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Merge pull request #13148 from igfoo/igfoo/arrays

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Kotlin: Add some documentation on arrays, and tweak the tests we use for them
This commit is contained in:
Ian Lynagh
2023-05-12 18:52:16 +01:00
committed by GitHub
parent 5dfe52afd0 826e87f435
commit 202037e925
1 changed files with 20 additions and 6 deletions
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26
java/kotlin-extractor/src/main/kotlin/KotlinUsesExtractor.kt
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@@ -239,8 +239,6 @@ open class KotlinUsesExtractor(
return UseClassInstanceResult(classTypeResult, extractClass)
}
private fun isArray(t: IrSimpleType) = t.isBoxedArray || t.isPrimitiveArray()
private fun extractClassLaterIfExternal(c: IrClass) {
if (isExternalDeclaration(c)) {
extractExternalClassLater(c)
@@ -551,6 +549,22 @@ open class KotlinUsesExtractor(
)
}
/*
Kotlin arrays can be broken down as:
isArray(t)
|- t.isBoxedArray
| |- t.isArray() e.g. Array<Boolean>, Array<Boolean?>
| |- t.isNullableArray() e.g. Array<Boolean>?, Array<Boolean?>?
|- t.isPrimitiveArray() e.g. BooleanArray
For the corresponding Java types:
Boxed arrays are represented as e.g. java.lang.Boolean[].
Primitive arrays are represented as e.g. boolean[].
*/
private fun isArray(t: IrType) = t.isBoxedArray || t.isPrimitiveArray()
data class ArrayInfo(val elementTypeResults: TypeResults,
val componentTypeResults: TypeResults,
val dimensions: Int)
@@ -565,7 +579,7 @@ open class KotlinUsesExtractor(
*/
private fun useArrayType(t: IrType, isPrimitiveArray: Boolean): ArrayInfo {
if (!t.isBoxedArray && !t.isPrimitiveArray()) {
if (!isArray(t)) {
val nullableT = if (t.isPrimitiveType() && !isPrimitiveArray) t.makeNullable() else t
val typeResults = useType(nullableT)
return ArrayInfo(typeResults, typeResults, 0)
@@ -1141,13 +1155,13 @@ open class KotlinUsesExtractor(
}
} else {
t.classOrNull?.let { tCls ->
if (t.isArray() || t.isNullableArray()) {
if (t.isBoxedArray) {
(t.arguments.singleOrNull() as? IrTypeProjection)?.let { elementTypeArg ->
val elementType = elementTypeArg.type
val replacedElementType = kClassToJavaClass(elementType)
if (replacedElementType !== elementType) {
val newArg = makeTypeProjection(replacedElementType, elementTypeArg.variance)
return tCls.typeWithArguments(listOf(newArg)).codeQlWithHasQuestionMark(t.isNullableArray())
return tCls.typeWithArguments(listOf(newArg)).codeQlWithHasQuestionMark(t.isNullable())
}
}
}
@@ -1578,7 +1592,7 @@ open class KotlinUsesExtractor(
}
if (owner is IrClass) {
if (t.isArray() || t.isNullableArray()) {
if (t.isBoxedArray) {
val elementType = t.getArrayElementType(pluginContext.irBuiltIns)
val erasedElementType = erase(elementType)
return owner.typeWith(erasedElementType).codeQlWithHasQuestionMark(t.isNullable())