org.jetbrains.kotlin.backend.jvm.lower.ConstAndJvmFieldPropertiesLowering.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.backend.jvm.lower
import org.jetbrains.kotlin.backend.common.ClassLoweringPass
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.codegen.JvmCodegenUtil
import org.jetbrains.kotlin.descriptors.PropertyAccessorDescriptor
import org.jetbrains.kotlin.descriptors.PropertyGetterDescriptor
import org.jetbrains.kotlin.ir.IrStatement
import org.jetbrains.kotlin.ir.declarations.IrClass
import org.jetbrains.kotlin.ir.declarations.IrDeclaration
import org.jetbrains.kotlin.ir.declarations.IrFile
import org.jetbrains.kotlin.ir.declarations.IrProperty
import org.jetbrains.kotlin.ir.expressions.IrCall
import org.jetbrains.kotlin.ir.expressions.IrExpression
import org.jetbrains.kotlin.ir.expressions.IrMemberAccessExpression
import org.jetbrains.kotlin.ir.expressions.impl.IrGetFieldImpl
import org.jetbrains.kotlin.ir.expressions.impl.IrSetFieldImpl
import org.jetbrains.kotlin.ir.visitors.IrElementTransformerVoid
import org.jetbrains.kotlin.ir.visitors.transformChildrenVoid
import org.jetbrains.kotlin.synthetic.SyntheticJavaPropertyDescriptor
class ConstAndJvmFieldPropertiesLowering : IrElementTransformerVoid(), FileLoweringPass {
override fun lower(irFile: IrFile) {
irFile.transformChildrenVoid(this)
}
override fun visitDeclaration(declaration: IrDeclaration): IrStatement {
return super.visitDeclaration(declaration)
}
override fun visitProperty(declaration: IrProperty): IrStatement {
if (JvmCodegenUtil.isConstOrHasJvmFieldAnnotation(declaration.descriptor)) {
/*Safe or need copy?*/
declaration.getter = null
declaration.setter = null
}
return super.visitProperty(declaration)
}
override fun visitMemberAccess(expression: IrMemberAccessExpression): IrExpression {
return super.visitMemberAccess(expression)
}
override fun visitCall(expression: IrCall): IrExpression {
val descriptor = expression.descriptor
if (descriptor !is PropertyAccessorDescriptor) {
return super.visitCall(expression)
}
val property = descriptor.correspondingProperty
if (JvmCodegenUtil.isConstOrHasJvmFieldAnnotation(property)) {
return if (descriptor is PropertyGetterDescriptor) {
substituteGetter(descriptor, expression)
}
else {
substituteSetter(descriptor, expression)
}
}
else if (property is SyntheticJavaPropertyDescriptor) {
expression.dispatchReceiver = expression.extensionReceiver
expression.extensionReceiver = null
}
return super.visitCall(expression)
}
private fun substituteSetter(descriptor: PropertyAccessorDescriptor, expression: IrCall): IrSetFieldImpl {
return IrSetFieldImpl(
expression.startOffset,
expression.endOffset,
descriptor.correspondingProperty,
expression.dispatchReceiver,
expression.getValueArgument(descriptor.valueParameters.lastIndex)!!,
expression.origin,
expression.superQualifier
)
}
private fun substituteGetter(descriptor: PropertyGetterDescriptor, expression: IrCall): IrGetFieldImpl {
return IrGetFieldImpl(
expression.startOffset,
expression.endOffset,
descriptor.correspondingProperty,
expression.dispatchReceiver,
expression.origin,
expression.superQualifier
)
}
}