In K1, we have the rules like:
- if there's explicit type of a property, then use it
- if there's an initializer, obtain its expression-type
- Otherwise, use getter's return type
The case when getter's type is implicit is handled at
FirDeclarationsResolveTransformer.transformProperty
^KT-56707 Fixed
For example, NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER
It became especially relevant after 0e84bf2053
that together with later commits bring a lot of unnecessary
NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER diagnostic
K1 allows writing access to a public setter of a protected synthetic
property only if the call is inside a subclass. K2 previously allowed
that unconditionally. This changes brings the behavior in line with K1.
^KT-56050 Fixed
Assuming Java class `Super` has a protected `getName` method and a
public `setName` method.
Then, in a subclass of `Super`, FE1.0 allows calls to `setName` via the
property syntax if the property is protected and invisible due to
dispatch receiver is not `this` or `super`.
This directive anyway does not make test run twice with OI, and with NI
It only once run the test with specific settings (// LANGUAGE)
and ignores irrelevant (OI or NI tags)
Currently, FIR reports errors caused by previous resolution failure. For
example with unresolved `a` and `b` in code `a.b`, both `a` and `b` are
highlighted. FE1.0 only highlights `a` since it's the root cause. This
change applies this heuristics when reporting FirDiagnostics.
To do so, inside the root cause of inapplicable candidate errors,
we will record expected/actual type of receiver, if any.
That will help identifying inapplicable calls on nullable receiver.
Update includes:
- Changing syntax of `OI/`NI` tags from `<!NI;TAG!>` to `<!TAG{NI}!>`
- Fix some incorrect directives
- Change order of diagnostics in some places
- Remove ignored diagnostics from FIR test data (previously `DIAGNOSTICS` didn't work)
- Update FIR dumps in some places and add `FIR_IDENTICAL` if needed
- Replace all JAVAC_SKIP with SKIP_JAVAC directive
#KT-36247 fixed
A lot of testdata changed because significanly less (error) descriptors
are created for unresolved types, so diagnostics became different.
During subtyping/incorporation we transform types (e.g. changing nullability,
form of the type) and, basically, we're doing this to some FIXPOINT.
It's important that we use `KotlinType.hashCode()` to compare types, but
for error types hashCode is a hashCode of its supertype and, for example,
`makeNullableAsSpecified` method recreate type every time. So, we continue
to generate new constraints and we'll never stop incorporation algorithm
Kirill Rakhman