| Commit message (Collapse) | Author | Age | Files | Lines |
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Fix 36 typos (d-f)
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Pin to non-crashy redcarpet
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Corral, shade & embed jline.
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As usual, the repl will use whatever jline 2 jar on the classpath,
if there is one. Failing that, there's a fallback and an override.
If instantiating the standard `jline.InteractiveReader` fails,
we fall back to an embedded, shaded, version of jline,
provided by `jline_embedded.InteractiveReader`.
(Assume `import scala.tools.nsc.interpreter._` for this message.)
The instantiation of `InteractiveReader` eagerly exercises jline,
so that a linkage error will result if jline is missing or if the
provided one is not binary compatible.
The property `scala.repl.reader` overrides this behavior, if set to
the FQN of a class that looks like `YourInteractiveReader` below.
```
class YourInteractiveReader(completer: () => Completion) extends InteractiveReader
```
The repl logs which classes it tried to instantiate under `-Ydebug`.
# Changes to source & build
The core of the repl (`src/repl`) no longer depends on jline.
The jline interface is now in `src/repl-jline`.
The embedded jline + our interface to it are generated by the `quick.repl` target.
The build now also enforces that only `src/repl-jline` depends on jline.
The sources in `src/repl` are now sure to be independent of it,
though they do use reflection to instantiate a suitable subclass
of `InteractiveReader`, as explained above.
The `quick.repl` target builds the sources in `src/repl` and `src/repl-jline`,
producing a jar for the `repl-jline` classes, which is then transformed using
jarjar to obtain a shaded copy of the `scala.tools.nsc.interpreter.jline` package.
Jarjar is used to combine the `jline` jar and the `repl-jline` into a new jar,
rewriting package names as follows:
- `org.fusesource` -> `scala.tools.fusesource_embedded`
- `jline` -> `scala.tools.jline_embedded`
- `scala.tools.nsc.interpreter.jline` -> `scala.tools.nsc.interpreter.jline_embedded`
Classes not reachable from `scala.tools.**` are pruned, as well as empty dirs.
The classes in the `repl-jline` jar as well as those in the rewritten one
are copied to the repl's output directory.
PS: The sbt build is not updated, sorry.
PPS: A more recent fork of jarjar: https://github.com/shevek/jarjar.
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Code that depends on jline is now in package `scala.tools.nsc.interpreter.jline`.
To make this possible, remove the `entries` functionality from `History`,
and add the `historicize` method. Also provide an overload for `asStrings`.
Clean up a little along the way in `JLineHistory.scala` and `JLineReader.scala`.
Next step: fall back to an embedded jline when the expected jline jar
is not on the classpath.
The gist of the refactor: https://gist.github.com/adriaanm/02e110d4da0a585480c1
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SI-8930 - Vector updated, +:, and :+ slow when typed as Seq[A]
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Vector was intercepting only the IndexedSeq CanBuildFrom to quickly generate new vectors. Now it intercepts immutable.Seq and collection.Seq as well.
There are other possibilities (collection.IndexedSeq), but they will probably arise rarely, and to avoid an absurdly long set of checks we would need a marker trait (that is not binary compatible).
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Fix some typos (a-c)
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I just used text search to check whether there are no more typos like
these corrected by janekdb, and by the way fixed also some other ones
which I saw.
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Fix illegal inlining of instructions accessing protected members
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There were two issues in the new inliner that would cause a
VerifyError and an IllegalAccessError.
First, an access to a public member of package protected class C can
only be inlined if the destination class can access C. This is tested
by t7582b.
Second, an access to a protected member requires the receiver object
to be a subtype of the class where the instruction is located. So
when inlining such an access, we need to know the type of the receiver
object - which we don't have. Therefore we don't inline in this case
for now. This can be fixed once we have a type propagation analyis.
https://github.com/scala-opt/scala/issues/13.
This case is tested by t2106.
Force kmpSliceSearch test to delambdafy:inline
See discussion on https://github.com/scala/scala/pull/4505. The issue
will go away when moving to indy-lambda.
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SI-7773 Restore phase id to icode filename
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Having icode output files of the form `X-24.icode` went in and
out of style using the long-form phase name because it broke
the windows nightly build somehow. Here's hoping using just the
phase id works on this year's infrastructure.
As previously, the long name is still available under `-Ydebug`,
because why not debug.
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Doc fixes
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SI-9354 ScalaDoc members added via by-name view
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Eligible views were looked up by exact from type without
including the by-name dodge.
By-name views are now included without consideration whether
ScalaDoc processes possible duplicates correctly.
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fix BigDecimal losing MathContext
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[sbt] Allow the REPL to be run from the SBT build
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- Tell SBT to that we're forking an interactive process
- Automatically add `-usejavacp` so the REPL adds the classes
from the system classloader to the compilers classpath.
JLine seems to be working from within this setup.
