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| author | Jason Zaugg <jzaugg@gmail.com> | 2014-02-04 15:55:59 +0100 |
|---|---|---|
| committer | Adriaan Moors <adriaan.moors@typesafe.com> | 2014-02-10 10:58:58 -0800 |
| commit | 4a8edc03653cb0f6b6ed1cdea1779a19df20f8f5 (patch) | |
| tree | a2504af682ddcd74d8050bbf26639b5c58b7c636 /test/files/run | |
| parent | b0f81ed35a45fffb9d0761299013d9d5f324ade6 (diff) | |
| download | scala-4a8edc03653cb0f6b6ed1cdea1779a19df20f8f5.tar.gz scala-4a8edc03653cb0f6b6ed1cdea1779a19df20f8f5.tar.bz2 scala-4a8edc03653cb0f6b6ed1cdea1779a19df20f8f5.zip | |
SI-8129 Make Object#== override Any#==
And the same for !=
If we tried to declare these signatures in non-fictional classes,
we would be chastised about collapsing into the "same signature after
erasure".
This will have an influence of typing, as the typechecking of
arguments is sensitive to overloading: if multiple variants are
feasible, the argument will be typechecked with a wildcard expected
type. So people inspecting the types of the arguments to `==` before
this change might have seen an interesting type for
`if (true) x else y`, but now the `If` will have type `Any`, as we
don't need to calculate the LUB.
I've left a TODO to note that we should really make `Any#{==, !=}`
non-final and include a final override in `AnyVal`. But I don't think
that is particularly urgent.
Diffstat (limited to 'test/files/run')
| -rw-r--r-- | test/files/run/reflection-magicsymbols-invoke.check | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/test/files/run/reflection-magicsymbols-invoke.check b/test/files/run/reflection-magicsymbols-invoke.check index 43116858de..037ba33d21 100644 --- a/test/files/run/reflection-magicsymbols-invoke.check +++ b/test/files/run/reflection-magicsymbols-invoke.check @@ -36,12 +36,10 @@ it's important to print the list of AnyRef's members if some of them change (possibly, adding and/or removing magic symbols), we must update this test constructor Object: ()java.lang.Object method !=: (x$1: Any)Boolean -method !=: (x$1: AnyRef)Boolean method ##: ()Int method $asInstanceOf: [T0]()T0 method $isInstanceOf: [T0]()Boolean method ==: (x$1: Any)Boolean -method ==: (x$1: AnyRef)Boolean method asInstanceOf: [T0]=> T0 method clone: ()java.lang.Object method eq: (x$1: AnyRef)Boolean @@ -84,12 +82,10 @@ if some of them change (possibly, adding and/or removing magic symbols), we must constructor Array: (_length: Int)Array[T] constructor Cloneable: ()java.lang.Cloneable method !=: (x$1: Any)Boolean -method !=: (x$1: AnyRef)Boolean method ##: ()Int method $asInstanceOf: [T0]()T0 method $isInstanceOf: [T0]()Boolean method ==: (x$1: Any)Boolean -method ==: (x$1: AnyRef)Boolean method apply: (i: Int)T method asInstanceOf: [T0]=> T0 method clone: ()Array[T] |