.kotlin.kotlin-compiler.1.3.11.source-code.SamWrapperTransformer.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.codegen.inline
import org.jetbrains.org.objectweb.asm.ClassReader
import org.jetbrains.org.objectweb.asm.ClassVisitor
class SamWrapperTransformationInfo(override val oldClassName: String, private val inliningContext: InliningContext, private val alreadyRegenerated: Boolean): TransformationInfo {
override val nameGenerator: NameGenerator
get() = object: NameGenerator("stub") {
override fun getGeneratorClass(): String {
error ("Shouldn't be called on $oldClassName transformation")
}
override fun subGenerator(inliningMethod: String?): NameGenerator {
error ("Shouldn't be called on $oldClassName transformation")
}
override fun subGenerator(lambdaNoWhen: Boolean, nameSuffix: String?): NameGenerator {
error ("Shouldn't be called on $oldClassName transformation")
}
}
//TODO consider to use package class instead of inliningContext.root.callSiteInfo.ownerClassName
override val newClassName: String
get() = inliningContext.root.callSiteInfo.ownerClassName + "\$inlined" + "\$sam$".run { this + oldClassName.substringAfter(this) }
override fun shouldRegenerate(sameModule: Boolean) = !sameModule && !alreadyRegenerated
override fun canRemoveAfterTransformation() = false
override fun createTransformer(inliningContext: InliningContext, sameModule: Boolean, continuationClassName: String?) =
SamWrapperTransformer(this, inliningContext)
}
class SamWrapperTransformer(transformationInfo: SamWrapperTransformationInfo, private val inliningContext: InliningContext) :
ObjectTransformer(transformationInfo, inliningContext.state) {
override fun doTransform(parentRemapper: FieldRemapper): InlineResult {
val classReader = createClassReader()
val classBuilder = createRemappingClassBuilderViaFactory(inliningContext)
classReader.accept(object : ClassVisitor(API, classBuilder.visitor) {
override fun visit(version: Int, access: Int, name: String, signature: String?, superName: String, interfaces: Array) {
classBuilder.defineClass(null, version, access, name, signature, superName, interfaces)
}
}, ClassReader.SKIP_FRAMES)
classBuilder.done()
return transformationResult
}
}