| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
|
| |
- Language imports are preceding other imports
- Deleted empty file: InlineErasure
- Removed some unused private[parallel] methods in
scala/collection/parallel/package.scala
This removes hundreds of warnings when compiling with
"-Xlint -Ywarn-dead-code -Ywarn-unused -Ywarn-unused-import".
|
| |
|
|
|
|
| |
Changed takeRight to have two tighter loops instead of one with a conditional. See about 10% performance improvement.
Other changes were (surprisingly, in some cases) not a win. Overall, IterableLike is pretty well optimized.
|
| |
|
|
|
|
|
|
| |
Reading this doc (having no code) can be ambiguous.
updated scala doc (overloaded sliding method)
Step is a method parameter and must be always given explicit, so info about default value is wrong.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Collections library tidying, part one: scripting.
Everything in scala.collection.scripting is deprecated now, along with the
<< method that is implemented in a few other classes. Scripting does not
seem used at all, and anyone who did can easily write a wrapper that does
the same thing.
Deprecated *Proxy collections.
The only place proxies were used in the library was in swing.ListView, and
that was easy to change to a lazy val.
Proxy itself is used in ScalaNumberProxy and such, so it was left
undeprecated.
Deprecated Synchronized* traits from collections.
Synchronizability does not compose well, and it requires careful examination
of every method (which has not actually been done).
Places where the Scala codebase needs to be fixed (eventually) include:
scala.reflect.internal.util.Statistics$QuantMap
scala.tools.nsc.interactive.Global (several places)
Deprecated LinkedList (including Double- and -Like variants).
Interface is idiosyncratic and dangerously low-level. Although some
low-level functionality of this sort would be useful, this doesn't seem
to be the ideal implementation.
Also deprecated the extractFirst method in Queue as it exposes LinkedList.
Cannot shift internal representations away from LinkedList at this time
because of that method.
Deprecated non-finality of several toX collection methods.
Improved documentation of most toX collection methods to describe what the
expectation is for their behavior. Additionally deprecated overriding of
- toIterator in IterableLike (should always forward to iterator)
- toTraversable in TraversableLike (should always return self)
- toIndexedSeq in immutable.IndexedSeq (should always return self)
- toMap in immutable.Map (should always return self)
- toSet in immutable.Set (should always return self)
Did not do anything with IterableLike.toIterable or Seq/SeqLike.toSeq since
for some odd reason immutable.Range overrides those.
Deprecated Forwarders from collections.
Forwarding, without an automatic mechanism to keep up to date with changes
in the forwarded class, is inherently unreliable. Absent a mechanism to
keep current, they're deprecated. ListBuffer is the only class in the
collections library that uses forwarders, and that functionality can be
rolled into ListBuffer itself.
Deprecating immutable set/map adaptors.
They're a bad idea (barring compiler support) for the same reason that all
the other adaptors are a bad idea: they get out of date and probably have a
variety of performance bugs.
Deprecated inheritance from leaf classes in immutable collections.
Inheriting from leaf-classes in immutable collections is rarely a good idea
since whenever you use any interesting collections method you'll revert to
the original class. Also, the methods are often designed to work with only
particular behavior, and an override would be difficult (at best) to make
work. Fortunately, people seem to have realized this and there are few to
no cases of people extending PagedSeq and TreeSet and the like.
Note that in many cases the classes will become sealed not final.
Deprecated overriding of methods and inheritance from various mutable
collections.
Some mutable collections seem unsuited for overriding since to override
anything interesting you would need vast knowledge of internal data
structures and/or access to private methods. These include
- ArrayBuilder.ofX classes.
- ArrayOps
- Some methods of BitSet (moved others from private to protected final)
- Some methods of HashTable and FlatHashTable
- Some methods of HashMap and HashSet (esp += and -= which just forward)
- Some methods of other maps and sets (LinkedHashX, ListMap, TreeSet)
- PriorityQueue
- UnrolledBuffer
This is a somewhat aggressive deprecation, the theory being better to try it
out now and back off if it's too much than not attempt the change and be
stuck with collections that can neither be safely inherited nor have
implementation details changed.
Note that I have made no changes--in this commit--which would cause
deprecation warnings in any of the Scala projects available on Maven (at
least as gathered by Adriaan). There are deprecation warnings induced
within the library (esp. for classes/traits that should become static) and
the compiler. I have not attempted to fix all the deprecations in the
compiler as some of them touch the IDE API (but these mostly involved
Synchronized which is inherently unsafe, so this should be fixed
eventually in coordination with the IDE code base(s)).
Updated test checks to include new deprecations.
Used a higher level implementation for messages in JavapClass.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Students of Scala's history might recall that at introduction of
parallel collections, GenIterable et al were *not* added; instead
the parallel collections inherited from the existing interfaces.
This of course was an invitation to widespread disaster as any
existing code that foreach-ed over a collection might now experience
unwanted concurrency.
The first attempt to fix this was to add the `.seq` method to
convert a parallel colleciton to a sequential one. This was added
in e579152f732, and call sites in the standard library with
side-effecting foreach calls were changed to use that.
