org.jetbrains.kotlin.codegen.intrinsics.IteratorNext.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.builtins.KotlinBuiltIns.BUILT_INS_PACKAGE_FQ_NAME
import org.jetbrains.kotlin.codegen.AsmUtil
import org.jetbrains.kotlin.codegen.Callable
import org.jetbrains.kotlin.codegen.CallableMethod
import org.jetbrains.kotlin.resolve.jvm.AsmTypes
import org.jetbrains.org.objectweb.asm.Type
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
public class IteratorNext : IntrinsicMethod() {
private fun getIteratorName(returnType: Type): String {
return when (returnType) {
Type.CHAR_TYPE -> "Char"
Type.BOOLEAN_TYPE -> "Boolean"
Type.BYTE_TYPE -> "Byte"
Type.SHORT_TYPE -> "Short"
Type.INT_TYPE -> "Int"
Type.LONG_TYPE -> "Long"
Type.FLOAT_TYPE -> "Float"
Type.DOUBLE_TYPE -> "Double"
else -> throw UnsupportedOperationException("Can't get correct name for iterator from type: " + returnType)
}
}
override fun toCallable(method: CallableMethod): Callable {
val type = AsmUtil.unboxType(method.returnType)
return object : IntrinsicCallable(type, listOf(), AsmTypes.OBJECT_TYPE, null) {
override fun invokeIntrinsic(v: InstructionAdapter) {
val name = getIteratorName(returnType)
v.invokevirtual(
BUILT_INS_PACKAGE_FQ_NAME.asString() + "/" + name + "Iterator",
"next$name",
"()" + returnType.getDescriptor(),
false
)
}
}
}
}