implement PSI based API logics for kotlin source, with the exception of the following:

* necesssary API not available in analysis API as of 1.7.0-dev-1984
* type ralated logics
* parent look up

13 files changed, 338 insertions, 199 deletions

diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KSPCoreEnvironment.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KSPCoreEnvironment.kt
index fb40fd74..d4842921 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KSPCoreEnvironment.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/KSPCoreEnvironment.kt
@@ -5,6 +5,7 @@ import com.intellij.psi.PsiDocumentManager
 
 class KSPCoreEnvironment(private val project: MockProject) {
     companion object {
+        //TODO: get rid of singleton.
         lateinit var instance: KSPCoreEnvironment
     }
     init {
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSAnnotationImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSAnnotationImpl.kt
index ba93a8ff..f688857b 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSAnnotationImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSAnnotationImpl.kt
@@ -1,15 +1,8 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.AnnotationUseSiteTarget
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSValueArgument
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.symbol.*
 import org.jetbrains.kotlin.analysis.api.annotations.KtAnnotationApplication
+import org.jetbrains.kotlin.descriptors.annotations.AnnotationUseSiteTarget.*
 
 class KSAnnotationImpl(private val annotationApplication: KtAnnotationApplication) : KSAnnotation {
     override val annotationType: KSTypeReference
@@ -19,12 +12,28 @@ class KSAnnotationImpl(private val annotationApplication: KtAnnotationApplicatio
     }
     override val shortName: KSName
         get() = TODO("Not yet implemented")
-    override val useSiteTarget: AnnotationUseSiteTarget?
-        get() = TODO("Not yet implemented")
+    override val useSiteTarget: AnnotationUseSiteTarget? by lazy {
+        when (annotationApplication.useSiteTarget) {
+            null -> null
+            FILE -> AnnotationUseSiteTarget.FILE
+            PROPERTY -> AnnotationUseSiteTarget.PROPERTY
+            FIELD -> AnnotationUseSiteTarget.FIELD
+            PROPERTY_GETTER -> AnnotationUseSiteTarget.GET
+            PROPERTY_SETTER -> AnnotationUseSiteTarget.SET
+            RECEIVER -> AnnotationUseSiteTarget.RECEIVER
+            CONSTRUCTOR_PARAMETER -> AnnotationUseSiteTarget.PARAM
+            SETTER_PARAMETER -> AnnotationUseSiteTarget.SETPARAM
+            PROPERTY_DELEGATE_FIELD -> AnnotationUseSiteTarget.DELEGATE
+
+        }
+    }
+
     override val origin: Origin = Origin.KOTLIN
 
-    override val location: Location
-        get() = TODO("Not yet implemented")
+    override val location: Location by lazy {
+        annotationApplication.psi?.toLocation() ?: NonExistLocation
+    }
+
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSClassDeclarationImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSClassDeclarationImpl.kt
index f9e2dbdb..b3dd204d 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSClassDeclarationImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSClassDeclarationImpl.kt
@@ -1,26 +1,12 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.ClassKind
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSClassDeclaration
-import com.google.devtools.ksp.symbol.KSDeclaration
-import com.google.devtools.ksp.symbol.KSFile
-import com.google.devtools.ksp.symbol.KSFunctionDeclaration
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSPropertyDeclaration
-import com.google.devtools.ksp.symbol.KSType
-import com.google.devtools.ksp.symbol.KSTypeArgument
-import com.google.devtools.ksp.symbol.KSTypeParameter
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Modifier
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.getDocString
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.toKSModifiers
 import org.jetbrains.kotlin.analysis.api.annotations.annotations
-import org.jetbrains.kotlin.analysis.api.symbols.KtFunctionSymbol
-import org.jetbrains.kotlin.analysis.api.symbols.KtNamedClassOrObjectSymbol
-import org.jetbrains.kotlin.analysis.api.symbols.KtPropertySymbol
+import org.jetbrains.kotlin.analysis.api.symbols.*
+import org.jetbrains.kotlin.psi.KtClassOrObject
+import org.jetbrains.kotlin.psi.KtObjectDeclaration
 
 class KSClassDeclarationImpl(private val ktNamedClassOrObjectSymbol: KtNamedClassOrObjectSymbol) : KSClassDeclaration {
     override val classKind: ClassKind
@@ -38,15 +24,19 @@ class KSClassDeclarationImpl(private val ktNamedClassOrObjectSymbol: KtNamedClas
         }
     }
 
