org.jetbrains.kotlin.js.translate.intrinsic.objects.objectsIntrinsics.kt Maven / Gradle / Ivy
/*
* 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.js.translate.intrinsic.objects
import org.jetbrains.kotlin.builtins.CompanionObjectMapping
import org.jetbrains.kotlin.builtins.StandardNames
import org.jetbrains.kotlin.builtins.isMappedIntrinsicCompanionObject
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.js.backend.ast.JsExpression
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameUnsafe
class DefaultClassObjectIntrinsic( val fqName: FqName): ObjectIntrinsic {
override fun apply(context: TranslationContext) = context.getReferenceToIntrinsic(fqName.asString())
}
class ObjectIntrinsics {
private val cache = mutableMapOf()
fun getIntrinsic(classDescriptor: ClassDescriptor): ObjectIntrinsic? {
if (classDescriptor in cache) return cache[classDescriptor]
return createIntrinsic(classDescriptor).also {
cache[classDescriptor] = it
}
}
private fun createIntrinsic(classDescriptor: ClassDescriptor): ObjectIntrinsic? {
if (classDescriptor.fqNameUnsafe == StandardNames.FqNames._enum ||
!CompanionObjectMapping.isMappedIntrinsicCompanionObject(classDescriptor)
) {
return null
}
val containingDeclaration = classDescriptor.containingDeclaration
val name = Name.identifier(containingDeclaration.name.asString() + "CompanionObject")
return DefaultClassObjectIntrinsic(FqName("kotlin.js.internal").child(name))
}
}
interface ObjectIntrinsic {
fun apply(context: TranslationContext): JsExpression
}