org.jetbrains.kotlin.js.translate.expression.InlineMetadata.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 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.expression
import org.jetbrains.kotlin.descriptors.CallableDescriptor
import org.jetbrains.kotlin.js.backend.ast.*
import org.jetbrains.kotlin.js.config.JsConfig
import org.jetbrains.kotlin.js.translate.context.Namer
private val METADATA_PROPERTIES_COUNT = 2
class InlineMetadata(val tag: JsStringLiteral, val function: JsFunction) {
companion object {
@JvmStatic
fun compose(function: JsFunction, descriptor: CallableDescriptor, config: JsConfig): InlineMetadata {
val tag = JsStringLiteral(Namer.getFunctionTag(descriptor, config))
return InlineMetadata(tag, function)
}
@JvmStatic
fun decompose(expression: JsExpression?): InlineMetadata? =
when (expression) {
is JsInvocation -> decomposeCreateFunctionCall(expression)
else -> null
}
private fun decomposeCreateFunctionCall(call: JsInvocation): InlineMetadata? {
val qualifier = call.qualifier
if (qualifier !is JsNameRef || qualifier.ident != Namer.DEFINE_INLINE_FUNCTION) return null
val arguments = call.arguments
if (arguments.size != METADATA_PROPERTIES_COUNT) return null
val tag = arguments[0] as? JsStringLiteral
val function = arguments[1] as? JsFunction
if (tag == null || function == null) return null
return InlineMetadata(tag, function)
}
}
val functionWithMetadata: JsExpression
get() {
val propertiesList = listOf(tag, function)
return JsInvocation(Namer.createInlineFunction(), propertiesList)
}
}