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

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
@@ -46,16 +46,16 @@ FILE fqName:<root> fileName:/ArrayListOverrides.kt
overridden:
public open fun clone (): @[EnhancedNullability] kotlin.Any declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
overridden:
public open fun toArray (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
public open fun toArray (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<kotlin.String>, p0:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>?) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<kotlin.String>, p0:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>?) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>? [fake_override]
overridden:
public open fun toArray <T> (p0: @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
public open fun toArray <T> (p0: @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
TYPE_PARAMETER name:T index:0 variance: superTypes:[@[FlexibleNullability] kotlin.Any?] reified:false
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>?
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A1.toArray?>?
FUN FAKE_OVERRIDE name:get visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>, p0:kotlin.Int) returnType:@[EnhancedNullability] kotlin.String [fake_override,operator]
overridden:
public open fun get (p0: kotlin.Int): @[EnhancedNullability] E of java.util.ArrayList declared in java.util.ArrayList
@@ -243,16 +243,16 @@ FILE fqName:<root> fileName:/ArrayListOverrides.kt
overridden:
public open fun clone (): @[EnhancedNullability] kotlin.Any declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
overridden:
public open fun toArray (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
public open fun toArray (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<kotlin.String>, p0:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>?) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<kotlin.String>, p0:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>?) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>? [fake_override]
overridden:
public open fun toArray <T> (p0: @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
public open fun toArray <T> (p0: @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
TYPE_PARAMETER name:T index:0 variance: superTypes:[@[FlexibleNullability] kotlin.Any?] reified:false
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<kotlin.String>
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>?
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.A2.toArray?>?
FUN FAKE_OVERRIDE name:get visibility:public modality:OPEN <> ($this:java.util.ArrayList<kotlin.String>, p0:kotlin.Int) returnType:@[EnhancedNullability] kotlin.String [fake_override,operator]
overridden:
public open fun get (p0: kotlin.Int): @[EnhancedNullability] E of java.util.ArrayList declared in java.util.ArrayList
+10 -10
View File
@@ -252,16 +252,16 @@ FILE fqName:<root> fileName:/MultiList.kt
overridden:
public open fun <get-size> (): kotlin.Int declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
overridden:
public open fun toArray (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
public open fun toArray (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in java.util.ArrayList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>, p0:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>, p0:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>? [fake_override]
overridden:
public open fun toArray <T> (p0: @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
public open fun toArray <T> (p0: @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>?): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of java.util.ArrayList.toArray?>? declared in java.util.ArrayList
TYPE_PARAMETER name:T index:0 variance: superTypes:[@[FlexibleNullability] kotlin.Any?] reified:false
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?
FUN FAKE_OVERRIDE name:add visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<T of <root>.SomeList>>, p0:@[EnhancedNullability] <root>.Some<T of <root>.SomeList>) returnType:kotlin.Boolean [fake_override]
overridden:
public open fun add (p0: @[EnhancedNullability] E of java.util.ArrayList): kotlin.Boolean declared in java.util.ArrayList
@@ -441,16 +441,16 @@ FILE fqName:<root> fileName:/MultiList.kt
overridden:
public open fun <get-size> (): kotlin.Int declared in <root>.SomeList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<kotlin.String>>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<kotlin.String>>) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<kotlin.String>>) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? [fake_override]
overridden:
public open fun toArray (): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in <root>.SomeList
public open fun toArray (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] kotlin.Any?>? declared in <root>.SomeList
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<kotlin.String>>
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<<root>.Some<kotlin.String>>, p0:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>?) returnType:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>? [fake_override]
FUN FAKE_OVERRIDE name:toArray visibility:public modality:OPEN <T> ($this:java.util.ArrayList<<root>.Some<kotlin.String>>, p0:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>?) returnType:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>? [fake_override]
overridden:
public open fun toArray <T> (p0: @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?): @[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>? declared in <root>.SomeList
public open fun toArray <T> (p0: @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>?): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.SomeList.toArray?>? declared in <root>.SomeList
TYPE_PARAMETER name:T index:0 variance: superTypes:[@[FlexibleNullability] kotlin.Any?] reified:false
$this: VALUE_PARAMETER name:<this> type:java.util.ArrayList<<root>.Some<kotlin.String>>
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>?
VALUE_PARAMETER name:p0 index:0 type:@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] T of <root>.FinalList.toArray?>?
FUN FAKE_OVERRIDE name:add visibility:public modality:OPEN <> ($this:java.util.ArrayList<<root>.Some<kotlin.String>>, p0:@[EnhancedNullability] <root>.Some<kotlin.String>) returnType:kotlin.Boolean [fake_override]
overridden:
public open fun add (p0: @[EnhancedNullability] <root>.Some<T of <root>.SomeList>): kotlin.Boolean declared in <root>.SomeList
@@ -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
@@ -0,0 +1,8 @@
FILE fqName:<root> fileName:/throwableStackTrace.kt
FUN name:foo visibility:public modality:FINAL <> (t:kotlin.Throwable) returnType:kotlin.Unit
VALUE_PARAMETER name:t index:0 type:kotlin.Throwable
BLOCK_BODY
CALL 'public open fun setStackTrace (p0: @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.StackTraceElement?>?): kotlin.Unit declared in kotlin.Throwable' type=kotlin.Unit origin=EQ
$this: GET_VAR 't: kotlin.Throwable declared in <root>.foo' type=kotlin.Throwable origin=null
p0: CALL 'public open fun getStackTrace (): @[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.StackTraceElement?>? declared in kotlin.Throwable' type=@[FlexibleNullability] @[FlexibleArrayElementVariance] kotlin.Array<out @[FlexibleNullability] java.lang.StackTraceElement?>? origin=GET_PROPERTY
$this: GET_VAR 't: kotlin.Throwable declared in <root>.foo' type=kotlin.Throwable origin=null
@@ -0,0 +1,3 @@
fun foo(t: Throwable) {
t.setStackTrace(p0 = t.getStackTrace())
}
@@ -1,8 +1,7 @@
// TARGET_BACKEND: JVM
// FIR_IDENTICAL
// WITH_STDLIB
// FULL_JDK
fun foo(t: Throwable) {
t.stackTrace = t.stackTrace
}
}