Before 1.4 tailrec function default arguments were evaluated
right-to-left instead of left-to-right. This is controlled
by a compile-time flag. This change adds support for the
right-to-left evaluation order when that flag is not set.
Get rid of "_lv12" in the test name, since it's actually a test on the
modern compiler. Also, avoid the commented "IGNORE_BACKEND: JVM_IR"
directive in another test to make JVM IR test failures more greppable.
Consider `fun <E : I> foo(a: Any?) = a as? E`, where I is an interface.
This check used to fail, because the `a == null` was missing, and
the `isInterface` stdlib method crashes if the first argument
is null. This change adds the null check.
Also this change prettifies the instance check in case of type parameter
left operand.
Since property accessor descriptors (unlike corresponding IR elements)
do not have type parameters, we need to take them from the corresponding
property to ensure the correct IR for delegated property accessors.
Alternatively, we could improve the lookup utilities and their usages to
always find the exact override of a symbol from
Collection/Iterable/CharSequence/etc, but since we need to load the
original symbol anyway in cases when the loop subject's type is a type
parameter, we might as well simplify everything and always reference the
original symbol.
Also improve exception message and removed unused declarations in
IrBackendUtils.kt.
Use the same instances from class declaration instead
Otherwise, primary constructor value parameter types when used
in the class body are considered as different from types
based on the class type parameters
See the test genericConstructors.kt, before this commit
"id" call was reported in inapplicable
For example, synthetic `$annotations` methods for properties were
previously mangled to `$annotations-...`, which breaks annotation
loader, and fails an assert in ClassCodegen.generateMethod.
Normally, the fact that is was Unit was not visible as enum constructors
are lowered to normal class constructors anyway. The exception is when
the arguments are reordered, causing the incorrect return type to leak
into the block that holds temporary variables.
Like the old backend, always leave private @JvmDefault annotated
interface members (properties, methods) on the interface, just like
the old backend. Fix naming, and introduce test to document the naming
scheme.
- introduce a scoped counter instead of a global one for name
generation for accessors. Naive solution not working.
- Introduced hardcoded "jd" suffix for accessors on interfaces, under
the assumption that the only such accessors are due to JvmDefault
and their bridges from `$DefaultImpls`. Removed all associated
templated tests, so the old and IR backend correspond on this matter
again.
- Respecialized writeFlags from regexps to string-equality: we are
going for exact matches now!
- Fixed package calculation in `IrUtils.kt`.
- Accessors for static members must be due to accessing super
classes. Actual super-qualified calls are naturally also accessing
super classes. Hence the `$s+{hashcode(superClassName)}`
suffix. Added test to affirm this naming scheme.
- Field getters/setters for static fields must be companion accessors,
otherwise just labelled as accessors. They are also tagged with `s`
suffix when accessing static fields.
- For naming of accessors to coincide with the old backend, field
renaming to avoid JVM signature clashes must be done _after_
generation of accessors for those fields.
Change the treatment of default implementations on interfaces in JVM
compatibility mode. Previously, the IR backend moved the actual
default implementation to the DefaultImpls class, and then bridged to
it from the interface default. The old backend did the reverse, at the
cost of an additional accessor, in order to gain better binary
compatibility properties. See #2612 for discussion.
The accessor needs to call a specific implementation, so must be
performed through an `invokespecial`. We trick the
SyntheticAccessorLowering into doing this for us, by marking the
bridging call as a super call. We do this in want of an explicit
`invokespecial` Ir Node.
InterfaceDefaultCallsPhase previously assumed the old behaviour of the
IR backend (that calls to default implementations, e.g. `foo$default`
should target `DefaultImpls.foo$default`). But now the bridge to
foo$default resides on `DefaultImpls` already, causing that pass to
create a recursive loop. We cut that loop with a simple check.
Had to edit some bytecodeText tests to account for the fact that JVM_IR
no longer generates explicit initializations for ConstantValue fields,
but NoConstantValueAttributeForNonConstVals is not the default yet.
Before this commit, we had two methods to do generally the same synthetic thing.
It's an attempt to keep only one of them.
Accessor symbols are generated in Java use-site member scopes,
at this place we know better whether we are in Java class or not.
However, we have to do this at every use-site level, which is relatively slow.
Also we could encounter problems when accessor function is overridden in Kotlin,
and accessor symbol can still contain reference to Java accessor.
In case of inline it should be same descriptor (except of fake override), In general case getter could be synthetic accessor and in such case it's not inline
In old BE we generate `create` for this kind of suspend lambdas, which,
like in simple suspend lambdas is responsible for putting arguments
(including extension receiver) to fields.
But, if number of parameters of suspend lambda (including receiver) >= 1,
there is no need to generate `create`, since `create` is called only by
`createCoroutine` and friends from stdlib, and there is no version of
`createCoroutine` for lambdas with multiple parameters.
Thus, in old BE we generate a redundant method, which affects method
count.
In JVM_BE we decided to 'inline' create into `invoke` for suspend lambdas
with multiple parameters.
Fix getting kType metadata in cases when corresponding jsClass value
is passed through temporary variable.
This can happen when jsClass expression is not consided trivial by
local variable optimizer. This happens for object declarations from
different modules, for example kotlin.Unit
If there is an existing method that will have its argument types
remapped to boxed types, make sure to reflect that in the IR so
that code will be generated for a boxed value instead of a
primitive value.
Mads Ager