We have `BackendKinds.IrBackend` for IR emitted by the frontend.
We need a different backend kind for IR deserialized from klibs.
We cannot use `BackendKinds.IrBackend` for that purpose, because we
cannot have two different `IrBackendInput` subclasses with the same
kind.
We need a different `IrBackendInput` subclass for deserialized IR
because the `IrBackendInput` for frontend-emitted IR contains some
properties like `sourceFiles` which don't make sense for
deserialized IR.
Since we now have two backend kinds for IR artifacts, we need to make
certain functions and classes in the test infrastructure generic
over backend kinds.
Note: the JsIrDeserializedFromKlibBackendInput class is not used
anywhere yet. We will use it in the coming commits.
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
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
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
This is important for IR lowerings like PolymorphicSignatureLowering
which are very sensitive about the correct types of expressions and
placement of coercions to Unit (KT-59218).
A boolean parameter to `insertImplicitCasts` is not the best solution to
ensure that coercion to Unit is added. The best solution would be to fix
the TODO and generate coercion to the block's type for the last
statement. But that will affect many other places and will need to be
done separately => KT-59781.
Code in IrInterpreter is uncommented to fix the FIR test
`compiler/testData/ir/interpreter/exceptions/tryFinally.kt`; otherwise
evaluation of the function `returnTryFinally` there crashes with
"NoSuchElementException: ArrayDeque is empty". No idea why this test
didn't fail for K1 though, since the created IR is exactly the same.
For some unknown reason this breaks WASM backend with K2, but not with
K1 => KT-59800.
This aligns the behavior with K1 and fixes an issue when the default
value was deserialized as FirExpressionStub leading to an exception
in FIR2IR when trying to convert it to an IR expression.
#KT-60120 Fixed
#KT-59610 Fixed
Previously application of plugins was part of fir2ir conversion and
ir actualization was the responsibility of each specific IR backend
facade. Now (after moving IR extensions after IR actualization) those
actions are extracted into separate facade for two purposes:
1. Avoid code duplication in backend facades
2. Step with this facade goes exactly after fir2ir conversion before
irHandlersStep, which allows IR handlers to observe IR which was
actualized and modified by extensions, which is quite useful
^KT-56173
Sergej Jaskiewicz