| Commit message (Collapse) | Author | Age | Files | Lines |
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SI-6120 multiple warnings at same position.
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An error suppresses all further warnings at the same position,
but multiple warnings can be heard.
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SI-6762 rename emptyValDef to emptySelfType.
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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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Conflicts:
bincompat-backward.whitelist.conf
bincompat-forward.whitelist.conf
build.xml
src/compiler/scala/tools/nsc/typechecker/RefChecks.scala
src/library/scala/concurrent/Future.scala
src/reflect/scala/reflect/internal/Types.scala
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Callbacks internal to the implementation of Futures should be
executed with the `InternalCallbackExecutor`, rather than the
user supplied `Executor`.
In a refactoring da54f34a6, `recoverWith` and `flatMap` no longer
played by these rules. This was noticed by a persnickety test in
Play.
Before this patch, the enclosed test outputs:
% scala-hash v2.10.3-RC2 test/files/run/future-flatmap-exec-count.scala
mapping
execute()
flatmapping
execute()
execute()
recovering
execute()
execute()
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SI-7825 Consider DEFAULTMETHOD when refchecking concreteness
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There is no need to skip it as it only depends on our changes
to our JavaParser, and not on any bytecode features of Java 8.
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A class should not be required to implement a Java default method.
This commit uses `isDeferredNotDefault` in place of `isDeferred`
when finding unimplemented methods.
The test itself does not depend on Java 8 as we use scalac's
Java source parser to set things up.
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`isFunctionType` and `isTupleType` started returing true for
type constructors as of aeb73314. This led to a crash in type
printing in ScalaDoc (specfically, in ModelFactoryTypeSupport.scala)
This commit:
- fixes those methods by guarding with !isHigherKinded
- unit tests said methods
- tests the reported crasher with a ScalaDoc test.
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SI-4742 Make -Xcheckinit aware of constants.
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Members defined as `final val x = <literal>` are given
a ConstantType. The constant is folded into the accessor
method `x`, and the field itself is never initialized.
(Related discussion: SI-4605)
As such, -Xcheckinit spuriously warns when calling that
accessor.
This commit disables the checks for constants.
This will also fix the checkinit build (failure tracked as SI-7839),
which is the victim of this a spurious scolding.
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Revert #2957
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The starting bound for ValDefs in #2957 is distinct from the expected result, e.g.
[4:9]val x = [8:9]0
instead of
[0:9]val x = [8:9]0
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This reverts commit 884e1ce762d98b29594146d37b85384581d9ba96, reversing
changes made to f6fcc4431f272c707d49de68add532c452dd4b0f.
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SI-7868 Account for numeric widening in match translation
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Pattern match translation was unprepared for trees of the shape:
(0: Short) match {
case A.unapply(<unapply-selector>.toInt) <unapply> (_) => ()
case _ => ()
}
While a scrutinee is inelibigle for implicit views in order to
conform to the type of the extractor call, it is allowed to
weakly conform. In this case, the typechecker will add the
numeric widening with a `toInt` call.
This commit:
- Changes treeInfo.Unapplied to recognize this tree shape
- Changes spliceApply to recognize and preserve the widening
when substituting the unapply selector with the binder
- Tests reification of such pattern matches, which also depends
on treeInfo.Unapplied.
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Avoid null checks when emitting "".== and SomeModule.==
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- Directly count null checks, rather than diffing the textual
bytecode of the entire method
- Add a test to show that the LHS needs to be a direct module
reference, not just a tree with a module type, to elide the
null check.
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For the same reasons outlined in the previous commits.
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For which we can also elide the null check, and will in the
next commit.
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Although the same the code would be later optimized by -Yconst-opt,
we can offer the same lean byte code to those compiling without that
option by being more discerning when translating ==.
This helps people using bytecode based code coverage tools
such as jacoco that would emit "branch not covered" warnings
for the impossible null check.
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Will be somewhat leaner after the next commit.
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The bug itself was fixed earlier in 95fe19545d60ae9aa79d2c8d5665c7f3b0cbdb1a
It was caused by improper wrapping of blocks in the toolbox's parse method.
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The parser hole I found while working on the generated positions
serves as the umbrella for a host of improvements. Upgraded
positions assigned during some specific challenging situations mostly
involving the creation of synthetic trees, e.g. for comprehensions
and closures. While doing so improved some error messages.
Eliminated some of the most glaring duplication in the parser.
It's written like there is some payoff associated with being
spectacularly imperative. Not so far.
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Can't ensure range position points are meaningful when we never
see them. To limit noise, only print the point when it != start.
[x:y] // point=x, start=x, end=y
[p/x:y] // point=p, start=x, end=y
I'm open to a different syntax.
Also prints NoPosition as [X] rather than [NoPosition] because
noise is for construction workers and attenders of rock concerts.
Some range position and parser tests are included so we can see
the checkfile change when the forthcoming fix happens (either an
error message improvement or a positional one.)
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Cull extraneous whitespace.
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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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SI-7853 Regression in explicit outer
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The attempt to placate pos/t4970.scala in 55c6fd4 roused another
dragon.
We've got two levers here: the type of the symbol of the outer
accessor, and the type of its DefDef.
They have been historically out of sync due to the vaguaries of
finalResultType (which is far less vague since 671e6e03c7), but
the finicky operation of ExplicitOuter now has a hard time when
we try to bring them into line.
