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Quick-fix #2704, to get Olaf unblocked. #2762

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Merged
merged 1 commit into from
Jun 23, 2017

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DarkDimius
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This is not a proper fix, it just fixes the crash.
We need to figure out why this happens and handle it correctly.

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Hello, and thank you for opening this PR! 🎉

All contributors have signed the CLA, thank you! ❤️

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@DarkDimius DarkDimius requested a review from olafurpg June 15, 2017 09:15
@@ -224,7 +224,8 @@ class DottyBackendInterface(outputDirectory: AbstractFile, val superCallsMap: Ma
def shouldEmitAnnotation(annot: Annotation): Boolean = {
annot.symbol.isJavaDefined &&
retentionPolicyOf(annot) != AnnotationRetentionSourceAttr &&
annot.args.isEmpty
annot.args.isEmpty &&
!annot.tree.isInstanceOf[Block] // unblocking Olaf, needs a proper fix
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Does this mean the @Fork annotation is not emitted to bytecode? I think the annotation is necessary for the jmh benchmarks to run.

It might also be good to reference the issue in the comment.

@@ -527,10 +527,17 @@ class DottyBackendInterface(outputDirectory: AbstractFile, val superCallsMap: Ma

def assocsFromApply(tree: Tree) = {
tree match {
case Block(_, expr) => assocsFromApply(expr)
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This produces compile-errors when I run dotty-compiler-bootstrapped/publishLocal

[error] /Users/ollie/dev/dotty/compiler/src/dotty/tools/backend/jvm/DottyBackendInterface.scala:530: recursive method assocsFromApply needs result type
[error]       case Block(_, expr) => assocsFromApply(expr)
[error]                              ^

Should I be running a different command?

@OlivierBlanvillain
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@DarkDimius Can we get this in?

@olafurpg
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I am unable to reproduce the scala/compiler-benchmark match error with this fix. Instead, a new assertion error appears in DottyBackendInterface, but that's a separate issue.

@DarkDimius
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@OlivierBlanvillain thanks for helping out. I think we should get this in: it fixes compilation crash.

@DarkDimius DarkDimius merged commit f77e8de into scala:master Jun 23, 2017
odersky added a commit that referenced this pull request Jul 20, 2017
Fix #2762: Make sure constrainResult does not change context when false
@allanrenucci allanrenucci deleted the unblock-olaf branch December 14, 2017 19:25
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4 participants