[FIR] If callable reference can't be resolved with expected type, try resolving with Any

In positions outside of calls (e.g. property initializers)
we resolve callable references using a synthetic outer call with the
expected type as parameter type.
If this fails, we previously returned an unresolved reference.
After this commit, we additionally try to resolve the callable reference
with expected type Any.
This lets us report more precise diagnostics like type mismatches or
when multiple overloads exist NONE_APPLICABLE.

#KT-55373 Fixed
#KT-55955 Fixed
This commit is contained in:
Kirill Rakhman
2023-07-27 18:32:16 +02:00
committed by Space Team
parent 2c91ae1129
commit ade1354a84
20 changed files with 143 additions and 79 deletions
@@ -13,7 +13,7 @@ FILE: moreSpecificAmbiguousExtensions.kt
}
public final fun testWithExpectedType(): R|kotlin/Unit| {
lval extFun_AB_A: R|IA.(IB) -> kotlin/Unit| = Q|IA|::R|/extFun|
lval extFun_AA_B: R|IA.(IA) -> kotlin/Unit| = Q|IB|::<Unresolved reference: extFun>#
lval extFun_AA_B: R|IA.(IA) -> kotlin/Unit| = Q|IB|::<Ambiguity: extFun, [/extFun, /extFun]>#
lval extFun_BB_A: R|IB.(IB) -> kotlin/Unit| = Q|IA|::R|/extFun|
lval extFun_BA_B: R|IB.(IA) -> kotlin/Unit| = Q|IB|::R|/extFun|
lval extFun_BB_B: R|IB.(IB) -> kotlin/Unit| = Q|IB|::<Ambiguity: extFun, [/extFun, /extFun]>#
@@ -12,7 +12,7 @@ fun test() {
fun testWithExpectedType() {
// NB: should be resolved to kotlin/FunctionX, not kotlin/reflect/FunctionX
val extFun_AB_A: IA.(IB) -> Unit = IA::extFun
val extFun_AA_B: IA.(IA) -> Unit = IB::<!UNRESOLVED_REFERENCE!>extFun<!>
val extFun_AA_B: IA.(IA) -> Unit = IB::<!NONE_APPLICABLE!>extFun<!>
val extFun_BB_A: IB.(IB) -> Unit = IA::extFun
val extFun_BA_B: IB.(IA) -> Unit = IB::extFun
val extFun_BB_B: IB.(IB) -> Unit = IB::<!OVERLOAD_RESOLUTION_AMBIGUITY!>extFun<!>