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[utils] Move atMostOne to core/util.runtime

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There is nothing backend-specific about this helper function.
This commit is contained in:
Sergej Jaskiewicz
2023-08-22 21:07:15 +02:00
committed by teamcity
parent fa600a58ac
commit 56cb0bf071
15 changed files with 44 additions and 29 deletions
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compiler/backend-common/src/org/jetbrains/kotlin/backend/common/CollectionUtil.kt
-16
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@@ -1,16 +0,0 @@
/*
* Copyright 2000-2019 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.backend.common
fun <T> Collection<T>.atMostOne(): T? {
return when (this.size) {
0 -> null
1 -> this.iterator().next()
else -> throw IllegalArgumentException("Collection has more than one element.")
}
}
inline fun <T> Iterable<T>.atMostOne(predicate: (T) -> Boolean): T? = this.filter(predicate).atMostOne()
compiler/backend-common/src/org/jetbrains/kotlin/backend/common/SimpleMemberScope.kt
+1
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@@ -11,6 +11,7 @@ import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
import org.jetbrains.kotlin.resolve.scopes.MemberScopeImpl
import org.jetbrains.kotlin.utils.Printer
import org.jetbrains.kotlin.utils.atMostOne
class SimpleMemberScope(val members: List<DeclarationDescriptor>) : MemberScopeImpl() {
compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower/StringConcatenationLowering.kt
+1 -1
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@@ -18,7 +18,7 @@ package org.jetbrains.kotlin.backend.common.lower
import org.jetbrains.kotlin.backend.common.CommonBackendContext
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.ir.builders.*
import org.jetbrains.kotlin.ir.declarations.*
import org.jetbrains.kotlin.ir.expressions.IrExpression
compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/JsCommonBackendContext.kt
+1 -1
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@@ -8,7 +8,7 @@ package org.jetbrains.kotlin.ir.backend.js
import org.jetbrains.kotlin.backend.common.BackendContext
import org.jetbrains.kotlin.backend.common.CommonBackendContext
import org.jetbrains.kotlin.backend.common.InlineClassesUtils
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.descriptors.ClassDescriptor
import org.jetbrains.kotlin.descriptors.ModuleDescriptor
import org.jetbrains.kotlin.descriptors.PropertyDescriptor
compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/lower/coroutines/AbstractSuspendFunctionsLowering.kt
+1
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@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.ir.visitors.IrElementVisitorVoid
import org.jetbrains.kotlin.ir.visitors.acceptChildrenVoid
import org.jetbrains.kotlin.ir.visitors.acceptVoid
import org.jetbrains.kotlin.name.Name
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.utils.memoryOptimizedMap
import org.jetbrains.kotlin.utils.memoryOptimizedMapIndexed
import org.jetbrains.kotlin.utils.memoryOptimizedPlus
core/util.runtime/src/org/jetbrains/kotlin/utils/CollectionUtil.kt
+28
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@@ -47,3 +47,31 @@ inline fun <reified T, reified R, C : MutableCollection<in R>> Iterable<*>.filte
}
return destination
}
/**
* Returns the single element of the collection if it contains at most one element.
*
* If the collection is empty, returns `null`.
*
* If the collection contains exactly one element, returns that element.
*
* If the collection contains more than one element, throws an exception.
*/
fun <T> Collection<T>.atMostOne(): T? {
return when (size) {
0 -> null
1 -> this.iterator().next()
else -> throw IllegalArgumentException("Collection has more than one element.")
}
}
/**
* Returns at most one element from the iterable that satisfies the given predicate.
*
* If there are no elements that satisfy [predicate], returns `null`.
*
* If there is exactly one element that satisfies [predicate], returns that element.
*
* If there are more such elements, throws an exception.
*/
inline fun <T> Iterable<T>.atMostOne(predicate: (T) -> Boolean): T? = this.filter(predicate).atMostOne()
core/util.runtime/src/org/jetbrains/kotlin/utils/MemoryOptimizedCollectionUtil.kt
+4 -3
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@@ -104,12 +104,13 @@ infix fun <T, R> Collection<T>.memoryOptimizedZip(other: Collection<R>): List<Pa
}
/**
* [Sequence] variant of [org.jetbrains.kotlin.backend.common.atMostOne]
* [Sequence] variant of [org.jetbrains.kotlin.utils.atMostOne]
*
* So, when:
* - there is no element then `null` will be returned
* - there is a single element then the element will be returned
* - there is more than one element then the error will be thrown
* @see org.jetbrains.kotlin.backend.common.atMostOne
* @see org.jetbrains.kotlin.utils.atMostOne
*/
fun <T> Sequence<T>.atMostOne(): T? {
val iterator = iterator()
@@ -143,4 +144,4 @@ inline fun <reified T> Iterable<*>.findIsInstanceAnd(predicate: (T) -> Boolean):
* The same as [Collection.toMutableList] extension function, but it returns a SmartList which is better with in sense of memory consumption
* @see Collection.toMutableList
*/
fun <T> Collection<T>.toSmartList(): List<T> = SmartList<T>(this)
fun <T> Collection<T>.toSmartList(): List<T> = SmartList<T>(this)
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/DependenciesTracker.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.konan.descriptors.isInteropLibrary
import org.jetbrains.kotlin.backend.konan.ir.isFromInteropLibrary
import org.jetbrains.kotlin.backend.konan.llvm.FunctionOrigin
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/InlineClasses.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.konan.descriptors.findPackage
import org.jetbrains.kotlin.backend.konan.ir.getSuperClassNotAny
import org.jetbrains.kotlin.builtins.PrimitiveType
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/descriptors/DescriptorUtils.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan.descriptors
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.konan.*
import org.jetbrains.kotlin.backend.konan.ir.getSuperClassNotAny
import org.jetbrains.kotlin.backend.konan.ir.getSuperInterfaces
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/descriptors/LegacyDescriptorUtils.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan.descriptors
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.konan.RuntimeNames
import org.jetbrains.kotlin.builtins.konan.KonanBuiltIns
import org.jetbrains.kotlin.descriptors.*
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/NewIrUtils.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan.ir
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.konan.DECLARATION_ORIGIN_INLINE_CLASS_SPECIAL_FUNCTION
import org.jetbrains.kotlin.backend.konan.descriptors.allOverriddenFunctions
import org.jetbrains.kotlin.backend.konan.descriptors.isFromInteropLibrary
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/Autoboxing.kt
+1 -1
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@@ -7,7 +7,7 @@ package org.jetbrains.kotlin.backend.konan.lower
import org.jetbrains.kotlin.backend.common.AbstractValueUsageTransformer
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.common.getOrPut
import org.jetbrains.kotlin.backend.common.lower.*
import org.jetbrains.kotlin.backend.konan.*
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/BuiltinOperatorLowering.kt
+1 -1
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@@ -6,7 +6,7 @@
package org.jetbrains.kotlin.backend.konan.lower
import org.jetbrains.kotlin.backend.common.FileLoweringPass
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.common.lower.IrBuildingTransformer
import org.jetbrains.kotlin.backend.common.lower.at
import org.jetbrains.kotlin.backend.common.lower.irNot
kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations/EscapeAnalysis.kt
+1 -1
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@@ -5,7 +5,7 @@
package org.jetbrains.kotlin.backend.konan.optimizations
import org.jetbrains.kotlin.backend.common.atMostOne
import org.jetbrains.kotlin.utils.atMostOne
import org.jetbrains.kotlin.backend.common.peek
import org.jetbrains.kotlin.backend.common.pop
import org.jetbrains.kotlin.backend.common.push