DFA: only stable values or qualified with stable receiver can be bound in x = y #KT-15792 Fixed

2017-01-18 16:11:59 +03:00
parent 905e67e713
commit b7fb45f36e
6 changed files with 78 additions and 1 deletions
@@ -0,0 +1,45 @@
+// KT-15792 and related
+
+fun foo() {
+    var x: String? = ""
+    val y = x
+    x = null
+    if (y != null) {
+        <!DEBUG_INFO_CONSTANT!>x<!><!UNSAFE_CALL!>.<!>hashCode()
+    }
+}
+
+fun foo2() {
+    var x: String? = ""
+    val y = x
+    if (y != null) {
+        x<!UNSAFE_CALL!>.<!>hashCode()
+    }
+}
+
+fun bar(s: String?) {
+    var ss = s
+    val hashCode = ss?.hashCode()
+    ss = null
+    if (hashCode != null) {
+        <!DEBUG_INFO_CONSTANT!>ss<!><!UNSAFE_CALL!>.<!>hashCode()
+    }
+}
+
+fun bar2(s: String?) {
+    var ss = s
+    val hashCode = ss?.hashCode()
+    if (hashCode != null) {
+        ss<!UNSAFE_CALL!>.<!>hashCode()
+    }
+}
+
+class Some(var s: String?)
+
+fun baz(arg: Some?) {
+    val ss = arg?.s
+    if (ss != null) {
+        <!DEBUG_INFO_SMARTCAST!>arg<!>.hashCode()
+        <!SMARTCAST_IMPOSSIBLE!><!DEBUG_INFO_SMARTCAST!>arg<!>.s<!>.hashCode()
+    }
+}