This stuff is notoriously difficult to understand because the
trees you see from `-Xprint` show a tpt derived from the method
symbol's info, and discards the actual tpt in the tree.
Rather than letting `DefDef(acc)` call `TypeTree(sym)` and use
`sym.tpe_*.finalResultType`, this commit computes the member type
of the accessor from the current class and explicitly uses that as
the return type of the outer accessor def.
We should try to push this a little deeper. I tried to put it into
`def TypeTree`, but that broke, among others,
run/concurrent-stream.scala. Maybe `def DefDef` and `def ValDef`?
But a localised fix is the right start as it addresses the regression
in a minimal fashion to get the IDE building again.
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15 seconds is crazy aggressive. I have fast hardware and it's still
really easy for a test to take to fifteen seconds under load.
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SI-6701, SI-7304, SI-6489, variable arity definitions refactoring
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1. macro parsing doesn't use toolbox any more but calls parser directly
2. in order for this to work parser has to be refactored to limit
usage of currentUnit and rewire it into parser's local unit
method which might use currentUnit for some parsers but will
user proper unit for UnitParser
3. similar change has to be done to make compilation unit's
reporter overridable
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For Paul, it steals focus when it runs.
For me, it fails with some platform specific extra output:
-ScriptEngineManager providers.next(): javax.script.ScriptEngineFactory: Provider apple.applescript.AppleScriptEngineFactory could not be instantiated: java.lang.UnsatisfiedLinkError: no AppleScriptEngine in java.library.path
n: Object = 10
12345678910
So off to the holding pen for now.
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SI-1909 SI-3832 SI-7007 SI-7223 Improved handling of larval objects
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It's a clunky flag used to determine very early on whether
we're in the self-call, super-call or early-init section.
In SI-6666 / fd6125428, the check was improved to consider nesting.
But, that caused this regression, as Function's haven't been
translated to classes yet, so our check for enclosing non-term
owners failed wrongly flagged definitins body of a anonymous function
as INCONSTRUCTOR.
With this patch, we correctly flag:
class C extends D {
// INCONSTRUCTOR
() => {
!INCONSTRUCTOR
}
// INCONSTRUCTOR
}
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SI-1909 modified LambdaLift to lift in auxiliary constructors methods as STATIC
so they could be called before the self-constructor was called.
That allowed for:
class Foo (x: Int) {
def this() = this( {
def bar() = 5
bar
})
}
However, if the method is in a statement that trails the self constructor call,
this is unnecessary and in fact incorrect as it robs the lifted method of `this`.
This commit uses the machinery established in SI-6666 to limit the STATIC-ness
of lifted methods to those used in arguments for self-constructor calls.
This is used exclusively; the `isAuxillaryConstructor` check wasn't the right
way to solve this, as was seen by the regression it caused in SI-3832.
A new test case shows that we can statically lift methods in super-constructor
calls, rather than just self-constructor calls.
We also have to avoid statically lifting objects in these positions. For now,
I just emit a dev warning that a VerifyError is in your future. With some more
thought we could escalate that to a implementation restriction and emit an error.
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When we're in the neighbourhood of VerifyErrors, it's better to run
the code.
This change is leading up to a fix for SI-3832, which regressed
with fix for SI-1909.
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Reducing variation of tree creation methods.
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TreeDSL has no future - it was always a temporary measure
waiting for something like quasiquotes to come along. In this
commit I cull as much of it as I can, especially the delicate
matter of creating new DefDefs and ValDefs, which I completely
turn over to the old style creators.
I unified all the symbol-based DefDef and ValDef creators under
a single method, since it was yet another place where ctrl-C and
ctrl-V were being punched with glee. Was beaten to the punch on
adding copyTypeDef to fill out the *Def creators.
Eliminated as many redundant positioning calls as I could find.
If you are creating a DefTree tree based on a symbol, it will
always have an atPos(sym.pos) { ... } wrapped around it. You
don't need another one.
All of this is motivated by positions work: positions are
assigned in so many places and in such an ad hoc fashion that
it is impossible to bring consistency to that without first
bringing some consistency to tree creation.
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This is the key ingredient so TypeTree(sym) can resist
widening the type.
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The implementation had come to depend on finalResultType
accidentally doing things beyond its charter - in particular,
widening types. After hunting down and fixing the call sites
depending on the bugs, I was able to rewrite the method to do
only what it's supposed to do.
I threw in a different way of writing it entirely to suggest how
some correctness might be obtained in the future. It's a lot
harder for a method written like this to break.
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The 2.10 fix to remove the ScriptEngine service entry
was inadvertently forwarded to 2.11.
This commit reverts and adds a test.
This situation was entirely foreseen by retronym,
proving beyond doubt that he is in fact a time traveler,
as hinted by his name. He brings bugs forward into the
future and returns into the past with fixes and other
alien technology like scalaz.
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SI-7622 Clean Up Phase Assembly
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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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merge 2.10.x to master
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Conflicts:
src/compiler/scala/tools/nsc/ast/parser/Parsers.scala
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Conflicts:
src/compiler/scala/tools/nsc/transform/ExtensionMethods.scala
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SI-7269 Rework MapLike#retains to account for desugaring change
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