Report diagnostic on virtual tailrec function

#KT-18541 Fixed
2019-10-15 09:07:54 +02:00
parent 8305baa5fe
commit adae629258
14 changed files with 671 additions and 8 deletions
@@ -0,0 +1,170 @@
+//!LANGUAGE: +ProhibitTailrecOnVirtualMember
+
+open class A {
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec open fun foo(x: Int)<!> {
+        foo(x)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>internal tailrec open fun bar(y: Int)<!> {
+        bar(y)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>protected tailrec open fun baz(y: Int)<!> {
+        baz(y)
+    }
+
+    private tailrec fun boo(y: Int) {
+        boo(y)
+    }
+
+    internal tailrec fun baa(y: Int) {
+        baa(y)
+    }
+}
+
+open class B : A() {
+    final tailrec override fun foo(x: Int) {
+        foo(x)
+    }
+
+    final tailrec override fun bar(y: Int) {
+        bar(y)
+    }
+
+    final tailrec override fun baz(y: Int) {
+        baz(y)
+    }
+}
+
+
+open class C : A() {
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun foo(x: Int)<!> {
+        foo(x)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun bar(y: Int)<!> {
+        bar(y)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun baz(y: Int)<!> {
+        baz(y)
+    }
+}
+
+object D : A() {
+    tailrec override fun foo(x: Int) {
+        foo(x)
+    }
+
+    tailrec override fun bar(y: Int) {
+        bar(y - 1)
+    }
+
+    tailrec override fun baz(y: Int) {
+        baz(y)
+    }
+}
+
+sealed class E : A() {
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun foo(x: Int)<!> {
+        foo(x)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun bar(y: Int)<!> {
+        bar(y)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec override fun baz(y: Int)<!> {
+        baz(y)
+    }
+
+    class E1 : E() {
+        tailrec override fun foo(x: Int) {
+            foo(x)
+        }
+
+        tailrec override fun bar(y: Int) {
+            bar(y)
+        }
+
+        tailrec override fun baz(y: Int) {
+            baz(y)
+        }
+    }
+}
+
+enum class F {
+    F0,
+    F1() {
+        tailrec override fun foo(x: Int) {
+            foo(x)
+        }
+
+        tailrec override fun bar(y: Int) {
+            bar(y)
+        }
+
+        tailrec override fun baz(y: Int) {
+            baz(y)
+        }
+    };
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec open fun foo(x: Int)<!> {
+        foo(x)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>internal tailrec open fun bar(y: Int)<!> {
+        bar(y)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>protected tailrec open fun baz(y: Int)<!> {
+        baz(y)
+    }
+
+    private tailrec fun boo(y: Int) {
+        boo(y)
+    }
+
+    internal tailrec fun baa(y: Int) {
+        baa(y)
+    }
+}
+
+enum class G {
+
+    G1;
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>tailrec open fun foo(x: Int)<!> {
+        foo(x)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>internal tailrec open fun bar(y: Int)<!> {
+        bar(y)
+    }
+
+    <!TAILREC_ON_VIRTUAL_MEMBER_ERROR!>protected tailrec open fun baz(y: Int)<!> {
+        baz(y)
+    }
+
+    private tailrec fun boo(y: Int) {
+        boo(y)
+    }
+
+    internal tailrec fun baa(y: Int) {
+        baa(y)
+    }
+}
+
+val z = object : A() {
+    tailrec override fun foo(x: Int) {
+        foo(x)
+    }
+
+    tailrec override fun bar(y: Int) {
+        bar(y)
+    }
+
+    tailrec override fun baz(y: Int) {
+        baz(y)
+    }
+}