```
% sbt
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=384m; support was removed in 8.0
[info] Loading global plugins from /Users/jason/.sbt/0.13/plugins
[info] Loading project definition from /Users/jason/code/scala2/project
[info] *** Welcome to the sbt build definition for Scala! ***
[info] This build definition has an EXPERIMENTAL status. If you are not
[info] interested in testing or working on the build itself, please use
[info] the Ant build definition for now. Check README.md for more information.
> repl/run
[info] Running scala.tools.nsc.MainGenericRunner -usejavacp
Welcome to Scala version 2.11.6-SNAPSHOT-20150528-131650-70f0b1ded8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_25).
Type in expressions to have them evaluated.
Type :help for more information.
scala> 1 + 1
res0: Int = 2
(reverse-i-search)`1': 1 + 1
```
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Fix missing quotes in EBNF of type alias
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SI-9356 more careful assertion in back-end
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Calling `exists` on a `Symbol` triggers unpickling,
which failed for reasons I did not investigate.
Replaced `sym.exists` by `sym != NoSymbol`, which is good enough here.
Also replaced assertion by a `devWarning`, since the
logic seems too ad-hoc to actually crash the compiler when it's invalidated.
Partially reverts b45a91fe22. See also #1532.
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Improve API documentation for ListBuffer and Try
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spec: Add 'Default Arguments' heading, sentence, example
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The sentence and the accompanying example were stolen from SID-1.
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SI-9348 Fix missing last element in exclusive floating point ranges
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Fix exclusive floating point ranges to contain also the last element
when the end-start difference is not an integer multiple of step.
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Fix toolbox with varargs constructors
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It was already working for methods, but not for constructors.
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SI-8254 List SerializationProxy fails to default(Read/Write)Object
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Added `defaultWriteObject` to the beginning of `writeObject` and `defaultReadObject` to the beginning of `readObject` as required by specs:
[writing](http://docs.oracle.com/javase/6/docs/platform/serialization/spec/output.html#861), [reading](http://docs.oracle.com/javase/6/docs/platform/serialization/spec/input.html#2971).
Verified that it is a no-op in terms of serialization stream (but it provides hooks that Infinispan and others may use).
No explicit tests. If there is a change in serialization, t8549 will catch it.
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Clarify the definition of inheritance closure
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The definition now specifically mentions that C is an element of the
inheritance closure of C.
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Clean implementation of sorts for scala.util.Sorting.
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Removed code based on Sun JDK sorts and implemented new (basic) sorts from
scratch. Deferred to Java Arrays.sort whenever practical. Behavior of
`scala.util.Sorting` should be unchanged, but changed documentation to
specify when the Java methods are being used (as they're typically very fast).
A JUnit test is provided.
Performance is important for sorts. Everything is better with this patch,
though it could be better yet, as described below.
Below are sort times (in microseconds, SEM < 5%) for various 1024-element
arrays of small case classes that compare on an int field (quickSort), or
int arrays that use custom ordering (stableSort). Note: "degenerate"
means there are only 16 values possible, so there are lots of ties.
Times are all with fresh data (no re-using cache from run to run).
Results:
```
random sorted reverse degenerate big:64k tiny:16
Old Sorting.quickSort 234 181 178 103 25,700 1.4
New Sorting.quickSort 170 27 115 74 18,600 0.8
Old Sorting.stableSort 321 234 236 282 32,600 2.1
New Sorting.stableSort 239 16 194 194 25,100 1.2
java.util.Arrays.sort 124 4 8 105 13,500 0.8
java.util.Arrays.sort|Box 126 15 13 112 13,200 0.9
```
The new versions are uniformly faster, but uniformly slower than Java sorting. scala.util.Sorting has use cases that don't map easily in to Java unless everything is pre-boxed, but the overhead of pre-boxing is minimal compared to the sort.
A snapshot of some of my benchmarking code is below.
(Yes, lots of repeating myself--it's dangerous not to when trying to get
somewhat accurate benchmarks.)
