org.jetbrains.kotlin.js.translate.intrinsic.functions.factories.ThrowableConstructorIntrinsicFactory.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.factories
import org.jetbrains.kotlin.builtins.StandardNames
import org.jetbrains.kotlin.descriptors.ConstructorDescriptor
import org.jetbrains.kotlin.descriptors.FunctionDescriptor
import org.jetbrains.kotlin.js.backend.ast.JsExpression
import org.jetbrains.kotlin.js.backend.ast.JsInvocation
import org.jetbrains.kotlin.js.translate.callTranslator.CallInfo
import org.jetbrains.kotlin.js.translate.context.Namer
import org.jetbrains.kotlin.js.translate.context.TranslationContext
import org.jetbrains.kotlin.js.translate.intrinsic.functions.basic.FunctionIntrinsic
import org.jetbrains.kotlin.js.translate.utils.JsAstUtils
import org.jetbrains.kotlin.resolve.descriptorUtil.fqNameSafe
import org.jetbrains.kotlin.types.typeUtil.isNotNullThrowable
object ThrowableConstructorIntrinsicFactory : FunctionIntrinsicFactory {
override fun getIntrinsic(descriptor: FunctionDescriptor, context: TranslationContext): FunctionIntrinsic? {
if (descriptor !is ConstructorDescriptor) return null
if (!descriptor.constructedClass.defaultType.isNotNullThrowable()) return null
return Intrinsic
}
object Intrinsic : FunctionIntrinsic() {
override fun apply(callInfo: CallInfo, arguments: List, context: TranslationContext): JsExpression {
val constructor = callInfo.resolvedCall.resultingDescriptor
val argumentsToPass = arguments.toMutableList()
val hasCauseParameter = constructor.valueParameters.any {
it.type.constructor.declarationDescriptor?.fqNameSafe == StandardNames.FqNames.throwable
}
if (constructor.valueParameters.size == 1 && hasCauseParameter) {
argumentsToPass.add(0, Namer.getUndefinedExpression())
}
return JsInvocation(JsAstUtils.pureFqn("newThrowable", Namer.kotlinObject()), argumentsToPass)
}
}
}