The regression appeared after
b5a8ffaddc
when we started trying both static and member methods until
first success and when there is no successful
we were just leaving the last one (e.g. private member)
But the actual problem is that we were commiting the trace
in case of single (but incorrect) result in resolution mode of
SHAPE_FUNCTION_ARGUMENTS when we couldn't yet choose the
correct static method
Also we shouldn't choose a shape for callable reference
using only the knowledge that result is single:
it may lead to the wrong inference result
(see test with Pattern::compile)
#KT-17597 Fixed
com.typesafe.akka:akka-cluster-sharding_2.12:2.5
akka.cluster.sharding.ClusterSharding has the following methods:
public static ClusterSharding get(ActorSystem var0) {
return ClusterSharding$.MODULE$.get(var0);
}
public static Extension get(ActorSystem var0) {
return ClusterSharding$.MODULE$.get(var0);
}
NB: ClusterSharding <: Extension
None of these methods is synthetic or something, but javac allows
calls like ClusterSharding.get(null) and they get resolved
to the first method returning ClusterSharding
It seems that both javac and IntelliJ resolution algorithms filter out
such clashing declarations choosing the one that has the most
specific return type, the same idea is applied in the change
#KT-17560 Fixed
When resolving a class body for a class without a primary constructor
(e.g., an interface), no checks were performed for redeclarations
in the corresponding class header.
Creating & initializing a lexical scope of an appropriate kind will do it.
Note that since class has no primary constructor, only type parameters
could be redeclared (and that's KT-4960).
Note that there are some other problems, for example:
`val a = if (true) 1 as Number else 2`, here we'll get useless cast
#KT-9551 Fixed
#KT-9645 Fixed
The directive was only used in this test and it had no effect on the
behavior of the test. The test is removed because it's equivalent to
simple.kt in the same directory
Forbid underscore-only (_, __, ___, ...) names as callees and as types.
If CHECK_TYPE directive is on, filter out UNDERSCORE_USAGE_WITHOUT_BACKTICKS messages.
Types of the corresponding parameters (or type parameter bounds, types
in supertypes, etc) are now compatible not only if they're equal, but
also if values of those types are mutually assignable (if "a" is subtype
of "b" and "b" is subtype of "a")
#KT-17005 Fixed
Previously, type substitution, which is critical for matching generic
header/impl members with each other, was only performed when
checkImplementationHasHeaderDeclaration was called for impl class
(areCompatibleClassifiers creates the correct substitutor). This was
done in areCompatibleClassifiers: a substitutor which maps type
parameters of the header class to type parameters of the impl class was
created.
Now we create the same substitutor when
checkImplementationHasHeaderDeclaration is called for an impl member of
an impl class as well, manually.
#KT-15230 Fixed
Currently this is achieved with several hacks:
- Postpone computation of argument type info when there is no candidate resolver. We have to do this, because we don't have expected type and therefore we could write wrong information to trace
- Presume that for annotation calls there is only one candidate resolver and then resolve arguments with expected type (see `getArgumentTypeInfo`), otherwise because of quadratic complexity of the algorithm resolve would be slow
Previously there were three LanguageFeature instances -- Coroutines,
DoNotWarnOnCoroutines and ErrorOnCoroutines -- which were handled very
awkwardly in the compiler and in the IDE to basically support a language
feature with a more complex state: not just enabled/disabled, but also
enabled with warning and enabled with error. Introduce a new enum
LanguageFeature.State for this and allow LanguageVersionSettings to get
the state of any language feature with 'getFeatureSupport'.
One noticeable drawback of this approach is that looking at the API, one
may assume that any language feature can be in one of the four states
(enabled, warning, error, disabled). This is not true however; there's
only one language feature at the moment (coroutines) for which these
intermediate states (warning, error) are handled in any way. This may be
refactored further by abstracting the logic that checks the language
feature availability so that it would work exactly the same for any
feature.
Another issue is that the difference among ENABLED_WITH_ERROR and
DISABLED is not clear. They are left as separate states because at the
moment, different diagnostics are reported in these two cases and
quick-fixes in IDE rely on that
The problem was that when resolving super-calls we used known substitutor
when creating a type alias constructor, thus its original return itself,
while it's expected that it should return the descriptor before substitution
The main idea of the fix that `createIfAvailable` should always return
unsubstituted constructor.
Note that known substitutor for type alias constructor should be based
on abbreviation.
The test change seems to be correct as PROJECTION_IN_IMMEDIATE_ARGUMENT_TO_SUPERTYPE
is already reported.
Beside this, resolution behavior isn't expected to be changed dramatically
Denis Zharkov