Moved interactive sources into separate directory.

As with the preceding commit, this has build-internal
effects only.

1 files changed, 51 insertions, 0 deletions

diff --git a/src/interactive/scala/tools/nsc/interactive/PresentationCompilerThread.scala b/src/interactive/scala/tools/nsc/interactive/PresentationCompilerThread.scala
new file mode 100644
index 0000000000..a2d8e5d49a
--- /dev/null
+++ b/src/interactive/scala/tools/nsc/interactive/PresentationCompilerThread.scala
@@ -0,0 +1,51 @@
+/* NSC -- new Scala compiler
+ * Copyright 2009-2013 Typesafe/Scala Solutions and LAMP/EPFL
+ * @author Martin Odersky
+ * @author Iulian Dragos
+ */
+package scala.tools.nsc.interactive
+
+/** A presentation compiler thread. This is a lightweight class, delegating most
+ *  of its functionality to the compiler instance.
+ *
+ */
+final class PresentationCompilerThread(var compiler: Global, name: String = "")
+  extends Thread("Scala Presentation Compiler [" + name + "]") {
+
+  /** The presentation compiler loop.
+   */
+  override def run() {
+    compiler.debugLog("starting new runner thread")
+    while (compiler ne null) try {
+      compiler.checkNoResponsesOutstanding()
+      compiler.log.logreplay("wait for more work", { compiler.scheduler.waitForMoreWork(); true })
+      compiler.pollForWork(compiler.NoPosition)
+      while (compiler.isOutOfDate) {
+        try {
+          compiler.backgroundCompile()
+        } catch {
+          case ex: FreshRunReq =>
+            compiler.debugLog("fresh run req caught, starting new pass")
+        }
+        compiler.log.flush()
+      }
+    } catch {
+      case ex @ ShutdownReq =>
+        compiler.debugLog("exiting presentation compiler")
+        compiler.log.close()
+
+        // make sure we don't keep around stale instances
+        compiler = null
+      case ex: Throwable =>
+        compiler.log.flush()
+
+        ex match {
+          case ex: FreshRunReq =>
+            compiler.debugLog("fresh run req caught outside presentation compiler loop; ignored") // This shouldn't be reported
+          case _ : Global#ValidateException => // This will have been reported elsewhere
+            compiler.debugLog("validate exception caught outside presentation compiler loop; ignored")
+          case _ => ex.printStackTrace(); compiler.informIDE("Fatal Error: "+ex)
+        }
+    }
+  }
+}