DONT_CARE placeholder can be nullable after a substitution

Interpret it as DONT_CARE as well (not as an error type where an error was generated before) #KT-6175 Fixed
2014-11-11 17:45:49 +03:00
parent 8ad017c071
commit 8109b1f997
9 changed files with 250 additions and 4 deletions
@@ -0,0 +1,48 @@
+// !DIAGNOSTICS: -UNUSED_PARAMETER
+
+fun <T, R : Any> foo(body: (R?) -> T): T = fail()
+
+fun test1() {
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!> {
+        true
+    }
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>foo<!> { <!CANNOT_INFER_PARAMETER_TYPE!>x<!> ->
+        true
+    }
+}
+
+
+fun <T, R> bar(body: (R) -> T): T = fail()
+
+fun test2() {
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>bar<!> {
+        true
+    }
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>bar<!> { <!CANNOT_INFER_PARAMETER_TYPE!>x<!> ->
+        true
+    }
+}
+
+fun <T, R> baz(body: (List<R>) -> T): T = fail()
+
+fun test3() {
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>baz<!> {
+        true
+    }
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>baz<!> { <!CANNOT_INFER_PARAMETER_TYPE!>x<!> ->
+        true
+    }
+}
+
+fun <T, R : Any> brr(body: (List<R?>) -> T): T = fail()
+
+fun test4() {
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>brr<!> {
+        true
+    }
+    <!TYPE_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>brr<!> { <!CANNOT_INFER_PARAMETER_TYPE!>x<!> ->
+        true
+    }
+}
+
+fun fail() = throw Exception()