org.jetbrains.kotlin.codegen.codegenUtil.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
import org.jetbrains.kotlin.types.KotlinType
import org.jetbrains.org.objectweb.asm.Label
import org.jetbrains.org.objectweb.asm.commons.InstructionAdapter
fun generateIsCheck(
v: InstructionAdapter,
type: KotlinType,
generateInstanceOfInstruction: (InstructionAdapter) -> Unit
) {
if (type.isMarkedNullable) {
val nope = Label()
val end = Label()
with(v) {
dup()
ifnull(nope)
generateInstanceOfInstruction(this)
goTo(end)
mark(nope)
pop()
iconst(1)
mark(end)
}
}
else {
generateInstanceOfInstruction(v)
}
}