diff --git a/compiler/fir/analysis-tests/testData/resolveWithStdlib/contracts/fromSource/good/returnsImplies/conditionLogic.fir.txt b/compiler/fir/analysis-tests/testData/resolveWithStdlib/contracts/fromSource/good/returnsImplies/conditionLogic.fir.txt
index eac7a472ce7..3e45ef0de81 100644
--- a/compiler/fir/analysis-tests/testData/resolveWithStdlib/contracts/fromSource/good/returnsImplies/conditionLogic.fir.txt
+++ b/compiler/fir/analysis-tests/testData/resolveWithStdlib/contracts/fromSource/good/returnsImplies/conditionLogic.fir.txt
@@ -11,6 +11,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test2(x: R|kotlin/String?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(NOT_NULL) -> x is kotlin/String && x != null
         >
      {
         [StubStatement]
@@ -46,6 +47,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test6(x: R|kotlin/Any?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(TRUE) -> x is kotlin/String? && x != null
         >
      {
         [StubStatement]
@@ -54,6 +56,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test7(x: R|kotlin/Any?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(TRUE) -> x is kotlin/String? && x != null || x is kotlin/Int
         >
      {
         [StubStatement]
@@ -95,6 +98,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test11(x: R|kotlin/Any?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(TRUE) -> x is kotlin/Comparable<*> && x is kotlin/CharSequence
         >
      {
         [StubStatement]
@@ -103,6 +107,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test12(x: R|kotlin/Any?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(TRUE) -> x is kotlin/Comparable<*> && x is kotlin/CharSequence || x is kotlin/Number
         >
      {
         [StubStatement]
@@ -111,6 +116,7 @@ FILE: conditionLogic.kt
     @R|kotlin/OptIn|(vararg(<getClass>(Q|kotlin/contracts/ExperimentalContracts|))) public final fun test13(x: R|kotlin/Any?|): R|kotlin/Any?|
         [R|Contract description]
          <
+            Returns(TRUE) -> (!)x !is kotlin/Comparable<*> || x !is kotlin/CharSequence && (!x is kotlin/Number)
         >
      {
         [StubStatement]
diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/contracts/ConeEffectExtractor.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/contracts/ConeEffectExtractor.kt
index 9ba71745f86..23e5803301a 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/contracts/ConeEffectExtractor.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/contracts/ConeEffectExtractor.kt
@@ -109,6 +109,13 @@ class ConeEffectExtractor(
         return ConeIsNullPredicate(arg, isNegated)
     }
 
+    override fun visitExpressionWithSmartcast(
+        expressionWithSmartcast: FirExpressionWithSmartcast,
+        data: Nothing?
+    ): ConeContractDescriptionElement? {
+        return expressionWithSmartcast.originalExpression.accept(this, data)
+    }
+
     override fun visitQualifiedAccessExpression(
         qualifiedAccessExpression: FirQualifiedAccessExpression,
         data: Nothing?
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/neg/12.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/neg/12.fir.kt
index babfa6740a8..32a63789fe8 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/neg/12.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/neg/12.fir.kt
@@ -31,5 +31,5 @@ fun case_1(value_1: Any?) {
 // TESTCASE NUMBER: 2
 fun case_2(value_1: Any?, value_2: Number, value_3: Any?, value_4: String?) {
     value_1.case_2(value_2, value_3, value_4)
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>toByte<!>())
+    println(value_1.toByte())
 }
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/11.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/11.fir.kt
index 0a357e3fa9f..fca29cd99e1 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/11.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/11.fir.kt
@@ -51,8 +51,8 @@ class case_3 {
     fun case_3(value_1: Any?, value_2: Number?) {
         val o = case_3()
         contracts.case_3(value_1, value_2, o.prop_1, this.prop_1)
-        <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
-        <!AMBIGUITY!>println<!>(this.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+        println(o.prop_1.plus(3))
+        println(this.prop_1.plus(3))
     }
 }
 
