[FIR] Let attributes opt-in to participating in ConeClassLikeTypeImpl structural equality

This is required for EnhancedTypeForWarningAttribute because scopes
should not be reused between cone types with different values of
this attribute.

#KT-63208

(cherry picked from commit 9189154cae)
This commit is contained in:
Kirill Rakhman
2024-01-05 15:10:28 +01:00
committed by Space Team
parent ccba52aae4
commit c39262195d
11 changed files with 58 additions and 92 deletions
@@ -141,7 +141,7 @@ FILE: [ResolvedTo(IMPORTS)] Derived.kt
BODY_RESOLVE:
TARGET: public open override [<synthetic> BODY_RESOLVE] val something: R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String|
@R|Anno|[Types](s = <strcat>(String(number: ), R|/prop|)) public [<synthetic> ResolvedTo(BODY_RESOLVE)] get(): R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String| {
^getSomething String(str).R|kotlin/also|<R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String|>(::R|kotlin/io/println|)
^getSomething String(str).R|kotlin/also|<R|kotlin/String|>(::R|kotlin/io/println|)
}
FILE: [ResolvedTo(IMPORTS)] Derived.kt
@@ -151,7 +151,7 @@ FILE: [ResolvedTo(IMPORTS)] Derived.kt
}
@R|Anno|[Types](s = <strcat>(String(number: ), R|/prop|)) public open override [ResolvedTo(BODY_RESOLVE)] fun getSomething(): R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String| {
^getSomething String(str).R|kotlin/also|<R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String|>(::R|kotlin/io/println|)
^getSomething String(str).R|kotlin/also|<R|kotlin/String|>(::R|kotlin/io/println|)
}
}
@@ -178,7 +178,7 @@ FILE: [ResolvedTo(BODY_RESOLVE)] Derived.kt
}
@R|Anno|[Types](s = <strcat>(String(number: ), R|/prop|)) public open override [ResolvedTo(BODY_RESOLVE)] fun getSomething(): R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String| {
^getSomething String(str).R|kotlin/also|<R|@R|Anno|(s = <strcat>(String(type: ), R|/prop|)) kotlin/String|>(::R|kotlin/io/println|)
^getSomething String(str).R|kotlin/also|<R|kotlin/String|>(::R|kotlin/io/println|)
}
}
@@ -18,10 +18,7 @@ import org.jetbrains.kotlin.fir.declarations.FirRegularClass
import org.jetbrains.kotlin.fir.declarations.utils.canHaveAbstractDeclaration
import org.jetbrains.kotlin.fir.declarations.utils.isAbstract
import org.jetbrains.kotlin.fir.declarations.utils.visibility
import org.jetbrains.kotlin.fir.types.ConeErrorType
import org.jetbrains.kotlin.fir.types.coneType
import org.jetbrains.kotlin.fir.types.hasError
import org.jetbrains.kotlin.fir.types.isUnit
import org.jetbrains.kotlin.fir.types.*
object FirPropertyAccessorsTypesChecker : FirPropertyChecker() {
override fun check(declaration: FirProperty, context: CheckerContext, reporter: DiagnosticReporter) {
@@ -100,7 +97,7 @@ object FirPropertyAccessorsTypesChecker : FirPropertyChecker() {
return
}
if (valueSetterType != propertyType && !valueSetterType.hasError()) {
if (valueSetterType.withAttributes(ConeAttributes.Empty) != propertyType.withAttributes(ConeAttributes.Empty) && !valueSetterType.hasError()) {
reporter.reportOn(valueSetterTypeSource, FirErrors.WRONG_SETTER_PARAMETER_TYPE, propertyType, valueSetterType, context)
}
@@ -32,6 +32,13 @@ abstract class ConeAttribute<out T : ConeAttribute<T>> : AnnotationMarker {
abstract override fun toString(): String
open fun renderForReadability(): String? = null
/**
* Signals that this attribute properly implements the [equals] and [hashCode] protocol.
*
* If it returns `true`, attributes will be compared using structural equality in [ConeAttributes.definitelyDifferFrom].
*/
open val implementsEquality: Boolean get() = false
abstract val key: KClass<out T>
/**
@@ -152,6 +159,32 @@ class ConeAttributes private constructor(attributes: List<ConeAttribute<*>>) : A
return create(attributes)
}
/**
* Returns `true` if this instance is definitely not equal to the [other] instance.
* This is `true` when one instance contains an attribute **type** that the other doesn't contain or both instances contain
* an attribute of a type where [ConeAttribute.implementsEquality]` == true` and the attribute's [equals] method returns `false`.
*
* A return value of `false` doesn't guarantee that the instances are equal because [ConeAttribute.implementsEquality] is optional,
* i.e., not all attributes can be compared structurally.
*
* @see org.jetbrains.kotlin.fir.types.impl.ConeClassLikeTypeImpl.equals
*/
infix fun definitelyDifferFrom(other: ConeAttributes): Boolean {
if (this === other) return false
if (this.isEmpty() && other.isEmpty()) return false
for (index in indices) {
val a = arrayMap[index]
val b = other.arrayMap[index]
if (a == null && b == null) continue
if ((a == null) != (b == null)) return true
if (a!!.implementsEquality && a != b) return true
}
return false
}
/**
* Applies the [transform] to all attributes that are subtypes of [ConeAttributeWithConeType] and returns a [ConeAttributes]
* with the results of transforms that were not-`null` or `null` if no attributes were transformed.
@@ -34,6 +34,7 @@ class ConeClassLikeTypeImpl(
if (lookupTag != other.lookupTag) return false
if (!typeArguments.contentEquals(other.typeArguments)) return false
if (nullability != other.nullability) return false
if (attributes definitelyDifferFrom other.attributes) return false
return true
}
@@ -25,6 +25,25 @@ class EnhancedTypeForWarningAttribute(
override val keepInInferredDeclarationType: Boolean
get() = true
override val implementsEquality: Boolean
get() = true
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false
other as EnhancedTypeForWarningAttribute
if (coneType != other.coneType) return false
return true
}
override fun hashCode(): Int {
var result = coneType.hashCode()
return result
}
}
val ConeAttributes.enhancedTypeForWarning: EnhancedTypeForWarningAttribute? by ConeAttributes.attributeAccessor<EnhancedTypeForWarningAttribute>()
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1
@@ -1,18 +1,4 @@
MODULE main
CLASS MLItr.class
CLASS METADATA
FUNCTION add(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
FUNCTION set(Ljava/lang/String;)V
Property: class.metadata.function.valueParameters
K1
(element: kotlin/String)
K2
(element: @kotlin/jvm/internal/EnhancedNullability kotlin/String)
CLASS C.class
CLASS METADATA
K1