Analysis API: add annotations to KtTypeAliasSymbol

analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/symbols/KtFirTypeAliasSymbol.kt

@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.analysis.api.fir.symbols
 
 import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.analysis.api.annotations.KtAnnotationsList
 import org.jetbrains.kotlin.descriptors.Visibilities
 import org.jetbrains.kotlin.descriptors.Visibility
 import org.jetbrains.kotlin.fir.declarations.FirResolvePhase
@@ -15,6 +16,8 @@ import org.jetbrains.kotlin.fir.declarations.utils.isLocal
 import org.jetbrains.kotlin.analysis.api.fir.findPsi
 import org.jetbrains.kotlin.analysis.low.level.api.fir.api.FirModuleResolveState
 import org.jetbrains.kotlin.analysis.api.fir.KtSymbolByFirBuilder
+import org.jetbrains.kotlin.analysis.api.fir.annotations.KtFirAnnotationListForDeclaration
+import org.jetbrains.kotlin.analysis.api.fir.utils.cached
 import org.jetbrains.kotlin.analysis.api.fir.utils.firRef
 import org.jetbrains.kotlin.analysis.api.fir.utils.weakRef
 import org.jetbrains.kotlin.analysis.api.symbols.KtTypeAliasSymbol
@@ -22,12 +25,13 @@ import org.jetbrains.kotlin.analysis.api.symbols.pointers.KtPsiBasedSymbolPointe
 import org.jetbrains.kotlin.analysis.api.symbols.pointers.KtSymbolPointer
 import org.jetbrains.kotlin.analysis.api.tokens.ValidityToken
 import org.jetbrains.kotlin.analysis.api.types.KtType
+import org.jetbrains.kotlin.analysis.api.withValidityAssertion
 import org.jetbrains.kotlin.name.ClassId
 import org.jetbrains.kotlin.name.Name
 
 internal class KtFirTypeAliasSymbol(
     fir: FirTypeAlias,
-    resolveState: FirModuleResolveState,
+    private val resolveState: FirModuleResolveState,
     override val token: ValidityToken,
     private val builder: KtSymbolByFirBuilder,
 ) : KtTypeAliasSymbol(), KtFirSymbol<FirTypeAlias> {
@@ -53,6 +57,10 @@ internal class KtFirTypeAliasSymbol(
         builder.typeBuilder.buildKtType(fir.expandedTypeRef)
     }
 
+    override val annotationsList: KtAnnotationsList by cached {
+        KtFirAnnotationListForDeclaration.create(firRef, resolveState.rootModuleSession, token)
+    }
+
     override fun createPointer(): KtSymbolPointer<KtTypeAliasSymbol> {
         KtPsiBasedSymbolPointer.createForSymbolFromSource(this)?.let { return it }
         TODO("Creating symbols for library typealiases is not supported yet")

analysis/analysis-api/src/org/jetbrains/kotlin/analysis/api/symbols/KtClassLikeSymbol.kt

@@ -35,7 +35,8 @@ public sealed class KtClassLikeSymbol : KtClassifierSymbol(), KtSymbolWithKind {
 public abstract class KtTypeAliasSymbol : KtClassLikeSymbol(),
     KtSymbolWithTypeParameters,
     KtSymbolWithVisibility,
-    KtNamedSymbol {
+    KtNamedSymbol,
+    KtAnnotatedSymbol {
     final override val symbolKind: KtSymbolKind get() = KtSymbolKind.TOP_LEVEL
 
     /**

analysis/analysis-api/testData/symbols/symbolByPsi/typeAlias.txt

@@ -42,6 +42,7 @@ KtTypeParameterSymbol:
   deprecationStatus: null
 
 KtTypeAliasSymbol:
+  annotationsList: []
   classIdIfNonLocal: Y
   expandedType: X<Z>
   name: Y