/*
* 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.declaration
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
import org.jetbrains.kotlin.js.backend.ast.JsExpression
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.js.translate.utils.BindingUtils
import org.jetbrains.kotlin.js.translate.utils.JsAstUtils
import org.jetbrains.kotlin.js.translate.utils.JsDescriptorUtils
import org.jetbrains.kotlin.js.translate.utils.addFunctionButNotExport
import org.jetbrains.kotlin.psi.KtElement
import org.jetbrains.kotlin.psi.KtProperty
import org.jetbrains.kotlin.resolve.BindingContext
class FileDeclarationVisitor(private val context: TranslationContext) : AbstractDeclarationVisitor() {
override fun visitProperty(expression: KtProperty, context: TranslationContext) {
val propertyDescriptor = BindingUtils.getPropertyDescriptor(context.bindingContext(), expression)
val innerName = context.getInnerNameForDescriptor(propertyDescriptor)
val backingFieldRequired = context.bindingContext()[BindingContext.BACKING_FIELD_REQUIRED, propertyDescriptor] ?: false
if (backingFieldRequired || expression.delegateExpression != null) {
val initializer = context.translateDelegateOrInitializerExpression(expression)
context.addDeclarationStatement(JsAstUtils.newVar(innerName, null))
if (initializer != null) {
context.addTopLevelStatement(JsAstUtils.assignment(innerName.makeRef(), initializer).makeStmt())
}
}
super.visitProperty(expression, context)
}
override fun addFunction(descriptor: FunctionDescriptor, expression: JsExpression?, psi: KtElement?) {
if (expression == null) return
context.addFunctionButNotExport(descriptor, expression)
context.export(descriptor)
}
override fun addProperty(descriptor: PropertyDescriptor, getter: JsExpression, setter: JsExpression?) {
if (!JsDescriptorUtils.isSimpleFinalProperty(descriptor)) {
context.addFunctionButNotExport(descriptor.getter!!, getter)
if (setter != null) {
context.addFunctionButNotExport(descriptor.setter!!, setter)
}
}
context.export(descriptor)
}
override fun getBackingFieldReference(descriptor: PropertyDescriptor): JsExpression {
return context.getInnerReference(descriptor)
}
}