Extract Function: Skip callable reference selectors

#KT-13218 Fixed

ChangeLog.md

@@ -14,6 +14,7 @@
 ###### Issues fixed
 - [`KT-13383`](https://youtrack.jetbrains.com/issue/KT-13383), [`KT-13379`](https://youtrack.jetbrains.com/issue/KT-13379) Override/Implement Members: Do not make return type non-nullable if base return type is explicitly nullable
 - [`KT-13244`](https://youtrack.jetbrains.com/issue/KT-13244) Override/Implement Members: Do not expand type aliases in the generated members
+- [`KT-13218`](https://youtrack.jetbrains.com/issue/KT-13218) Extract Function: Fix AssertionError on callable references
 
 ## 1.1-M01 (EAP-1)
 

idea/src/org/jetbrains/kotlin/idea/refactoring/introduce/extractionEngine/ExtractionData.kt

@@ -220,6 +220,7 @@ data class ExtractionData(
                 if (shouldSkipPrimaryReceiver && !(originalResolveResult.resolvedCall?.hasBothReceivers() ?: false)) continue
             }
             else {
+                if (newRef.getParentOfTypeAndBranch<KtCallableReferenceExpression> { callableReference } != null) continue
                 smartCast = originalContext[BindingContext.SMARTCAST, originalResolveResult.originalRefExpr]
                 possibleTypes = getPossibleTypes(originalResolveResult.originalRefExpr, originalResolveResult.resolvedCall, originalContext)
                 shouldSkipPrimaryReceiver = false

idea/testData/refactoring/extractFunction/basic/callableReferenceSelector.kt

@@ -0,0 +1,13 @@
+// WITH_RUNTIME
+// PARAM_DESCRIPTOR: value-parameter arg: kotlin.String defined in Foo.Companion.bar
+// PARAM_TYPES: kotlin.String
+
+class Foo {
+    var arguments: Map<String, String>? = null
+
+    companion object {
+        fun bar(arg: String) = Foo().apply {
+            arguments = <selection>mapOf(Foo::arguments.name to arg)</selection>
+        }
+    }
+}

idea/testData/refactoring/extractFunction/basic/callableReferenceSelector.kt.after

@@ -0,0 +1,15 @@
+// WITH_RUNTIME
+// PARAM_DESCRIPTOR: value-parameter arg: kotlin.String defined in Foo.Companion.bar
+// PARAM_TYPES: kotlin.String
+
+class Foo {
+    var arguments: Map<String, String>? = null
+
+    companion object {
+        fun bar(arg: String) = Foo().apply {
+            arguments = map(arg)
+        }
+
+        private fun map(arg: String) = mapOf(Foo::arguments.name to arg)
+    }
+}

idea/tests/org/jetbrains/kotlin/idea/refactoring/introduce/ExtractionTestGenerated.java

@@ -831,6 +831,12 @@ public class ExtractionTestGenerated extends AbstractExtractionTest {
                 doExtractFunctionTest(fileName);
             }
 
+            @TestMetadata("callableReferenceSelector.kt")
+            public void testCallableReferenceSelector() throws Exception {
+                String fileName = KotlinTestUtils.navigationMetadata("idea/testData/refactoring/extractFunction/basic/callableReferenceSelector.kt");
+                doExtractFunctionTest(fileName);
+            }
+
             @TestMetadata("calleeExpression.kt")
             public void testCalleeExpression() throws Exception {
                 String fileName = KotlinTestUtils.navigationMetadata("idea/testData/refactoring/extractFunction/basic/calleeExpression.kt");