org.jetbrains.kotlin.codegen.intrinsics.RangeTo.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2015 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.intrinsics
import org.jetbrains.kotlin.codegen.Callable
import org.jetbrains.kotlin.codegen.CallableMethod
import org.jetbrains.kotlin.codegen.StackValue
import org.jetbrains.org.objectweb.asm.Type
import org.jetbrains.org.objectweb.asm.Type.*
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
public class RangeTo : IntrinsicMethod() {
private fun nameToPrimitive(name: String): Type =
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: $name")
}
override fun toCallable(method: CallableMethod): Callable {
val argType = nameToPrimitive(method.returnType.getInternalName().substringAfter("kotlin/").substringBefore("Range"))
return object : IntrinsicCallable(
method.returnType,
method.valueParameterTypes.map { argType },
nullOr(method.dispatchReceiverType, argType),
nullOr(method.extensionReceiverType, argType)
) {
override fun beforeParameterGeneration(v: InstructionAdapter, value: StackValue?) {
v.anew(returnType)
v.dup()
value?.moveToTopOfStack(value.type, v, 2)
}
override fun invokeIntrinsic(v: InstructionAdapter) {
v.invokespecial(returnType.getInternalName(), "", Type.getMethodDescriptor(Type.VOID_TYPE, argType, argType), false)
}
}
}
}