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/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* 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 org.jetbrains.kotlin.codegen
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.descriptors.impl.LocalVariableDescriptor
import org.jetbrains.kotlin.descriptors.impl.PropertyDescriptorImpl
import org.jetbrains.kotlin.descriptors.impl.PropertyGetterDescriptorImpl
import org.jetbrains.kotlin.descriptors.impl.PropertySetterDescriptorImpl
import org.jetbrains.kotlin.serialization.DescriptorSerializer
import java.util.*
/**
* Given a function descriptor, creates another function descriptor with type parameters copied from outer context(s).
* This is needed because once we're serializing this to a proto, there's no place to store information about external type parameters.
*/
fun createFreeFakeLambdaDescriptor(descriptor: FunctionDescriptor): FunctionDescriptor {
return createFreeDescriptor(descriptor)
}
private fun createFreeDescriptor(descriptor: D): D {
@Suppress("UNCHECKED_CAST")
val builder = descriptor.newCopyBuilder() as CallableMemberDescriptor.CopyBuilder
val typeParameters = ArrayList(0)
builder.setTypeParameters(typeParameters)
var container: DeclarationDescriptor? = descriptor.containingDeclaration
while (container != null) {
if (container is ClassDescriptor) {
typeParameters.addAll(container.declaredTypeParameters)
}
else if (container is CallableDescriptor && container !is ConstructorDescriptor) {
typeParameters.addAll(container.typeParameters)
}
container = container.containingDeclaration
}
return if (typeParameters.isEmpty()) descriptor else builder.build()!!
}
/**
* Given a local delegated variable descriptor, creates a descriptor of a property that should be observed
* when using reflection on that local variable at runtime.
* Only members used by [DescriptorSerializer.propertyProto] are implemented correctly in this property descriptor.
*/
fun createFreeFakeLocalPropertyDescriptor(descriptor: LocalVariableDescriptor): PropertyDescriptor {
val property = PropertyDescriptorImpl.create(
descriptor.containingDeclaration, descriptor.annotations, Modality.FINAL, descriptor.visibility, descriptor.isVar,
descriptor.name, CallableMemberDescriptor.Kind.DECLARATION, descriptor.source, false, descriptor.isConst,
false, false, false, @Suppress("DEPRECATION") descriptor.isDelegated
)
property.setType(descriptor.type, descriptor.typeParameters, descriptor.dispatchReceiverParameter, descriptor.extensionReceiverParameter)
property.initialize(
descriptor.getter?.run {
PropertyGetterDescriptorImpl(property, annotations, modality, visibility, true, isExternal, isInline, kind, null, source).apply {
initialize([email protected])
}
},
descriptor.setter?.run {
PropertySetterDescriptorImpl(property, annotations, modality, visibility, true, isExternal, isInline, kind, null, source).apply {
initialize([email protected]())
}
}
)
return createFreeDescriptor(property)
}
