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This commit adds a do-nothing phase called "Delambdafy" that will
eventually be responsible for doing the final translation of lambdas
into classes.
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Patern translation now happens earlier.
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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.
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Let optimiser components and continuations plugin opt-out
when required flags are not set.
Wasted time on a whitespace error in check file, so let
--debug dump the processed check file and its diff.
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Refactor the calculation of the "phase chain" a bit.
In particular, initial and terminal phases are not special
except that they must be head and last.
When done, filter for enabled phases. At this commit,
nobody claims to be disabled.
Additional sanity support of phases settings.
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This commit adds analysis and optimization of constants to remove
unnecessary branches. It uses abstract interpretation to determine
what constant(s) a particular stack slot or variable might or might not
hold at a given spot and uses that knowledge to eliminate branches that
cannot be taken. Its primary goal is null check removal, but it also
works for other constants.
Several tests are modified to include the new optimization phase.
Two new tests are added. One verifies that branching still works as
expected. The other verifies that branches are removed.
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In Global, SubComponent is called a phase descriptor, but it doesn't
actually have a description. (Phase itself does.) This fix adds
a description to PluginComponent so that plugins can describe what
they do in -Xshow-phases.
Elliptical descriptions
Exploded archives
Plugged-in partest
Roundup at the Little h!
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sort field accessors, necessary after typers -- apparently...
don't throw TypeError, use issueTypeError
don't run patmat phase when -Xoldpatmat
only virtualize matches when -Xexperimental
recycle cps type of match for re-typechecking:
when one of the internal cps-type-state annotations is present, strip all CPS annotations
a cps-type-state-annotated type makes no sense as an expected type (matchX.tpe is used as pt in translateMatch)
don't synth FunctionN impls during typer, only do this for PartialFunction
updated check now function synth for match is deferred until uncurry
patmat-transform try/catch with match in cps
cleanup in selective anf
remove TODO: can there be cases that are not CaseDefs -- nope
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enforced. Super calls and specialized still missing.
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Conflicts:
src/compiler/scala/tools/nsc/Global.scala
test/files/run/programmatic-main.check
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Major cleanup of reification:
* LiftCode phase has been removed
* Code has been deprecated and will be removed as we roll a new starr
* Logic related to type-directed lifting has been purged
scala.reflect.macro.Context#reify now provides the same services
as LiftCode provided (except that it returns Tree, not Code).
For testing purposes, I've retained the oh-so-convenient automagic lift.
test/files/codelib/code.jar now hosts Code.lift reimplemented in a macro,
so that the tests can continue working as if nothing has happened.
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Temporarily removed getClass from AnyVal to get build going.
Disabled anyval-childen test.
Fixed some other build problems.
Implemented step 1 + 2 of inline classes proposal.
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[recommit] Backend optimization: Inline exception handlers. Review by
dragos.
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Cleaned up and brought up to date the help text for -X and -Y options.
Made some enhancements to PhasesSetting, which are documented if you
run scalac -X or -Y. (Try it!) Disabled some dead settings and renamed
others to reflect their current purpose. No review.
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consistently, and remove things which are not being used anywhere
in the visible universe. Beyond general polish here are some of the
feature-like additions I can remember:
* -Xshow-phases now includes descriptions of the phases.
* -Xshow-class and -Xshow-object did not work as far as I could tell:
if they didn't, now they do. If they did, now they work better.
And you don't have to give it a fully qualified name anymore.
* -Xprint-icode will generate *.icode files (don't also have to say -Xprint:icode)
* counts of deprecation and unchcked warnings are given
* More documentation of what global is doing.
I tried not to break anything which might be using Global, but let me
know if I overshot somewhere. No review.
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changes necessary to plug it back in while preserving everything which
has happened since then in tests and such, but we should be the lookout
for overreversion. Review by phaller (but as a formality, I don't think
it requires direct 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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More classpath work, and cleanups in the vicinities of everything
manipulating classpaths. Review by anyone willing to slog through the
approximately dozen different ways the classpath can be influenced.
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