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Apparently my flailing attempts to make things faster earned me the
pity of Tiark, who sent this monster patch which he probably dashed
off before the appetizers had been cleared away. All the steak is his
but I threw in a little sizzle so I could feel like a part of things.
It knocks about a bazillion miniseconds off the time spent in implicit
search.
This is the same patch martin already endorsed, give or take several
hundred lines of diff, so I will say no review, even though I know it
will be hard to look away. I trimmed most of the "speculative code"
(that is, the commented out bits) because it's getting awfully busy
along those sidelines. I will preserve the ideas in some more structured
form.
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Fix 'Symbol.companionModule' for the resident mode compiler. It was
confused by having modules being translated to lazy values. The
direct consequence was a crash in the build manager when looking at a
constructor using a default argument (compiled separately), but only on
the second run.
The resident compiler may run many times over, and symbols may be
reused. Therefore, a module symbol that has been translated to a lazy
val by refchecks is not guaranteed to have MODULE set on the next run
(even before refcheck). Flags are not part of symbol history. Instead we
rely on the fact that a synthetic lazy value must have been a module.
review by odersky.
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Explaining something for the (largeish N)th time finally awoke me to
the fact that software can explain things. I labored a long time over
this error message: I'm sure it can still use work (and/or it will drive
scalaz users off some kind of cliff) but the simple common case people
have so much trouble with is lit up like a christmas tree and for this I
will take some bullets.
build/pack/bin/scala -e 'class Foo[T] ; Set[Foo[AnyRef]]() + new
Foo[String]' :1: error: type mismatch; found : this.Foo[String]
required: this.Foo[java.lang.Object] Note: String <: java.lang.Object,
but class Foo is invariant in type T. You may wish to define T as +T
instead. (SLS 4.5) class Foo[T] ; Set[Foo[AnyRef]]() + new Foo[String]
^
Review by moors.
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Closes #3059, #3895 (the only difference between this and r23232 is the
forced info transformation that ensures that nested objects are viewed
as lazy vals). sbt integration requires new starr for this commit to
work.
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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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If I work on this patch any longer without checking in I will go
stark raving mad. It is broken up into a couple pieces. This one is
the changes to test/. It includes fixing a bunch of tests, removing
deprecated constructs, moving jars used by tests to the most specific
plausible location rather than having all jars on the classpath of all
tests, and some filesystem layout change (continuations get their whole
own srcpath.) This would be the world's most tedious review, so let's
say no review.
[Note: after this commit, I doubt things will build very smoothly until
the rest of the partest changes follow. Which should only be seconds,
but just in case.]
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Checking the symbols of parameters in overloaded methods didn't seem
to work in all cases. Apparently the enclosing class of the owner of
the parameter was changing during the compilations from trait to the
implementation class. This was causing annoying excessive compilation
for Types.scala.
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Fixes the problem mentioned in #2882, which seems to be the reason for #2280 - allow simple ananlysis on java sources. Review by dragos
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Exclude anonymous function classes from the definitions in dependency
analysis. This was causing spurious errors in for example Global.scala
and Interpreter.scala because of fresh names numbering. Also cleanup up
some code. No review.
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Better test for checking existential types, where symbols not
necessarily have the same name. Added test for that. The problem
manifested itself in Globals.scala for variable classpath causing
execissive compilation without any reason. No review.
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Hack for the refined build manager to print info in a deterministic way.
No review.
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Changed the info statements in refined build manager to print the
information in more consistent way, so that we can test it using
partest. Added more tests for build manager, more to follow... No
review.
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