Add a new module 'backend.jvm.entrypoint' which depends on psi2ir and
contains code that runs psi2ir + JVM IR backend with serialization
implementations.
Hopefully this will allow to compile these modules in parallel and
reduce the build time.
This PR also updates the min agp version we test with because older agp
versions are using gradle apis which doesn't exist in gradle 6.0+.
GH PR: #4155
From now on sealed declarations get resolved with the help of
FirIdeSealedHierarchyProcessor. This change entails correct IDE side
check for sealed when exhaustiveness.
For a vararg parameter type, there corresponding FIR element has a fake
source of kind ArrayTypeFromVarargParameter. As a result,
`getOrBuildFir` returns the whole `FirValueParameter` for the parameter
type reference. Therefore, we need some special handling for this case
in order to resolve the proper `KtSymbol`.
Compiler check for 'when' exhaustiveness requires that module
descriptors of a sealed class and its inheritors are the same (reference
identity matters). Prior to this commit and under some conditions they
were not. Details follow below.
Resolution related data structures (resolution facades) are organized
into trees (sdks, libs, and modules have their own nodes/facades,
module/class descriptors are stored inside). And the trees themselves
are put into a map associating so called PlatformAnalysisSettings and
GlobalFacades (plays a role of a root). PlatformAnalysisSettings is an
abstraction describing target platform and sdk of a module. The more
combinations exist for a project the more facades are used. Please, see
KotlinCacheService for more details.
So why a module can have multiple ModuleDescriptor-s?
Every tree mentioned above is an isolated resolution environment
containing its own instances of the outer world descriptors. Say, if a
project has modules X, Y, Z and we consider X then all three might have
their own vision of X, i.e. 3 descriptors exist at a time.
What descriptor instance does compiler get?
The path starts when the user opens a file in the editor and
highlighting pass starts (see usages of
ResolutionUtils#analyzeWithAllCompilerChecks). Module descriptor stored
in the resolution tree of the file's module gets injected into the
compiler's context. Starting from this moment compiler sees other
modules through the prism of a single resolution facade (tree).
Descriptors residing outside are alien.
This commit allows IdeSealedClassInheritorsProvider to figure out what
PlatformAnalysisSettings are associated with the resolution facade (read
ModuleDescriptor) seen by the compiler. Later on the same facade is used
to provide correct instances of sealed inheritors back to the compiler.
The main purpose is to show that old frontend and FIR work differently
in the case of the conflicts of local and top level classes/objects
See the tests that marked with // IGNORE_FIR
Corresponding ticket is ^KT-45192
Note that LazyClassMemberScope actually has a separate field for
KotlinTypeRefiner, and it might be actually different from the one in
c.kotlinTypeChecker.
The one in c.kotlinTypeChecker is the refiner of *owner* module, i.e. a
module in which the class has been declared. If we have a class Foo :
Expect in common, then the refiner will be from common, and thus it
won't be able to refine supertypes to their platform-dependent values.
The one passed in constructor is actual refiner of dependant-module.
Say, if we're looking at Foo from the point of view of jvmMain, then
we'll create a (view-dependent) LCMS for that, and it will contain
refiner for jvmMain.
It is important to use proper refiner, otherwise the idea of having
"module-dependent view" breaks, and we might suddenly mismatch some
overrides with expect-classes in their signatures.
^KT-44898 Fixed
Module descriptor names in the form of 'stableName' depend on a build
system. See JvmCodegenUtil#getModuleName(). For JPS we get
<module-name.main> or <module-name.test> whereas for Gradle we get top
level <module-name>.
This commit changes approach: ModuleDescriptor-to-Module conversion is
no longer made by name. ModuleInfo is utilized instead.
^KT-45074 fixed
Ilya Kirillov