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On Linux, the directory listing is not automatically sorted on Mac.
This leads to non-determistic ids of Symbols of the classes in a
directory, which in turn leads to instability of the ordering of
parents within inferred refinement types.
Notable, with this patch, we will stably infer:
```
scala> case class C(); case class D(); List(C(), D()).head
defined class C
defined class D
res0: Product with Serializable = C()
```
rather than sometimes getting `Serializable with Product` on
Linux. As such, I've removed the workarounds for this instability
in two test cases.
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All of the individual ant builds that occured during `bootstrap` are
replaced by equivalent sbt builds.
- Allow extra dashes in version suffix when using SPLIT
- Clean up ScriptCommands
- Building an extra `locker` for stability testing with ant was not
necessary but sbt also drops `strap`, so we need to build again
with `quick` to get the equivalent of `strap`. The script for checking
stability is invoked directly from the bootstrap script, not from sbt.
- `STARR` and `locker` build output is still logged to `logs/builds`,
the main build runs log directly to the main console with colored
output.
- Allow `—show-log` option on partest command line in sbt
- Normalize inferred LUB in `run/t7747-repl.scala`
- Add `normalize` feature from `ReplTest` to `InteractiveTest`
- Normalize inferred LUBs in `presentation/callcc-interpreter`
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Move run/t8960 to pending
It tests the serialVersionUID field on closure classes. The field
doesn't exist for indyLambda closures.
See https://issues.scala-lang.org/browse/SI-9373
Move some reify tests to pending
They fail at runtime in GenBCode since scala is built with indyLambda
enabled:
java.lang.AssertionError: assertion failed: Bad superClass for trait JFunction1: class Any
at scala.tools.nsc.Global.assert(Global.scala:261)
at scala.tools.nsc.backend.jvm.BTypesFromSymbols.setClassInfo(BTypesFromSymbols.scala:228)
Noted in https://issues.scala-lang.org/browse/SI-9374
force t6546 to GenASM - no closure elimination in GenBCode yet
Noted in https://issues.scala-lang.org/browse/SI-9364.
Fix or disable some tests that fail because of the old optimizer
The old inliner fails more often when the library is built with
indylambda.
Noted in https://issues.scala-lang.org/browse/SI-9374.
Example: List.foreach
➜ sandbox git:(jfun) ✗ qs -Ybackend:GenASM -optimize -Yinline-warnings
Welcome to Scala version 2.12.0-20150630-220939-1cb032d806 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_45).
Type in expressions to have them evaluated.
Type :help for more information.
scala> List(1,2,3).foreach(x => x + 1)
<console>:11: warning: Could not inline required method foreach because bytecode unavailable.
List(1,2,3).foreach(x => x + 1)
^
<console>:11: warning: At the end of the day, could not inline @inline-marked method foreach
List(1,2,3).foreach(x => x + 1)
^
Upate a number of tests for having indyLambda enabled
The delambdafyLambdaClassNames tests was removed, there's nothing to
tests with indyLambda.
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Spark has been shipping a forked version of our REPL for
sometime. We have been trying to fold the patches back into
the mainline so they can defork. This is the last outstanding
issue.
Consider this REPL session:
```
scala> val x = StdIn.readInt
scala> class A(a: Int)
scala> serializedAndExecuteRemotely {
() => new A(x)
}
```
As shown by the enclosed test, the REPL, even with the
Spark friendly option `-Yrepl-class-based`, will re-initialize
`x` on the remote system.
This test simulates this by running a REPL session, and then
deserializing the resulting closure into a fresh classloader
based on the class files generated by that session. Before this
patch, it printed "evaluating x" twice.
This is based on the Spark change described:
https://github.com/mesos/spark/pull/535#discussion_r3541925
A followup commit will avoid the `val lineN$read = ` part if we
import classes or type aliases only.
[Original commit from Prashant Sharma, test case from Jason Zaugg]
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-Yrepl-class-based
Refactoring to reduce the number of if-else
Fix test.
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