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authorPaul Phillips <paulp@improving.org>2012-10-24 13:23:54 -0700
committerPaul Phillips <paulp@improving.org>2012-10-24 13:52:41 -0700
commita7276d5976f57d4f182a55f92693de97acf1de64 (patch)
treed8aef3889d0ae87cc4ea5ae75ed5addd8b34ea86 /test/files/neg/t6534.check
parent2c554249fd8e99286134b217027b6e3cb2c92d77 (diff)
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New take on SI-6534, value classes.
Don't prohibit equals and hashCode in universal traits; instead, always override them in value classes.
Diffstat (limited to 'test/files/neg/t6534.check')
-rw-r--r--test/files/neg/t6534.check14
1 files changed, 14 insertions, 0 deletions
diff --git a/test/files/neg/t6534.check b/test/files/neg/t6534.check
new file mode 100644
index 0000000000..bd7dc4b71c
--- /dev/null
+++ b/test/files/neg/t6534.check
@@ -0,0 +1,14 @@
+t6534.scala:4: warning: Implementation of equals inherited from trait Foo overridden in class Bippy1 to enforce value class semantics
+class Bippy1(val x: Int) extends AnyVal with Foo { } // warn
+ ^
+t6534.scala:5: warning: Implementation of hashCode inherited from trait Ding overridden in class Bippy2 to enforce value class semantics
+class Bippy2(val x: Int) extends AnyVal with Ding { } // warn
+ ^
+t6534.scala:6: error: redefinition of equals method. See SIP-15, criterion 4. is not allowed in value class
+class Bippy3(val x: Int) extends AnyVal { override def equals(x: Any) = false } // error
+ ^
+t6534.scala:7: error: redefinition of hashCode method. See SIP-15, criterion 4. is not allowed in value class
+class Bippy4(val x: Int) extends AnyVal { override def hashCode = -1 } // error
+ ^
+two warnings found
+two errors found