Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright 2010-2015 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.builtins.functions
import org.jetbrains.kotlin.builtins.KOTLIN_REFLECT_FQ_NAME
import org.jetbrains.kotlin.builtins.KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME
import org.jetbrains.kotlin.builtins.functions.FunctionClassDescriptor.Kind
import org.jetbrains.kotlin.descriptors.*
import org.jetbrains.kotlin.descriptors.annotations.Annotations
import org.jetbrains.kotlin.descriptors.impl.AbstractClassDescriptor
import org.jetbrains.kotlin.descriptors.impl.TypeParameterDescriptorImpl
import org.jetbrains.kotlin.incremental.components.NoLookupLocation
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.resolve.scopes.StaticScopeForKotlinClass
import org.jetbrains.kotlin.storage.StorageManager
import org.jetbrains.kotlin.types.*
import org.jetbrains.kotlin.utils.toReadOnlyList
import java.util.ArrayList
/**
* A [ClassDescriptor] representing the fictitious class for a function type, such as kotlin.Function1 or kotlin.reflect.KFunction2.
*
* If the class represents kotlin.Function1, its only supertype is kotlin.Function.
*
* If the class represents kotlin.reflect.KFunction1, it has two supertypes: kotlin.Function1 and kotlin.reflect.KFunction.
* This allows to use both 'invoke' and reflection API on function references obtained by '::'.
*/
public class FunctionClassDescriptor(
private val storageManager: StorageManager,
private val containingDeclaration: PackageFragmentDescriptor,
val functionKind: Kind,
val arity: Int
) : AbstractClassDescriptor(storageManager, functionKind.numberedClassName(arity)) {
public enum class Kind(val packageFqName: FqName, val classNamePrefix: String) {
Function(BUILT_INS_PACKAGE_FQ_NAME, "Function"),
KFunction(KOTLIN_REFLECT_FQ_NAME, "KFunction");
fun numberedClassName(arity: Int) = Name.identifier("$classNamePrefix$arity")
companion object {
fun byPackage(fqName: FqName) = when (fqName) {
BUILT_INS_PACKAGE_FQ_NAME -> Function
KOTLIN_REFLECT_FQ_NAME -> KFunction
else -> null
}
}
}
private val staticScope = StaticScopeForKotlinClass(this)
private val typeConstructor = FunctionTypeConstructor()
private val memberScope = FunctionClassScope(storageManager, this)
override fun getContainingDeclaration() = containingDeclaration
override fun getStaticScope() = staticScope
override fun getTypeConstructor(): TypeConstructor = typeConstructor
override fun getUnsubstitutedMemberScope() = memberScope
override fun getCompanionObjectDescriptor() = null
override fun getConstructors() = emptyList()
override fun getKind() = ClassKind.INTERFACE
override fun getModality() = Modality.ABSTRACT
override fun getUnsubstitutedPrimaryConstructor() = null
override fun getVisibility() = Visibilities.PUBLIC
override fun isCompanionObject() = false
override fun isInner() = false
override fun getAnnotations() = Annotations.EMPTY
override fun getSource() = SourceElement.NO_SOURCE
private inner class FunctionTypeConstructor : AbstractClassTypeConstructor() {
private val parameters: List
init {
val result = ArrayList()
fun typeParameter(variance: Variance, name: String) {
result.add(TypeParameterDescriptorImpl.createWithDefaultBound(
this@FunctionClassDescriptor, Annotations.EMPTY, false, variance, Name.identifier(name), result.size()
))
}
(1..arity).map { i ->
typeParameter(Variance.IN_VARIANCE, "P$i")
}
typeParameter(Variance.OUT_VARIANCE, "R")
parameters = result.toReadOnlyList()
}
private val supertypes = storageManager.createLazyValue {
val result = ArrayList(2)
fun add(packageFragment: PackageFragmentDescriptor, name: Name) {
val descriptor = packageFragment.getMemberScope().getClassifier(name, NoLookupLocation.FROM_BUILTINS) as? ClassDescriptor
?: error("Class $name not found in $packageFragment")
val typeConstructor = descriptor.getTypeConstructor()
// Substitute all type parameters of the super class with our last type parameters
val arguments = getParameters().takeLast(typeConstructor.getParameters().size()).map {
TypeProjectionImpl(it.getDefaultType())
}
result.add(JetTypeImpl.create(Annotations.EMPTY, descriptor, false, arguments))
}
// Add unnumbered base class, e.g. Function for Function{n}, KFunction for KFunction{n}
add(containingDeclaration, Name.identifier(functionKind.classNamePrefix))
// For KFunction{n}, add corresponding numbered Function{n} class, e.g. Function2 for KFunction2
if (functionKind == Kind.KFunction) {
val module = containingDeclaration.getContainingDeclaration()
val kotlinPackageFragment = module.getPackage(BUILT_INS_PACKAGE_FQ_NAME).fragments.single()
add(kotlinPackageFragment, Kind.Function.numberedClassName(arity))
}
result.toReadOnlyList()
}
override fun getParameters() = parameters
override fun getSupertypes(): Collection = supertypes()
override fun getDeclarationDescriptor() = this@FunctionClassDescriptor
override fun isDenotable() = true
override fun isFinal() = false
override fun getAnnotations() = Annotations.EMPTY
override fun toString() = getDeclarationDescriptor().toString()
}
override fun toString() = getName().asString()
}
