/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.ir.declarations.lazy
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.ir.IrElementBase
import org.jetbrains.kotlin.ir.UNDEFINED_OFFSET
import org.jetbrains.kotlin.ir.declarations.IrDeclaration
import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
import org.jetbrains.kotlin.ir.declarations.IrDeclarationParent
import org.jetbrains.kotlin.ir.declarations.IrValueParameter
import org.jetbrains.kotlin.ir.declarations.impl.IrValueParameterImpl
import org.jetbrains.kotlin.ir.expressions.IrCall
import org.jetbrains.kotlin.ir.util.DeclarationStubGenerator
import org.jetbrains.kotlin.ir.util.TypeTranslator
import org.jetbrains.kotlin.resolve.scopes.MemberScope
import org.jetbrains.kotlin.types.KotlinType
import kotlin.reflect.KProperty
abstract class IrLazyDeclarationBase(
startOffset: Int,
endOffset: Int,
override val origin: IrDeclarationOrigin,
private val stubGenerator: DeclarationStubGenerator,
protected val typeTranslator: TypeTranslator
) : IrElementBase(startOffset, endOffset), IrDeclaration {
protected fun KotlinType.toIrType() = typeTranslator.translateType(this)
protected fun ReceiverParameterDescriptor.generateReceiverParameterStub(): IrValueParameter =
IrValueParameterImpl(
UNDEFINED_OFFSET, UNDEFINED_OFFSET, origin, this,
type.toIrType(), null
)
protected fun generateMemberStubs(memberScope: MemberScope, container: MutableList<IrDeclaration>) {
generateChildStubs(memberScope.getContributedDescriptors(), container)
}
protected fun generateChildStubs(descriptors: Collection<DeclarationDescriptor>, declarations: MutableList<IrDeclaration>) {
descriptors.mapTo(declarations) { generateMemberStub(it) }
}
private fun generateMemberStub(descriptor: DeclarationDescriptor): IrDeclaration =
stubGenerator.generateMemberStub(descriptor)
override var parent: IrDeclarationParent by lazyVar {
createLazyParent()!!
}
override val annotations: MutableList<IrCall> = arrayListOf()
private fun createLazyParent(): IrDeclarationParent? {
val currentDescriptor = descriptor
val containingDeclaration =
((currentDescriptor as? PropertyAccessorDescriptor)?.correspondingProperty ?: currentDescriptor).containingDeclaration
return when (containingDeclaration) {
is PackageFragmentDescriptor -> stubGenerator.generateOrGetEmptyExternalPackageFragmentStub(containingDeclaration).also {
it.declarations.add(this)
}
is ClassDescriptor -> stubGenerator.generateClassStub(containingDeclaration)
is FunctionDescriptor -> stubGenerator.generateFunctionStub(containingDeclaration)
else -> throw AssertionError("Package or class expected: $containingDeclaration; for $currentDescriptor")
}
}
}