Do not report IMPLICIT_CAST_TO_ANY on last statement of lambda with Unit(?) in at least one branch.

2016-02-04 15:57:39 +03:00
parent fa8706b46a
commit e4583fd275
15 changed files with 314 additions and 26 deletions
@@ -0,0 +1,83 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER -UNUSED_VARIABLE
+
+fun println() {}
+fun foo(x: Any) {}
+fun <T> fooGeneric(x: T) {}
+
+fun testResultOfLambda1() =
+        run {
+            when {
+                true -> 42
+                else -> println()
+            }
+        }
+
+fun testResultOfLambda2() =
+        run {
+            when {
+                true -> 42
+                else ->
+                    when {
+                        true -> 42
+                        else -> println()
+                    }
+            }
+        }
+
+fun <!IMPLICIT_NOTHING_RETURN_TYPE!>testReturn1<!>() =
+        run {
+            return when {
+                true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+                else -> <!IMPLICIT_CAST_TO_ANY!>println()<!>
+            }
+        }
+
+fun <!IMPLICIT_NOTHING_RETURN_TYPE!>testReturn2<!>() =
+        run {
+            return when {
+                true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+                else ->
+                    when {
+                        true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+                        else -> <!IMPLICIT_CAST_TO_ANY!>println()<!>
+                    }
+            }
+        }
+
+fun testUsage1() =
+        when {
+            true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+            else -> <!IMPLICIT_CAST_TO_ANY!>println()<!>
+        }
+
+fun testUsage2() =
+        foo(when {
+                true -> 42
+                else -> println()
+            })
+
+fun testUsage2Generic() =
+        fooGeneric(when {
+                       true -> 42
+                       else -> println()
+                   })
+
+val testUsage3 =
+        when {
+            true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+            else -> <!IMPLICIT_CAST_TO_ANY!>println()<!>
+        }
+
+val testUsage4 =
+        when {
+            true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+            true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+            true -> <!IMPLICIT_CAST_TO_ANY!>42<!>
+            else -> <!IMPLICIT_CAST_TO_ANY!>println()<!>
+        }
+
+val testUsage5: Any get() =
+        when {
+            true -> 42
+            else -> println()
+        }