-    override val isCompanionObject: Boolean
-        get() = TODO("Not yet implemented")
+    override val isCompanionObject: Boolean by lazy {
+        (ktNamedClassOrObjectSymbol.psi as? KtObjectDeclaration)?.isCompanion() ?: false
+    }
 
     override fun getSealedSubclasses(): Sequence<KSClassDeclaration> {
         TODO("Not yet implemented")
     }
 
     override fun getAllFunctions(): Sequence<KSFunctionDeclaration> {
-        TODO("Not yet implemented")
+        return analyzeWithSymbolAsContext(ktNamedClassOrObjectSymbol) {
+            ktNamedClassOrObjectSymbol.getMemberScope().getCallableSymbols().filterIsInstance<KtFunctionLikeSymbol>()
+            .map { KSFunctionDeclarationImpl(it) }
+        }
     }
 
     override fun getAllProperties(): Sequence<KSPropertyDeclaration> {
@@ -64,26 +54,42 @@ class KSClassDeclarationImpl(private val ktNamedClassOrObjectSymbol: KtNamedClas
         TODO("Not yet implemented")
     }
 
-    override val simpleName: KSName
-        get() = TODO("Not yet implemented")
-    override val qualifiedName: KSName?
-        get() = TODO("Not yet implemented")
-    override val typeParameters: List<KSTypeParameter>
-        get() = TODO("Not yet implemented")
-    override val packageName: KSName
-        get() = TODO("Not yet implemented")
-    override val parentDeclaration: KSDeclaration?
-        get() = TODO("Not yet implemented")
-    override val containingFile: KSFile?
-        get() = TODO("Not yet implemented")
-    override val docString: String?
-        get() = TODO("Not yet implemented")
-    override val modifiers: Set<Modifier>
-        get() = TODO("Not yet implemented")
-    override val origin: Origin
-        get() = TODO("Not yet implemented")
-    override val location: Location
-        get() = TODO("Not yet implemented")
+    override val simpleName: KSName by lazy {
+        KSNameImpl(ktNamedClassOrObjectSymbol.name.asString())
+    }
+
+    override val qualifiedName: KSName? by lazy {
+        (ktNamedClassOrObjectSymbol.psi as? KtClassOrObject)?.fqName?.asString()?.let { KSNameImpl(it) }
+    }
+
+    override val typeParameters: List<KSTypeParameter> by lazy {
+        ktNamedClassOrObjectSymbol.typeParameters.map { KSTypeParameterImpl(it) }
+    }
+
+    override val packageName: KSName by lazy {
+        this.containingFile?.packageName ?: KSNameImpl("")
+    }
+
+    override val parentDeclaration: KSDeclaration? by lazy {
+        TODO()
+    }
+    override val containingFile: KSFile? by lazy {
+        ktNamedClassOrObjectSymbol.toContainingFile()
+    }
+    override val docString: String? by lazy {
+        ktNamedClassOrObjectSymbol.psi?.getDocString()
+    }
+
+    override val modifiers: Set<Modifier> by lazy {
+        (ktNamedClassOrObjectSymbol.psi as? KtClassOrObject)?.toKSModifiers() ?: emptySet()
+    }
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktNamedClassOrObjectSymbol.origin)
+    }
+
+    override val location: Location by lazy {
+        ktNamedClassOrObjectSymbol.psi?.toLocation() ?: NonExistLocation
+    }
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFileSymbolImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFileImpl.kt
index 19cf7a2e..4b290d1b 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFileSymbolImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFileImpl.kt
@@ -15,7 +15,7 @@ import org.jetbrains.kotlin.analysis.api.symbols.KtNamedClassOrObjectSymbol
 import org.jetbrains.kotlin.analysis.api.symbols.KtPropertySymbol
 import org.jetbrains.kotlin.psi.KtFile
 
