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[FIR] Add SAFE_CALLABLE_REFERENCE_CALL

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^KT-59835
This commit is contained in:
Nikolay Lunyak
2024-01-22 14:31:09 +02:00
committed by Space Team
parent 4fed4b6640
commit c55a7dd038
13 changed files with 47 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDataClassConverters.kt
+6
View File
@@ -3580,6 +3580,12 @@ internal val KT_DIAGNOSTIC_CONVERTER = KtDiagnosticConverterBuilder.buildConvert
token,
)
}
add(FirErrors.SAFE_CALLABLE_REFERENCE_CALL) { firDiagnostic ->
SafeCallableReferenceCallImpl(
firDiagnostic as KtPsiDiagnostic,
token,
)
}
add(FirErrors.LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL) { firDiagnostic ->
LateinitIntrinsicCallOnNonLiteralImpl(
firDiagnostic as KtPsiDiagnostic,
analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnostics.kt
+4
View File
@@ -2517,6 +2517,10 @@ sealed interface KtFirDiagnostic<PSI : PsiElement> : KtDiagnosticWithPsi<PSI> {
val kind: String
}
interface SafeCallableReferenceCall : KtFirDiagnostic<KtExpression> {
override val diagnosticClass get() = SafeCallableReferenceCall::class
}
interface LateinitIntrinsicCallOnNonLiteral : KtFirDiagnostic<PsiElement> {
override val diagnosticClass get() = LateinitIntrinsicCallOnNonLiteral::class
}
analysis/analysis-api-fir/src/org/jetbrains/kotlin/analysis/api/fir/diagnostics/KtFirDiagnosticsImpl.kt
+5
View File
@@ -3029,6 +3029,11 @@ internal class ExplicitTypeArgumentsInPropertyAccessImpl(
token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtExpression>(firDiagnostic, token), KtFirDiagnostic.ExplicitTypeArgumentsInPropertyAccess
internal class SafeCallableReferenceCallImpl(
firDiagnostic: KtPsiDiagnostic,
token: KtLifetimeToken,
) : KtAbstractFirDiagnostic<KtExpression>(firDiagnostic, token), KtFirDiagnostic.SafeCallableReferenceCall
internal class LateinitIntrinsicCallOnNonLiteralImpl(
firDiagnostic: KtPsiDiagnostic,
token: KtLifetimeToken,
compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics/FirDiagnosticsList.kt
+1
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@@ -1232,6 +1232,7 @@ object DIAGNOSTICS_LIST : DiagnosticList("FirErrors") {
val EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS by error<KtExpression>(PositioningStrategy.REFERENCED_NAME_BY_QUALIFIED) {
parameter<String>("kind")
}
val SAFE_CALLABLE_REFERENCE_CALL by error<KtExpression>()
val LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL by error<PsiElement>()
val LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT by error<PsiElement>()
compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrors.kt
+1
View File
@@ -646,6 +646,7 @@ object FirErrors {
val LOCAL_VARIABLE_WITH_TYPE_PARAMETERS_WARNING: KtDiagnosticFactory0 by warning0<KtProperty>(SourceElementPositioningStrategies.TYPE_PARAMETERS_LIST)
val LOCAL_VARIABLE_WITH_TYPE_PARAMETERS: KtDiagnosticFactory0 by error0<KtProperty>(SourceElementPositioningStrategies.TYPE_PARAMETERS_LIST)
val EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS: KtDiagnosticFactory1<String> by error1<KtExpression, String>(SourceElementPositioningStrategies.REFERENCED_NAME_BY_QUALIFIED)
val SAFE_CALLABLE_REFERENCE_CALL: KtDiagnosticFactory0 by error0<KtExpression>()
val LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL: KtDiagnosticFactory0 by error0<PsiElement>()
val LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT: KtDiagnosticFactory0 by error0<PsiElement>()
val LATEINIT_INTRINSIC_CALL_IN_INLINE_FUNCTION: KtDiagnosticFactory0 by error0<PsiElement>()
compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics/FirNonSuppressibleErrorNames.kt
+1
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@@ -432,6 +432,7 @@ val FIR_NON_SUPPRESSIBLE_ERROR_NAMES: Set<String> = setOf(
"ABSTRACT_PROPERTY_IN_PRIMARY_CONSTRUCTOR_PARAMETERS",
"LOCAL_VARIABLE_WITH_TYPE_PARAMETERS",
"EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS",
"SAFE_CALLABLE_REFERENCE_CALL",
"LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL",
"LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT",
"LATEINIT_INTRINSIC_CALL_IN_INLINE_FUNCTION",
compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers/expression/FirCallableReferenceChecker.kt
+5
View File
@@ -18,6 +18,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors
import org.jetbrains.kotlin.diagnostics.reportOn
import org.jetbrains.kotlin.fir.expressions.FirCallableReferenceAccess
import org.jetbrains.kotlin.fir.expressions.FirQualifiedAccessExpression
import org.jetbrains.kotlin.fir.expressions.FirResolvedQualifier
import org.jetbrains.kotlin.fir.references.resolved
import org.jetbrains.kotlin.fir.symbols.FirBasedSymbol
import org.jetbrains.kotlin.fir.symbols.impl.FirCallableSymbol
@@ -28,6 +29,10 @@ object FirCallableReferenceChecker : FirQualifiedAccessExpressionChecker() {
override fun check(expression: FirQualifiedAccessExpression, context: CheckerContext, reporter: DiagnosticReporter) {
if (expression !is FirCallableReferenceAccess) return
if (expression.hasQuestionMarkAtLHS && expression.explicitReceiver !is FirResolvedQualifier) {
reporter.reportOn(expression.source, FirErrors.SAFE_CALLABLE_REFERENCE_CALL, context)
}
// UNRESOLVED_REFERENCE will be reported separately.