@@ -62,8 +62,8 @@ class case_4 {
     fun case_4(value_1: Any?, value_2: Number?) {
         val o = case_4()
         if (contracts.case_4(value_1, value_2, o.prop_1, this.prop_1)) {
-            <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
-            <!AMBIGUITY!>println<!>(this.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+            println(o.prop_1.plus(3))
+            println(this.prop_1.plus(3))
         }
     }
 }
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/13.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/13.fir.kt
index babfa6740a8..32a63789fe8 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/13.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/13.fir.kt
@@ -31,5 +31,5 @@ fun case_1(value_1: Any?) {
 // TESTCASE NUMBER: 2
 fun case_2(value_1: Any?, value_2: Number, value_3: Any?, value_4: String?) {
     value_1.case_2(value_2, value_3, value_4)
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>toByte<!>())
+    println(value_1.toByte())
 }
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/3.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/3.fir.kt
index e67dd1005fc..6fb01fcd8bf 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/3.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/3.fir.kt
@@ -102,9 +102,9 @@ class case_3_class {
     fun case_3(value_1: Any?, value_2: Number?) {
         val o = case_3_class()
         contracts.case_3(value_1, value_2, o.prop_1, this.prop_1)
-        println(value_1.<!INAPPLICABLE_CANDIDATE!>dec<!>())
+        println(value_1.dec())
         println(value_2?.toByte())
-        <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+        println(o.prop_1.plus(3))
     }
 }
 
@@ -154,24 +154,24 @@ class case_6_class {
     fun case_6(value_1: Any?, value_2: Number?) {
         val o = case_6_class()
         if (contracts.case_6_1(value_1, value_2, o.prop_1, this.prop_1)) {
-            println(value_1.<!INAPPLICABLE_CANDIDATE!>dec<!>())
+            println(value_1.dec())
             println(value_2?.toByte())
-            <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+            println(o.prop_1.plus(3))
         }
         if (!contracts.case_6_2(value_1, value_2, o.prop_1, this.prop_1)) {
-            println(value_1.<!INAPPLICABLE_CANDIDATE!>dec<!>())
+            println(value_1.dec())
             println(value_2?.toByte())
-            <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+            println(o.prop_1.plus(3))
         }
         if (contracts.case_6_3(value_1, value_2, o.prop_1, this.prop_1) != null) {
-            println(value_1.<!INAPPLICABLE_CANDIDATE!>dec<!>())
+            println(value_1.dec())
             println(value_2?.toByte())
-            <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+            println(o.prop_1.plus(3))
         }
         if (contracts.case_6_4(value_1, value_2, o.prop_1, this.prop_1) == null) {
-            println(value_1.<!INAPPLICABLE_CANDIDATE!>dec<!>())
+            println(value_1.dec())
             println(value_2?.toByte())
-            <!AMBIGUITY!>println<!>(o.prop_1.<!NONE_APPLICABLE!>plus<!>(3))
+            println(o.prop_1.plus(3))
         }
     }
 }
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/5.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/5.fir.kt
index 22f5efe5c2f..c33ea8bc085 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/5.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/5.fir.kt
@@ -85,41 +85,41 @@ import contracts.*
 // TESTCASE NUMBER: 1
 fun case_1(value_1: Any?) {
     value_1.case_1()
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>length<!>)
+    println(value_1.length)
 }
 
 // TESTCASE NUMBER: 2
 fun case_2(value_1: Number?) {
     value_1.case_2()
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
+    println(value_1.inv())
 }
 
 // TESTCASE NUMBER: 3
 fun case_3(value_1: Any?) {
     value_1.case_3()
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
+    println(value_1.inv())
 }
 
 // TESTCASE NUMBER: 4
 fun case_4(value_1: Any?, value_2: Any?, value_3: Any?) {
-    when { value_1.case_4_1() -> <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>length<!>) }
-    when { !value_2.case_4_2() -> <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>length<!>) }
-    when { value_3.case_4_3() != null -> <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>length<!>) }
-    when { value_3.case_4_4() == null -> <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>length<!>) }
+    when { value_1.case_4_1() -> println(value_1.length) }
+    when { !value_2.case_4_2() -> println(value_2.length) }
+    when { value_3.case_4_3() != null -> println(value_3.length) }
+    when { value_3.case_4_4() == null -> println(value_3.length) }
 }
 
 // TESTCASE NUMBER: 5
 fun case_5(value_1: Number?, value_2: Number?, value_3: Number?) {
-    if (value_1.case_5_1()) <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (!value_2.case_5_2()) <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (value_3.case_5_3() != null) <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (value_3.case_5_4() == null) <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
+    if (value_1.case_5_1()) println(value_1.inv())
+    if (!value_2.case_5_2()) println(value_2.inv())
+    if (value_3.case_5_3() != null) println(value_3.inv())
+    if (value_3.case_5_4() == null) println(value_3.inv())
 }
 
