| Commit message (Collapse) | Author | Age | Files | Lines |
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Don't transform patterns during superaccessors: the matcher can't deal
with funny trees. Closes #4062, review by dragos.
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Moved ClassfileAnnotation/StaticAnnotation/Annotation/TypeConstraint
into scala.annotation and enabled the deprecated type aliases in scala.*
to point there. Also enclosed is a new starr to bootstrap. No review.
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Cleaned up and brought up to date the help text for -X and -Y options.
Made some enhancements to PhasesSetting, which are documented if you
run scalac -X or -Y. (Try it!) Disabled some dead settings and renamed
others to reflect their current purpose. No review.
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Introducing scala.system, the product of a whirlwind couple of
hours. More useful stuff than you can shake three sticks at. See the
scala.system package object. It's even documented.
And since it has methods error and exit, proceeded to deprecate the ones
in Predef. No review.
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Starting the mopping up now that names have some more sense of their
place in the universe. Cleaned up some heavy multi-boolean logic. Added
more documentation on the relationships between entities in Symbols and
some other compiler things which often blur together.
Fun fact: the incorrect usage of nme.ScalaObject in Contexts which I
reported when first broaching the namespace subject became a compile
time error during the writing of this patch, because there is no longer
any such thing as nme.ScalaObject. It's a little bit like magic. No
review.
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Parameterizes TraversableFactory.range so it can be used with any
integral type. Closes #3542, no review.
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Overrides immutable.{ Map, Set, Seq } to return self on
the corresponding toMap/toSet/toSeq. Closes #3953, review
by prokopec.
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Generalizes catch blocks to include any PartialFunction[Throwable, T].
Existing catch blocks will compile exactly as before. Anything else
(which mean: the token after CATCH is not a left brace, or it is a left
brace not immediately followed by CASE) is desugared as follows:
try body catch expr
// becomes
try body
catch { case x =>
val catchFn = expr
if (catchFn isDefinedAt x) catchFn(x)
else throw x
}
Review by odersky.
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TermName and TypeName are exposed throughout the compiler based on what
kind of name a given abstraction ought to have. (There remain places
where one needs to create a name without knowing yet what it will be,
and those will always be Names.)
The nme object in the compiler now holds only term names. To reference a
known type name, use tpnme:
nme.List == ("List": TermName)
tpnme.List == ("List": TypeName)
The contents of nme and tpname are defined in traits, many of which
are shared, so if a name should exist only as a Type and not a
Term, it should be defined in CompilerTypeNames, but otherwise in
CompilerTermNames or CompilerCommonNames. This is partially complete but
I'm sure there are still many shared which should pick a side.
Usage of .toTermName and .toTypeName is strongly discouraged. After the
dust has settled, there will be very few places where it will make sense
to hop between namespaces like that.
There are some implicits to smooth everything out, most of which should
be removable eventually.
// these two are in no hurry to go anywhere
String => TermName
String => TypeName
// but not String => Name: def view in the compiler is no longer implicit
// these two are temporary, and can log when they kick off to help us
flush // out remaining issues of "name migration" Name => TermName
Name => TypeName
There is more work to be done before we're properly protected from
naming errors, but I will not allow another eight hour tragedy to befall
lukas or anyone else!
Review by rytz. (Formality.)
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A patch authored by martin to fix one of the big outstanding issues with
-Ycheck. The typer had a vision of the world which fell to pieces if
presented with a tree from after phase constructors. Now it is wiser:
perhaps a bit sadder as well, but every typer must face this day sooner
or later.
Also removed the various passing tests from test/checker-tests, but
still plenty of fascinating failures in there for anyone interested in
helping push to the finish line! No review.
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warnings. Fixed some bugs revealed by said warnings, and made some minor
changes to avoid warnings. (Technically it's not a bug to have unrelated
classes compare as equal, but it so often is a bug that it behooves us
not to do it intentionally so the warnings stand out.) Disabled the most
useful warning for the moment since it'd be wrong with some frequency.
No review.
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Parser relaxation so that one can name the type variables in a
constructor pattern match: this is a prerequisite to realizing the full
potential of gadts. (Nothing new works here however.) No review.
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Found several minor thigns wrong with checkSensible, which tries to
issue warnings for comparisons which will always be true or false. No
review.
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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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It looks like the fix for #2318 was causing problems, so I gave it some
more graceful failure. Leaving #2318 open because the implementation
could still work harder to find the right method. No review.
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The initial implementation of TraversableOnce could not supply concrete
methods or even signatures for map and flatMap because they have
different signatures in Iterator and TraversableLike. But we can take
another approach which works out as nicely:
1) Create implicits which install those methods and flatten on
TraversableOnce instances. 2) Generalize the signatures of flatten
and flatMap to work with A => TraversableOnce[B] instead of A =>
Traversable[B].
