org.jetbrains.kotlin.js.translate.intrinsic.functions.basic.RangeToIntrinsic.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2016 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.functions.basic
import org.jetbrains.kotlin.js.backend.ast.JsExpression
import org.jetbrains.kotlin.js.backend.ast.JsNew
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PackageFragmentDescriptor
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.js.translate.reference.ReferenceTranslator
import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
class RangeToIntrinsic(function: FunctionDescriptor) : FunctionIntrinsicWithReceiverComputed() {
val rangeTypeDescriptor = function.returnType!!.constructor.declarationDescriptor as ClassDescriptor
override fun apply(receiver: JsExpression?, arguments: List, context: TranslationContext): JsExpression {
val packageName = (rangeTypeDescriptor.containingDeclaration as PackageFragmentDescriptor).fqName
val packageDescriptor = context.currentModule.getPackage(packageName)
val existingClasses = packageDescriptor.memberScope.getContributedDescriptors(DescriptorKindFilter.CLASSIFIERS) {
it == rangeTypeDescriptor.name
}
val finalClass = (existingClasses.firstOrNull() as? ClassDescriptor) ?: rangeTypeDescriptor
val constructor = ReferenceTranslator.translateAsTypeReference(finalClass, context)
return JsNew(constructor, listOfNotNull(receiver) + arguments)
}
}