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Previously a map that was storing bindings of fresh hole variables with
their contents (tree & cardinality) used to be a SortedMap which had
issues with inconsistent key ordering:
"$fresh$prefix$1" < "$fresh$prefix$2"
...
"$fresh$prefix$8" < "$fresh$prefix$9"
"$fresh$prefix$9" > "$fresh$prefix$10"
This issue is solved by using a LinkedHashMap instead (keys are inserted
in the proper order.)
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Fix feature warnings in test.osgi.comp
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Reduces the amount of noise from 22 lines down to the actually
interesting 5 lines of information.
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SI-8173 add support for patterns like init :+ last to quasiquotes
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Adds support for patterns like:
val q"{ ..$init; $last }" = q"{ a; b; c }"
// init == List(q"a", q"b")
// last == q"c"
Which under the hood get compiled as `:+` patterns:
SyntacticBlock(init :+ last)
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SI-8228 Avoid infinite loop with erroneous code, overloading
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`isApplicableBasedOnArity` couldn't get of the ferris wheel after
as `followApply` kept insisting on another spin.
scala> ErrorType nonPrivateMember nme.apply
res0: $r.intp.global.Symbol = value apply
scala> res0.info
res1: $r.intp.global.Type = <error>
This commit makes `followApply` consider that an `ErrorType`
does not contain an `apply` member.
I also considered whether to do a deep check on the type
(`isErroneous`), but I can't motivate this with a test.
I tend to think we *shouldn't* do that: `List[${ErrorType}]`
still has an `apply` member that we should follow, right?
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SI-4997 deprecate StringLike.linesIterator for StringLike.lines
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Deprecated. lines is by far more consistent with the rest of the naming in the library.
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SI-8233 Fix regression in backend with boxed nulls
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Regressed in SI-7015 / 1b6661b8.
We do need to "unbox" the null (ie, drop a stack from and load
a null) in general. The only time we can avoid this is if the
tree we are adapting is a `Constant(Literal(null))`.
I've added a test for both backends. Only GenICode exhibited
the problem.
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SI-8170 Fix regression in TypeRef#transform w. PolyTypes
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Regressed in SI-8046 / edc9edb7, by my hand.
At the time, I noticed the problem: transform wasn't accounting
for the potential Poly-Type-ness of its argument, and this would
lead to under-substituted types. The commit comment of edc9edb7
shows an example.
But the remedy wasn't the right one. The root problem is
that a TypeMap over a PolyType can return one with cloned
type parameter symbols, which means we've lose the ability
to substitute the type arguments into the result.
This commit detects up front whether the type-under-transform
is a PolyType with the current TypeRef's type parameters, and
just runs the `asSeenFrom` over its result type.
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PR #3233 cleanup
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- `::.head` became a `val`; excessive accessor removed
- SerializationProxy moved to `object List`
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SI-7322 Interpolator idents must be encoded
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Otherwise, they are not found.
This matters for term names with a differential encoding.
Footnote, normally ident() encodes, but INTERPOLATIONID
is !isIdent, so that is not used here. Maybe that would
be the better improvement.
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SI-7124 make macro definitions prettier in scaladoc
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Macros are now prettier in scaladoc, by
- hiding the `macroImpl` annotation
- showing the `macro` modifier in front
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SI-7700 @unspecialized, Part Deux: Now Working.
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This annotation was introduced to allow us to mark methods within
a specialized trait as immune from specialization. In particular,
this is desirable for `Function1.{andThen, compose}`.
However, it seems we need to check for this in two places in the
specialization code base. The feature is now backed with a test.
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SI-8143 Regressions with override checks, private members
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These regressed in e609f1f20b, which excluded all private methods from
overriding checks. We should only exclude private[this] members on the
low end of a pair, as was done before that commit, and, we must also
exclude private members on the high side.
Why? Warning: reverse engineered intuition follows.
We need to report an error when if a private method in a subclass
has matches a less-private method in the super class and report an
error, lest the user be fooled into thinking it might be invoked
virtually. On the other hand, adding a private method to a super
class shouldn't invalidate the choice names of public members in
its superclasses.
I've removed the test case added by that commit and will lodge a
reworked version of it that Paul provided as a new issue. That shows
a bug with qualified private + inheritance.
In addition, the expectation of `neg/accesses.check` is reverted
to its 2.10.3 version, which I believe is correct. When it was
changed in e609f1f20b it sprouted a variation, `neg/accesses-2`,
which has now changed behaviour. The intent of that test will
be captured in the aforementioned issue covering qualified private
inheritance.
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SI-8213 AnyRefMap.getOrElseUpdate is faulty
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Altered getOrElseUpdate to be robust to the map changing out from under it as a result of calling the default value method. Side-effects FTW!
Made a comparable change in LongMap also, as it was also affected. And added a test to SetMapConsistencyTest.
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Prohibit views targeting AnyVal
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Library changes in Scala 2.10 mean that we are left with the
unfortunate situation of admitting:
scala> "": AnyVal
res0: AnyVal =
We already have explicit checks in place to prevent views
targeting `AnyRef`. This commit balances this out by prohibiting
`AnyVal`, as well.