-class KSFileSymbolImpl(private val ktFile: KtFile) : KSFile {
+class KSFileImpl(private val ktFile: KtFile) : KSFile {
     override val packageName: KSName by lazy {
         KSNameImpl(ktFile.packageFqName.asString())
     }
@@ -39,8 +39,9 @@ class KSFileSymbolImpl(private val ktFile: KtFile) : KSFile {
     }
     override val origin: Origin = Origin.KOTLIN
 
-    override val location: Location
-        get() = TODO("Not yet implemented")
+    override val location: Location by lazy {
+        ktFile.toLocation()
+    }
 
     override val parent: KSNode? = null
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFunctionDeclarationImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFunctionDeclarationImpl.kt
index cd3ef8ae..9b943503 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFunctionDeclarationImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSFunctionDeclarationImpl.kt
@@ -1,35 +1,28 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.FunctionKind
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSDeclaration
-import com.google.devtools.ksp.symbol.KSFile
-import com.google.devtools.ksp.symbol.KSFunction
-import com.google.devtools.ksp.symbol.KSFunctionDeclaration
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSType
-import com.google.devtools.ksp.symbol.KSTypeParameter
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSValueParameter
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Modifier
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.toKSModifiers
 import org.jetbrains.kotlin.analysis.api.annotations.annotations
 import org.jetbrains.kotlin.analysis.api.InvalidWayOfUsingAnalysisSession
 import org.jetbrains.kotlin.analysis.api.KtAnalysisSession
 import org.jetbrains.kotlin.analysis.api.KtAnalysisSessionProvider
-import org.jetbrains.kotlin.analysis.api.symbols.KtFunctionLikeSymbol
-import org.jetbrains.kotlin.analysis.api.symbols.KtFunctionSymbol
-import org.jetbrains.kotlin.analysis.api.symbols.KtSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.*
 import org.jetbrains.kotlin.analysis.api.symbols.markers.KtAnnotatedSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.markers.KtSymbolKind
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.psi.KtFile
+import org.jetbrains.kotlin.psi.KtFunction
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 class KSFunctionDeclarationImpl(private val ktFunctionSymbol: KtFunctionLikeSymbol) : KSFunctionDeclaration {
-    override val functionKind: FunctionKind
-        get() = TODO("Not yet implemented")
+    override val functionKind: FunctionKind by lazy {
+        when (ktFunctionSymbol.symbolKind) {
+            KtSymbolKind.CLASS_MEMBER -> FunctionKind.MEMBER
+            KtSymbolKind.TOP_LEVEL -> FunctionKind.TOP_LEVEL
+            KtSymbolKind.SAM_CONSTRUCTOR -> FunctionKind.LAMBDA
+            else -> throw IllegalStateException("Unexpected symbol kind ${ktFunctionSymbol.symbolKind}")
+        }
+    }
     override val isAbstract: Boolean by lazy {
         (ktFunctionSymbol as? KtFunctionSymbol)?.modality == Modality.ABSTRACT
     }
@@ -66,8 +59,9 @@ class KSFunctionDeclarationImpl(private val ktFunctionSymbol: KtFunctionLikeSymb
             KSNameImpl("<init>")
         }
     }
-    override val qualifiedName: KSName?
-        get() = TODO("Not yet implemented")
+    override val qualifiedName: KSName? by lazy {
+        (ktFunctionSymbol.psi as? KtFunction)?.fqName?.asString()?.let { KSNameImpl(it) }
+    }
     override val typeParameters: List<KSTypeParameter> by lazy {
         (ktFunctionSymbol as? KtFunctionSymbol)?.typeParameters?.map { KSTypeParameterImpl(it) } ?: emptyList()
     }
@@ -77,16 +71,25 @@ class KSFunctionDeclarationImpl(private val ktFunctionSymbol: KtFunctionLikeSymb
     override val parentDeclaration: KSDeclaration?
         get() = TODO("Not yet implemented")
     override val containingFile: KSFile? by lazy {
-        (ktFunctionSymbol.psi?.containingFile as? KtFile)?.let { KSFileSymbolImpl(it) }
+        (ktFunctionSymbol.psi?.containingFile as? KtFile)?.let { KSFileImpl(it) }
     }
-    override val docString: String?
-        get() = TODO("Not yet implemented")
-    override val modifiers: Set<Modifier>
-        get() = TODO("Not yet implemented")
-    override val origin: Origin
-        get() = TODO("Not yet implemented")
-    override val location: Location
-        get() = TODO("Not yet implemented")
+
+    override val docString: String? by lazy {
+        ktFunctionSymbol.toDocString()
+    }
+
+    override val modifiers: Set<Modifier> by lazy {
+        ktFunctionSymbol.psi?.safeAs<KtFunction>()?.toKSModifiers() ?: emptySet()
+    }
+
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktFunctionSymbol.origin)
+    }
+
+    override val location: Location by lazy {
+        ktFunctionSymbol.psi?.toLocation() ?: NonExistLocation
