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Most of this was revealed via -Xlint with a flag which assumes
closed world. I can't see how to check the assumes-closed-world
code in without it being an ordeal. I'll leave it in a branch in
case anyone wants to finish the long slog to the merge.
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Looks like emptyValDef.isEmpty was already changed to return
false, so now all that's left is a name which means something.
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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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Checking that a refinement class symbol does not override
any symbols does mean it will have to be invoke reflectively;
but the converse is not true. It can override other symbols
and still have to be called reflectively, because the
overridden symbols may also be defined in refinement classes.
scala> class Foo { type R1 <: { def x: Any } ; type R2 <: R1 { def x: Int } }
defined class Foo
scala> typeOf[Foo].member(TypeName("R2")).info.member("x": TermName).overrideChain
res1: List[$r.intp.global.Symbol] = List(method x, method x)
scala> res1 filterNot (_.owner.isRefinementClass)
res2: List[$r.intp.global.Symbol] = List()
And checking that "owner.info decl name == this" only works if
name is not overloaded.
So the logic is all in "isOnlyRefinementMember" now, and
let's hope that suffices for a while.
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This brings all the files into line with the .gitattributes
settings, which should henceforth be automatically maintained
by git.
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* all usages of ClassManifest and Manifest are replaced with tags
* all manifest tests are replaced with tag tests
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Would prefer to bake a little longer, but, scala days.
More elaboration to come.
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Implements SIP 16: Self-cleaning macros: http://bit.ly/wjjXTZ
Features:
* Macro defs
* Reification
* Type tags
* Manifests aliased to type tags
* Extended reflection API
* Several hundred tests
* 1111 changed files
Not yet implemented:
* Reification of refined types
* Expr.value splicing
* Named and default macro expansions
* Intricacies of interaction between macros and implicits
* Emission of debug information for macros (compliant with JSR-45)
Dedicated to Yuri Alekseyevich Gagarin
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Implemented great suggestion from moors. More imports in power mode,
including the contents of treedsl. Also, another swing at overcoming
the mismatched global singletons problem, this time taking advantage of
dependent method types. Amazingly, it seems to work.
Continuing in the quest to create a useful compiler hacking environment,
there is now an implicit from Symbol which allows you to pretend a
Symbol takes type parameters, and the result is the applied type based
on the manifests of the type arguments and the type constructor of the
symbol. Examples:
// magic with manifests
scala> val tp = ArrayClass[scala.util.Random]
tp: $r.global.Type = Array[scala.util.Random]
// evidence
scala> tp.memberType(Array_apply)
res0: $r.global.Type = (i: Int)scala.util.Random
// treedsl
scala> val m = LIT(10) MATCH (CASE(LIT(5)) ==> FALSE, DEFAULT ==> TRUE)
m: $r.treedsl.global.Match =
10 match {
case 5 => false
case _ => true
}
// typed is in scope
scala> typed(m).tpe
res1: $r.treedsl.global.Type = Boolean
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Making power mode startup a little less glacial, no review.
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type mismatches, for real this time. :power mode goes to phase typer
automatically.
You can get the symbols for repl-defined names more directly:
scala> case class Bippy(x: Int)
defined class Bippy
scala> intp.terms("Bippy")
res1: intp.global.Symbol = object Bippy
scala> intp.types("Bippy")
res2: intp.global.Symbol = class Bippy
scala> intp("Bippy") // tries type first
res3: intp.global.Symbol = class Bippy
scala> intp("scala.collection.Map") // falls back to fully qualified
res4: intp.global.Symbol = trait Map
I changed the implicit which used to install "tpe" and "symbol" to
install "tpe_" and "symbol_" because it was too easy to do something you
didn't mean to, like calling x.tpe where x is a Manifest.
Said implicit now handles manifest type arguments, so you can get the
full translation from a manifest representation to a compiler type, at
least for simple types and only as much as manifests work, which is not
that much. Fortunately that situation is all changing soon.
scala> List(List(1, 2, 3)).tpe_
res5: power.Type = List[List[Int]]
scala> res5.typeArgs
res6: List[power.global.Type] = List(List[Int])
Review by moors.
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Cleaning up power mode import issues (and the amazing first power mode
test) no review.
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