 // TESTCASE NUMBER: 6
 fun case_6(value_1: Any?, value_2: Any?, value_3: Any?) {
-    if (value_1.case_6_1()) <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (!value_2.case_6_2()) <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (value_3.case_6_3() != null) <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
-    if (value_3.case_6_4() == null) <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
+    if (value_1.case_6_1()) println(value_1.inv())
+    if (!value_2.case_6_2()) println(value_2.inv())
+    if (value_3.case_6_3() != null) println(value_3.inv())
+    if (value_3.case_6_4() == null) println(value_3.inv())
 }
diff --git a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/6.fir.kt b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/6.fir.kt
index e34ca6410b2..3a15f23cfe1 100644
--- a/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/6.fir.kt
+++ b/compiler/tests-spec/testData/diagnostics/notLinked/contracts/analysis/smartcasts/pos/6.fir.kt
@@ -109,56 +109,56 @@ import contracts.*
 // TESTCASE NUMBER: 1
 fun case_1(value_1: Any?, value_2: Int?) {
     value_1.case_1(value_2)
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>length<!>)
-    println(value_2<!UNSAFE_CALL!>.<!>inv())
+    println(value_1.length)
+    println(value_2.inv())
 }
 
 // TESTCASE NUMBER: 2
 fun case_2(value_1: Number?, value_2: Any?) {
     value_1.case_2(value_2)
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-    <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>toByte<!>())
+    println(value_1.inv())
+    println(value_2.toByte())
 }
 
 // TESTCASE NUMBER: 3
 fun case_3(value_1: Any?, value_2: String?) {
     value_1.case_3(value_2)
-    <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-    println(value_2<!UNSAFE_CALL!>.<!>length)
+    println(value_1.inv())
+    println(value_2.length)
 }
 
 // TESTCASE NUMBER: 4
 fun case_4(value_1: Any?, value_2: Number, value_3: Any?, value_4: String?) {
     value_1.case_4(value_2, value_3, value_4)
-    <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>inv<!>())
-    <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>toByte<!>())
-    println(value_4<!UNSAFE_CALL!>.<!>length)
+    println(value_2.inv())
+    println(value_3.toByte())
+    println(value_4.length)
 }
 
 // TESTCASE NUMBER: 5
 fun case_5(value_1: Any?, value_2: Int?, value_3: Any?, value_4: Int?, value_5: Any?, value_6: Int?) {
     when {
         value_1.case_5_1(value_2) -> {
-            <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>length<!>)
-            println(value_2<!UNSAFE_CALL!>.<!>inv())
+            println(value_1.length)
+            println(value_2.inv())
         }
     }
     when {
         !value_3.case_5_2(value_4) -> {
-            <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>length<!>)
-            println(value_4<!UNSAFE_CALL!>.<!>inv())
+            println(value_3.length)
+            println(value_4.inv())
         }
     }
     when {
         value_5.case_5_3(value_6) != null -> {
-            <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>length<!>)
-            println(value_6<!UNSAFE_CALL!>.<!>inv())
+            println(value_5.length)
+            println(value_6.inv())
         }
     }
     when {
         value_5.case_5_4(value_6) == null -> {
-            <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>length<!>)
-            println(value_6<!UNSAFE_CALL!>.<!>inv())
+            println(value_5.length)
+            println(value_6.inv())
         }
     }
 }
@@ -166,55 +166,55 @@ fun case_5(value_1: Any?, value_2: Int?, value_3: Any?, value_4: Int?, value_5:
 // TESTCASE NUMBER: 6
 fun case_6(value_1: Number?, value_2: Any?, value_3: Number?, value_4: Any?, value_5: Number?, value_6: Any?) {
     if (value_1.case_6_1(value_2)) {
-        <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-        <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>toByte<!>())
+        println(value_1.inv())
+        println(value_2.toByte())
     }
     if (!value_3.case_6_2(value_4)) {
-        <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
-        <!AMBIGUITY!>println<!>(value_4.<!UNRESOLVED_REFERENCE!>toByte<!>())
+        println(value_3.inv())
+        println(value_4.toByte())
     }
     if (value_5.case_6_3(value_6) != null) {
-        <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>inv<!>())
-        <!AMBIGUITY!>println<!>(value_6.<!UNRESOLVED_REFERENCE!>toByte<!>())
+        println(value_5.inv())
+        println(value_6.toByte())
     }
     if (value_5.case_6_4(value_6) == null) {
-        <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>inv<!>())
-        <!AMBIGUITY!>println<!>(value_6.<!UNRESOLVED_REFERENCE!>toByte<!>())
+        println(value_5.inv())
+        println(value_6.toByte())
     }
 }
 
