azalea/kotlin-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fir2Ir, JVM IR: support flexible Array types loaded from Java

Browse Source 
We don't have true flexible types in the IR, but we approximate it with
internal type annotations, such as FlexibleNullability,
FlexibleMutability, RawType. These annotations are then handled
specially in JvmIrTypeSystemContext, which can construct a fake flexible
type so that type checker on IR types would behave exactly as on
frontend types.

As shown in KT-63441, one instance of flexible types where flexibility
was lost during conversion to IR is Java array/vararg types. It's
necessary to support it so that IR fake overrides could be constructed
correctly, because IR fake override checker requires parameter types to
be equal. So this change introduces another internal type annotation,
FlexibleArrayElementVariance, which is only applicable to types with
classifier kotlin/Array, and which signifies that the annotated type
`Array<X>` should rather be seen as `Array<X>..Array<out X>`.

 #KT-63441 Fixed
 #KT-63446 Fixed
This commit is contained in:
Alexander Udalov
2023-11-24 16:34:49 +01:00
committed by Space Team
parent e98902ce74
commit ee8d42532b
35 changed files with 571 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/testData/ir/irText/firProblems/reflectFindAnnotationOnDefaultMethodParameter.fir.ir.txt
Vendored
+3 -3
View File
@@ -36,18 +36,18 @@ FILE fqName:<root> fileName:/reflectFindAnnotationOnDefaultMethodParameter.kt
<T>: <root>.box.<no name provided>
$receiver: GET_VAR 'val impl: <root>.box.<no name provided> declared in <root>.box' type=<root>.box.<no name provided> origin=null
p0: CONST String type=kotlin.String value="m"
p1: VARARG type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] java.lang.Class<*>?>? varargElementType=@[FlexibleNullability] java.lang.Class<*>?
p1: VARARG type=@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.Class<*>?>? varargElementType=@[FlexibleNullability] java.lang.Class<*>?
CALL 'public final fun <get-java> <T> (): java.lang.Class<T of kotlin.jvm.<get-java>> declared in kotlin.jvm' type=java.lang.Class<kotlin.String> origin=GET_PROPERTY
<T>: kotlin.String
$receiver: CLASS_REFERENCE 'CLASS IR_EXTERNAL_DECLARATION_STUB CLASS name:String modality:FINAL visibility:public superTypes:[kotlin.Comparable<kotlin.String>; kotlin.CharSequence; java.io.Serializable]' type=kotlin.reflect.KClass<kotlin.String>
VAR name:parameter type:@[FlexibleNullability] java.lang.reflect.Parameter? [val]
CALL 'public final fun get (index: kotlin.Int): T of kotlin.Array declared in kotlin.Array' type=@[FlexibleNullability] java.lang.reflect.Parameter? origin=null
$this: CALL 'public open fun getParameters (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] java.lang.reflect.Parameter?>? declared in java.lang.reflect.Method' type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] java.lang.reflect.Parameter?>? origin=GET_PROPERTY
$this: CALL 'public open fun getParameters (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.reflect.Parameter?>? declared in java.lang.reflect.Method' type=@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.reflect.Parameter?>? origin=GET_PROPERTY
$this: GET_VAR 'val method: @[FlexibleNullability] java.lang.reflect.Method? declared in <root>.box' type=@[FlexibleNullability] java.lang.reflect.Method? origin=null
index: CONST Int type=kotlin.Int value=0
VAR name:size type:kotlin.Int [val]
CALL 'public final fun <get-size> (): kotlin.Int declared in kotlin.Array' type=kotlin.Int origin=GET_PROPERTY
$this: CALL 'public open fun getAnnotations (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>? declared in java.lang.reflect.Parameter' type=@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>? origin=GET_PROPERTY
$this: CALL 'public open fun getAnnotations (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>? declared in java.lang.reflect.Parameter' type=@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Annotation?>? origin=GET_PROPERTY
$this: GET_VAR 'val parameter: @[FlexibleNullability] java.lang.reflect.Parameter? declared in <root>.box' type=@[FlexibleNullability] java.lang.reflect.Parameter? origin=null
WHEN type=kotlin.Unit origin=IF
BRANCH