The enclosed test shows that this case is now prevented. If multiple
implicits views are applicable, the ambiguity error is still raised;
these check comes right at the end. Maybe that ought to be changed,
but I don't think it matters too much.
I've also disabled this prohibition under -Xsource:2.10.
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More penance. Extend the unit test and don't include CR
in the line text.
This is obvious, which shows how dangerous it is to refactor
without unit tests.
My very favorite bugs are off-by-one and EOL handling, followed
closely by off-by-Int.MaxValue.
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Avoid long, slow march to AIIOBE in SourceFile#lineContent
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Fixing a regression from SI-8015.
The failure mode is kind of amusing: a while loop in `lineToString`
would count all the way to `Int.MaxValue`, and integer overflow
would foil a bounds check when looking for the 'LF' in 'CR'-'LF'.
Given that we're not a style checker to enforce that source files
end in a new-line, this commit accounts for EOF, and fixed the
overflow problem too.
A JUnit test exercises the bug and a few other variations of
`lineContent`.
While i was in the neighbourhood, I opted for a more efficient
means to slice out that line.
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SI-8199 Account for module class suffix in -Xmax-classfile-name
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The class file name of an inner class is based on the flattened
name of its owner chain.
But, if this is going to be unreasonably long, it is shortened
with the help of a MD5 hash.
However, after this shortening takes place, we sneakily add one
more character (the infamous '$') to the name when it is used
for the module class. It is thus possible to exceed the limit
by one.
The enclosed test failed on Mac with "filename too long" because
of this. I have also tested for trait implementatation classes,
but these seem to be suffixed with "$class" before the name
compactification runs, so they weren't actually a problem.
This change is binary incompatible as separately compiled
defintions and usages of named, inner classes need to agree
on this setting. Most typically, however, these long names
crop up for inner anonymous classes / functions, which are
not prone to the binary incompatiblity, assuming that their
creation hasn't be inlined to a separately compiled client.
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SI-6844 SI-8076 improve handling of function parameters in quasiquotes
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This adds support for construction and deconstruction
of implicit argument list which was originally suggested
by @cvogt.
1. Splicing vale into implicit argument list automatically
adds implicit flag to them:
val x = q"val x: Int"
q"def foo(implicit $x)"
// <=> q"def foo(implicit x: Int)"
2. One might extract implicit argument list separately from
other argument lists:
val q”def foo(...$argss)(implicit ..$impl)" =
q"def foo(implicit x: Int)
// argss is Nil, impl contains valdef for x
But this doesn't require you to always extract it separatly:
val q”def foo(...$argss)" =
q"def foo(implicit x: Int)
// argss contains valdef for x
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Previously were a bit too permissive on how splicing in function
parameter position worked. This made confusing things like
possible:
val x = TermName(“x”)
q”def foo($x)”
Now you can either splice trees in that position (ValDefs) or
you have to provide type if you splice a name.
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SI-7275 allow flattening of blocks with ..$
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1. Adds tests for new synthetic unit stripping.
2. Marks implementation-specific parts of Holes as private.
3. Trims description of iterated method a bit.
4. Provides a bit more clear wrapper for q interpolator.
5. Refactors SyntacticBlock, adds documentation.
6. Makes q"{ ..$Nil }" return q"" to be consist with extractor.
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This commit extends current splicing rules to allow flattening of
trees into other trees.
Without such support it is impossible to correctly create vals with
patterns and use it in other location as they could expand into
multiple-statement blocks:
scala> q"val (a, b) = (1, 2)"
res0: reflect.runtime.universe.Tree =
{
<synthetic> <artifact> private[this] val x$1 = scala.Tuple2(1, 2):
@scala.unchecked match {
case scala.Tuple2((a @ _), (b @ _)) => scala.Tuple2(a, b)
};
val a = x$1._1;
val b = x$1._2;
()
}
scala> q"..$res0; println(a + b)"
res1: reflect.runtime.universe.Tree =
{
<synthetic> <artifact> private[this] val x$1 = scala.Tuple2(1, 2):
@scala.unchecked match {
case scala.Tuple2((a @ _), (b @ _)) => scala.Tuple2(a, b)
};
val a = x$1._1;
val b = x$1._2;
println(a.$plus(b))
}
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Error out type args on binary op after emitting error.
Let the parse limp into the whirring blades.
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Newline after empty string interp
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Consume the newline non-raw for safe handling after
single-line interpolation.
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-Xsource:2.10: lenient treatment of variance in <:<, =:=
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The soundness hole was exploited in Scalaz. They have fixed their
codebase correctly for Scalac 7.1.x, but have less freedom to
break source compatiblity in 7.0.x.
After this commit, they could choose to compile that branch with
-Xsource:2.10
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SI-8171 make tq"" an alias for empty type tree
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ListMap.tail is returning wrong result
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Reverted the commit that introduced the bug, and modified HashMap to no
longer assume that tail is O(1).
Review by @Ichoran, @soc
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Preliminary support for building and testing with Java 8
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