 == 1) {
return
@@ -12,7 +12,7 @@ class A0 {
}
class A1 {
val x: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val x: Int<!>
constructor() {
if (1 == 1) {
return
@@ -8,7 +8,7 @@ class A(val w: Int) {
val v = -1
val useInitialized = useUnitialized + v + w
val uninitialized: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
constructor(): this(1) {
x + y + v + uninitialized + w
@@ -9,7 +9,11 @@ class A {
val useInitialized = useUnitialized + v
val uninitialized: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
constructor(x: String): this() {
x + y + v + uninitialized
}
constructor() {
x = 1
@@ -30,10 +34,6 @@ class A {
x + y + v + uninitialized
}
constructor(x: String): this() {
x + y + v + uninitialized
}
//anonymous
init {
y
@@ -11,6 +11,10 @@ class A {
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val uninitialized: Int<!>
constructor(x: String): this() {
x + y + v + uninitialized
}
constructor() {
x = 1
y = 2
@@ -30,10 +34,6 @@ class A {
x + y + v + <!UNINITIALIZED_VARIABLE!>uninitialized<!>
}
constructor(x: String): this() {
x + y + v + uninitialized
}
//anonymous
init {
<!UNINITIALIZED_VARIABLE, UNINITIALIZED_VARIABLE!>y<!>
@@ -3,5 +3,5 @@ expect val bar1 = <!EXPECTED_PROPERTY_INITIALIZER!>42<!>
expect class Baz1
actual fun foo2() = 42
actual val bar2: Int
<!MUST_BE_INITIALIZED!>actual val bar2: Int<!>
actual interface Baz2
@@ -83,7 +83,7 @@ fun unknownRun(block: () -> Unit) = block()
class DefiniteInitializationInInitSection {
val x: Int
val y: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val y: Int<!>
init {
myRun { x = 42 }
@@ -60,7 +60,7 @@ fun nestedIndefiniteAssignment() {
}
class InitializationForbiddenInNonInitSection {
val x: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val x: Int<!>
fun setup() {
myRun { x = 42 }
@@ -8,8 +8,8 @@ abstract class Base() {
<!ABSTRACT_FUNCTION_WITH_BODY!>abstract<!> fun foo() = {}
<!NON_ABSTRACT_FUNCTION_WITH_NO_BODY!>fun boo() : Unit<!>
abstract val a = <!ABSTRACT_PROPERTY_WITH_INITIALIZER!>""<!>
val b
var d
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val b<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var d<!>
}
class Impl : Base() {
@@ -34,11 +34,11 @@ fun case_4() {
// TESTCASE NUMBER: 5
class case_5 {
val value_1: Int
val value_2: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val value_1: Int<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>val value_2: Int<!>
val value_3: Int
var value_4: Int
var value_5: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var value_4: Int<!>
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var value_5: Int<!>
init {
funWithAtMostOnceCallsInPlace { value_1 = 1 }
funWithUnknownCallsInPlace { value_2 = 1 }
@@ -34,7 +34,7 @@ fun case_2(value_1: Any?) {
// TESTCASE NUMBER: 3
class case_3(value_1: Any?) {
var value_2: Int
<!MUST_BE_INITIALIZED_OR_BE_ABSTRACT!>var value_2: Int<!>
init {
if (value_1 is String) {
@@ -911,6 +911,24 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
token,
)
}
add(FirErrors.MUST_BE_INITIALIZED) { firDiagnostic ->
MustBeInitializedImpl(
firDiagnostic as FirPsiDiagnostic<*>,
token,
)
}
add(FirErrors.MUST_BE_INITIALIZED_OR_BE_ABSTRACT) { firDiagnostic ->
MustBeInitializedOrBeAbstractImpl(
firDiagnostic as FirPsiDiagnostic<*>,
token,
)
}
add(FirErrors.EXTENSION_PROPERTY_MUST_HAVE_ACCESSORS_OR_BE_ABSTRACT) { firDiagnostic ->
ExtensionPropertyMustHaveAccessorsOrBeAbstractImpl(
firDiagnostic as FirPsiDiagnostic<*>,
token,
)
}
add(FirErrors.BACKING_FIELD_IN_INTERFACE) { firDiagnostic ->
BackingFieldInInterfaceImpl(
firDiagnostic as FirPsiDiagnostic<*>,
@@ -645,6 +645,18 @@ sealed class KtFirDiagnostic<PSI: PsiElement> : KtDiagnosticWithPsi<PSI> {
override val diagnosticClass get() = PropertyWithNoTypeNoInitializer::class
}
abstract class MustBeInitialized : KtFirDiagnostic<KtProperty>() {
override val diagnosticClass get() = MustBeInitialized::class
}
abstract class MustBeInitializedOrBeAbstract : KtFirDiagnostic<KtProperty>() {
override val diagnosticClass get() = MustBeInitializedOrBeAbstract::class
}
abstract class ExtensionPropertyMustHaveAccessorsOrBeAbstract : KtFirDiagnostic<KtProperty>() {
override val diagnosticClass get() = ExtensionPropertyMustHaveAccessorsOrBeAbstract::class
}
abstract class BackingFieldInInterface : KtFirDiagnostic<KtProperty>() {
override val diagnosticClass get() = BackingFieldInInterface::class
}
@@ -1036,6 +1036,27 @@ internal class PropertyWithNoTypeNoInitializerImpl(
override val firDiagnostic: FirPsiDiagnostic<*> by weakRef(firDiagnostic)
}
internal class MustBeInitializedImpl(
firDiagnostic: FirPsiDiagnostic<*>,
override val token: ValidityToken,
) : KtFirDiagnostic.MustBeInitialized(), KtAbstractFirDiagnostic<KtProperty> {
override val firDiagnostic: FirPsiDiagnostic<*> by weakRef(firDiagnostic)
}
internal class MustBeInitializedOrBeAbstractImpl(
firDiagnostic: FirPsiDiagnostic<*>,
override val token: ValidityToken,
) : KtFirDiagnostic.MustBeInitializedOrBeAbstract(), KtAbstractFirDiagnostic<KtProperty> {
override val firDiagnostic: FirPsiDiagnostic<*> by weakRef(firDiagnostic)
}
internal class ExtensionPropertyMustHaveAccessorsOrBeAbstractImpl(
firDiagnostic: FirPsiDiagnostic<*>,
override val token: ValidityToken,
) : KtFirDiagnostic.ExtensionPropertyMustHaveAccessorsOrBeAbstract(), KtAbstractFirDiagnostic<KtProperty> {
override val firDiagnostic: FirPsiDiagnostic<*> by weakRef(firDiagnostic)
}
internal class BackingFieldInInterfaceImpl(
firDiagnostic: FirPsiDiagnostic<*>,
override val token: ValidityToken,
+2 -1
View File
@@ -11,4 +11,5 @@ class Y1 {
}
class Z : Y() {
}
}
// FIR_COMPARISON
+2 -1
View File
@@ -52,4 +52,5 @@ class TestPCParameters(w : Int, <warning>x</warning> : Int, val y : Int, var z :
fun foo() = <error>x</error>
}
}
// FIR_COMPARISON