Ilya Gorbunov
7438d12ad7
Make them depend on bootstrap stdlib. This is to prevent recompiling the entire project when we need just to generate builtins sources.
69 lines
2.2 KiB
Kotlin
69 lines
2.2 KiB
Kotlin
/*
|
|
* 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.generators.builtins.progressionIterators
|
|
|
|
import org.jetbrains.kotlin.generators.builtins.*
|
|
import org.jetbrains.kotlin.generators.builtins.generateBuiltIns.*
|
|
import org.jetbrains.kotlin.generators.builtins.ProgressionKind.*
|
|
import java.io.PrintWriter
|
|
|
|
fun integerProgressionIterator(kind: ProgressionKind): String {
|
|
val t = kind.capitalized
|
|
|
|
val incrementType = progressionIncrementType(kind)
|
|
|
|
val (toInt, toType) = when (kind) {
|
|
CHAR -> ".toInt()" to ".to$t()"
|
|
else -> "" to ""
|
|
}
|
|
|
|
return """/**
|
|
* An iterator over a progression of values of type `$t`.
|
|
* @property step the number by which the value is incremented on each step.
|
|
*/
|
|
internal class ${t}ProgressionIterator(first: $t, last: $t, val step: $incrementType) : ${t}Iterator() {
|
|
private val finalElement = last$toInt
|
|
private var hasNext: Boolean = if (step > 0) first <= last else first >= last
|
|
private var next = if (hasNext) first$toInt else finalElement
|
|
|
|
override fun hasNext(): Boolean = hasNext
|
|
|
|
override fun next$t(): $t {
|
|
val value = next
|
|
if (value == finalElement) {
|
|
if (!hasNext) throw kotlin.NoSuchElementException()
|
|
hasNext = false
|
|
}
|
|
else {
|
|
next += step
|
|
}
|
|
return value$toType
|
|
}
|
|
}"""
|
|
}
|
|
|
|
|
|
class GenerateProgressionIterators(out: PrintWriter) : BuiltInsSourceGenerator(out) {
|
|
override fun getPackage() = "kotlin.ranges"
|
|
override fun generateBody() {
|
|
for (kind in ProgressionKind.values()) {
|
|
out.println(integerProgressionIterator(kind))
|
|
out.println()
|
|
}
|
|
}
|
|
}
|