'Cast can never succeed' diagnostics improved

2013-09-04 13:12:07 +04:00
parent 9f4beece64
commit a28d211442
6 changed files with 250 additions and 9 deletions
@@ -0,0 +1,33 @@
+// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS
+import java.lang.String as JString
+import java.lang.CharSequence as JCS
+
+fun test(
+  s: String,
+  js: JString,
+  cs: CharSequence,
+  jcs: JCS
+) {
+  s as JString
+  s as JCS
+  s as CharSequence
+  s as String
+
+  js as JString
+  js as JCS
+  js as CharSequence
+  js as String
+
+  cs as JString
+  cs as JCS
+  cs as CharSequence
+  cs as String
+
+  jcs as JString
+  jcs as JCS
+  jcs as CharSequence
+  jcs as String
+
+  jcs <!CAST_NEVER_SUCCEEDS!>as<!> Int
+  s <!CAST_NEVER_SUCCEEDS!>as<!> java.lang.Integer
+}
@@ -0,0 +1,21 @@
+// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS -ABSTRACT_MEMBER_NOT_IMPLEMENTED
+import java.lang.CharSequence as JCS
+
+class JSub: JCS
+class Sub: CharSequence
+
+fun test(
+  s: Sub,
+  js: JSub,
+  cs: CharSequence,
+  jcs: JCS
+) {
+  // js as CharSequence // - this case is not supported due to limitation in PlatformToKotlinClassMap
+  js as JCS
+
+  s as CharSequence
+  s as JCS
+
+  js <!CAST_NEVER_SUCCEEDS!>as<!> Sub
+  s <!CAST_NEVER_SUCCEEDS!>as<!> JSub
+}
@@ -0,0 +1,46 @@
+// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS
+trait T1
+trait T2
+trait T3
+open class OC1: T1
+open class OC2: OC1(), T2
+class FC1: OC2(), T3
+trait T4: OC1
+trait T5: T2
+
+fun test<TP1: OC1, TP2: T2, TP3: OC2>(
+    t2: T2,
+    t4: T4,
+    fc1: FC1,
+    oc1: OC1,
+    oc2: OC2,
+    tp1: TP1,
+    tp2: TP2
+) {
+  fc1 as FC1
+  fc1 as OC1
+  fc1 as T1
+  fc1 as TP1
+
+  oc1 as FC1
+  oc1 as OC2
+  oc2 as OC1
+  oc1 as T2
+  oc1 as T1
+  oc1 as TP1
+  oc1 as TP2
+
+  t2 as FC1
+  t2 as OC2
+  t4 as OC1
+  t2 as T2
+  t2 as T5
+  t2 as TP2
+
+  tp1 as FC1
+  tp1 as OC1
+  tp1 as OC2
+  tp2 as T2
+  tp2 as T5
+  tp1 as TP3
+}
@@ -0,0 +1,34 @@
+// !DIAGNOSTICS: -WARNING +CAST_NEVER_SUCCEEDS
+trait Trait1
+trait Trait2
+open class OClass1
+open class OClass2
+class FClass1
+class FClass2
+
+fun test<TP1: OClass1, TP2: OClass2>(
+  t1: Trait1,
+  oc1: OClass1,
+  fc1: FClass1,
+  tp1: TP1
+) {
+  t1 as Trait2
+  t1 as OClass2
+  t1 <!CAST_NEVER_SUCCEEDS!>as<!> FClass2
+  t1 as TP2
+
+  oc1 as Trait2
+  oc1 <!CAST_NEVER_SUCCEEDS!>as<!> OClass2
+  oc1 <!CAST_NEVER_SUCCEEDS!>as<!> FClass2
+  oc1 as TP2
+
+  fc1 <!CAST_NEVER_SUCCEEDS!>as<!> Trait2
+  fc1 <!CAST_NEVER_SUCCEEDS!>as<!> OClass2
+  fc1 <!CAST_NEVER_SUCCEEDS!>as<!> FClass2
+  fc1 as TP2
+
+  tp1 as Trait2
+  tp1 as OClass2
+  tp1 as FClass2
+  tp1 as TP2
+}