```
import java.util.Arrays
import java.util.Comparator
import math.Ordering
import util.Sorting
import reflect.ClassTag
val th = ichi.bench.Thyme.warmed()
case class N(i: Int, j: Int) {}
val a = Array.fill(1024)( Array.tabulate(1024)(i => N(util.Random.nextInt, i)) )
var ai = 0
val b = Array.fill(1024)( Array.tabulate(1024)(i => N(i, i)) )
var bi = 0
val c = Array.fill(1024)( Array.tabulate(1024)(i => N(1024-i, i)) )
var ci = 0
val d = Array.fill(1024)( Array.tabulate(1024)(i => N(util.Random.nextInt(16), i)) )
var di = 0
val e = Array.fill(16)( Array.tabulate(65536)(i => N(util.Random.nextInt, i)) )
var ei = 0
val f = Array.fill(65535)( Array.tabulate(16)(i => N(util.Random.nextInt, i)) )
var fi = 0
val o = new Ordering[N]{ def compare(a: N, b: N) = if (a.i < b.i) -1 else if (a.i > b.i) 1 else 0 }
for (s <- Seq("one", "two", "three")) {
println(s)
th.pbench{ val x = a(ai).clone; ai = (ai+1)%a.length; Sorting.quickSort(x)(o); x(x.length/3) }
th.pbench{ val x = b(bi).clone; bi = (bi+1)%b.length; Sorting.quickSort(x)(o); x(x.length/3) }
th.pbench{ val x = c(ci).clone; ci = (ci+1)%c.length; Sorting.quickSort(x)(o); x(x.length/3) }
th.pbench{ val x = d(di).clone; di = (di+1)%d.length; Sorting.quickSort(x)(o); x(x.length/3) }
th.pbench{ val x = e(ei).clone; ei = (ei+1)%e.length; Sorting.quickSort(x)(o); x(x.length/3) }
th.pbench{ val x = f(fi).clone; fi = (fi+1)%f.length; Sorting.quickSort(x)(o); x(x.length/3) }
}
def ix(ns: Array[N]) = {
val is = new Array[Int](ns.length)
var i = 0
while (i < ns.length) {
is(i) = ns(i).i
i += 1
}
is
}
val p = new Ordering[Int]{ def compare(a: Int, b: Int) = if (a > b) 1 else if (a < b) -1 else 0 }
for (s <- Seq("one", "two", "three")) {
println(s)
val tag: ClassTag[Int] = implicitly[ClassTag[Int]]
th.pbench{ val x = ix(a(ai)); ai = (ai+1)%a.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
th.pbench{ val x = ix(b(bi)); bi = (bi+1)%b.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
th.pbench{ val x = ix(c(ci)); ci = (ci+1)%c.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
th.pbench{ val x = ix(d(di)); di = (di+1)%d.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
th.pbench{ val x = ix(e(ei)); ei = (ei+1)%e.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
th.pbench{ val x = ix(f(fi)); fi = (fi+1)%f.length; Sorting.stableSort(x)(tag, p); x(x.length/3) }
}
for (s <- Seq("one", "two", "three")) {
println(s)
th.pbench{ val x = a(ai).clone; ai = (ai+1)%a.length; Arrays.sort(x, o); x(x.length/3) }
th.pbench{ val x = b(bi).clone; bi = (bi+1)%b.length; Arrays.sort(x, o); x(x.length/3) }
th.pbench{ val x = c(ci).clone; ci = (ci+1)%c.length; Arrays.sort(x, o); x(x.length/3) }
th.pbench{ val x = d(di).clone; di = (di+1)%d.length; Arrays.sort(x, o); x(x.length/3) }
th.pbench{ val x = e(ei).clone; ei = (ei+1)%e.length; Arrays.sort(x, o); x(x.length/3) }
th.pbench{ val x = f(fi).clone; fi = (fi+1)%f.length; Arrays.sort(x, o); x(x.length/3) }
}
def bx(is: Array[Int]): Array[java.lang.Integer] = {
val Is = new Array[java.lang.Integer](is.length)
var i = 0
while (i < is.length) {
Is(i) = java.lang.Integer.valueOf(is(i))
i += 1
}
Is
}
def xb(Is: Array[java.lang.Integer]): Array[Int] = {
val is = new Array[Int](Is.length)
var i = 0
while (i < is.length) {
is(i) = Is(i).intValue
i += 1
}
is
}
val q = new Comparator[java.lang.Integer]{
def compare(a: java.lang.Integer, b: java.lang.Integer) = o.compare(a.intValue, b.intValue)
}
for (s <- Seq("one", "two", "three")) {
println(s)
val tag: ClassTag[Int] = implicitly[ClassTag[Int]]
th.pbench{ val x = bx(ix(a(ai))); ai = (ai+1)%a.length; Arrays.sort(x, q); xb(x)(x.length/3) }
th.pbench{ val x = bx(ix(b(bi))); bi = (bi+1)%b.length; Arrays.sort(x, q); xb(x)(x.length/3) }
th.pbench{ val x = bx(ix(c(ci))); ci = (ci+1)%c.length; Arrays.sort(x, q); xb(x)(x.length/3) }
th.pbench{ val x = bx(ix(d(di))); di = (di+1)%d.length; Arrays.sort(x, q); xb(x)(x.length/3) }
th.pbench{ val x = bx(ix(e(ei))); ei = (ei+1)%e.length; Arrays.sort(x, q); xb(x)(x.length/3) }
th.pbench{ val x = bx(ix(f(fi))); fi = (fi+1)%f.length; Arrays.sort(x, q); xb(x)(x.length/3) }
}
```
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SI-7747 Make REPL wrappers serialization friendly.
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We only need to introduce the temporary val in the imports
wrapper when we are importing a val or module defined in the REPL.
The test case from the previous commit still passes, but
we are generating slightly simpler code.
Compared to 2.11.6, these two commits result in the following
diff:
https://gist.github.com/retronym/aa4bd3aeef1ab1b85fe9
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