val reference = expression.calleeReference.resolved ?: return
val referredSymbol = reference.resolvedSymbol
compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirErrorsDefaultMessages.kt
+2
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@@ -569,6 +569,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.RETURN_TYPE_MISMA
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.RETURN_TYPE_MISMATCH_BY_DELEGATION
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.RETURN_TYPE_MISMATCH_ON_INHERITANCE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.RETURN_TYPE_MISMATCH_ON_OVERRIDE
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.SAFE_CALLABLE_REFERENCE_CALL
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.SAFE_CALL_WILL_CHANGE_NULLABILITY
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.SEALED_CLASS_CONSTRUCTOR_CALL
import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.SEALED_INHERITOR_IN_DIFFERENT_MODULE
@@ -1980,6 +1981,7 @@ object FirErrorsDefaultMessages : BaseDiagnosticRendererFactory() {
map.put(LOCAL_VARIABLE_WITH_TYPE_PARAMETERS_WARNING, "Type parameters for local variables are deprecated.")
map.put(LOCAL_VARIABLE_WITH_TYPE_PARAMETERS, "Local variables cannot have type parameters.")
map.put(EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS, "{0} access cannot have explicit type arguments.", STRING)
map.put(SAFE_CALLABLE_REFERENCE_CALL, "This syntax is reserved for future releases.")
map.put(LATEINIT_INTRINSIC_CALL_ON_NON_LITERAL, "This declaration can only be called on a property literal (e.g. 'Foo::bar').")
map.put(LATEINIT_INTRINSIC_CALL_ON_NON_LATEINIT, "This declaration can only be called on a reference to a 'lateinit' property.")
compiler/testData/diagnostics/tests/callableReference/bound/reservedExpressionSyntax.fir.kt
Vendored
+3 -3
View File
@@ -19,9 +19,9 @@ class Test {
fun <T> List<T>.testCallable1(): () -> Unit = a::foo
fun <T> List<T>.testCallable1a(): () -> Unit = <!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>a<!><T>::foo
fun <T> List<T>.testCallable2(): () -> Unit = b?::<!UNSAFE_CALL!>foo<!>
fun <T> List<T>.testCallable2(): () -> Unit = <!SAFE_CALLABLE_REFERENCE_CALL!>b?::<!UNSAFE_CALL!>foo<!><!>
fun <T> List<T>.testCallable3(): () -> Unit = <!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><T, Any>::<!UNSAFE_CALL!>foo<!>
fun <T> List<T>.testCallable4(): () -> Unit = <!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><T>?::<!UNSAFE_CALL!>foo<!>
fun <T> List<T>.testCallable4(): () -> Unit = <!SAFE_CALLABLE_REFERENCE_CALL!><!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><T>?::<!UNSAFE_CALL!>foo<!><!>
fun <T> List<T>.testClassLiteral1() = a::class
fun <T> List<T>.testClassLiteral1a() = <!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>a<!><T>::class
@@ -31,5 +31,5 @@ class Test {
fun <T> List<T>.testUnresolved1() = <!UNRESOLVED_REFERENCE!>unresolved<!><T>::foo
fun <T> List<T>.testUnresolved2() = <!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>a<!><<!UNRESOLVED_REFERENCE!>unresolved<!>>::foo
fun <T> List<T>.testUnresolved3() = a<<!SYNTAX!><!>>::foo
fun <T> List<T>.testUnresolved4() = <!UNRESOLVED_REFERENCE!>unresolved<!>?::foo
fun <T> List<T>.testUnresolved4() = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>unresolved<!>?::foo<!>
}
compiler/testData/diagnostics/tests/callableReference/bound/reservedExpressionSyntax2.fir.kt
Vendored
+1 -1
View File
@@ -4,4 +4,4 @@ package test
fun nullableFun(): Int? = null
fun Int.foo() {}
val test1 = nullableFun()?::<!UNSAFE_CALL!>foo<!>
val test1 = <!SAFE_CALLABLE_REFERENCE_CALL!>nullableFun()?::<!UNSAFE_CALL!>foo<!><!>
compiler/testData/diagnostics/tests/callableReference/bound/reservedExpressionSyntax3.fir.kt
Vendored
+2 -2
View File
@@ -24,6 +24,6 @@ class Test {
val test1: () -> Right = a.b.c::foo
val test1a: () -> Right = a.<!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><Int>.c::foo
val test2: () -> Right = a.b.c?::foo
val test2a: () -> Right = a.<!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><Int>.c?::foo
val test2: () -> Right = <!SAFE_CALLABLE_REFERENCE_CALL!>a.b.c?::foo<!>
val test2a: () -> Right = <!SAFE_CALLABLE_REFERENCE_CALL!>a.<!EXPLICIT_TYPE_ARGUMENTS_IN_PROPERTY_ACCESS!>b<!><Int>.c?::foo<!>
}
compiler/testData/diagnostics/tests/callableReference/bound/reservedExpressionSyntax4.fir.kt
