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Compilation of spec-List enters an infinite loop under -optimise,
disabling in the hopes of seeing a new build before I die. I'll put it
back. No review.
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No review.
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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
^ ^
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Traversable --> GenTraversable
^ ^
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Iterable --> GenIterable <-- ParIterable
^ ^ ^
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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.
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As a brief diversion from real work, implemented Damerau–Levenshtein
and ran it on trunk to elicit obvious misspellings. Unfortunately
they're mostly in places like compiler comments which real people never
see, but I fixed them anyway. All those English Lit majors who peruse
our sources are sure to be pleased. No review.
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Fix for the partest task to fail the build when a test fails, and fixes
for 2/3 of the quietly failing tests. I'm not quite sure what to do
about the view ones, it doesn't look like a simple rename is going to
cut it, so: review by odersky.
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specialized implementations.
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(thanks for alerting me, Toni)
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fixed failing testcases due to previous commit (renaming of
BuilderFactory)
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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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