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There were two architectural errors here, which confused TreeTransforms and MiniPhases
and which caused "NotDefinedHere" on transformFollowing:
1. TreeTransforms should not have idx fields, MiniPhases have them.2
2. TreeTransformers initialize arrays of MiniPhases not TreeTransforms.
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Should replace destructive inits.
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Typed MemberDef trees now take the modifiers from their symbol's data.
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I reiterate my suspicion that these tests are too specific. So far, all these test failures were spurious. They created work without giving a benefit.
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Most transformations are subclasses of phase. Having a generic name
like `name` in scope everywhere is therefore very risky.
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1) Add copiers with default arguments, to avoid boilerplate
2) All copiers are now curried wrt first argument (which is
the original tree).
We already make use of the new features in cpy.DefDef, but not yet elsewhere.
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TreeTransforms are no longer phases. This allows to generate
new transforms in prepare... methods without running into the
problem that thee new transforms are undefined as phases.
It also makes for a cleaner separation of concerns.
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1) We now always generate companion objects for classes. This is done in
mini-phase "companions", which also assures that companion-modules appear
after companion-classes.
2) PostTyperTransformers is gone; the part which normalizes trees has been
rolled into TreeTransform and the part which reordered companion classes
and modules is now in Companions.
Note: Some tests were deisabled; should be re-enabled by Dmitry where needed.
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We are already over limit on output size imposed by travis that is shown
in webpage, if we'll continue to add tests will be soon over limit even
to run builds.
This commit disables printing of classpath, and removes printlns in
several places.
In order for ShowClassTests to print info as is was printing
previously, please set "test.ShowClassTests.verbose" property.
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Wrong helper method was used.
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All MiniPhases now as are full-fledged phases,
and are given their own periods and can register DenotTransformers.
MiniPhases belonging to same group(list) will be squashed to single phase.
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Creates accessors for lazy vals:
1) lazy local vals are rewritten to dotty.runtime.Lazy*** holders
2) for a non-volatile field lazy val create a non-thread-safe accessor and flag:
2.a) if lazy val type indicates that val is not nullable, uses null value as a flag
2.b) else uses boolean flag for sake of performance, method size, and
allowing more jvm optimizations
3) for a volatile field lazy val use double locking scheme, that guaranties no
spurious deadlocks, using long bits as bitmaps and creating companion
objects to store offsets needed for unsafe methods.
Conflicts:
test/dotc/tests.scala
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CreateCompanionObjectTests were re-enabled. They failed in a previous version but succeed again in the latest commit.
Also uncurry.scala got renamed to curried.scala.
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Many small and large changes. Added samplePhase to demonstrate functionality.
To test functioning, run the compiler with args
tests/pos/uncurry.scala -Ylog:sample,terminal
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A transformer that provides a convenient way to create
companion objects.
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1) reorders companion objects so that they allways follow matching
classes
2) removes imports and named arguments
3) rewrites all trees holding types are to TypeTrees
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1) using fast tracks in case node type isn't altered by Transformation;
2) using pre-computed hints(nxTransformXXX arrays) to quickly jump to next transformation interested in transforming particular Tree type;
3) using pre-computed hints(nxPrepareXXX arrays) to know which transformations are going to 'prepare' for transforming particular Tree type;
4) recomputing those hints in case some transformation changed implementation class during 'prepare';
5) TreeTransform is now responsible of calling transformFollowing on nodes created by it.
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