Substitution of type arguments to non-reified type parameters may lead
to accidental reification, which should not be done (see ^KT-60174 for
examples). So, we should erase them, except the few cases.
^KT-60174: Fixed
^KT-60175: Fixed
Motivation of using dispatch receiver type when calculating method owner
was discussed here: https://github.com/JetBrains/kotlin/pull/3054
However, this is incompatible with type erasure of non-reified type
parameters on inlining (which will be done in future). Consider the
code:
```
inline fun <T> f(arr: Array<T>, p: (T) -> Int): Int = p(arr[0])
fun box() = f(arrayOf("abacaba"), String::length)
```
After inlining and erasure, the type of `arr[0]` is `Any`. Thus, when
calculating owner of `String::length` we would have `Any` instead of
`String` if we used dispatch receiver type.
Note, that this change affects bytecode instruction that invokes
method, but does not change which method is being invoked.
This is more convenient behaviour for debugging with klib-tool than
just failing.
Note that enabling Partial Linkage globally in klib-tool is undesirable,
as it can auto-tweak IR (e.g. when overrides do not match), thus
distorting the rendered IR
^KT-61143 Fixed
In the future version of JavaIncompatibilityRulesOverridabilityCondition
for IR, we need to compute the original JVM signature of a declaration.
In descriptors, it's possible simply by using `original`.
Affects IR Evaluator in IDEA.
The problem is happening because
`ReflectiveAccessLowering#fieldLocationAndReceiver` returns the class
the field was called on, not the class the field was declared in.
Then the class is used for obtaining a field by using reflection's
`getDeclaredField` to make the field accessible after.
But `getDeclaredField` doesn't work for field declared in a superclass,
hence the error.
#KT-65012 fixed
Merge-request: KT-MR-13919
Merged-by: Alexander Kuznetsov <Aleksander.Kuznetsov@jetbrains.com>
Now fake overrides declarations invisible for override
are totally ignored by FakeOverrideBuilder, instead of
creating fake overrides for them, and than filtering them
out later.
As side-effect it fixes KT-64972.
^KT-64974
This is an addition to the f5bb477459
commit. Earlier, some of the validation checks were moved from
`stickyPostconditions` into separate lowering. But these
post-conditions checks were launched only when several flags were
set to true. In this commit, we just return to such behavior.
#KT-64116
This origin was set somewhat arbitrarily.
It actually only makes sense for `IrCall`s to property getters.
There were no places in lowerings that checked `IrGetField` expressions
for this origin value.
^KT-62500 Fixed
In before, actualizer was copying attributeOwnerId to new
nodes. This leads to attributeOwnerId linked to non-actualized
node. It's unclear what it leads to, so we just stop doing that.
In particular, if attributeOwnerId references another node,
this information would be lost.
^KT-64895
Now, we detect clashing signatures during serialization to KLIB and
report a compiler error if two or more declarations have the same
`IdSignature`
For example, for the following code:
```kotlin
@Deprecated("", level = DeprecationLevel.HIDDEN)
fun foo(): String = ""
fun foo(): Int = 0
```
the compiler will produce this diagnostic:
```
e: main.kt:1:1 Platform declaration clash: The following declarations
have the same KLIB signature (/foo|foo(){}[0]):
fun foo(): String defined in root package
fun foo(): Int defined in root package
e: main.kt:4:1 Platform declaration clash: The following declarations
have the same KLIB signature (/foo|foo(){}[0]):
fun foo(): String defined in root package
fun foo(): Int defined in root package
```
Note that we report this diagnostic during serialization and not earlier
(e.g., in fir2ir) for more robustness, so ensure that we check
exactly the signatures that will be written to a KLIB.
If we later introduce some annotation for customizing a declaration's
signature (e.g., for preserving binary compatibility), this
diagnostic will continue to work as expected.
^KT-63670 Fixed
To reuse this diagnostic reporter in `serialization.common` for
reporting signature clashes (KT-63670), we must extract it to
the `serializeModuleIntoKlib` method instead of creating it in
`JsKlibCheckers`.
However, because `serialization.common` does not depend on
the `backend.common` module in which
`KtDiagnosticReporterWithImplicitIrBasedContext` is declared,
we have to use the `IrDiagnosticReporter` interface in place of
`KtDiagnosticReporterWithImplicitIrBasedContext`.
Besides, it's better from the architectural point of view:
the users of that diagnostic reporter should not know about its
implementation details.
It affects the `is IrGetField` check in
TypeOperatorLowering.computeNotNullAssertionText, which leads to missing
NPE messages when accessing backing fields of public properties.
#KT-64615
^KT-59938 Fixed
Review: https://jetbrains.team/p/kt/reviews/13760
After this patch:
> The /compiler/testData/diagnostics/tests/multiplatform/topLevelFun/conflictingImplDeclarations.kt test:
Fixed
> The /compiler/testData/diagnostics/tests/multiplatform/headerClass/expectDeclarationWithWeakIncompatibilities.kt test:
Declarations are in the same module. `PACKAGE_OR_CLASSIFIER_REDECLARATION` is reported anyway
> The /compiler/testData/diagnostics/tests/multiplatform/java/varPropertyAgainstJavaGetterAndNonFinalField.kt test:
Expect-actual matcher doesn't match fields in K2 https://youtrack.jetbrains.com/issue/KT-63667 => green code
> The /compiler/testData/diagnostics/tests/multiplatform/java/propertyAgainstJavaPrivateFieldAndPublicMethod.kt test:
Expect-actual matcher doesn't match fields in K2 https://youtrack.jetbrains.com/issue/KT-63667 => green code
> The /compiler/testData/diagnostics/tests/multiplatform/java/implicitJavaActualization_multipleActuals.kt test:
K2 doesn't have implicit Java actualization. And PACKAGE_OR_CLASSIFIER_REDECLARATION is reported anyway
> The /compiler/testData/diagnostics/tests/multiplatform/java/propertyAgainstJavaPublicFieldAndPublicGetter.kt test:
Expect-actual matcher doesn't match fields in K2 https://youtrack.jetbrains.com/issue/KT-63667 => green code
> The /compiler/testData/diagnostics/tests/multiplatform/actualClassifierMustHasTheSameMembersAsNonFinalExpectClassifierChecker/injectContextReceiverOverload.kt test:
Context receivers are not supported in expect-actual matcher. https://youtrack.jetbrains.com/issue/KT-61447
And K2 reports another error right now anyway
This was never semantically correct, but was not important
before KT-63644, as they were immediately dropped after that anyway.
After KT-63644, they were used to compute fake overrides inside them,
which were later matched against actual class, which can
produce false-positive matching errors.
^KT-64835
Sergej Jaskiewicz