+    }
+
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyAccessorImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyAccessorImpl.kt
new file mode 100644
index 00000000..a4cdccb2
--- /dev/null
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyAccessorImpl.kt
@@ -0,0 +1,54 @@
+package com.google.devtools.ksp.impl.symbol.kotlin
+
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.toKSModifiers
+import org.jetbrains.kotlin.analysis.api.annotations.annotations
+import org.jetbrains.kotlin.analysis.api.symbols.KtPropertyAccessorSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.KtPropertyGetterSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.KtPropertySetterSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.KtPropertySymbol
+import org.jetbrains.kotlin.psi.KtModifierListOwner
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
+
+abstract class KSPropertyAccessorImpl(private val ktPropertyAccessorSymbol: KtPropertyAccessorSymbol, override val receiver: KSPropertyDeclaration) : KSPropertyAccessor {
+    override val annotations: Sequence<KSAnnotation> by lazy {
+        ktPropertyAccessorSymbol.annotations.asSequence().map { KSAnnotationImpl(it) }
+    }
+
+    override val location: Location by lazy {
+        ktPropertyAccessorSymbol.psi?.toLocation() ?: NonExistLocation
+    }
+
+    override val modifiers: Set<Modifier> by lazy {
+        ktPropertyAccessorSymbol.psi?.safeAs<KtModifierListOwner>()?.toKSModifiers() ?: emptySet()
+    }
+
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktPropertyAccessorSymbol.origin)
+    }
+
+    override val parent: KSNode?
+        get() = TODO("Not yet implemented")
+}
+
+class KSPropertySetterImpl(owner: KSPropertyDeclaration, private val setter: KtPropertySetterSymbol
+): KSPropertySetter, KSPropertyAccessorImpl(setter, owner) {
+    override val parameter: KSValueParameter by lazy {
+        KSValueParameterImpl(setter.parameter)
+    }
+
+    override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
+        return visitor.visitPropertySetter(this, data)
+    }
+}
+
+class KSPropertyGetterImpl(owner: KSPropertyDeclaration, getter: KtPropertyGetterSymbol
+): KSPropertyGetter, KSPropertyAccessorImpl(getter, owner) {
+    override val returnType: KSTypeReference? by lazy {
+        KSTypeReferenceImpl(getter.returnType)
+    }
+
+    override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
+        return visitor.visitPropertyGetter(this, data)
+    }
+}
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyDeclarationImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyDeclarationImpl.kt
index a8210e8f..49a23c75 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyDeclarationImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSPropertyDeclarationImpl.kt
@@ -1,31 +1,27 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSDeclaration
-import com.google.devtools.ksp.symbol.KSFile
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSPropertyDeclaration
-import com.google.devtools.ksp.symbol.KSPropertyGetter
-import com.google.devtools.ksp.symbol.KSPropertySetter
-import com.google.devtools.ksp.symbol.KSType
-import com.google.devtools.ksp.symbol.KSTypeParameter
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Modifier
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.getDocString
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.toKSModifiers
+import org.jetbrains.kotlin.analysis.api.annotations.annotations
 import org.jetbrains.kotlin.analysis.api.symbols.KtNamedClassOrObjectSymbol
 import org.jetbrains.kotlin.analysis.api.symbols.KtPropertySymbol
 import org.jetbrains.kotlin.psi.KtFile
+import org.jetbrains.kotlin.psi.KtFunction
+import org.jetbrains.kotlin.psi.KtProperty
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 class KSPropertyDeclarationImpl(private val ktPropertySymbol: KtPropertySymbol) : KSPropertyDeclaration {
-    override val getter: KSPropertyGetter?
-        get() = TODO("Not yet implemented")
-    override val setter: KSPropertySetter?
-        get() = TODO("Not yet implemented")
-    override val extensionReceiver: KSTypeReference?
-        get() = TODO("Not yet implemented")
+    override val getter: KSPropertyGetter? by lazy {
+        ktPropertySymbol.getter?.let { KSPropertyGetterImpl(this, it) }
+    }
+    override val setter: KSPropertySetter? by lazy {
+        ktPropertySymbol.setter?.let { KSPropertySetterImpl(this, it) }
+    }
+
+    override val extensionReceiver: KSTypeReference? by lazy {
+        ktPropertySymbol.receiverType?.let { KSTypeReferenceImpl(it) }
+    }
     override val type: KSTypeReference by lazy {
         KSTypeReferenceImpl(ktPropertySymbol.returnType)
     }
@@ -48,40 +44,56 @@ class KSPropertyDeclarationImpl(private val ktPropertySymbol: KtPropertySymbol)
         TODO("Not yet implemented")
     }
 
