1 files changed, 74 insertions, 0 deletions
diff --git a/compiler-plugin/src/main/kotlin/com/google/devtools/ksp/symbol/impl/binary/KSTypeParameterDescriptorImpl.kt b/compiler-plugin/src/main/kotlin/com/google/devtools/ksp/symbol/impl/binary/KSTypeParameterDescriptorImpl.kt
new file mode 100644
index 00000000..98de3b98
--- /dev/null
+++ b/compiler-plugin/src/main/kotlin/com/google/devtools/ksp/symbol/impl/binary/KSTypeParameterDescriptorImpl.kt
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2020 Google LLC
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.devtools.ksp.symbol.impl.binary
+
+import com.google.devtools.ksp.ExceptionMessage
+import com.google.devtools.ksp.KSObjectCache
+import com.google.devtools.ksp.processing.impl.KSNameImpl
+import com.google.devtools.ksp.symbol.*
+import com.google.devtools.ksp.symbol.impl.kotlin.KSExpectActualNoImpl
+import com.google.devtools.ksp.toKSVariance
+import org.jetbrains.kotlin.descriptors.ClassDescriptor
+import org.jetbrains.kotlin.descriptors.FunctionDescriptor
+import org.jetbrains.kotlin.descriptors.PropertyDescriptor
+import org.jetbrains.kotlin.descriptors.TypeParameterDescriptor
+import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
+
+class KSTypeParameterDescriptorImpl private constructor(val descriptor: TypeParameterDescriptor) :
+    KSTypeParameter,
+    KSDeclarationDescriptorImpl(descriptor),
+    KSExpectActual by KSExpectActualNoImpl() {
+    companion object : KSObjectCache<TypeParameterDescriptor, KSTypeParameterDescriptorImpl>() {
+        fun getCached(descriptor: TypeParameterDescriptor) = cache.getOrPut(descriptor) {
+            KSTypeParameterDescriptorImpl(descriptor)
+        }
+    }
+
+    override val bounds: Sequence<KSTypeReference> by lazy {
+        descriptor.upperBounds.asSequence().map { KSTypeReferenceDescriptorImpl.getCached(it, origin, this) }
+    }
+
+    override val typeParameters: List<KSTypeParameter> = emptyList()
+
+    override val parentDeclaration: KSDeclaration? by lazy {
+        when (val parent = descriptor.containingDeclaration) {
+            is ClassDescriptor -> KSClassDeclarationDescriptorImpl.getCached(parent)
+            is FunctionDescriptor -> KSFunctionDeclarationDescriptorImpl.getCached(parent)
+            is PropertyDescriptor -> KSPropertyDeclarationDescriptorImpl.getCached(parent)
+            else -> throw IllegalStateException(
+                "Unexpected containing declaration for ${descriptor.fqNameSafe}, $ExceptionMessage"
+            )
+        }
+    }
+
+    override val modifiers: Set<Modifier> = emptySet()
+
+    override val isReified: Boolean by lazy {
+        descriptor.isReified
+    }
+
+    override val name: KSName by lazy {
+        KSNameImpl.getCached(descriptor.name.asString())
+    }
+
+    override val variance: Variance = descriptor.variance.toKSVariance()
+
+    override fun <D, R> accept(visitor: KSVisitor<D, R>, data: D): R {
+        return visitor.visitTypeParameter(this, data)
+    }
+}