[FIR JS] Implement FirJsNativeAnnotationChecker

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

@@ -1019,6 +1019,47 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
             token,
         )
     }
+    add(FirJsErrors.NATIVE_ANNOTATIONS_ALLOWED_ONLY_ON_MEMBER_OR_EXTENSION_FUN) { firDiagnostic ->
+        NativeAnnotationsAllowedOnlyOnMemberOrExtensionFunImpl(
+            firSymbolBuilder.typeBuilder.buildKtType(firDiagnostic.a),
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJsErrors.NATIVE_INDEXER_KEY_SHOULD_BE_STRING_OR_NUMBER) { firDiagnostic ->
+        NativeIndexerKeyShouldBeStringOrNumberImpl(
+            firDiagnostic.a,
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJsErrors.NATIVE_INDEXER_WRONG_PARAMETER_COUNT) { firDiagnostic ->
+        NativeIndexerWrongParameterCountImpl(
+            firDiagnostic.a,
+            firDiagnostic.b,
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJsErrors.NATIVE_INDEXER_CAN_NOT_HAVE_DEFAULT_ARGUMENTS) { firDiagnostic ->
+        NativeIndexerCanNotHaveDefaultArgumentsImpl(
+            firDiagnostic.a,
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJsErrors.NATIVE_GETTER_RETURN_TYPE_SHOULD_BE_NULLABLE) { firDiagnostic ->
+        NativeGetterReturnTypeShouldBeNullableImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
+    add(FirJsErrors.NATIVE_SETTER_WRONG_RETURN_TYPE) { firDiagnostic ->
+        NativeSetterWrongReturnTypeImpl(
+            firDiagnostic as KtPsiDiagnostic,
+            token,
+        )
+    }
     add(FirErrors.OPT_IN_USAGE) { firDiagnostic ->
         OptInUsageImpl(
             firDiagnostic.a,

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

@@ -732,6 +732,35 @@ sealed class KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
         override val diagnosticClass get() = RuntimeAnnotationOnExternalDeclaration::class
     }
 
+    abstract class NativeAnnotationsAllowedOnlyOnMemberOrExtensionFun : KtFirDiagnostic<KtElement>() {
+        override val diagnosticClass get() = NativeAnnotationsAllowedOnlyOnMemberOrExtensionFun::class
+        abstract val type: KtType
+    }
+
+    abstract class NativeIndexerKeyShouldBeStringOrNumber : KtFirDiagnostic<KtElement>() {
+        override val diagnosticClass get() = NativeIndexerKeyShouldBeStringOrNumber::class
+        abstract val kind: String
+    }
+
+    abstract class NativeIndexerWrongParameterCount : KtFirDiagnostic<KtElement>() {
+        override val diagnosticClass get() = NativeIndexerWrongParameterCount::class
+        abstract val parametersCount: Int
+        abstract val kind: String
+    }
+
+    abstract class NativeIndexerCanNotHaveDefaultArguments : KtFirDiagnostic<KtElement>() {
+        override val diagnosticClass get() = NativeIndexerCanNotHaveDefaultArguments::class
+        abstract val kind: String
+    }
+
+    abstract class NativeGetterReturnTypeShouldBeNullable : KtFirDiagnostic<KtDeclaration>() {
+        override val diagnosticClass get() = NativeGetterReturnTypeShouldBeNullable::class
+    }
+
+    abstract class NativeSetterWrongReturnType : KtFirDiagnostic<KtDeclaration>() {
+        override val diagnosticClass get() = NativeSetterWrongReturnType::class
+    }
+
     abstract class OptInUsage : KtFirDiagnostic<PsiElement>() {
         override val diagnosticClass get() = OptInUsage::class
         abstract val optInMarkerFqName: FqName

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

@@ -880,6 +880,41 @@ internal class RuntimeAnnotationOnExternalDeclarationImpl(
     override val token: KtLifetimeToken,
 ) : KtFirDiagnostic.RuntimeAnnotationOnExternalDeclaration(), KtAbstractFirDiagnostic<PsiElement>
 
+internal class NativeAnnotationsAllowedOnlyOnMemberOrExtensionFunImpl(
+    override val type: KtType,
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeAnnotationsAllowedOnlyOnMemberOrExtensionFun(), KtAbstractFirDiagnostic<KtElement>
+
+internal class NativeIndexerKeyShouldBeStringOrNumberImpl(
+    override val kind: String,
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeIndexerKeyShouldBeStringOrNumber(), KtAbstractFirDiagnostic<KtElement>
+
+internal class NativeIndexerWrongParameterCountImpl(
+    override val parametersCount: Int,
+    override val kind: String,
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeIndexerWrongParameterCount(), KtAbstractFirDiagnostic<KtElement>
+
+internal class NativeIndexerCanNotHaveDefaultArgumentsImpl(
+    override val kind: String,
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeIndexerCanNotHaveDefaultArguments(), KtAbstractFirDiagnostic<KtElement>
+
+internal class NativeGetterReturnTypeShouldBeNullableImpl(
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeGetterReturnTypeShouldBeNullable(), KtAbstractFirDiagnostic<KtDeclaration>
+
+internal class NativeSetterWrongReturnTypeImpl(
+    override val firDiagnostic: KtPsiDiagnostic,
+    override val token: KtLifetimeToken,
+) : KtFirDiagnostic.NativeSetterWrongReturnType(), KtAbstractFirDiagnostic<KtDeclaration>
+
 internal class OptInUsageImpl(
     override val optInMarkerFqName: FqName,
     override val message: String,