-    override val simpleName: KSName
-        get() = TODO("Not yet implemented")
-    override val qualifiedName: KSName?
-        get() = TODO("Not yet implemented")
+    override val simpleName: KSName by lazy {
+        KSNameImpl(ktPropertySymbol.name.asString())
+    }
+
+    override val qualifiedName: KSName? by lazy {
+        (ktPropertySymbol.psi as? KtProperty)?.fqName?.asString()?.let { KSNameImpl(it) }
+    }
     override val typeParameters: List<KSTypeParameter> by lazy {
         ktPropertySymbol.typeParameters.map { KSTypeParameterImpl(it) }
     }
-    override val packageName: KSName
-        get() = TODO("Not yet implemented")
+    override val packageName: KSName by lazy {
+        KSNameImpl(this.containingFile?.packageName?.asString() ?: "")
+    }
     override val parentDeclaration: KSDeclaration?
         get() = TODO("Not yet implemented")
-    override val containingFile: KSFile?
-        get() = TODO("Not yet implemented")
-    override val docString: String?
-        get() = TODO("Not yet implemented")
-    override val modifiers: Set<Modifier>
-        get() = TODO("Not yet implemented")
-    override val origin: Origin
-        get() = TODO("Not yet implemented")
-    override val location: Location
-        get() = TODO("Not yet implemented")
+
+    override val containingFile: KSFile? by lazy {
+        (ktPropertySymbol.psi?.containingFile as? KtFile)?.let { KSFileImpl(it) }
+    }
+    override val docString: String? by lazy {
+        ktPropertySymbol.psi?.getDocString()
+    }
+
+    override val modifiers: Set<Modifier> by lazy {
+        ktPropertySymbol.psi?.safeAs<KtProperty>()?.toKSModifiers() ?: emptySet()
+    }
+
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktPropertySymbol.origin)
+    }
+
+    override val location: Location by lazy {
+        ktPropertySymbol.psi?.toLocation() ?: NonExistLocation
+    }
+
     override val parent: KSNode? by lazy {
         analyzeWithSymbolAsContext(ktPropertySymbol) {
-            ktPropertySymbol.getContainingSymbol()?.let{ KSClassDeclarationImpl(it as KtNamedClassOrObjectSymbol)}
-                ?: KSFileSymbolImpl(ktPropertySymbol.psi!!.containingFile as KtFile)
+            ktPropertySymbol.getContainingSymbol()?.let { KSClassDeclarationImpl(it as KtNamedClassOrObjectSymbol) }
+                ?: KSFileImpl(ktPropertySymbol.psi!!.containingFile as KtFile)
         }
     }
 
