FIR: Change semantics for combination of safe calls and operators

^KT-41034 Fixed
2022-01-26 18:19:17 +03:00
parent 0dd5042e62
commit 772579143b
34 changed files with 811 additions and 68 deletions
@@ -0,0 +1,58 @@
+// TARGET_BACKEND: JVM_IR
+// IGNORE_BACKEND: JVM_IR
+
+var cnt = 0
+
+class A
+
+var A?.b: A?
+    get() {
+        return this
+    }
+    set(v) {
+        cnt++
+    }
+
+var A?.c: A?
+    get() {
+        return this
+    }
+    set(v) {
+        cnt++
+    }
+
+operator fun A?.get(i: Int): A? = this
+operator fun A?.set(i: Int, v: A?): A? {
+    cnt++
+
+    return this
+}
+
+operator fun A?.inc(): A? {
+    return this
+}
+
+fun test(a: A?) {
+    a?.b++
+    a?.b?.c++
+    a?.b.c++ // ".c" will be called anyway
+
+    a?.b[0]++
+    a?.b?.c[0]++
+    a?.b.c[0]++ // ".c" will be called anyway
+
+    a?.b[0][0]++
+    a?.b?.c[0][0]++
+    a?.b.c[0][0]++ // ".c" will be called anyway
+}
+
+fun box(): String {
+    test(null)
+    if (cnt != 3) return "fail 1: $cnt"
+
+    cnt = 0
+    test(A())
+    if (cnt != 9) return "fail 2: $cnt"
+
+    return "OK"
+}