org.gradle.configurationcache.serialization.codecs.BeanCodec.kt Maven / Gradle / Ivy
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/*
* Copyright 2020 the original author or authors.
*
* 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.gradle.configurationcache.serialization.codecs
import org.gradle.api.internal.GeneratedSubclass
import org.gradle.api.internal.GeneratedSubclasses
import org.gradle.configurationcache.serialization.Codec
import org.gradle.configurationcache.serialization.ReadContext
import org.gradle.configurationcache.serialization.WriteContext
import org.gradle.configurationcache.serialization.decodePreservingIdentity
import org.gradle.configurationcache.serialization.encodePreservingIdentityOf
import org.gradle.configurationcache.serialization.withBeanTrace
internal
object BeanCodec : Codec {
override suspend fun WriteContext.encode(value: Any) {
encodePreservingIdentityOf(value) {
val beanType = GeneratedSubclasses.unpackType(value)
withBeanTrace(beanType) {
writeBeanOf(beanType, value)
}
}
}
override suspend fun ReadContext.decode(): Any =
decodePreservingIdentity { id ->
val beanType = readClass()
val generated = readBoolean()
withBeanTrace(beanType) {
readBeanOf(beanType, generated, id)
}
}
private
suspend fun WriteContext.writeBeanOf(beanType: Class<*>, value: Any) {
writeClass(beanType)
// TODO - should collect the details of the decoration (eg enabled annotations, etc), and also carry this information with the serialized class reference
// instead of separately for each bean
val generated = value is GeneratedSubclass
writeBoolean(generated)
beanStateWriterFor(value.javaClass).run {
writeStateOf(value)
}
}
private
suspend fun ReadContext.readBeanOf(beanType: Class<*>, generated: Boolean, id: Int): Any {
val beanReader = beanStateReaderFor(beanType)
val bean = beanReader.run { newBeanWithId(generated, id) }
val effectiveBeanType = bean.javaClass
val effectiveBeanReader =
if (beanType === effectiveBeanType) beanReader
else beanStateReaderFor(effectiveBeanType)
effectiveBeanReader.run {
readStateOf(bean)
}
return bean
}
}
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