     override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
-        TODO("Not yet implemented")
+        return visitor.visitPropertyDeclaration(this, data)
+    }
+
+    override val annotations: Sequence<KSAnnotation> by lazy {
+        ktPropertySymbol.annotations.asSequence().map { KSAnnotationImpl(it) }
     }
 
-    override val annotations: Sequence<KSAnnotation>
-        get() = TODO("Not yet implemented")
     override val isActual: Boolean
         get() = TODO("Not yet implemented")
     override val isExpect: Boolean
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeArgumentImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeArgumentImpl.kt
index ba67304c..06c68846 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeArgumentImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeArgumentImpl.kt
@@ -27,10 +27,13 @@ class KSTypeArgumentImpl(private val ktTypeArgument: KtTypeArgument) : KSTypeArg
         }
     }
 
-    override val type: KSTypeReference?
-        get() = TODO("Not yet implemented")
-    override val annotations: Sequence<KSAnnotation>
-        get() = TODO("Not yet implemented")
+    override val type: KSTypeReference? by lazy {
+        ktTypeArgument.type?.let { KSTypeReferenceImpl(it) }
+    }
+
+    override val annotations: Sequence<KSAnnotation> by lazy {
+        TODO()
+    }
     override val origin: Origin = Origin.KOTLIN
     override val location: Location
         get() = TODO("Not yet implemented")
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeParameterImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeParameterImpl.kt
index ce041c54..b6f6fb4b 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeParameterImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeParameterImpl.kt
@@ -1,53 +1,69 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSDeclaration
-import com.google.devtools.ksp.symbol.KSFile
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSTypeParameter
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Modifier
-import com.google.devtools.ksp.symbol.Origin
-import com.google.devtools.ksp.symbol.Variance
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.toKSModifiers
 import org.jetbrains.kotlin.analysis.api.symbols.KtTypeParameterSymbol
+import org.jetbrains.kotlin.psi.KtTypeParameter
+import org.jetbrains.kotlin.utils.addToStdlib.safeAs
 