But this was (rightly) deemed inadequate, as we could hardly expect
people to change existing code or remember to do this in new code.
So later, in 3de96153e5b, GenIterable was sprouted, and parallel
collections were re-parented.
This commit removes residual needless calls to .seq when the static
type of the receiver is already a plain Iterable, which are no-ops.
|
| | |
|
| |
|
|
| |
scala> Seq(1,2,3).grouped(2).toList
res1: List[Seq[Int]] = List(List(1, 2), List(3))
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
One last flurry with the broom before I leave you slobs to code
in your own filth. Eliminated all the trailing whitespace I
could manage, with special prejudice reserved for the test cases
which depended on the preservation of trailing whitespace.
Was reminded I cannot figure out how to eliminate the trailing
space on the "scala> " prompt in repl transcripts. At least
reduced the number of such empty prompts by trimming transcript
code on the way in.
Routed ConsoleReporter's "printMessage" through a trailing
whitespace stripping method which might help futureproof
against the future of whitespace diseases. Deleted the up-to-40
lines of trailing whitespace found in various library files.
It seems like only yesterday we performed whitespace surgery
on the whole repo. Clearly it doesn't stick very well. I suggest
it would work better to enforce a few requirements on the way in.
|
| | |
|
| |
|
|
|
|
| |
This reverts commit caf7eb6b56817fd1e1fbc1cf017f30e6f94c6bea.
I don't have a better idea right now than wholesale reversion.
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Some names I missed in 55b609458fd .
How one might know when one is done:
mkdir scratch && cd scratch
mkdir annotation beans collection compat concurrent io \
math parallel ref reflect runtime scala sys testing \
text tools util xml
scalac $(find ../src/library -name '*.scala')
Until recently that would fail with about a billion errors. When it
compiles, that's when you're done. And that's where this commit
takes us, for src/library at least.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
These things are killing me. Constructions like
package scala.foo.bar.baz
import foo.Other
DO NOT WORK in general. Such files are not really in the
"scala" package, because it is not declared
package scala
package foo.bar.baz
And there is a second problem: using a relative path name means
compilation will fail in the presence of a directory of the same
name, e.g.
% mkdir reflect
% scalac src/reflect/scala/reflect/internal/util/Position.scala
src/reflect/scala/reflect/internal/util/Position.scala:9: error:
object ClassTag is not a member of package reflect
import reflect.ClassTag
^
src/reflect/scala/reflect/internal/util/Position.scala:10: error:
object base is not a member of package reflect
import reflect.base.Attachments
^
As a rule, do not use relative package paths unless you have
explicitly imported the path to which you think you are relative.
Better yet, don't use them at all. Unfortunately they mostly work
because scala variously thinks everything scala.* is in the scala
package and/or because you usually aren't bootstrapping and it
falls through to an existing version of the class already on the
classpath.
Making the paths explicit is not a complete solution -
in particular, we remain enormously vulnerable to any directory
or package called "scala" which isn't ours - but it greatly
limts the severity of the problem.
|
| |
|
|
|
|
|
|
|
|
| |
Views have been inheriting the very inefficient isEmpty
from Traversable, and since isEmpty is not specifically
forwarded to the underlying collections, views miss out on all
the important optimizations in those collections which tend to
be implemented via method override. Not to mention, they miss
out on correctness, because calling foreach has a habit of
forcing the first element of the view.
|
| | |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
- Match @param/@tparam names to the actual parameter name
- Use @tparam for type parameters
- Whitespace is required between `*` and `@`
- Fix incorrect references to @define macros.
- Use of monospace `` and {{{}}} (much more needed)
- Remove `@param p1 ...` stubs, which appear in the generated docss.
- But, retainsed `@param p1` stubs, assuming they will be filtered from
the generated docs by SI-5795.
- Avoid use of the shorthand `@param doc for the solitary param`
(which works, but isn't recognized by the code inspection in IntelliJ
I used to sweep through the problems)
The remaining warnings from `ant docs` seem spurious, I suspect they are
an unintended consequence of documenting extension methods.
[scaladoc] /Users/jason/code/scala/src/library/scala/collection/TraversableOnce.scala:181: warning: Variable coll undefined in comment for method reduceOption in class Tuple2Zipped
[scaladoc] def reduceOption[A1 >: A](op: (A1, A1) => A1): Option[A1] = reduceLeftOption(op)
[scaladoc] ^
|
| |
|
|
| |
Now that nothing uses it.
|
| | |
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
| |
Removed the type parameter from sliding, no review.
|
| |
|
|
|
|
|
| |
Removing the code which has been deprecated since 2.8.0. Contributed by
Simon Ochsenreither, although deleting code is such fun one hesitates to
call it a contribution. Still, we will. Closes SI-4860, no review.
|
| |
|
|
|
|
|
| |
Override TraversableLike.toIterator which uses unnecessary toStream.
