org.jetbrains.kotlin.builtins.BuiltinsPackageFragment.kt Maven / Gradle / Ivy

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/*
 * 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.builtins

import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.name.FqName
import org.jetbrains.kotlin.serialization.builtins.BuiltInsProtoBuf
import org.jetbrains.kotlin.serialization.deserialization.DeserializedPackageFragment
import org.jetbrains.kotlin.serialization.deserialization.NameResolverImpl
import org.jetbrains.kotlin.serialization.deserialization.descriptors.DeserializedPackageMemberScope
import org.jetbrains.kotlin.storage.StorageManager
import java.io.DataInputStream
import java.io.InputStream

class BuiltinsPackageFragment(
        fqName: FqName,
        storageManager: StorageManager,
        module: ModuleDescriptor,
        loadResource: (path: String) -> InputStream?
) : DeserializedPackageFragment(fqName, storageManager, module, BuiltInsSerializedResourcePaths, loadResource) {
    private val builtinsMessage = run {
        val stream = loadResourceSure(BuiltInsSerializedResourcePaths.getBuiltInsFilePath(fqName))
        val dataInput = DataInputStream(stream)
        val version = BuiltInsBinaryVersion(*(1..dataInput.readInt()).map { dataInput.readInt() }.toIntArray())

        if (!version.isCompatible()) {
            // TODO: report a proper diagnostic
            throw UnsupportedOperationException(
                    "Kotlin built-in definition format version is not supported: " +
                    "expected ${BuiltInsBinaryVersion.INSTANCE}, actual $version. " +
                    "Please update Kotlin"
            )
        }

        BuiltInsProtoBuf.BuiltIns.parseFrom(stream, BuiltInsSerializedResourcePaths.extensionRegistry)
    }

    override val nameResolver = NameResolverImpl(builtinsMessage.strings, builtinsMessage.qualifiedNames)

    override val classIdToProto =
            builtinsMessage.classList.associateBy { klass ->
                nameResolver.getClassId(klass.fqName)
            }

    override fun computeMemberScope() =
            DeserializedPackageMemberScope(
                    this, builtinsMessage.`package`, nameResolver, packagePartSource = null, components = components,
                    classNames = { classIdToProto.keys.filter { classId -> !classId.isNestedClass }.map { it.shortClassName } }
            )
}