org.jetbrains.kotlin.codegen.DefaultCallArgs.kt Maven / Gradle / Ivy
/*
* Copyright 2000-2018 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.codegen
import org.jetbrains.kotlin.resolve.jvm.AsmTypes
import org.jetbrains.org.objectweb.asm.Type
import java.util.*
class DefaultCallArgs(val size: Int) {
private val bits: BitSet = BitSet(size)
fun mark(index: Int) {
assert (index < size) {
"Mask index should be less then size, but $index >= $size"
}
bits.set(index)
}
fun toInts(): List {
if (bits.isEmpty || size == 0) {
return emptyList()
}
val masks = ArrayList(1)
var mask = 0
for (i in 0 until size) {
if (i != 0 && i % Integer.SIZE == 0) {
masks.add(mask)
mask = 0
}
mask = mask or if (bits.get(i)) 1 shl (i % Integer.SIZE) else 0
}
masks.add(mask)
return masks
}
fun generateOnStackIfNeeded(callGenerator: CallGenerator, isConstructor: Boolean): Boolean {
val toInts = toInts()
if (!toInts.isEmpty()) {
for (mask in toInts) {
callGenerator.putValueIfNeeded(
JvmKotlinType(Type.INT_TYPE), StackValue.constant(mask, Type.INT_TYPE), ValueKind.DEFAULT_MASK
)
}
val parameterType = if (isConstructor) AsmTypes.DEFAULT_CONSTRUCTOR_MARKER else AsmTypes.OBJECT_TYPE
callGenerator.putValueIfNeeded(
JvmKotlinType(parameterType), StackValue.constant(null, parameterType), ValueKind.METHOD_HANDLE_IN_DEFAULT
)
}
return toInts.isNotEmpty()
}
}