MPP-related:
* inherited from interfaces
* inherited body from interface
* default arguments in an interface, implemented by a class delegate
* super call of a method with default argument
Also:
* inheritance from an interface and another interface descendant (KT-21968)
* inheritance through an intermediate interface
This commits adds a new annotation OptionalExpectation to the standard
library, which is experimental. To enable its usage, either pass
'-Xuse-experimental=kotlin.ExperimentalMultiplatform' as a compiler
argument, or '-Xuse-experimental=kotlin.Experimental' and also annotate
each usage with `@UseExperimental(ExperimentalMultiplatform::class)`
#KT-18882 Fixed
'fun CharSequence.iterator()' is an extension function, so one can
overload it with custom implementation.
Other "predefined" containers such as arrays and ranges have member
'fun iterator()', so these containers are not affected.
Check that 'iterator' call corresponds to an extension function
'iterator' defined in package 'kotlin.text' with a receiver of type
'kotlin.CharSequence'.
#KT-24156 Fixed
Previously, assert was just a regular function and its argument used to
be computed on each call (even if assertions are disabled on JVM).
This change adds support for 3 new behaviours of assert:
* always-enable (independently from -ea on JVM)
* always-disable (independently from -ea JVM)
* runtime/jvm (compile the calls like javac generates assert-operator)
* legacy (leave current eager semantics) - this already existed
Default behaviour is legacy for now.
The behavior is changed based on -Xassertions flag.
#KT-7540: Fixed
`countDefaultParameters` uses `hasDefaultValue` to compute the number of
parameters which have default values, which handles actual parameters
(who have default values in the expected declaration) correctly. Thus,
`getRemainingParameters` should use it as well to determine the list of
parameters to be skipped in each generated overload
#KT-23910 Fixed
Introduce COMMON_COROUTINES_TEST directive.
Every test with this directive is run twice: one time with
language version 1.2 and kotlin.coroutines.experimental package
and the other time with language version 1.3 and kotlin.coroutines
package. Each run is a separate method: with suffixes _1_2 and _1_3
respectively.
However, since codegen of release coroutines is not supported in JS
backend, we generate only one method: with suffix _1_2.
#KT-23362
Local lateinit var differs in behavior from a simple local var,
and logic that relies of 'instanceof Local' checks assuming that all
instances of Local are simple local vars can produce faulty code
(as in KT-23260, where a local lateinit var was not explicitly put on
stack when passed as an argument to an inline function, thus causing
null propagation).
#KT-23260 Fixed Target versions 1.2.50
Treat them like lambdas. This means:
1) Like local suspend lambdas, which become "non-suspend" after creating
jvmSuspendView, they do this as well
2) They both are generated with the same codegen.
3) They are treated differently only on front-end side.
#KT-20364: Fixed
Sometimes instead of {POP, GETSTATIC Unit.INSTANCE, ARETURN} sequence
the codegen emits {CHECKCAST Unit, ARETURN} sequence, which breaks tail
call optimization. By replacing CHECKCAST with ARETURN we eliminate
this issue.
#KT-19790: Fixed
Consider call chain `foo.bar.baz()` which has expected type `Int`
Elements `foo` and `bar` doesn't have expected type `Int`,
this is especially important in NI, because we use expected type for
candidate applicability
Before this change, the codegen used to generate beforeInlineMarker
in order to spill variables later. However, since the tailrec call
is replaced with jump, no afterInlineMarker is generated, leading to
inconsistency of these markers. Thus, the spilling fails.
This change disables generating of beforeInlineMarker.
#KT-21521: Fixed
Unlike ordinary lambdas suspend lambdas has create method which invokes
the constructor of the lambda object (continuation).
The inliner could not cope with this.
The previous change fixed the case of suspend lambda without receiver.
This change adds support of suspend lambdas with receiver.
#KT-21605: Fixed
in redundant locals elimination.
Since IgnoringCopySourceInterpreter ignores ALOADs and ASTOREs,
the source instruction of ALOAD K in {ALOAD N, ASTORE K, ALOAD K}
sequence is not ASTORE K. In this case we cannot simply replace K
with N, since there can be multiple {ALOAD N, ASTORE K} sequences
in separate branches. After replacement we get different stack
frames.
This change resolves this.
However, in ReturnUnitMethodTransformer we want to ignore copies
of the same GETSTATIC kotlin/Unit.INSTANCE, since we do not mess
with local variables and just replace ASTORE with ARETURN to help
tail-call optimization.
#KT-23373: Fixed
Use fake continuation instead of ALOAD 0 while inlining
Do not generate state machine for inner lambdas and inner objects,
which capture crossinline suspend lambda.
#KT-19159: Fixed
Otherwise if Char value is a result of some erased generic call,
coercing it to I (primitive int) causes CCE at run-time.
#KT-23104 Fixed Target versions 1.2.40
Note that there are more places where assertions for inline classes should refined:
- lateinit vars
- values that come from Java
- type casts (interfaces to inline class type)
Alexander Udalov