[Test] Add diagnostic tests for smartcast in K2

List of issues: KT-28806, KT-7186, KT-22997, KT-1982, KT-22996, KT-54443, KT-37308, KT-37115, KT-4113, KT-25747, KT-24779
2023-11-28 16:50:14 +03:00
parent 48072c822b
commit c6b32200df
27 changed files with 3802 additions and 0 deletions
@@ -0,0 +1,55 @@
+// ISSUE: KT-37308
+// WITH_STDLIB
+// DIAGNOSTICS: -ERROR_SUPPRESSION
+import kotlin.contracts.*
+
+@OptIn(ExperimentalContracts::class)
+fun CharSequence?.valueIsNotNull(): Boolean {
+    contract {
+        returns(true) implies (this@valueIsNotNull != null)
+    }
+    return this != null
+}
+@OptIn(ExperimentalContracts::class)
+fun CharSequence?.valueIsNull(): Boolean {
+    contract {
+        returns(false) implies (this@valueIsNull != null)
+    }
+    return this == null
+}
+
+class A {
+    val b: String? = ""
+    val e: C? = C()
+}
+
+class C {
+    val d: String? = ""
+}
+
+fun test1(a: A?) {
+    if (!a?.b.valueIsNull()) {
+        a<!UNSAFE_CALL!>.<!>b<!UNSAFE_CALL!>.<!>length
+    }
+}
+
+fun test2(a: A?) {
+    require(!a?.b.valueIsNull())
+    a<!UNSAFE_CALL!>.<!>b<!UNSAFE_CALL!>.<!>length
+}
+
+fun test3(a: A?) {
+    if(a?.b.valueIsNotNull()){
+        a<!UNSAFE_CALL!>.<!>b<!UNSAFE_CALL!>.<!>length
+    }
+}
+
+fun test4(a :A?) {
+    require(a?.b.valueIsNotNull())
+    a<!UNSAFE_CALL!>.<!>b<!UNSAFE_CALL!>.<!>length
+}
+
+fun test5(a :A?) {
+    require(a?.e?.d.valueIsNotNull())
+    a<!UNSAFE_CALL!>.<!>e<!UNSAFE_CALL!>.<!>d<!UNSAFE_CALL!>.<!>length
+}