kotlin.reflect.jvm.internal.impl.renderer.DescriptorRendererOptionsImpl.kt Maven / Gradle / Ivy

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/*
 * 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 kotlin.reflect.jvm.internal.impl.renderer

import kotlin.reflect.jvm.internal.impl.name.FqName
import kotlin.reflect.jvm.internal.impl.types.KotlinType
import java.lang.IllegalStateException
import java.lang.reflect.Modifier
import kotlin.jvm.internal.PropertyReference1Impl
import kotlin.properties.Delegates
import kotlin.properties.ObservableProperty
import kotlin.properties.ReadWriteProperty

internal class DescriptorRendererOptionsImpl : DescriptorRendererOptions {
    var isLocked: Boolean = false
        private set

    fun lock() {
        assert(!isLocked)
        isLocked = true
    }

    fun copy(): DescriptorRendererOptionsImpl {
        val copy = DescriptorRendererOptionsImpl()

        //TODO: use Kotlin reflection
        for (field in this::class.java.declaredFields) {
            if (field.modifiers.and(Modifier.STATIC) != 0) continue
            field.isAccessible = true
            val property = field.get(this) as? ObservableProperty<*> ?: continue
            assert(!field.name.startsWith("is")) { "Fields named is* are not supported here yet" }
            val value = property.getValue(
                    this,
                    PropertyReference1Impl(DescriptorRendererOptionsImpl::class, field.name, "get" + field.name.capitalize())
            )
            field.set(copy, copy.property(value as Any))
        }

        return copy
    }

    private fun  property(initialValue: T): ReadWriteProperty {
        return Delegates.vetoable(initialValue) { _, _, _ ->
            if (isLocked) {
                throw IllegalStateException("Cannot modify readonly DescriptorRendererOptions")
            }
            else {
                true
            }
        }
    }

    override var classifierNamePolicy: ClassifierNamePolicy by property(ClassifierNamePolicy.SOURCE_CODE_QUALIFIED)
    override var withDefinedIn by property(true)
    override var modifiers: Set by property(DescriptorRendererModifier.DEFAULTS)
    override var startFromName by property(false)
    override var startFromDeclarationKeyword by property(false)
    override var debugMode by property(false)
    override var classWithPrimaryConstructor by property(false)
    override var verbose by property(false)
    override var unitReturnType by property(true)
    override var withoutReturnType by property(false)
    override var normalizedVisibilities by property(false)
    override var showInternalKeyword by property(true)
    override var uninferredTypeParameterAsName by property(false)
    override var includePropertyConstant by property(false)
    override var withoutTypeParameters by property(false)
    override var withoutSuperTypes by property(false)
    override var typeNormalizer by property<(KotlinType) -> KotlinType>({ it })
    override var renderDefaultValues by property(true)
    override var secondaryConstructorsAsPrimary by property(true)
    override var overrideRenderingPolicy by property(OverrideRenderingPolicy.RENDER_OPEN)
    override var valueParametersHandler: DescriptorRenderer.ValueParametersHandler by property(DescriptorRenderer.ValueParametersHandler.DEFAULT)
    override var textFormat by property(RenderingFormat.PLAIN)
    override var parameterNameRenderingPolicy by property(ParameterNameRenderingPolicy.ALL)
    override var receiverAfterName by property(false)
    override var renderCompanionObjectName by property(false)
    override var renderAccessors by property(false)
    override var renderDefaultAnnotationArguments by property(false)

    override var excludedAnnotationClasses by property(emptySet())

    override var excludedTypeAnnotationClasses by property(
            ExcludedTypeAnnotations.annotationsForNullabilityAndMutability
                    + ExcludedTypeAnnotations.internalAnnotationsForResolve)

    override var annotationArgumentsRenderingPolicy by property(AnnotationArgumentsRenderingPolicy.NO_ARGUMENTS)

    override var alwaysRenderModifiers by property(false)

    override var renderConstructorKeyword by property(true)

    override var renderUnabbreviatedType: Boolean by property(true)

    override var includeAdditionalModifiers: Boolean by property(true)

    override var parameterNamesInFunctionalTypes: Boolean by property(true)
}