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Assertion error in toAnchor #836

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olafurpg opened this issue May 5, 2017 · 3 comments
Closed

Assertion error in toAnchor #836

olafurpg opened this issue May 5, 2017 · 3 comments
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@olafurpg
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olafurpg commented May 5, 2017

Compiling

 xml"""<foo bar=${"Hello"}/>"""

with scalahost triggers an assertion error https://gist.github.com/allanrenucci/83db9369e47fd3eb3d1a599c598dc7d5

import scala.xml.quote._
object A {
  xml"""<foo bar=${"Hello"}/>"""
}
java.lang.AssertionError: assertion failed
	at scala.Predef$.assert(Predef.scala:204)
	at scala.meta.internal.scalahost.databases.AnchorOps$XtensionGPositionAnchor.toAnchor(AnchorOps.scala:25)
	at scala.meta.internal.scalahost.databases.SymbolOps$XtensionGSymbolMSymbol.toSemantic(SymbolOps.scala:26)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.success$1(AttributedSourceOps.scala:142)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.tryMstart$1(AttributedSourceOps.scala:172)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.tryFindMtree(AttributedSourceOps.scala:219)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:316)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseTrees$1(Trees.scala:2484)
	at scala.reflect.api.Trees$Traverser.traverseTrees(Trees.scala:2484)
	at scala.reflect.internal.Trees.traverseComponents$1(Trees.scala:1238)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1334)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:322)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.internal.Trees.traverseComponents$1(Trees.scala:1281)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1334)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:322)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$2(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.atOwner(Trees.scala:2507)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$1(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.traverseStats(Trees.scala:2497)
	at scala.reflect.internal.Trees.traverseComponents$1(Trees.scala:1236)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1334)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:322)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.internal.Trees.$anonfun$itraverse$1(Trees.scala:1212)
	at scala.reflect.api.Trees$Traverser.atOwner(Trees.scala:2507)
	at scala.reflect.internal.Trees.traverseMemberDef$1(Trees.scala:1207)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1331)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:322)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$2(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.atOwner(Trees.scala:2507)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$1(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.traverseStats(Trees.scala:2497)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1330)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:322)
	at scala.meta.internal.scalahost.databases.AttributedSourceOps$XtensionCompilationUnitAttributedSource$traverser$4$.traverse(AttributedSourceOps.scala:136)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$2(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.atOwner(Trees.scala:2507)
	at scala.reflect.api.Trees$Traverser.$anonfun$traverseStats$1(Trees.scala:2498)
	at scala.reflect.api.Trees$Traverser.traverseStats(Trees.scala:2497)
	at scala.reflect.internal.Trees.itraverse(Trees.scala:1330)
	at scala.reflect.internal.Trees.itraverse$(Trees.scala:1204)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16)
	at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475)

Discovered at scalacenter/scalafix#146

@xeno-by
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xeno-by commented May 5, 2017

I need to get my Anchor removal pull request in asap.

@olafurpg
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I'm unable to reproduce after #841, which removed Anchor.

@olafurpg olafurpg added this to the v1.8.0 milestone May 10, 2017
@olafurpg
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I am able to reproduce this error while running latest sbt-scalahost on the community build

java.lang.AssertionError: assertion failed
        at scala.Predef$.assert(Predef.scala:156)
        at scala.meta.internal.semantic.InputOps$XtensionGPositionMPosition.toMeta(InputOps.scala:20)
        at scala.meta.internal.semantic.SymbolOps$XtensionGSymbolMSymbol.toSemantic(SymbolOps.scala:25)
        at scala.meta.internal.semantic.AttributesOps$XtensionCompilationUnitAttributes$$anonfun$toAttributes$1$traverser$4$.scala$meta$internal$semantic$A
ttributesOps$XtensionCompilationUnitAttributes$$anonfun$traverser$$success$1(AttributesOps.scala:141)
        at scala.meta.internal.semantic.AttributesOps$XtensionCompilationUnitAttributes$$anonfun$toAttributes$1$traverser$4$.tryMpos$1(AttributesOps.scala:
183)
        at scala.meta.internal.semantic.AttributesOps$XtensionCompilationUnitAttributes$$anonfun$toAttributes$1$traverser$4$.tryFindMtree(AttributesOps.sca
la:203)
        at scala.meta.internal.semantic.AttributesOps$XtensionCompilationUnitAttributes$$anonfun$toAttributes$1$traverser$4$.traverse(AttributesOps.scala:3
22)

@olafurpg olafurpg reopened this May 10, 2017
olafurpg added a commit that referenced this issue May 10, 2017
Gracefully handle non-range positions, fixes #836.
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