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| author | Eugene Burmako <xeno.by@gmail.com> | 2012-07-03 22:39:38 +0200 |
|---|---|---|
| committer | Eugene Burmako <xeno.by@gmail.com> | 2012-07-04 20:47:22 +0400 |
| commit | 0529dd502a45e29aa617986ff9ab29e145d62582 (patch) | |
| tree | 992e898503ee18b2eff4e59c3a345889bac852bf /test/files/run/reflection-equality.check | |
| parent | 1fe5087c8e7713cbb42e1da6c1486de3531dd544 (diff) | |
| download | scala-0529dd502a45e29aa617986ff9ab29e145d62582.tar.gz scala-0529dd502a45e29aa617986ff9ab29e145d62582.tar.bz2 scala-0529dd502a45e29aa617986ff9ab29e145d62582.zip | |
SI-5959 type equality now accounts for mirrors
TypeRef(ThisType(<package1>), sym, args) should always be equal to
TypeRef(ThisType(<package2>), sym, args) regardless of whether
package1 and package2 actually represent the same symbols of not.
This goes for subtyping (<:<) and type equality (=:=).
However regular equality (==) and hashconsing is unaffected
as per http://groups.google.com/group/scala-internals/browse_thread/thread/4bef4e6987bb68fe
This is done to account for the fact that mirrors share normal symbols,
but never share package symbols. Therefore at times it will occur that
the same types loaded by different mirrors appear different because of
the package symbols. More details: https://issues.scala-lang.org/browse/SI-5959.
Diffstat (limited to 'test/files/run/reflection-equality.check')
| -rw-r--r-- | test/files/run/reflection-equality.check | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/test/files/run/reflection-equality.check b/test/files/run/reflection-equality.check new file mode 100644 index 0000000000..feafb58d3b --- /dev/null +++ b/test/files/run/reflection-equality.check @@ -0,0 +1,53 @@ +Type in expressions to have them evaluated.
+Type :help for more information.
+
+scala>
+
+scala> class X {
+ def methodIntIntInt(x: Int, y: Int) = x+y
+}
+defined class X
+
+scala>
+
+scala> import scala.reflect.runtime.universe._
+import scala.reflect.runtime.universe._
+
+scala> import scala.reflect.runtime.{ currentMirror => cm }
+import scala.reflect.runtime.{currentMirror=>cm}
+
+scala> def im: InstanceMirror = cm.reflect(new X)
+im: reflect.runtime.universe.InstanceMirror
+
+scala> val cs: ClassSymbol = im.symbol
+cs: reflect.runtime.universe.ClassSymbol = class X
+
+scala> val ts: Type = cs.typeSignature
+ts: reflect.runtime.universe.Type =
+java.lang.Object {
+ def <init>: <?>
+ def methodIntIntInt: <?>
+}
+
+scala> val ms: MethodSymbol = ts.declaration(newTermName("methodIntIntInt")).asMethodSymbol
+ms: reflect.runtime.universe.MethodSymbol = method methodIntIntInt
+
+scala> val MethodType( _, t1 ) = ms.typeSignature
+t1: reflect.runtime.universe.Type = scala.Int
+
+scala> val t2 = typeOf[scala.Int]
+t2: reflect.runtime.universe.Type = Int
+
+scala> t1 == t2
+res0: Boolean = false
+
+scala> t1 =:= t2
+res1: Boolean = true
+
+scala> t1 <:< t2
+res2: Boolean = true
+
+scala> t2 <:< t1
+res3: Boolean = true
+
+scala>
|