Ilya Gorbunov
b64b96eee6
- Int.toChar was left non-deprecated because the replacement is not intrinsic yet. - Number.toChar was left non-deprecated because otherwise the deprecation propagates to the override, Int.toChar. KT-23451
69 lines
2.2 KiB
Kotlin
69 lines
2.2 KiB
Kotlin
/*
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* Copyright 2010-2015 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jetbrains.kotlin.generators.builtins.progressionIterators
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import org.jetbrains.kotlin.generators.builtins.*
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import org.jetbrains.kotlin.generators.builtins.generateBuiltIns.*
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import org.jetbrains.kotlin.generators.builtins.ProgressionKind.*
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import java.io.PrintWriter
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fun integerProgressionIterator(kind: ProgressionKind): String {
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val t = kind.capitalized
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val incrementType = progressionIncrementType(kind)
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val (toInt, toType) = when (kind) {
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CHAR -> ".code" to ".toChar()"
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else -> "" to ""
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}
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return """/**
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* An iterator over a progression of values of type `$t`.
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* @property step the number by which the value is incremented on each step.
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*/
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internal class ${t}ProgressionIterator(first: $t, last: $t, val step: $incrementType) : ${t}Iterator() {
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private val finalElement: $incrementType = last$toInt
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private var hasNext: Boolean = if (step > 0) first <= last else first >= last
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private var next: $incrementType = if (hasNext) first$toInt else finalElement
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override fun hasNext(): Boolean = hasNext
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override fun next$t(): $t {
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val value = next
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if (value == finalElement) {
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if (!hasNext) throw kotlin.NoSuchElementException()
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hasNext = false
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}
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else {
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next += step
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}
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return value$toType
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}
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}"""
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}
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class GenerateProgressionIterators(out: PrintWriter) : BuiltInsSourceGenerator(out) {
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override fun getPackage() = "kotlin.ranges"
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override fun generateBody() {
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for (kind in ProgressionKind.values()) {
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out.println(integerProgressionIterator(kind))
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out.println()
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}
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}
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}
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