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author | Paul Phillips <paulp@improving.org> | 2011-09-08 18:37:18 +0000 |
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committer | Paul Phillips <paulp@improving.org> | 2011-09-08 18:37:18 +0000 |
commit | f32a32b1b33c9d7ccd62467e3e10cb69930023c8 (patch) | |
tree | 47ca34246fbdd255f2191ced68bd708e609d22d2 /src/compiler/scala/reflect/runtime/Settings.scala | |
parent | 52c1d019d63d2fffadc8f3f159d654187ac61ece (diff) | |
download | scala-f32a32b1b33c9d7ccd62467e3e10cb69930023c8.tar.gz scala-f32a32b1b33c9d7ccd62467e3e10cb69930023c8.tar.bz2 scala-f32a32b1b33c9d7ccd62467e3e10cb69930023c8.zip |
Allow for the overriding of objects.
Various and sundry manipulations to allow for objects to be overridden
when the mood is right. It is not enabled by default.
The major contributor of change turned out to be the decoupling of
the FINAL flag (and the "isFinal" test which examines only that flag)
and the many semantics which were attributed to this interpretation
of finality in different circumstances. Since objects no longer have
the FINAL flag automatically applied (only top-level objects and those
marked final in source code do) we need apply a more nuanced test.
Fortunately there is such a nuanced test: isEffectivelyFinal,
which is always true if the FINAL flag is set but also in various
other circumstances. In almost every case, you should be testing
"isEffectivelyFinal", not "isFinal".
To enable overridable objects, use:
-Yoverride-objects
-Xexperimental // includes the above and others
Remain to be done: working out transition logistics. Most likely this
would involve bumping the scala signature version, and all objects in
versions before that would be assumed final.
Review by moors.
Diffstat (limited to 'src/compiler/scala/reflect/runtime/Settings.scala')
-rw-r--r-- | src/compiler/scala/reflect/runtime/Settings.scala | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/compiler/scala/reflect/runtime/Settings.scala b/src/compiler/scala/reflect/runtime/Settings.scala index 088ea019e2..4bd72ce47b 100644 --- a/src/compiler/scala/reflect/runtime/Settings.scala +++ b/src/compiler/scala/reflect/runtime/Settings.scala @@ -19,6 +19,7 @@ class Settings extends internal.settings.MutableSettings { v = x } + val overrideObjects = new BooleanSetting(false) val debug = new BooleanSetting(false) val YdepMethTpes = new BooleanSetting(false) val Ynotnull = new BooleanSetting(false) @@ -29,4 +30,4 @@ class Settings extends internal.settings.MutableSettings { val printtypes = new BooleanSetting(false) val Yrecursion = new IntSetting(0) val maxClassfileName = new IntSetting(255) -}
\ No newline at end of file +} |