This change is required to fix stdlib compilation with enabled
linking via signature. All primitive iterators are considered to be
builtins and are created during compile time as deserialized
declarations (at least in K1). But if we meet the definition of some
primitive iterator in code, for example, during stdlib compilation,
we will end up with two different descriptors (deserialized and lazy)
that describe the same entity. Because of that we have conflicts in
symbol table:
* For descriptors, we will end up with multiple IR declarations
that describe the same class, but with different descriptors. With
some magic compilation still works.
* For signatures, we will end up with only one IR declaration in the
table, but it will have wrong deserialized (instead of lazy)
descriptor.
In the end, this change allows us to initialize iterators in advance
with correct descriptor.
#KT-56230
^KT-59665 Fixed
Review: https://jetbrains.team/p/kt/reviews/11039/timeline
It's better to have this logic in common place
(AbstractExpectActualCompatibilityChecker) to avoid missing compilation
errors in the future
This commit fixes:
1. Missing compilation error for actual function with default arguments
for 'actual typealias' KT-59665
2. Missing compilation error for actual function with default arguments
for actual fake-override KT-59665
Alternative solution for KT-59665 is to create a special checker.
"incompatibility" vs "special checker":
Arguments for common incompatibility:
- What if we had a rule that expect and actual default params must
match? If so then it certainly would be an incompatibility.
- Technically, we do the matching of expect and actual params (because
we allow default params in common ancestors of expect and actual
declarations).
- It's hard to check that the actual definition doesn't use default
params because `ExpectedActualResolver.findActualForExpected` filters
out fake-overrides and doesn't return them. It's not clear logic for
me, that I'm afraid to touch.
implicitActualFakeOverride_AbstractMap.kt test breaks if you drop this
weird logic
- WEAK incompatibilities can be considered as "checkers". So it doesn't
matter how it's implemented, as a "incompatibility" or a "checker"
Arguments against common incompatibility:
- Although we match expect and actual declarations to allow default
params in common ancestors of expect and actual declarations, it's
still can be considered that we check that the actual declaration
doesn't have default params. And it doesn't feel right that we check
correctness of the actual declaration in expect-actual matcher.
- ~~It may change the rules of expect actual matching~~ (It's not true,
because ActualFunctionWithDefaultParameters is declared as WEAK
incompatibility)
This change covers the case where some f/o was generated in common module
and it is referenced in platform code. But signature of this f/o may be
different in different modules because of e.g. actualization of value
parameters with actual typealias
^KT-60850 Fixed
Consider the following example from
`extensionLambdasAndArrow.kt`:
```
val x4: String.() -> String = if (true) {
{ str: String -> "this" }
} else {
{ str: String -> "this" }
}
```
Because of
`coerceFirstParameterToExtensionReceiver`
the given lambdas must be of the type
`String.() -> String`, but because of a bug
they are `String.(String) -> String`. At the
same time, during inference their expected
types are, indeed, calculated correctly as
`String.() -> String`.
^KT-59394 Declined
(no more compiler crashes, #potential-feature)
For annotations defined in Java, IrProperties do not contain initializers in backing fields,
as annotation properties are represented as Java methods.
Therefore, it is not possible to use initializer values as default values for constructor parameters.
However, K2 stores default values in annotation's constructor parameters,
so it is possible to fix this issue if they're properly transfered to the IR
and inspected in JvmAnnotationImplementationTransformer
#KT-47702 Fixed
#KT-47702 tag fixed-in-k2
Unfortunately, there are still problems with running JVM backend tests
with JVM target 21 because:
1) The D8 version that we use does not support bytecode version 21, and
updating to a newer version requires to change JVM target of compiler
tests to 11. This will be addressed separately when we enable JVM 21
in tests-different-jdk.
2) Some tests are failing because of KT-60659 and KT-60770:
- builtinStubMethods/bridgesForStubs/emptyStringListAdd.kt
- jdk/stream.kt
- regressions/kt528.kt
#KT-60662 Fixed
Bytecode inliner boxes primitive types in class literals of reified type
arguments. This is by design, and we should backport this behaviour to
IR inliner.
^KT-60144: Fixed
By ignoring type parameters. Since type parameters in annotations are a
very limited feature, their sole use is to be able to specify them as
KClass argument: annotation class Foo<T: Any>(val bar: KClass<T>).
Since we can encounter type param only as a KClass type argument (and
never as a property type), simple approach of ignoring them works fine.
In that case, since we simply copy property types to synthetic
implementation class, its properties in IR start look like this:
annotation class FooImpl(override val bar: KClass<T of Foo>). This IR
seems to be not completely correct, since FooImpl.bar type contains T of
Foo param, which is out of its scope. However, so far I didn't
encounter any problems with this during testing and after MR discussion
this approach has been considered possible.
#KT-59558 Fixed
#KT-59036 Fixed
the script declarations are considered public, at least because they
can be reused from another script then used with the `importedScripts`
configuration property. It also improves the compatibility with K1
scripting.
These intrinsics are equivalent to KMutableProperty0.get/set invocation and used internally to optimize allocation of a property reference.
Merge-request: KT-MR-11233
Merged-by: Maria Sokolova <maria.sokolova@jetbrains.com>
Implementation is very similar to the `enumValues` intrinsic.
Java enums and old (pre-1.9) Kotlin enums will be supported in a
subsequent commit.
#KT-59710
Invocation of atomic intrinsics is only allowed on property references that are known at compile time. This commit makes it possible to also invoke intrinsics on a constant property reference getter passed as an argument.
See KT-58359
Co-authored-by: Pavel Kunyavskiy <Pavel.Kunyavskiy@jetbrains.com>
Merge-request: KT-MR-10413
Merged-by: Maria Sokolova <maria.sokolova@jetbrains.com>
These tests were initially testing that $EntriesMappings classes were
correctly generated, but started to check something else once the
language feature EnumEntries was enabled by default.
In early prototypes of interpreter, it was easier to assume that
all classes from Java can be interpreted and fix something if not.
Check for Java declaration was done by checking that the package name is
starting with "java". But this is actually wrong and can lead to errors
when some code is declared in "java" something package, but is not from
Java stdlib.
#KT-60467 Fixed
Ivan Kylchik