tailrec f(x: () -> T = { y }, y: T = ...) = f()
-- at the call we know that in `x` the observed value of `y` is `null`,
but the constructor should still have a single parameter.
This is needed so that SharedVariablesLowering doesn't get confused, and
SharedVariablesLowering should run after TailrecLowering to properly
optimize tailrec calls in inline lambdas.
Using `kotlin.jvm.functions.Function{n+1}` (via
`getJvmSuspendFunctionClass`) for suspend functions was wrong in the
function reference lowering, because we didn't adapt the parameter types
by transforming the last type to Continuation and adding Object, and
generic signature ended up being incorrect.
Actually there was no need to use `kotlin.jvm.functions.Function{n+1}`
at all. We can just use the built-in
`kotlin.coroutines.SuspendFunction{n}` as a supertype, and it will be
mapped correctly later in codegen. It's not even needed to add the
`kotlin.coroutines.jvm.internal.SuspendFunction` marker manually, since
it's also handled by the codegen (see `IrTypeMapper.mapClassSignature`).
#KT-48732 Fixed
IrLibraryFile, ingerited from Klib code, needed types, bodies, strings,
signatures encoded as byte strings.
When we store this data as class annotations, it is better to store it
as protobuf structs, to avoid re-encoding byte streams twice.
The JVM and newer Android runtimes treats that the same as if
there is no enclosing method. However, older Android runtimes
for Android 5 and 6 throw exceptions on reflective access
and even older runtimes have different behavior. To avoid
those issues, exclude <clinit> from enclosing method attributes.
^ KT-48754 Fixed
In case of `inline fun <T : I<T>> foo(a: Any) = a as T` `T` is being
erased to `I<*>`
Also substitute class upper bound
Fix KT-47342
See KT-31072 for more details
Parameter of a synthetic SAM adapter always has a function type (not a
subtype). Checking for the subtypes broke the case from KT-46908, where
fun interface is itself a subtype of a function type.
#KT-46908 Fixed
In case the cast value is used as a receiver to a private method call,
the cast is actually necessary, see KT-48927. Also, this optimization
has backfired once already (see kt48659_identityEqualsWithCastToAny.kt).
It seems that the best way to optimize these casts is not to generate
them in the first place, and/or use bytecode postprocessing.
Apparently the only kind of casts which need to be eliminated are those
which occur on an inline class to its supertype. Otherwise the
unsafe-coerce intrinsic is inserted at the incorrect place, and several
tests fail (uncastInlineClassToAnyAndBack.kt, genericOverride.kt,
classGenericOverride.kt).
#KT-48927 Fixed
val y = 1
object { val x = y }
->
class XKt$1(`$y`: Int) { val x: Int = `$y` }
Note that `$y` is not stored in a field because it's not used outside
the primary constructor.
One exception is captured inline parameters on the JVM backend, as the
bytecode inliner uses field assignment instructions (setfield) to locate
them; removing the field is thus not possible.
It won't fix KT-48181 completely, but it will allow to create such annotations
if all value arguments are specified.
For the full fix, we need to read default annotation values from classfiles in jar.
#KT-48181 In progress
TL;DR, before we were emitting this JS code:
Object.defineProperty(Base.prototype, 'bar', {
configurable: true,
get: Base.prototype._get_bar__0_k$,
set: Base.prototype._set_bar__a4enbm_k$
});
Now we emit this code instead:
Object.defineProperty(Base.prototype, 'bar', {
configurable: true,
get: function () {
return this._get_bar__0_k$();
},
set: function (value) {
this._set_bar__a4enbm_k$(value);
}
});
This fixes the issue where if we had a @JsExport'ed base class with a
public property overridden in a non-exported derived class, we couldn't
access that property from JS if we were given an instance of
the derived class.
#KT-41912 Fixed
Call mather relies on that BuiltIn package fragment implement specific
interface `BuiltInsPackageFragment` which was missed. Make sure that
BuiltIn module's package fragments implement that interface.
Fix progression optimizer symbols resolve in JS & WASM IR BE
- Replaced UNDEFINED_OFFSET with SYNTHETIC_OFFSET, it's required by
Native backend codegen
- Fixed missing overridden symbols
- Enforce adding fakeoverrides for members not overridden by backend
- Support more points for platform customisation
Ilya Goncharov