Aladdin - Scala Bugtracking

	[#365]	project: compiler	priority: medium	category: bug
	submitter	assigned to	status	date submitted
	Matthias	Burak	fixed	2004-09-29 09:48:22.0
subject	Unbalanced XML literals
code	object T { val x = <a><b></b>; }
what happened	Crashes the compiler: T.scala:4: unclosed XML literal Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 36 at scala.tools.scalac.ast.parser.Scanner$SourceIterator$class.raw(Scanner.scala:93) at scala.tools.scalac.ast.parser.Scanner$class.xNext(Scanner.scala:916) at scala.tools.scalac.ast.parser.MarkupParser$class.nextch(MarkupParser.scala:472) at scala.tools.scalac.ast.parser.MarkupParser$class.xText(MarkupParser.scala:377) at scala.tools.scalac.ast.parser.MarkupParser$class.content(MarkupParser.scala:279) at scala.tools.scalac.ast.parser.MarkupParser$class.element(MarkupParser.scala:299) at scala.tools.scalac.ast.parser.MarkupParser$class.xLiteral(MarkupParser.scala:408) at scala.tools.scalac.ast.parser.Parser$class.simpleExpr(Parser.scala:1019) at scala.tools.scalac.ast.parser.Parser$class.prefixExpr(Parser.scala:998) at scala.tools.scalac.ast.parser.Parser$class.postfixExpr(Parser.scala:961) at scala.tools.scalac.ast.parser.Parser$class.expr(Parser.scala:919) at scala.tools.scalac.ast.parser.Parser$class.expr(Parser.scala:845) at scala.tools.scalac.ast.parser.Parser$class.equalsExpr(Parser.scala:797) at scala.tools.scalac.ast.parser.Parser$class.patDefOrDcl(Parser.scala:1743) at scala.tools.scalac.ast.parser.Parser$class.defOrDcl(Parser.scala:1697) at scala.tools.scalac.ast.parser.Parser$$anon$7.apply(Parser.scala:2085) at scala.tools.scalac.ast.parser.Parser$$anon$7.apply(Parser.scala:2085) at scala.tools.scalac.ast.parser.Parser$class.joinComment(Parser.scala:173) at scala.tools.scalac.ast.parser.Parser$class.templateStatSeq(Parser.scala:2085) at scala.tools.scalac.ast.parser.Parser$class.templateBody(Parser.scala:2006) at scala.tools.scalac.ast.parser.Parser$class.classTemplate(Parser.scala:1963) at scala.tools.scalac.ast.parser.Parser$class.objectDef(Parser.scala:1933) at scala.tools.scalac.ast.parser.Parser$class.clsDef(Parser.scala:1724) at scala.tools.scalac.ast.parser.Parser$$anon$6.apply(Parser.scala:2058) at scala.tools.scalac.ast.parser.Parser$$anon$6.apply(Parser.scala:2058) at scala.tools.scalac.ast.parser.Parser$class.joinComment(Parser.scala:173) at scala.tools.scalac.ast.parser.Parser$class.topStatSeq(Parser.scala:2058) at scala.tools.scalac.ast.parser.Parser$class.compilationUnit(Parser.scala:2195) at scala.tools.scalac.ast.parser.Parser$class.parse(Parser.scala:64) at scala.tools.scalac.ast.parser.ParserPhase$$anon$0.apply(ParserPhase.scala:21) at scala.tools.scalac.ast.parser.ParserPhase$$anon$0.apply(ParserPhase.scala:19) at scala.Iterator$class.foreach(Iterator.scala:252) at scala.tools.scalac.ast.parser.ParserPhase$class.apply(ParserPhase.scala:19) at scalac.Global.compile(Global.java:390) at scalac.Global.compile(Global.java:360) at scala.tools.scalac.Main$.main1(Main.scala:45) at scala.tools.scalac.Main$.main(Main.scala:28) at scala.tools.scalac.Main.main(Main.scala:28)
what expected	A useful error message.
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Changes of this bug report

Matthias edited on 2004-09-29 10:08:59.0

Burak edited on 2004-09-30 12:04:16.0

I fixed this to the following. The second error message is garbage, but not easy to avoid.

te.scala:2: missing end tag in XML literal for 
  val x = ;
          ^
te.scala:4: ';' expected but something found.

^
two errors found

Matthias edited on 2004-10-12 10:20:53.0

I still get exceptions for unbalanced XML literals. Here's an example:

object T {
  val x = ;
}

Matthias edited on 2004-10-12 10:22:25.0

Oops, my brackets got lost. Ok, here's another try:

object T {
  val x = <a>;
}

Burak edited on 2004-10-12 10:35:12.0

not reproducible, are you using the latest check-out? I get:

test.scala:2: missing end tag in XML literal for 
  val x = <a>
          ^
test.scala:4: ';' expected but something found.

^