 // TESTCASE NUMBER: 7
 fun case_7(value_1: Any?, value_2: String?, value_3: Any?, value_4: String?, value_5: Any?, value_6: String?) {
     if (value_1.case_7_1(value_2)) {
-        <!AMBIGUITY!>println<!>(value_1.<!UNRESOLVED_REFERENCE!>inv<!>())
-        println(value_2<!UNSAFE_CALL!>.<!>length)
+        println(value_1.inv())
+        println(value_2.length)
     }
     if (value_3.case_7_2(value_4)) {
-        <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>inv<!>())
-        println(value_4<!UNSAFE_CALL!>.<!>length)
+        println(value_3.inv())
+        println(value_4.length)
     }
     if (value_5.case_7_3(value_6) != null) {
-        <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>inv<!>())
-        println(value_6<!UNSAFE_CALL!>.<!>length)
+        println(value_5.inv())
+        println(value_6.length)
     }
     if (value_5.case_7_4(value_6) == null) {
-        <!AMBIGUITY!>println<!>(value_5.<!UNRESOLVED_REFERENCE!>inv<!>())
-        println(value_6<!UNSAFE_CALL!>.<!>length)
+        println(value_5.inv())
+        println(value_6.length)
     }
 }
 
 // TESTCASE NUMBER: 8
 fun case_8(value_1: Any?, value_2: Number, value_3: Any?, value_4: String?, value_5: Any?, value_6: Number, value_7: Any?, value_8: String?) {
-    when { value_1.case_8_1(value_2, value_3, value_4) -> <!AMBIGUITY!>println<!>(value_2.<!UNRESOLVED_REFERENCE!>inv<!>()) }
-    when { value_1.case_8_1(value_2, value_3, value_4) -> <!AMBIGUITY!>println<!>(value_3.<!UNRESOLVED_REFERENCE!>toByte<!>()) }
-    when { value_1.case_8_1(value_2, value_3, value_4) -> println(value_4<!UNSAFE_CALL!>.<!>length) }
-    when { !value_5.case_8_2(value_6, value_7, value_8) -> <!AMBIGUITY!>println<!>(value_6.<!UNRESOLVED_REFERENCE!>inv<!>()) }
-    when { !value_5.case_8_2(value_6, value_7, value_8) -> <!AMBIGUITY!>println<!>(value_7.<!UNRESOLVED_REFERENCE!>toByte<!>()) }
-    when { !value_5.case_8_2(value_6, value_7, value_8) -> println(value_8<!UNSAFE_CALL!>.<!>length) }
-    when { value_5.case_8_3(value_6, value_7, value_8) != null -> <!AMBIGUITY!>println<!>(value_6.<!UNRESOLVED_REFERENCE!>inv<!>()) }
-    when { value_5.case_8_3(value_6, value_7, value_8) != null -> <!AMBIGUITY!>println<!>(value_7.<!UNRESOLVED_REFERENCE!>toByte<!>()) }
-    when { value_5.case_8_3(value_6, value_7, value_8) != null -> println(value_8<!UNSAFE_CALL!>.<!>length) }
-    when { value_5.case_8_4(value_6, value_7, value_8) == null -> <!AMBIGUITY!>println<!>(value_6.<!UNRESOLVED_REFERENCE!>inv<!>()) }
-    when { value_5.case_8_4(value_6, value_7, value_8) == null -> <!AMBIGUITY!>println<!>(value_7.<!UNRESOLVED_REFERENCE!>toByte<!>()) }
-    when { value_5.case_8_4(value_6, value_7, value_8) == null -> println(value_8<!UNSAFE_CALL!>.<!>length) }
+    when { value_1.case_8_1(value_2, value_3, value_4) -> println(value_2.inv()) }
+    when { value_1.case_8_1(value_2, value_3, value_4) -> println(value_3.toByte()) }
+    when { value_1.case_8_1(value_2, value_3, value_4) -> println(value_4.length) }
+    when { !value_5.case_8_2(value_6, value_7, value_8) -> println(value_6.inv()) }
+    when { !value_5.case_8_2(value_6, value_7, value_8) -> println(value_7.toByte()) }
+    when { !value_5.case_8_2(value_6, value_7, value_8) -> println(value_8.length) }
+    when { value_5.case_8_3(value_6, value_7, value_8) != null -> println(value_6.inv()) }
+    when { value_5.case_8_3(value_6, value_7, value_8) != null -> println(value_7.toByte()) }
+    when { value_5.case_8_3(value_6, value_7, value_8) != null -> println(value_8.length) }
+    when { value_5.case_8_4(value_6, value_7, value_8) == null -> println(value_6.inv()) }
+    when { value_5.case_8_4(value_6, value_7, value_8) == null -> println(value_7.toByte()) }
+    when { value_5.case_8_4(value_6, value_7, value_8) == null -> println(value_8.length) }
 }