[FIR] Support ENUM_CLASS_CONSTRUCTOR_CALL

^KT-59411 Fixed

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDataClassConverters.kt

@@ -863,6 +863,12 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirErrors.ENUM_CLASS_CONSTRUCTOR_CALL) { firDiagnostic ->
+        EnumClassConstructorCallImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.NOT_AN_ANNOTATION_CLASS) { firDiagnostic ->
         NotAnAnnotationClassImpl(
             firDiagnostic.a,

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnostics.kt

@@ -635,6 +635,10 @@ sealed interface KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = AnnotationClassConstructorCall::class
     }
 
+    interface EnumClassConstructorCall : KtFirDiagnostic<KtCallExpression> {
+        override val diagnosticClass get() = EnumClassConstructorCall::class
+    }
+
     interface NotAnAnnotationClass : KtFirDiagnostic<PsiElement> {
         override val diagnosticClass get() = NotAnAnnotationClass::class
         val annotationName: String

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnosticsImpl.kt

@@ -756,6 +756,11 @@ internal class AnnotationClassConstructorCallImpl(
     token: KtLifetimeToken,
 ) : KtAbstractFirDiagnostic<KtCallExpression>(firDiagnostic, token), KtFirDiagnostic.AnnotationClassConstructorCall
 
+internal class EnumClassConstructorCallImpl(
+    firDiagnostic: KtPsiDiagnostic,
+    token: KtLifetimeToken,
+) : KtAbstractFirDiagnostic<KtCallExpression>(firDiagnostic, token), KtFirDiagnostic.EnumClassConstructorCall
+
 internal class NotAnAnnotationClassImpl(
     override val annotationName: String,
     firDiagnostic: KtPsiDiagnostic,

compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirDiagnosticsList.kt

@@ -290,6 +290,7 @@ object DIAGNOSTICS_LIST : DiagnosticList("FirErrors") {
         val NON_CONST_VAL_USED_IN_CONSTANT_EXPRESSION by error<KtExpression>()
         val CYCLE_IN_ANNOTATION_PARAMETER by deprecationError<KtParameter>(LanguageFeature.ProhibitCyclesInAnnotations)
         val ANNOTATION_CLASS_CONSTRUCTOR_CALL by error<KtCallExpression>()
+        val ENUM_CLASS_CONSTRUCTOR_CALL by error<KtCallExpression>()
         val NOT_AN_ANNOTATION_CLASS by error<PsiElement> {
             parameter<String>("annotationName")
         }

compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrors.kt

@@ -248,6 +248,7 @@ object FirErrors {
     val NON_CONST_VAL_USED_IN_CONSTANT_EXPRESSION by error0<KtExpression>()
     val CYCLE_IN_ANNOTATION_PARAMETER by deprecationError0<KtParameter>(ProhibitCyclesInAnnotations)
     val ANNOTATION_CLASS_CONSTRUCTOR_CALL by error0<KtCallExpression>()
+    val ENUM_CLASS_CONSTRUCTOR_CALL by error0<KtCallExpression>()
     val NOT_AN_ANNOTATION_CLASS by error1<PsiElement, String>()
     val NULLABLE_TYPE_OF_ANNOTATION_MEMBER by error0<KtTypeReference>()
     val VAR_ANNOTATION_PARAMETER by error0<KtParameter>(SourceElementPositioningStrategies.VAL_OR_VAR_NODE)

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/expression/FirConstructorCallChecker.kt

@@ -22,22 +22,29 @@ object FirConstructorCallChecker : FirFunctionCallChecker() {
     override fun check(expression: FirFunctionCall, context: CheckerContext, reporter: DiagnosticReporter) {
         val constructorSymbol = expression.calleeReference.toResolvedConstructorSymbol() ?: return
         val declarationClass = constructorSymbol.resolvedReturnTypeRef.coneType.toRegularClassSymbol(context.session)
+            ?: return
 
-        if (declarationClass != null) {
-            if (declarationClass.classKind == ClassKind.ANNOTATION_CLASS &&
-                context.callsOrAssignments.all { call ->
-                    call !is FirAnnotation
-                } &&
-                context.containingDeclarations.all { klass ->
-                    klass !is FirRegularClass || klass.classKind != ClassKind.ANNOTATION_CLASS
-                }
-            ) {
-                if (!context.languageVersionSettings.supportsFeature(LanguageFeature.InstantiationOfAnnotationClasses)) reporter.reportOn(
-                    expression.source,
-                    FirErrors.ANNOTATION_CLASS_CONSTRUCTOR_CALL,
-                    context
-                )
+        if (declarationClass.classKind == ClassKind.ANNOTATION_CLASS &&
+            context.callsOrAssignments.all { call ->
+                call !is FirAnnotation
+            } &&
+            context.containingDeclarations.all { klass ->
+                klass !is FirRegularClass || klass.classKind != ClassKind.ANNOTATION_CLASS
             }
+        ) {
+            if (!context.languageVersionSettings.supportsFeature(LanguageFeature.InstantiationOfAnnotationClasses)) reporter.reportOn(
+                expression.source,
+                FirErrors.ANNOTATION_CLASS_CONSTRUCTOR_CALL,
+                context
+            )
+        }
+
+        if (declarationClass.classKind == ClassKind.ENUM_CLASS) {
+            reporter.reportOn(
+                expression.source,
+                FirErrors.ENUM_CLASS_CONSTRUCTOR_CALL,
+                context
+            )
         }
     }
 }

compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrorsDefaultMessages.kt

@@ -194,6 +194,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.DYNAMIC_UPPER_BOU
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ELSE_MISPLACED_IN_WHEN
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EMPTY_CHARACTER_LITERAL
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EMPTY_RANGE
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ENUM_CLASS_CONSTRUCTOR_CALL
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ENUM_ENTRY_AS_TYPE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EQUALITY_NOT_APPLICABLE
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.EQUALITY_NOT_APPLICABLE_WARNING
@@ -878,6 +879,7 @@ object FirErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
         map.put(INVALID_TYPE_OF_ANNOTATION_MEMBER, "Invalid type of annotation member")
         map.put(VAR_ANNOTATION_PARAMETER, "An annotation parameter cannot be 'var'")
         map.put(ANNOTATION_CLASS_CONSTRUCTOR_CALL, "Annotation class cannot be instantiated")
+        map.put(ENUM_CLASS_CONSTRUCTOR_CALL, "Enum types cannot be instantiated")
         map.put(NOT_AN_ANNOTATION_CLASS, "Illegal annotation class: {0}", NULLABLE_STRING)
         map.put(SUPERTYPES_FOR_ANNOTATION_CLASS, "Annotation class cannot have supertypes")
         map.put(

compiler/testData/diagnostics/tests/enum/ConstructorCallFromOutside.fir.kt

@@ -6,5 +6,5 @@ enum class A(val c: Int) {
 
 fun createA(): A {
     // Error should be here!
-    return <!INVISIBLE_REFERENCE!>A<!>(10)
+    return <!ENUM_CLASS_CONSTRUCTOR_CALL!><!INVISIBLE_REFERENCE!>A<!>(10)<!>
 }

compiler/testData/diagnostics/tests/enum/ExplicitConstructorCall.fir.kt

@@ -1,10 +0,0 @@
-// KT-7753: attempt to call enum constructor explicitly
-enum class A(val c: Int) {
-    ONE(1),
-    TWO(2);
-    
-    fun createA(): A {
-        // Error should be here!
-        return A(10)
-    }
-}

compiler/testData/diagnostics/tests/enum/ExplicitConstructorCall.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // KT-7753: attempt to call enum constructor explicitly
 enum class A(val c: Int) {
     ONE(1),

compiler/testData/diagnostics/tests/enum/InsideEntryConstructorCall.fir.kt

@@ -1,15 +0,0 @@
-// KT-7753: attempt to call enum constructor explicitly
-enum class A(val c: Int) {
-    ONE(1) {
-        override fun selfOrFriend(): A {
-            return this
-        }
-    },
-    TWO(2) {
-        override fun selfOrFriend(): A {
-            return A(42)
-        }
-    };
-    
-    abstract fun selfOrFriend(): A
-}

compiler/testData/diagnostics/tests/enum/InsideEntryConstructorCall.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // KT-7753: attempt to call enum constructor explicitly
 enum class A(val c: Int) {
     ONE(1) {

compiler/testData/diagnostics/tests/enum/InsideSecondaryConstructorCall.fir.kt

@@ -1,13 +0,0 @@
-// KT-7753: attempt to call enum constructor explicitly
-enum class A(val c: Int) {
-    ONE(1),
-    TWO(2),
-    THREE(3),
-    FORTY_TWO();
-
-    var last: A? = null
-
-    constructor(): this(42) {
-        last = A(13)
-    }
-}

compiler/testData/diagnostics/tests/enum/InsideSecondaryConstructorCall.kt

@@ -1,3 +1,4 @@
+// FIR_IDENTICAL
 // KT-7753: attempt to call enum constructor explicitly
 enum class A(val c: Int) {
     ONE(1),

compiler/testData/diagnostics/tests/typealias/typeAliasConstructorWrongClass.fir.kt

@@ -12,8 +12,8 @@ val test2a = AnnotationClass()
 
 enum class EnumClass { VALUE1, VALUE2 }
 typealias Test3 = EnumClass
-val test3 = <!INVISIBLE_REFERENCE!>Test3<!>()
-val test3a = <!INVISIBLE_REFERENCE!>EnumClass<!>()
+val test3 = <!ENUM_CLASS_CONSTRUCTOR_CALL!><!INVISIBLE_REFERENCE!>Test3<!>()<!>
+val test3a = <!ENUM_CLASS_CONSTRUCTOR_CALL!><!INVISIBLE_REFERENCE!>EnumClass<!>()<!>
 
 sealed class SealedClass
 typealias Test4 = SealedClass