Vendored
+2 -2
View File
@@ -55,7 +55,7 @@ fun rain() {
a.b.c::foo
<!EXPRESSION_OF_NULLABLE_TYPE_IN_CLASS_LITERAL_LHS!>a.b.c<!>?::class
a.b.c?::foo
<!SAFE_CALLABLE_REFERENCE_CALL!>a.b.c?::foo<!>
<!EXPRESSION_OF_NULLABLE_TYPE_IN_CLASS_LITERAL_LHS!>a.b<!UNNECESSARY_SAFE_CALL!>?.<!>c<!>::class
a.b<!UNNECESSARY_SAFE_CALL!>?.<!>c::<!UNSAFE_CALL!>foo<!>
@@ -70,5 +70,5 @@ fun rain() {
a.b.maybeC::<!UNSAFE_CALL!>foo<!>
<!EXPRESSION_OF_NULLABLE_TYPE_IN_CLASS_LITERAL_LHS!>a.b.maybeC<!>?::class
a.b.maybeC?::<!UNSAFE_CALL!>foo<!>
<!SAFE_CALLABLE_REFERENCE_CALL!>a.b.maybeC?::<!UNSAFE_CALL!>foo<!><!>
}
compiler/testData/diagnostics/tests/callableReference/withQuestionMarks.fir.kt
Vendored
+14 -14
View File
@@ -4,24 +4,24 @@
fun foo() {}
fun main() {
val x1 = <!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!>
val x2 = <!UNRESOLVED_REFERENCE!>logger<!>?::info?::<!UNRESOLVED_REFERENCE!>print<!>
val x3 = <!UNRESOLVED_REFERENCE!>logger<!>?::info::<!UNRESOLVED_REFERENCE!>print<!>
val x4 = <!UNRESOLVED_REFERENCE!>logger<!>?::info?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x5 = <!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x6 = <!UNRESOLVED_REFERENCE!>logger<!>!!::<!UNRESOLVED_REFERENCE!>info<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x7 = <!UNRESOLVED_REFERENCE!>logger<!>::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x8 = <!UNRESOLVED_REFERENCE!>logger<!>?::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x9 = <!UNRESOLVED_REFERENCE!>logger<!>!!::<!UNRESOLVED_REFERENCE!>info<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x10 = <!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x1 = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x2 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>?::info<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x3 = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>?::info<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x4 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>?::info<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x5 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x6 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>!!::<!UNRESOLVED_REFERENCE!>info<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x7 = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x8 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>?::info<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x9 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>!!::<!UNRESOLVED_REFERENCE!>info<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x10 = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>::info?::<!UNRESOLVED_REFERENCE!>print<!><!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x11 = <!UNRESOLVED_REFERENCE!>logger<!>!!::<!UNRESOLVED_REFERENCE!>info<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x12 = <!UNRESOLVED_REFERENCE!>logger<!>?::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x13 = 42?::<!UNRESOLVED_REFERENCE!>unresolved<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x12 = <!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>?::info<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!><!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>::<!UNRESOLVED_REFERENCE!>print<!>
val x13 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!>42?::<!UNRESOLVED_REFERENCE!>unresolved<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x14 = <!UNRESOLVED_REFERENCE!>logger<!><!SYNTAX!>?!!::info?::print?::print<!>
val x15 = <!UNRESOLVED_REFERENCE!>logger<!>::info<!SYNTAX!>?!!::print?::print<!>
val x16 = <!UNRESOLVED_REFERENCE!>logger<!>!!?::<!UNRESOLVED_REFERENCE!>info<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x17 = <!UNRESOLVED_REFERENCE!>logger<!>::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>?::<!UNRESOLVED_REFERENCE!>print<!>?::<!UNRESOLVED_REFERENCE!>print<!>
val x16 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>!!?::<!UNRESOLVED_REFERENCE!>info<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
val x17 = <!SAFE_CALLABLE_REFERENCE_CALL!><!SAFE_CALLABLE_REFERENCE_CALL!><!UNRESOLVED_REFERENCE!>logger<!>::info<!NOT_NULL_ASSERTION_ON_CALLABLE_REFERENCE!>!!<!>?::<!UNRESOLVED_REFERENCE!>print<!><!>?::<!UNRESOLVED_REFERENCE!>print<!><!>
// It must be OK
val x18 = String?::hashCode <!USELESS_ELVIS!>?: ::foo<!>