Fixes SI-4802. Contributed by Yang Zhang.
|
| | |
|
| |
|
|
|
|
| |
Added a bunch of bridges to make ameliorate binary compatibility of new
collections. Review by prokopec. Review by extempore.
|
| |
|
|
|
|
|
|
|
|
| |
One of the blips in the performance charts seems to implicate some
changes I made with slice to reduce the number of implementations and
surface area for inconsistencies and bugs. Altering those changes in a
more performance-mindful way, although I don't see anything here which
is likely to help much. Also fixing some wrong documentation about
copyToArray. No review.
|
| |
|
|
|
|
| |
for the patch, as it's a change I've always wanted. Moving up in the
glamorous world of scala commits! No review.
|
| |
|
|
|
|
|
| |
Also, added some docs variables to Gen* traits that were missing.
No review.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Refactoring the collections api to support differentiation between
referring to a sequential collection and a parallel collection, and to
support referring to both types of collections.
New set of traits Gen* are now superclasses of both their * and Par* subclasses. For example, GenIterable is a superclass of both Iterable and ParIterable. Iterable and ParIterable are not in a subclassing relation. The new class hierarchy is illustrated below (simplified, not all relations and classes are shown):
TraversableOnce --> GenTraversableOnce
^ ^
| |
Traversable --> GenTraversable
^ ^
| |
Iterable --> GenIterable <-- ParIterable
^ ^ ^
| | |
Seq --> GenSeq <-- ParSeq
(the *Like, *View and *ViewLike traits have a similar hierarchy)
General views extract common view functionality from parallel and
sequential collections.
This design also allows for more flexible extensions to the collections
framework. It also allows slowly factoring out common functionality up
into Gen* traits.
From now on, it is possible to write this:
import collection._
val p = parallel.ParSeq(1, 2, 3)
val g: GenSeq[Int] = p // meaning a General Sequence
val s = g.seq // type of s is Seq[Int]
for (elem <- g) {
// do something without guarantees on sequentiality of foreach
// this foreach may be executed in parallel
}
for (elem <- s) {
// do something with a guarantee that foreach is executed in order, sequentially
}
for (elem <- p) {
// do something concurrently, in parallel
}
This also means that some signatures had to be changed. For example,
method `flatMap` now takes `A => GenTraversableOnce[B]`, and `zip` takes
a `GenIterable[B]`.
Also, there are mutable & immutable Gen* trait variants. They have
generic companion functionality.
|
| |
|
|
|
|
|
|
|
|
|
|
| |
Implementing foreach to work in parallel in ParIterableLike.
Doing a bunch of refactoring around in the collection framework to
ensure a parallel foreach is never called with a side-effecting method.
This still leaves other parts of the standard library and the compiler
unguarded.
No review.
|
| |
|
|
|
|
|
|
|
|
|
| |
An overhaul of slice and related implementations (primarily that is
drop and take.) In the course of trying to get it working consistently
(mostly with respect to negative indices, which were dealt with
arbitrarily differently across the 25+ concrete implementations) I fixed
various bugs.
Closes #4288, no review.
|
| | |
|
| |
|
|
|
|
| |
Some accumulated cleanup done while profiling and reducing uses of
length. No review.
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
A selection of collections additions from the lower end of the
controversy scale.
// TraversableOnce
def collectFirst[B](pf: PartialFunction[A, B]): Option[B]
def maxBy[B](f: A => B)(implicit cmp: Ordering[B]): A
def minBy[B](f: A => B)(implicit cmp: Ordering[B]): A
// Iterator
def span(p: A => Boolean): (Iterator[A], Iterator[A])
// Traversable
def inits: Iterator[Repr]
def tails: Iterator[Repr]
def unzip3[A1, A2, A3](implicit asTriple: A => (A1, A2, A3)): (CC[A1], CC[A2], CC[A3])
// Sequences
def permutations: Iterator[Repr]
Review by odersky.
|
| |
|
|
|
|
| |
Some collections overrides for more efficient toSeq and toBuffer where
possible. Closes #2972, review by malayeri.
|
| |
|
|
|
|
|
|
|
|
|
| |
Added parallel mutable hash sets.
Implemented parallel mutable hash set iterators.
Implemented parallel mutable hash set combiners.
Factored out unrolled linked lists into a separate class UnrolledBuffer, added tests.
Added parallel mutable hash set tests, and debugged hashsets.
No review.
|
| | |
|
| | |
|
| |
|
|
|
| |
Removed more than 3400 svn '$Id' keywords and related junk.
|
| | |
|
| | |
|
| | |
|
| |
|
|
|
|
| |
If people think some operations can be more lazy, please provide
patches/do changes. Also brought proxies and forwarders into line.
|
| | |
|
| |
|
|
|
|
| |
Made Iterator consistent with Iterable by adding grouped and sliding to
IterableLike. Closes #2837. Review by community.
|
| | |
|
| |
|
|
|
| |
lost of documentation and some small adjustments to collection classes.
|
| |
|
|
|
|
|
| |
refined doc comments generation; refactored code into new Chars,
DocStrings classes in util. Added some more doc comments to collection
classes.
|
| |
|
|
|
|
| |
new doc comment generation, including some new style doc comments in
collection classes.
|