 class KSTypeParameterImpl(private val ktTypeParameterSymbol: KtTypeParameterSymbol) : KSTypeParameter {
-    override val name: KSName
-        get() = TODO("Not yet implemented")
-    override val variance: Variance
-        get() = TODO("Not yet implemented")
-    override val isReified: Boolean
-        get() = TODO("Not yet implemented")
-    override val bounds: Sequence<KSTypeReference>
-        get() = TODO("Not yet implemented")
-    override val simpleName: KSName
-        get() = TODO("Not yet implemented")
-    override val qualifiedName: KSName?
-        get() = TODO("Not yet implemented")
-    override val typeParameters: List<KSTypeParameter>
-        get() = TODO("Not yet implemented")
-    override val packageName: KSName
-        get() = TODO("Not yet implemented")
+    override val name: KSName by lazy {
+        KSNameImpl(ktTypeParameterSymbol.name.asString())
+    }
+
+    override val variance: Variance by lazy {
+        when (ktTypeParameterSymbol.variance) {
+            org.jetbrains.kotlin.types.Variance.IN_VARIANCE -> Variance.COVARIANT
+            org.jetbrains.kotlin.types.Variance.OUT_VARIANCE -> Variance.CONTRAVARIANT
+            org.jetbrains.kotlin.types.Variance.INVARIANT -> Variance.INVARIANT
+        }
+
+    }
+
+    override val isReified: Boolean = ktTypeParameterSymbol.isReified
+
+    override val bounds: Sequence<KSTypeReference> by lazy {
+        ktTypeParameterSymbol.upperBounds.asSequence().map { KSTypeReferenceImpl(it) }
+    }
+
+    override val simpleName: KSName by lazy {
+        KSNameImpl(ktTypeParameterSymbol.name.asString())
+    }
+    override val qualifiedName: KSName? by lazy {
+        KSNameImpl(ktTypeParameterSymbol.psi?.safeAs<KtTypeParameter>()?.fqName?.asString() ?: "")
+    }
+    override val typeParameters: List<KSTypeParameter> = emptyList()
+
+    override val packageName: KSName by lazy {
+        KSNameImpl(this.containingFile?.packageName?.asString() ?: "")
+    }
     override val parentDeclaration: KSDeclaration?
         get() = TODO("Not yet implemented")
-    override val containingFile: KSFile?
-        get() = TODO("Not yet implemented")
-    override val docString: String?
-        get() = TODO("Not yet implemented")
-    override val modifiers: Set<Modifier>
-        get() = TODO("Not yet implemented")
-    override val origin: Origin
-        get() = TODO("Not yet implemented")
-    override val location: Location
-        get() = TODO("Not yet implemented")
+
+    override val containingFile: KSFile? by lazy {
+        ktTypeParameterSymbol.toContainingFile()
+    }
+
+    override val docString: String? by lazy {
+        ktTypeParameterSymbol.toDocString()
+    }
+
+    override val modifiers: Set<Modifier> by lazy {
+        ktTypeParameterSymbol.psi?.safeAs<KtTypeParameter>()?.toKSModifiers() ?: emptySet()
+    }
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktTypeParameterSymbol.origin)
+    }
+
+    override val location: Location by lazy {
+        ktTypeParameterSymbol.psi?.toLocation() ?: NonExistLocation
+    }
+
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
     override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
-        TODO("Not yet implemented")
+        return visitor.visitTypeParameter(this, data)
     }
 
     override val annotations: Sequence<KSAnnotation>
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeReferenceImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeReferenceImpl.kt
index cc5d2d53..b09d4046 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeReferenceImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSTypeReferenceImpl.kt
@@ -23,10 +23,12 @@ class KSTypeReferenceImpl(private val ktType: KtType) : KSTypeReference {
     override val annotations: Sequence<KSAnnotation> by lazy {
         ktType.annotations.map { KSAnnotationImpl(it) }.asSequence()
     }
+
     override val origin: Origin = Origin.KOTLIN
 
     override val location: Location
         get() = TODO("Not yet implemented")
+
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueArgumentImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueArgumentImpl.kt
index b1d68751..51e0c291 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueArgumentImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueArgumentImpl.kt
@@ -1,12 +1,6 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSValueArgument
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.symbol.*
 import org.jetbrains.kotlin.analysis.api.annotations.KtNamedAnnotationValue
 
 class KSValueArgumentImpl(private val namedAnnotationValue: KtNamedAnnotationValue) : KSValueArgument {
@@ -20,8 +14,9 @@ class KSValueArgumentImpl(private val namedAnnotationValue: KtNamedAnnotationVal
 
     override val origin: Origin = Origin.KOTLIN
 
-    override val location: Location
-        get() = TODO("Not yet implemented")
+    override val location: Location by lazy {
+        namedAnnotationValue.expression.sourcePsi?.toLocation() ?: NonExistLocation
+    }
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueParameterImpl.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueParameterImpl.kt
index 1638cdee..3a8fbe76 100644
--- a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueParameterImpl.kt
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/KSValueParameterImpl.kt
@@ -1,19 +1,14 @@
 package com.google.devtools.ksp.impl.symbol.kotlin
 