And voila, you can mix and match Iterators and Traversables in a for
comprehension, map, flatMap, and flatten, without the tedious process
of sprinkling .iterator or .toList around to appease the compiler. No
review.
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"I invite everyone to change this rule, and observe what breaks!"
This much beloved comment from #1208 has been on my radar for two years.
The worm has turned. Closes #1208. The inferred type of an object is now
Foo.type instead of "object Foo". What once was this:
scala> val x: Map[Int, Singleton] = Map(1 -> None)
<console>:5: error: type mismatch;
found : (Int, object None)
required: (Int, Singleton)
Now exudes a pleasing aura of workingness:
scala> val x: Map[Int, Singleton] = Map(1 -> None)
x: Map[Int,Singleton] = Map(1 -> None)
No review.
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Did some more polishing on the infamous partial function error message.
No review.
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Fleshed out the mock code a little further so it's easy for closures to
become SAMs.
// implicit not necessary, but improves fun factor
scala> implicit def mkUFn(x: AnyRef) = scala.tools.reflect.UniversalFn(x)
mkUFn: (x: AnyRef)scala.tools.reflect.UniversalFn
scala> (() => 5*5*5).as[java.util.concurrent.Callable[Int]]
res1: java.util.concurrent.Callable[Int] = <function1>
scala> res1.call
res2: Int = 125
No review.
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Refactored parallel collections for pluggable task support
implementations.
No review.
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Some work on error messages, somewhat based on ideas in #3092. No
review.
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A new totally safe signal manager, along with all the support code
needed for that. See the classes in scala.tools.reflect.* for
interesting new weapons. Also includes inaugural handy usage:
scala> val x = 10
x: Int = 10
scala> while (true) ()
[ctrl-C]
Execution interrupted by signal.
scala> x
res1: Int = 10
No review, but feedback welcome.
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No review.
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No review.
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Review by Rytz.
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Added varargs annotation.
Review by Rytz.
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Fixes #3647, closes #3647, adds a test case for it, and a missing test
case for #3935.
No review.
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removed duplicated error message for bad compiler options made some
cleanups in detach plugin code
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Some refinement of the error messages when the found and required types
have the same simple names. No longer must we watch people scratch their
heads at such messages as:
found : scala.collection.Set[String]
required: Set[String]
Now so clear you could enjoy a movie through it:
found : scala.collection.Set[String]
required: scala.collection.immutable.Set[String]
No review.
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No review.
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No review.
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Fixes #3989, adding test cases for #3989 and #3996.
No review.
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Changed javasigs test to use new javaccmd system property.
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Moved failing test to pending until I figure out how hudson is running
on chara
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Use partest's java and javac command in the javasigs test. no review.
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Fix InnerClasses attribute: anonymous classes don't have an outer
name. EnclosingMethod is correctly generated. Fixed isAnonymousClass
definition. Updated test that depends on anonymous inner class names.
Closes (again) #3249, references #2749. review by odersky,extempore.
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Half of an implementation of sealedness for java enums. Since it's only
half it's behind -Xexperimental, but it works like a charm for the half
where it works (that being compiling against bytecode.) Need input on
how to approach the source half. References ticket #2442. Review by
moors.
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Some more work on options related to showing compiler structures during
compilation. The pickler knew more than was healthy about things like
compiler settings, so I let the pickler worry about pickling and moved
that logic somewhere closer to the surface. Some convenience oriented
tweaks to command line phase parsing. The end result is as follows (some
output trimmed for brevity.)
// dippy.scala
class Dippy {
def f[T <: Dippy](x: T) = (x, x)
object DingusDippy extends util.Random { }
}
// className@phaseString should be reliably unambiguous
% scalac -Xshow-class Dippy@typer,erasure,jvm dippy.scala
<<-- class Dippy after phase 'typer' -->>
Members (excluding Any/AnyRef unless overridden):
final object DingusDippy extends object Dippy.this.DingusDippy
def f[T <: Dippy](x: T): (T, T)
<<-- class Dippy after phase 'erasure' -->>
Members (excluding Any/AnyRef unless overridden):
private lazy var DingusDippy$module: object Dippy#DingusDippy
lazy val DingusDippy(): object Dippy#DingusDippy
def f(x: Dippy): Tuple2
<<-- class Dippy after phase 'jvm' -->>
Members (excluding Any/AnyRef unless overridden):
protected var bitmap$0: Int
private lazy var DingusDippy$module: object Dippy$DingusDippy
lazy val DingusDippy(): object Dippy$DingusDippy
def f(x: Dippy): Tuple2
No review.
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