| Commit message (Collapse) | Author | Age | Files | Lines |
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Finally my dream of orderliness is within sight.
It's all pretty self-explanatory. More polymorphism, more immutable
identity, more invariants.
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...since it works from source. The parser must be forcibly restrained
from adding a bogus constructor, but other than that it's pretty much
smooth sailing. To give an idea how smooth, if I change scala.Short like so:
trait Bippy extends Any
final class Short extends AnyVal with Bippy
Then it just works, at least until the fiction is revealed.
scala> def f(x: Bippy) = x
f: (x: Bippy)Bippy
scala> f(5)
<console>:9: error: type mismatch;
found : Int(5)
required: Bippy
f(5)
^
scala> f(5: Short)
java.lang.ClassCastException: java.lang.Short cannot be cast to scala.Bippy
at .<init>(<console>:9)
at .<clinit>(<console>)
at .<init>(<console>:11)
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Looks like we will need blood, toil, tears, and sweat. No review.
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No review.
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- Finished giving case classes a ProductN parent, and flipped it on. The
"finish" part involved not breaking existing code where case classes
manually extend the appropriate ProductN. (Like, Tuple 1-22.)
- Generalized most of SyntheticMethods to ease method creation and class
manipulation in general.
- Fixed bugs related to the above, like the fact that this used to be a
compile error:
scala> case class Foo() extends Serializable
<console>:28: error: trait Serializable is inherited twice
case class Foo() extends Serializable
^
It feels like there's a better way to eliminate the duplicate parents,
but after spending a lot of time chasing my tail in that peril-fraught
zone between namer and typer, I don't see an easy path to improve on
it. Closes SI-1799. For that modification to Typers, review by odersky.
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Deprecated the @serializable annotation, introduce a new trait
"scala.Serializable" which has to be extended instead (cross-platform).
Known issues:
- Companion objects of serializable classes (including case classes) are automatically made serializable. However, they don't extend "Serializable" statically because of the known difficulty (should be done before typing, but hard).
- Writing "case class C() extends Serializable" gives "error: trait Serializable is inherited twice"
- Functions are serializable, but don't extend Serializable dynamically (could be fixed by making FunctionN Serializable - shouldn't we?)
Note that @SerialVersionUID continues to be an annotation; it generates
a static field, which is not possible otherwise in scala.
Review by dragos, extempore.
Question to dragos: in JavaPlatform.isMaybeBoxed, why is there a test
for "JavaSerializableClass"? Is that correct?
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scala> def ser(o: AnyRef) = new java.io.ObjectOutputStream(new java.io.ByteArrayOutputStream()).writeObject(o)
ser: (o: AnyRef)Unit
scala> @serializable class Outer {
| case class Inner(x: Int)
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defined class Outer
scala> val o = new Outer
o: Outer = Outer@34469729
scala> ser(new o.Inner(1))
scala> o.Inner // initialize the Inner$module field of o
res1: o.Inner.type = Inner
scala> ser(new o.Inner(1))
java.io.NotSerializableException: Outer$Inner$
review by extempore.
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Half-disabled productElementName until I have time to reimplement it
more to martin's liking. ("Half" because full disabling is not possible
until starr has forgotten about it.) No review.
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trailing spaces in decompiled annotations are trimmed
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case class field names your heart desires. Review by odersky.
scala> case class Foo[T](kilroy: String, burma: List[T], shave:
Seq[Int]) defined class Foo
scala> Foo("was here", List('myanmar), Seq(25, 25))
res0: Foo[Symbol] = Foo(was here,List('myanmar),List(25, 25))
scala> 0 to 2 map (res0 productElementName _)
res1: IndexedSeq[String] = IndexedSeq(kilroy, burma, shave)
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[no content change] Fixed all SVN properties: mimes, EOL, executable. Id
expansion is consistently enabled for Scala/Java/C# sources in 'src/'
and consistently disabled and removed from everywhere else: there should
not be any dead Id tags anymore.
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Implementation and test cases for canEqual method in case classes. Now
the autogenerated equality method inquires with the argument as to
whether other.canEqual(this) before returning true.
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scalap changed to treat named parameters and package objects
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- MethodTypes now have (params: List[Symbol])
- "copy"-methods for case classes
- the "copy" object in the compiler is now called "treeCopy"
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