-import com.google.devtools.ksp.symbol.KSAnnotation
-import com.google.devtools.ksp.symbol.KSName
-import com.google.devtools.ksp.symbol.KSNode
-import com.google.devtools.ksp.symbol.KSTypeReference
-import com.google.devtools.ksp.symbol.KSValueParameter
-import com.google.devtools.ksp.symbol.KSVisitor
-import com.google.devtools.ksp.symbol.Location
-import com.google.devtools.ksp.symbol.Origin
+import com.google.devtools.ksp.symbol.*
 import org.jetbrains.kotlin.analysis.api.annotations.annotations
 import org.jetbrains.kotlin.analysis.api.symbols.KtValueParameterSymbol
 
 class KSValueParameterImpl(private val ktValueParameterSymbol: KtValueParameterSymbol) : KSValueParameter {
-    override val name: KSName?
-        get() = TODO("Not yet implemented")
+    override val name: KSName? by lazy {
+        KSNameImpl(ktValueParameterSymbol.name.asString())
+    }
+
     override val type: KSTypeReference by lazy {
         KSTypeReferenceImpl(ktValueParameterSymbol.returnType)
     }
@@ -35,10 +30,13 @@ class KSValueParameterImpl(private val ktValueParameterSymbol: KtValueParameterS
     override val annotations: Sequence<KSAnnotation> by lazy {
         ktValueParameterSymbol.annotations.asSequence().map { KSAnnotationImpl(it) }
     }
-    override val origin: Origin
-        get() = TODO("Not yet implemented")
-    override val location: Location
-        get() = TODO("Not yet implemented")
+    override val origin: Origin by lazy {
+        mapAAOrigin(ktValueParameterSymbol.origin)
+    }
+
+    override val location: Location by lazy {
+        ktValueParameterSymbol.psi?.toLocation() ?: NonExistLocation
+    }
     override val parent: KSNode?
         get() = TODO("Not yet implemented")
 
diff --git a/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/util.kt b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/util.kt
new file mode 100644
index 00000000..5c9d3fea
--- /dev/null
+++ b/kotlin-analysis-api/src/main/kotlin/com/google/devtools/ksp/impl/symbol/kotlin/util.kt
@@ -0,0 +1,39 @@
+package com.google.devtools.ksp.impl.symbol.kotlin
+
+import com.google.devtools.ksp.getDocString
+import com.google.devtools.ksp.impl.KSPCoreEnvironment
+import com.google.devtools.ksp.symbol.*
+import com.intellij.psi.PsiElement
+import org.jetbrains.kotlin.analysis.api.symbols.KtSymbol
+import org.jetbrains.kotlin.analysis.api.symbols.KtSymbolOrigin
+import org.jetbrains.kotlin.psi.KtElement
+
+internal val ktSymbolOriginToOrigin = mapOf(
+    KtSymbolOrigin.JAVA to Origin.JAVA,
+    KtSymbolOrigin.SOURCE to Origin.KOTLIN,
+    KtSymbolOrigin.SAM_CONSTRUCTOR to Origin.SYNTHETIC,
+    KtSymbolOrigin.SOURCE_MEMBER_GENERATED to Origin.SYNTHETIC,
+    KtSymbolOrigin.DELEGATED to Origin.SYNTHETIC,
+    KtSymbolOrigin.PROPERTY_BACKING_FIELD to Origin.KOTLIN,
+    KtSymbolOrigin.JAVA_SYNTHETIC_PROPERTY to Origin.SYNTHETIC,
+    KtSymbolOrigin.INTERSECTION_OVERRIDE to Origin.KOTLIN
+)
+
+internal fun mapAAOrigin(ktSymbolOrigin: KtSymbolOrigin): Origin {
+    return ktSymbolOriginToOrigin[ktSymbolOrigin] ?: throw IllegalStateException("unhandled origin ${ktSymbolOrigin.name}")
+}
+
+internal fun PsiElement.toLocation(): Location {
+    val file = this.containingFile
+    val document = KSPCoreEnvironment.instance.psiDocumentManager.getDocument(file) ?: return NonExistLocation
+    return FileLocation(file.virtualFile.path, document.getLineNumber(this.textOffset) + 1)
+}
+
+internal fun KtSymbol.toContainingFile(): KSFile? {
+    return when (val psi = this.psi) {
+        is KtElement -> KSFileImpl(psi.containingKtFile)
+        else -> null
+    }
+}
+
+internal fun KtSymbol.toDocString(): String? = this.psi?.getDocString()