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author | Miles Sabin <miles@milessabin.com> | 2009-06-29 12:20:33 +0000 |
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committer | Miles Sabin <miles@milessabin.com> | 2009-06-29 12:20:33 +0000 |
commit | f5c93803e45f78c316e239f36e038e725d526a28 (patch) | |
tree | 3a3c000e5f419b12d73098b4ea6c47bb52b70cca /src | |
parent | 73a4bffc830d2ba3041dce199ea900f6b4ebd52a (diff) | |
download | scala-f5c93803e45f78c316e239f36e038e725d526a28.tar.gz scala-f5c93803e45f78c316e239f36e038e725d526a28.tar.bz2 scala-f5c93803e45f78c316e239f36e038e725d526a28.zip |
Added default implementation for debug hover in...
Added default implementation for debug hover info; export FJBG for use
in the IDE.
Diffstat (limited to 'src')
-rwxr-xr-x | src/compiler/scala/tools/nsc/interactive/Global.scala | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/interactive/Global.scala b/src/compiler/scala/tools/nsc/interactive/Global.scala index 029a98cb10..e6993f5000 100755 --- a/src/compiler/scala/tools/nsc/interactive/Global.scala +++ b/src/compiler/scala/tools/nsc/interactive/Global.scala @@ -1,6 +1,9 @@ package scala.tools.nsc.interactive +import java.io.{ PrintWriter, StringWriter } + import scala.collection.mutable.{LinkedHashMap, SynchronizedMap} +import scala.concurrent.SyncVar import scala.tools.nsc.io.AbstractFile import scala.tools.nsc.util.{SourceFile, Position, RangePosition, OffsetPosition, NoPosition, WorkScheduler} import scala.tools.nsc.reporters._ @@ -125,7 +128,30 @@ self => } } - def hoverInfo(): String = "" + def debugInfo(source : SourceFile, start : Int, length : Int): String = { + val end = start+length + val pos = rangePos(source, start, start, end) + + val tree = locateTree(pos) + val sw = new StringWriter + val pw = new PrintWriter(sw) + treePrinters.create(pw).print(tree) + pw.flush + + val typed = new SyncVar[Either[Tree, Throwable]] + askTypeAt(pos, typed) + val typ = typed.get.left.toOption match { + case Some(tree) => + val sw = new StringWriter + val pw = new PrintWriter(sw) + treePrinters.create(pw).print(tree) + pw.flush + sw.toString + case None => "<None>" + } + + source.content.view.drop(start).take(length).mkString+" : "+source.path+" ("+start+", "+end+")\n\nlocateTree:\n"+sw.toString+"\n\naskTypeAt:\n"+typ + } // ----------------- The Background Runner Thread ----------------------- |