org.jetbrains.kotlin.backend.jvm.intrinsics.RangeTo.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.intrinsics
import org.jetbrains.kotlin.backend.jvm.codegen.BlockInfo
import org.jetbrains.kotlin.backend.jvm.codegen.ExpressionCodegen
import org.jetbrains.kotlin.backend.jvm.JvmBackendContext
import org.jetbrains.kotlin.codegen.StackValue
import org.jetbrains.kotlin.ir.expressions.IrFunctionAccessExpression
import org.jetbrains.kotlin.resolve.jvm.jvmSignature.JvmMethodSignature
import org.jetbrains.org.objectweb.asm.Type
import org.jetbrains.org.objectweb.asm.Type.*
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
import java.lang.IllegalStateException
object RangeTo : IntrinsicMethod() {
private fun rangeTypeToPrimitiveType(rangeType: Type): Type {
val fqName = rangeType.internalName
val name = fqName.substringAfter("kotlin/ranges/").substringBefore("Range")
return when (name) {
"Double" -> DOUBLE_TYPE
"Float" -> FLOAT_TYPE
"Long" -> LONG_TYPE
"Int" -> INT_TYPE
"Short" -> SHORT_TYPE
"Char" -> CHAR_TYPE
"Byte" -> BYTE_TYPE
else -> throw IllegalStateException("RangeTo intrinsic can only work for primitive types: $fqName")
}
}
override fun toCallable(expression: IrFunctionAccessExpression, signature: JvmMethodSignature, context: JvmBackendContext): IrIntrinsicFunction {
val argType = rangeTypeToPrimitiveType(signature.returnType)
return object: IrIntrinsicFunction(expression, signature, context, listOf(argType) + signature.valueParameters.map { argType }) {
override fun genInvokeInstruction(v: InstructionAdapter) {
v.invokespecial(signature.returnType.internalName, "", Type.getMethodDescriptor(Type.VOID_TYPE, argType, argType), false)
}
override fun invoke(
v: InstructionAdapter,
codegen: ExpressionCodegen,
data: BlockInfo,
expression: IrFunctionAccessExpression
): StackValue {
codegen.markLineNumber(expression)
v.anew(returnType)
v.dup()
return super.invoke(v, codegen, data, expression)
}
}
}
}