Improve inference on generics for callable references

#KT-10711 Fixed #KT-12802 Fixed #KT-12964 Fixed #KT-15439 Fixed Analyze callable references in `dependent` mode, then complete them with respect to expected types
2017-01-17 02:30:16 +03:00
parent 07bb7ef4d3
commit 2cac6a9e7d
50 changed files with 938 additions and 22 deletions
@@ -0,0 +1,29 @@
+fun baz(i: Int) = i
+fun <T> bar(x: T): T = x
+
+fun nullableFun(): ((Int) -> Int)? = null
+
+fun box(): String {
+    val x1: (Int) -> Int = bar(if (true) ::baz else ::baz)
+    val x2: (Int) -> Int = bar(nullableFun() ?: ::baz)
+    val x3: (Int) -> Int = bar(::baz ?: ::baz)
+
+    val i = 0
+    val x4: (Int) -> Int = bar(when (i) {
+                                   10 -> ::baz
+                                   20 -> ::baz
+                                   else -> ::baz
+                               })
+
+    val x5: (Int) -> Int = bar(::baz!!)
+
+    if (x1(1) != 1) return "fail 1"
+    if (x2(1) != 1) return "fail 2"
+    if (x3(1) != 1) return "fail 3"
+    if (x4(1) != 1) return "fail 4"
+    if (x5(1) != 1) return "fail 5"
+
+    if ((if (true) ::baz else ::baz)(1) != 1) return "fail 6"
+
+    return "OK"
+}