A full mangled name of a declaration is a mangled name that includes
the mangled names of all the declaration's parents.
We don't use full mangled names for building `IdSignature`s. We use them
in two places:
- Generating stable names for JavaScript functions in Kotlin/JS
(see `NameTables.kt`)
- Generating names for LLVM symbols from lowered IR functions in
Kotlin/Native (see `BinaryInterface.kt`)
In both of these places we run the IR mangler, hence we don't need this
functionality in other manglers.
Now there is separate class encapsulating logic about how to build
fakeOverrides and one encapsulating logic of which classes
do need building fake overrides.
This also allows to untie strange inheritance dependencies.
^KT-61934
1. Leaving no unbound symbols in the IR tree, KT-54491:
- All unbound symbols are bound to synthetic stub declarations
- Improved detection of the root cause for every partially linked classifier
- Improved error messages
2. Visibility valiation, KT-54469
3. Always check deserialized symbols:
If the deserialized symbol mismatches the symbol kind at the call site in the deserializer then generate and reference another symbol with the same signature. In case PL is off, just throw IrSymbolTypeMismatchException.
4. Handle class inheritance violation:
- Detect illegal inheritance (ex: inheriting from a final class)
- Detect invalid constructor delegation (ex: delegating to another class than the direct superclass)
- Simplification: Reduce the number of PartialLinkageCase subclasses
- Reworked error message generation to have shorter and clearer messages
5. Handle class transformations and all known side-effects, examples:
- nested <-> inner
- class <-> enum/object
- adding/removing subclasses of sealed class
- adding/removing enum entries
6. Check direct instantiation of abstract class.
Such instantiation could be possible if a class was non-abstract in the previous version of a library.
7. Handle unlinked annotations on declarations.
Such annotations are removed from the IR. The appropriate compiler error message is produced for every individual case.
8. Handle value argument count mismatch at call sites
9. Handle calling suspend function from non-suspend context.
This could happen if a suspen function was non-suspend in the previous version of a library.
10. Handle overriding inline callables.
Only the leaf final callable can be marked with `inline`.
11. Detect illegal non-local returns from noinline/crossinline lambdas.
Basically, some package names were Native-specific, whilst the packages
themselves were not Native-specific at all. This was already reflected
in the directory layout, but not in the package names.
This is fixed here.
NFC, just an automatic rename of packages with fixes of imports.
- Support partial linkage for declarations from inline functions that are lazily deserialized from a KLIB with static cache
- Linker API: Split IrModuleDeserializer.deserializeIrSymbol() into deserializeIrSymbolOrFail() and tryDeserializeIrSymbol()
- Linker API: Refactor KotlinIrLinker.handleSignatureIdNotFoundInModuleWithDependencies() to deserializeOrReturnUnboundIrSymbolIfPartialLinkageEnabled()
^KT-52478
Doing so speeds up psi2ir ~2 times, and thus improves total compiler
performance by about 6-8%.
Unless JVM IR is in the mode where linking via signatures is the only
way (-Xserialize-ir, -Xklib), signatures are actually not needed at all,
SymbolTable can use the frontend representation (descriptors for FE1.0,
and hopefully FIR elements for K2) as hash table keys. The only catch is
that since other backends still need to work with signatures, all the
common IR utilities, such as irTypePredicates.kt, need to work correctly
for IR elements both with signatures and without.
Also, introduce a fallback compiler flag -Xlink-via-signatures, in case
something goes wrong, to be able to troubleshoot and workaround any
issues.
#KT-48233
Cases that necessitate the return type hack (see KT-46042) always
involve exactly two methods, exactly one of which is a fake override. It
is sufficient to mark one of them.
Instead of a Boolean flag -Xserialize-ir, use modes: none,inline,all.
In "inline" mode, only information needed to deserialize bodies of inline
functions is serialized.
In the "all" mode, all declarations are serialized completely.
Collecting all outer classes into a hash set and looking up classifiers
in that set for each type of each fake override is noticeably slow.
Instead, check that function types reference any type parameter whose
container is a class; if the function is not local, it means such type
parameter belongs to one of the outer classes.
#KT-42020
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.
Sergej Jaskiewicz